From fluffy@cisco.com Tue Jan 11 14:16:03 2011 Return-Path: X-Original-To: core@core3.amsl.com Delivered-To: core@core3.amsl.com Received: from localhost (localhost [127.0.0.1]) by core3.amsl.com (Postfix) with ESMTP id 4BCD03A687A for ; Tue, 11 Jan 2011 14:16:03 -0800 (PST) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -111.564 X-Spam-Level: X-Spam-Status: No, score=-111.564 tagged_above=-999 required=5 tests=[AWL=1.035, BAYES_00=-2.599, GB_I_INVITATION=-2, RCVD_IN_DNSWL_HI=-8, USER_IN_WHITELIST=-100] Received: from mail.ietf.org ([64.170.98.32]) by localhost (core3.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id wsRDK0XTdUTn for ; Tue, 11 Jan 2011 14:16:01 -0800 (PST) Received: from sj-iport-5.cisco.com (sj-iport-5.cisco.com [171.68.10.87]) by core3.amsl.com (Postfix) with ESMTP id DF6783A6405 for ; Tue, 11 Jan 2011 14:16:01 -0800 (PST) Authentication-Results: sj-iport-5.cisco.com; dkim=neutral (message not signed) header.i=none X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: AvsEAKplLE2rR7Hu/2dsb2JhbACkOXOkRJhegweCRQSEZzyEdXSDIA Received: from sj-core-5.cisco.com ([171.71.177.238]) by sj-iport-5.cisco.com with ESMTP; 11 Jan 2011 22:18:19 +0000 Received: from [192.168.4.2] (rcdn-fluffy-8711.cisco.com [10.99.9.18]) by sj-core-5.cisco.com (8.13.8/8.14.3) with ESMTP id p0BMIHnv008184 for ; Tue, 11 Jan 2011 22:18:17 GMT From: Cullen Jennings Content-Type: text/plain; charset=windows-1252 Content-Transfer-Encoding: quoted-printable Date: Tue, 11 Jan 2011 15:19:51 -0700 References: <20110111185038.DC9FE3A6A7E@core3.amsl.com> To: core WG Message-Id: <750EFF06-3751-43A7-AE7C-BDF3D0F86C0F@cisco.com> Mime-Version: 1.0 (Apple Message framework v1082) X-Mailer: Apple Mail (2.1082) Subject: [core] Fwd: IAB and INT Area Workshop on "Interconnecting Smart Objects with the Internet" X-BeenThere: core@ietf.org X-Mailman-Version: 2.1.9 Precedence: list List-Id: "Constrained RESTful Environments \(CoRE\) Working Group list" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 11 Jan 2011 22:16:03 -0000 FYI Begin forwarded message: > From: IETF Secretariat > Date: January 11, 2011 11:50:38 AM MST > To: IETF Announcement list > Subject: IAB and INT Area Workshop on "Interconnecting Smart Objects = with the Internet"=20 >=20 > The Internet Architecture Board and the IETF Internet Area will hold a > workshop on the Friday, 25th March 2011 in Prague on the topic: >=20 > "Interconnecting Smart Objects with the Internet" >=20 > Attached to this workshop is a tutorial day on the same topic on > Saturday, 26th March 2011. Please find more information about it at: > http://www.iab.org/about/workshops/smartobjects/tutorial.html >=20 > - Background >=20 > Today's Internet is experienced by users as a set of applications, = such > as email, instant messaging, and social networks. While these = applications > do not require users to be present at the time of service execution in > many cases they are. There are also substantial differences in = performance > between the various end devices, but in general end devices = participating > in the Internet are considered to have high performance. >=20 > As we move forward with the interconnection of all kinds of devices = via > the Internet, these characteristics will change. The term "Internet of > Things" denotes a trend where a large number of devices benefit from > communication services that use Internet protocols. Many of these = devices > are not directly operated by humans, but exist as components in = buildings, > vehicles, and the environment. There will be a lot of variation in the > computing power, available memory, and communications bandwidth = between > different types of devices. >=20 > Many of these devices provide new services or provide more value for > previously unconnected devices. Some devices have been connected in > various legacy ways in the past but are now migrating to the use of = the > Internet Protocol, sharing the same communications medium between all > applications and enabling rich communications services. >=20 > Much of this development can simply run on existing Internet = protocols. > For instance, home entertainment and monitoring systems often offer a = web > interface to the end user. In many cases the new, constrained = environments > can benefit from additional protocols that help optimize the > communications and lower the computational requirements. Examples of > standardization efforts targeted for these environments include the > "Constrained RESTful Environments (CoRE)", IPv6 over Low power WPAN > (6LoWPAN)", and Routing Over Low power and Lossy networks (ROLL)" = working > groups at the IETF. >=20 > This workshop aims to explore the experience and approaches taken by > researchers and developers of Internet technology, when considering = the > characteristics of constrained devices. Engineers know that many = design > considerations need to be taken into account when developing protocols = and > architecture. Balancing between the conflicting goals of computing > performance, code size, economical incentives, and security is often > difficult, as illustrated by Clark, et al. in "Tussle in Cyberspace: > Defining Tomorrow's Internet", see > http://groups.csail.mit.edu/ana/Publications/PubPDFs/Tussle2002.pdf >=20 > This workshop aims to discuss the experience and approaches taken when > designing protocols and architectures for interconnecting smart = objects to > the Internet. To frame the discussion we suggest, as examples, to > investigate the area of integration in the following categories: > * Scalability > * Power efficiency > * Interworking between different technologies and network domains > * Usability and manageability > * Security and Privacy >=20 > The goal of the IETF is "to make the Internet work better" and the > workshop organizers are interested in receiving contributions that = support > this goal. Results may lead to guidelines and recommendations, = proposals > for new standards development, start of new research activities, and = the > documentation of best current practices regarding implementation and > configuration. >=20 > - Workshop Style >=20 > The workshop=82s main focus will be on the discussions of technical = topics. > (This is not a mini-conference where every author just briefly talks = about > their papers.) >=20 > In order to keep the group at a manageable size, participants are > required to submit a position paper as an expression of interest. > Submitters of accepted position papers will be invited to attend the > workshop. Active participation will be expected. >=20 > The workshop will be structured as a series of working sessions > punctuated by invited speakers who will present relevant background > information or controversial ideas that help participants reach a = deeper > understanding of the subject. The organizing committee may ask = submitters > of particularly salient papers to present their ideas and experiences = at > the workshop. For each slot, there will be one or two invited > controversial speakers, and group work on the problem that=82s = identified, > hopefully reaching either a deeper understanding of the problem or = some > means of approaching it. >=20 > - Important Dates >=20 > Position papers must be submitted at latest February, 11th, 2011. = Note: > An early submission allows us to provide you feedback! >=20 > Submitted position papers will be reviewed immediately by the program > organizers and an invitation to the workshop will be sent to one of = the > paper authors. At the latest, invitations will be distributed by = February, > 25th. >=20 > This one-day workshop will take place on Friday, 25th March, 2011, = right > before the 80th IETF meeting in Prague, which starts on Sunday, 27th > March. Independent of this workshop but relevant for the participants, = are > tutorial events on Saturday, 26th March 2011. These tutorials will = focus > on ongoing IETF efforts related to the IETF CoRE, ROLL, and 6LoWPAN > working groups. More details can be found at: >=20 > - Position Paper Requirements >=20 > Interested parties must submit a brief contribution describing their = work > or approach, as it relates to the workshop theme. We welcome visionary > ideas for how to tackle the integration of constrained devices, as = well as > write-ups of deployment experience, and lessons-learned from = successful or > failed attempts at integrating these constrained devices with the > Internet. Contributions are not required to be original in content. >=20 > We solicit brief write-ups with 1 to 3 pages, formatted in HTML, PDF, = or > plain text (for example as a submitted Internet Draft). We encourage = paper > authors to limit themselves on the most important challenge. A focused > message will be key! Accepted position papers will be published (in > addition to meeting minutes, slides, and a workshop report). >=20 > Please send your position paper to iot-workshop-prep@lists.i1b.org. >=20 > - Venue >=20 > The planned date and location for the workshop is Friday, March 25th, = in > Prague. Details about the meeting venue will be provided to the = invited > workshop participants. During the breaks coffee and tea will be = served. >=20 > There are no plans for remote participation. Minutes of discussions = will > be available, and offers to organize audio recording would be gladly > appreciated. >=20 > - Workshop Organizers >=20 > We look forward to your input. The workshop organizers are Jari Arkko > (Internet Area Director), Hannes Tschofenig (IAB), Bernard Aboba = (IAB), > Carsten Bormann (CoRE and 6LoWPAN WG Chair), David Culler (ROLL WG = Chair), > Lars Eggert (Transport Area Director, and upcoming IRTF Chair), JP = Vasseur > (ROLL WG Chair), Stewart Bryant (Routing Area Director), Adrian Farrel > (Routing Area Director), Ralph Droms (Internet Area Director), = Geoffrey > Mulligan (6LoWPAN WG Chair), Alexey Melnikov (Applications Area = Director), > Peter Saint-Andre (Applications Area Director), Marcelo Bagnulo (IAB), > Zach Shelby (Smart Power Directorate), Isidro Ballesteros Laso = (European > Commission), Fred Baker (Member of the Smart Power Directorate and = liaison > to the US Smart Grid Interoperability Panel - SGIP). >=20 > Up-to-date information about the workshop is available at: > http://www.iab.org/about/workshops/smartobjects/ >=20 > Feel free to contact us at iot-workshop-prep@lists.i1b.org. > _______________________________________________ > IETF-Announce mailing list > IETF-Announce@ietf.org > https://www.ietf.org/mailman/listinfo/ietf-announce From fluffy@cisco.com Wed Jan 12 00:17:16 2011 Return-Path: X-Original-To: core@core3.amsl.com Delivered-To: core@core3.amsl.com Received: from localhost (localhost [127.0.0.1]) by core3.amsl.com (Postfix) with ESMTP id 1E77C3A6B11 for ; Wed, 12 Jan 2011 00:17:16 -0800 (PST) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -111.576 X-Spam-Level: X-Spam-Status: No, score=-111.576 tagged_above=-999 required=5 tests=[AWL=1.023, BAYES_00=-2.599, GB_I_INVITATION=-2, RCVD_IN_DNSWL_HI=-8, USER_IN_WHITELIST=-100] Received: from mail.ietf.org ([64.170.98.32]) by localhost (core3.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id DpC5kOP9XQo4 for ; Wed, 12 Jan 2011 00:17:14 -0800 (PST) Received: from sj-iport-1.cisco.com (sj-iport-1.cisco.com [171.71.176.70]) by core3.amsl.com (Postfix) with ESMTP id 729383A6B0C for ; Wed, 12 Jan 2011 00:17:14 -0800 (PST) Authentication-Results: sj-iport-1.cisco.com; dkim=neutral (message not signed) header.i=none X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: AvsEAMLyLE2rR7Hu/2dsb2JhbACkPXOjHph8gweCRQSEZzyEdXSDIA Received: from sj-core-5.cisco.com ([171.71.177.238]) by sj-iport-1.cisco.com with ESMTP; 12 Jan 2011 08:19:33 +0000 Received: from [192.168.4.2] (rcdn-fluffy-8711.cisco.com [10.99.9.18]) by sj-core-5.cisco.com (8.13.8/8.14.3) with ESMTP id p0C8JVBV016065 for ; Wed, 12 Jan 2011 08:19:32 GMT From: Cullen Jennings Content-Type: text/plain; charset=windows-1252 Content-Transfer-Encoding: quoted-printable Date: Wed, 12 Jan 2011 01:21:05 -0700 References: <90A5770E-B66E-43A8-A879-D72FE091C422@gmx.net> To: core WG Message-Id: Mime-Version: 1.0 (Apple Message framework v1082) X-Mailer: Apple Mail (2.1082) Subject: [core] Fwd: **Tutorial** on "Interconnecting Smart Objects with the Internet" X-BeenThere: core@ietf.org X-Mailman-Version: 2.1.9 Precedence: list List-Id: "Constrained RESTful Environments \(CoRE\) Working Group list" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 12 Jan 2011 08:17:16 -0000 FYI Begin forwarded message: > From: Hannes Tschofenig > Date: January 12, 2011 12:51:28 AM MST > To: IETF Announcement list , IETF Discussion = > Subject: **Tutorial** on "Interconnecting Smart Objects with the = Internet"=20 >=20 > Hi all,=20 >=20 > In case you have not read through the announcement text I wanted to = draw your attention to the tutorial day (Saturday, 26th March 2011) that = is attached to the workshop. =20 >=20 > The tutorials are open for everyone BUT there are two constraints: >=20 > 1) We have to limit the number of participants (because of the size of = the available room) >=20 > 2) You need to put your name on a list. Deadline is 11th February = 2011. > The registration page is: http://www.doodle.com/xarbbx7b4cah9wfn >=20 > Hence, if you are not quick enough you may not be able to attend the = workshop.=20 >=20 > More information about the tutorial, including a preliminary agenda, = can be found at:=20 > http://www.iab.org/about/workshops/smartobjects/tutorial.html >=20 > Ciao > Hannes >=20 > PS: We are still looking for sponsors. It would be nice to offer = coffee & refreshments during the day to the participants, for example.=20= >=20 > On Jan 11, 2011, at 8:50 PM, IETF Secretariat wrote: >=20 >> The Internet Architecture Board and the IETF Internet Area will hold = a >> workshop on the Friday, 25th March 2011 in Prague on the topic: >>=20 >> "Interconnecting Smart Objects with the Internet" >>=20 >> Attached to this workshop is a tutorial day on the same topic on >> Saturday, 26th March 2011. Please find more information about it at: >> http://www.iab.org/about/workshops/smartobjects/tutorial.html >>=20 >> - Background >>=20 >> Today's Internet is experienced by users as a set of applications, = such >> as email, instant messaging, and social networks. While these = applications >> do not require users to be present at the time of service execution = in >> many cases they are. There are also substantial differences in = performance >> between the various end devices, but in general end devices = participating >> in the Internet are considered to have high performance. >>=20 >> As we move forward with the interconnection of all kinds of devices = via >> the Internet, these characteristics will change. The term "Internet = of >> Things" denotes a trend where a large number of devices benefit from >> communication services that use Internet protocols. Many of these = devices >> are not directly operated by humans, but exist as components in = buildings, >> vehicles, and the environment. There will be a lot of variation in = the >> computing power, available memory, and communications bandwidth = between >> different types of devices. >>=20 >> Many of these devices provide new services or provide more value for >> previously unconnected devices. Some devices have been connected in >> various legacy ways in the past but are now migrating to the use of = the >> Internet Protocol, sharing the same communications medium between all >> applications and enabling rich communications services. >>=20 >> Much of this development can simply run on existing Internet = protocols. >> For instance, home entertainment and monitoring systems often offer a = web >> interface to the end user. In many cases the new, constrained = environments >> can benefit from additional protocols that help optimize the >> communications and lower the computational requirements. Examples of >> standardization efforts targeted for these environments include the >> "Constrained RESTful Environments (CoRE)", IPv6 over Low power WPAN >> (6LoWPAN)", and Routing Over Low power and Lossy networks (ROLL)" = working >> groups at the IETF. >>=20 >> This workshop aims to explore the experience and approaches taken by >> researchers and developers of Internet technology, when considering = the >> characteristics of constrained devices. Engineers know that many = design >> considerations need to be taken into account when developing = protocols and >> architecture. Balancing between the conflicting goals of computing >> performance, code size, economical incentives, and security is often >> difficult, as illustrated by Clark, et al. in "Tussle in Cyberspace: >> Defining Tomorrow's Internet", see >> http://groups.csail.mit.edu/ana/Publications/PubPDFs/Tussle2002.pdf >>=20 >> This workshop aims to discuss the experience and approaches taken = when >> designing protocols and architectures for interconnecting smart = objects to >> the Internet. To frame the discussion we suggest, as examples, to >> investigate the area of integration in the following categories: >> * Scalability >> * Power efficiency >> * Interworking between different technologies and network domains >> * Usability and manageability >> * Security and Privacy >>=20 >> The goal of the IETF is "to make the Internet work better" and the >> workshop organizers are interested in receiving contributions that = support >> this goal. Results may lead to guidelines and recommendations, = proposals >> for new standards development, start of new research activities, and = the >> documentation of best current practices regarding implementation and >> configuration. >>=20 >> - Workshop Style >>=20 >> The workshop=82s main focus will be on the discussions of technical = topics. >> (This is not a mini-conference where every author just briefly talks = about >> their papers.) >>=20 >> In order to keep the group at a manageable size, participants are >> required to submit a position paper as an expression of interest. >> Submitters of accepted position papers will be invited to attend the >> workshop. Active participation will be expected. >>=20 >> The workshop will be structured as a series of working sessions >> punctuated by invited speakers who will present relevant background >> information or controversial ideas that help participants reach a = deeper >> understanding of the subject. The organizing committee may ask = submitters >> of particularly salient papers to present their ideas and experiences = at >> the workshop. For each slot, there will be one or two invited >> controversial speakers, and group work on the problem that=82s = identified, >> hopefully reaching either a deeper understanding of the problem or = some >> means of approaching it. >>=20 >> - Important Dates >>=20 >> Position papers must be submitted at latest February, 11th, 2011. = Note: >> An early submission allows us to provide you feedback! >>=20 >> Submitted position papers will be reviewed immediately by the program >> organizers and an invitation to the workshop will be sent to one of = the >> paper authors. At the latest, invitations will be distributed by = February, >> 25th. >>=20 >> This one-day workshop will take place on Friday, 25th March, 2011, = right >> before the 80th IETF meeting in Prague, which starts on Sunday, 27th >> March. Independent of this workshop but relevant for the = participants, are >> tutorial events on Saturday, 26th March 2011. These tutorials will = focus >> on ongoing IETF efforts related to the IETF CoRE, ROLL, and 6LoWPAN >> working groups. More details can be found at: >>=20 >> - Position Paper Requirements >>=20 >> Interested parties must submit a brief contribution describing their = work >> or approach, as it relates to the workshop theme. We welcome = visionary >> ideas for how to tackle the integration of constrained devices, as = well as >> write-ups of deployment experience, and lessons-learned from = successful or >> failed attempts at integrating these constrained devices with the >> Internet. Contributions are not required to be original in content. >>=20 >> We solicit brief write-ups with 1 to 3 pages, formatted in HTML, PDF, = or >> plain text (for example as a submitted Internet Draft). We encourage = paper >> authors to limit themselves on the most important challenge. A = focused >> message will be key! Accepted position papers will be published (in >> addition to meeting minutes, slides, and a workshop report). >>=20 >> Please send your position paper to iot-workshop-prep@lists.i1b.org. >>=20 >> - Venue >>=20 >> The planned date and location for the workshop is Friday, March 25th, = in >> Prague. Details about the meeting venue will be provided to the = invited >> workshop participants. During the breaks coffee and tea will be = served. >>=20 >> There are no plans for remote participation. Minutes of discussions = will >> be available, and offers to organize audio recording would be gladly >> appreciated. >>=20 >> - Workshop Organizers >>=20 >> We look forward to your input. The workshop organizers are Jari Arkko >> (Internet Area Director), Hannes Tschofenig (IAB), Bernard Aboba = (IAB), >> Carsten Bormann (CoRE and 6LoWPAN WG Chair), David Culler (ROLL WG = Chair), >> Lars Eggert (Transport Area Director, and upcoming IRTF Chair), JP = Vasseur >> (ROLL WG Chair), Stewart Bryant (Routing Area Director), Adrian = Farrel >> (Routing Area Director), Ralph Droms (Internet Area Director), = Geoffrey >> Mulligan (6LoWPAN WG Chair), Alexey Melnikov (Applications Area = Director), >> Peter Saint-Andre (Applications Area Director), Marcelo Bagnulo = (IAB), >> Zach Shelby (Smart Power Directorate), Isidro Ballesteros Laso = (European >> Commission), Fred Baker (Member of the Smart Power Directorate and = liaison >> to the US Smart Grid Interoperability Panel - SGIP). >>=20 >> Up-to-date information about the workshop is available at: >> http://www.iab.org/about/workshops/smartobjects/ >>=20 >> Feel free to contact us at iot-workshop-prep@lists.i1b.org. >> _______________________________________________ >> IETF-Announce mailing list >> IETF-Announce@ietf.org >> https://www.ietf.org/mailman/listinfo/ietf-announce >=20 > _______________________________________________ > Ietf mailing list > Ietf@ietf.org > https://www.ietf.org/mailman/listinfo/ietf From zach@sensinode.com Wed Jan 12 01:26:26 2011 Return-Path: X-Original-To: core@core3.amsl.com Delivered-To: core@core3.amsl.com Received: from localhost (localhost [127.0.0.1]) by core3.amsl.com (Postfix) with ESMTP id 929CF28C0FE for ; Wed, 12 Jan 2011 01:26:26 -0800 (PST) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -3.015 X-Spam-Level: X-Spam-Status: No, score=-3.015 tagged_above=-999 required=5 tests=[AWL=-0.416, BAYES_00=-2.599] Received: from mail.ietf.org ([64.170.98.32]) by localhost (core3.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id vYCM8fUOmCSd for ; Wed, 12 Jan 2011 01:26:25 -0800 (PST) Received: from auth-smtp.nebula.fi (auth-smtp.nebula.fi [217.30.180.105]) by core3.amsl.com (Postfix) with ESMTP id E875328C0D8 for ; Wed, 12 Jan 2011 01:26:24 -0800 (PST) Received: from [62.145.172.52] ([62.145.172.52]) (authenticated bits=0) by auth-smtp.nebula.fi (8.13.4/8.13.4) with ESMTP id p0C9SeKi024445 (version=TLSv1/SSLv3 cipher=AES128-SHA bits=128 verify=NO) for ; Wed, 12 Jan 2011 11:28:40 +0200 From: Zach Shelby Content-Type: multipart/signed; boundary=Apple-Mail-762-837226095; protocol="application/pkcs7-signature"; micalg=sha1 Date: Wed, 12 Jan 2011 11:28:42 +0200 Message-Id: <00D33122-9E66-46C4-AAA0-FF4EB7A41FFD@sensinode.com> To: core WG Mime-Version: 1.0 (Apple Message framework v1082) X-Mailer: Apple Mail (2.1082) Subject: [core] coap-04 release update X-BeenThere: core@ietf.org X-Mailman-Version: 2.1.9 Precedence: list List-Id: "Constrained RESTful Environments \(CoRE\) Working Group list" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 12 Jan 2011 09:26:26 -0000 --Apple-Mail-762-837226095 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset=us-ascii I wanted to give the WG a status update on the coap-04 document release. = Since the new year we have been working hard on coap-04, and have = managed to close the majority of the tickets. This week we are = completing the final improvements to the security sections and general = editing. The IETF track tools seem to be broken, so our ticket changes = aren't being sent to the core list. However you can follow the progress = here: = http://trac.tools.ietf.org/wg/core/trac/query?status=3Dnew&status=3Dassign= ed&status=3Dreopened&component=3Dcoap We are planning to submit coap-04 by this weekend. After that we'll = proceed with the -observe and -block document updates.=20 Regards and happy new year, Zach --=20 Zach Shelby, Chief Nerd, Sensinode Ltd. http://zachshelby.org - My blog "On the Internet of Things" http://6lowpan.net - My book "6LoWPAN: The Wireless Embedded Internet" Mobile: +358 40 7796297 --Apple-Mail-762-837226095 Content-Disposition: attachment; filename=smime.p7s Content-Type: application/pkcs7-signature; name=smime.p7s Content-Transfer-Encoding: base64 MIAGCSqGSIb3DQEHAqCAMIACAQExCzAJBgUrDgMCGgUAMIAGCSqGSIb3DQEHAQAAoIIKGzCCBMww ggQ1oAMCAQICEByunWua9OYvIoqj2nRhbB4wDQYJKoZIhvcNAQEFBQAwXzELMAkGA1UEBhMCVVMx FzAVBgNVBAoTDlZlcmlTaWduLCBJbmMuMTcwNQYDVQQLEy5DbGFzcyAxIFB1YmxpYyBQcmltYXJ5 IENlcnRpZmljYXRpb24gQXV0aG9yaXR5MB4XDTA1MTAyODAwMDAwMFoXDTE1MTAyNzIzNTk1OVow gd0xCzAJBgNVBAYTAlVTMRcwFQYDVQQKEw5WZXJpU2lnbiwgSW5jLjEfMB0GA1UECxMWVmVyaVNp Z24gVHJ1c3QgTmV0d29yazE7MDkGA1UECxMyVGVybXMgb2YgdXNlIGF0IGh0dHBzOi8vd3d3LnZl 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X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -102.586 X-Spam-Level: X-Spam-Status: No, score=-102.586 tagged_above=-999 required=5 tests=[AWL=0.014, BAYES_00=-2.599, NO_RELAYS=-0.001, USER_IN_WHITELIST=-100] Received: from mail.ietf.org ([64.170.98.32]) by localhost (core3.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id Mt6DMm8ioI1F for ; Wed, 12 Jan 2011 07:20:50 -0800 (PST) Received: from zinfandel.tools.ietf.org (unknown [IPv6:2001:1890:1112:1::2a]) by core3.amsl.com (Postfix) with ESMTP id F2EB33A69C6 for ; Wed, 12 Jan 2011 07:20:49 -0800 (PST) Received: from localhost ([::1] helo=zinfandel.tools.ietf.org) by zinfandel.tools.ietf.org with esmtp (Exim 4.72) (envelope-from ) id 1Pd2XV-0001mK-7N; Wed, 12 Jan 2011 07:23:09 -0800 MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 8bit From: "core issue tracker" X-Trac-Version: 0.11.7 Precedence: bulk Auto-Submitted: auto-generated X-Mailer: Trac 0.11.7, by Edgewall Software To: hartke@tzi.org X-Trac-Project: core Date: Wed, 12 Jan 2011 15:23:09 -0000 X-URL: http://tools.ietf.org/core/ X-Trac-Ticket-URL: http://trac.tools.ietf.org/wg/core/trac/ticket/78#comment:2 Message-ID: <062.302023c5f973c34006466202c6c7c7a6@tools.ietf.org> References: <053.2a7e2622a76fb227d41b3b95d0d18a8d@tools.ietf.org> X-Trac-Ticket-ID: 78 In-Reply-To: <053.2a7e2622a76fb227d41b3b95d0d18a8d@tools.ietf.org> X-SA-Exim-Connect-IP: ::1 X-SA-Exim-Rcpt-To: hartke@tzi.org, core@ietf.org X-SA-Exim-Mail-From: trac@tools.ietf.org X-SA-Exim-Scanned: No (on zinfandel.tools.ietf.org); SAEximRunCond expanded to false Cc: core@ietf.org Subject: Re: [core] coap #78 (closed): Caching semantics X-BeenThere: core@ietf.org X-Mailman-Version: 2.1.9 List-Id: "Constrained RESTful Environments \(CoRE\) Working Group list" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 12 Jan 2011 15:20:51 -0000 #78: Caching semantics Changes (by hartke@…): * status: new => closed * resolution: => fixed Comment: Done in coap-04. -- ----------------------------+----------------------------------------------- Reporter: hartke@… | Owner: hartke@… Type: enhancement | Status: closed Priority: major | Milestone: Component: coap | Version: Severity: - | Resolution: fixed Keywords: | ----------------------------+----------------------------------------------- Ticket URL: core From fluffy@cisco.com Wed Jan 12 07:38:13 2011 Return-Path: X-Original-To: core@core3.amsl.com Delivered-To: core@core3.amsl.com Received: from localhost (localhost [127.0.0.1]) by core3.amsl.com (Postfix) with ESMTP id 164103A6B33 for ; Wed, 12 Jan 2011 07:38:13 -0800 (PST) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -110.587 X-Spam-Level: X-Spam-Status: No, score=-110.587 tagged_above=-999 required=5 tests=[AWL=0.012, BAYES_00=-2.599, RCVD_IN_DNSWL_HI=-8, USER_IN_WHITELIST=-100] Received: from mail.ietf.org ([64.170.98.32]) by localhost (core3.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id m+x4z2m1HP+m for ; Wed, 12 Jan 2011 07:38:12 -0800 (PST) Received: from sj-iport-6.cisco.com (sj-iport-6.cisco.com [171.71.176.117]) by core3.amsl.com (Postfix) with ESMTP id 65E003A69A0 for ; Wed, 12 Jan 2011 07:38:12 -0800 (PST) Authentication-Results: sj-iport-6.cisco.com; dkim=neutral (message not signed) header.i=none X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: AvsEAJZaLU2rR7Hu/2dsb2JhbACkP3OjXZhRhUwEhGiGKIMg Received: from sj-core-5.cisco.com ([171.71.177.238]) by sj-iport-6.cisco.com with ESMTP; 12 Jan 2011 15:40:32 +0000 Received: from [192.168.4.2] (rcdn-fluffy-8711.cisco.com [10.99.9.18]) by sj-core-5.cisco.com (8.13.8/8.14.3) with ESMTP id p0CFeVwF009786; Wed, 12 Jan 2011 15:40:31 GMT From: Cullen Jennings Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: quoted-printable Date: Wed, 12 Jan 2011 08:42:06 -0700 Message-Id: <91473B88-3BDF-404D-947C-A717A3399243@cisco.com> To: core WG Mime-Version: 1.0 (Apple Message framework v1082) X-Mailer: Apple Mail (2.1082) Subject: [core] WGLC for draft-ietf-core-link-format-02 X-BeenThere: core@ietf.org X-Mailman-Version: 2.1.9 Precedence: list List-Id: "Constrained RESTful Environments \(CoRE\) Working Group list" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 12 Jan 2011 15:38:13 -0000 I would like to start the working group last call for = draft-ietf-core-link-format-02. Please review the draft and send = comments to list by the end of the day Jan 26. If you review the draft = and have no comments, send an email to the list or to the chairs so we = have an idea of how much review the draft received.=20 The draft is at = http://tools.ietf.org/html/draft-ietf-core-link-format-02 Thank you, Cullen & Carsten From trac@tools.ietf.org Thu Jan 13 16:55:58 2011 Return-Path: X-Original-To: core@core3.amsl.com Delivered-To: core@core3.amsl.com Received: from localhost (localhost [127.0.0.1]) by core3.amsl.com (Postfix) with ESMTP id E455D28C0EE for ; Thu, 13 Jan 2011 16:55:58 -0800 (PST) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -102.586 X-Spam-Level: X-Spam-Status: No, score=-102.586 tagged_above=-999 required=5 tests=[AWL=0.014, BAYES_00=-2.599, NO_RELAYS=-0.001, USER_IN_WHITELIST=-100] Received: from mail.ietf.org ([64.170.98.32]) by localhost (core3.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id ILj1WB8KIuA3 for ; Thu, 13 Jan 2011 16:55:58 -0800 (PST) Received: from zinfandel.tools.ietf.org (unknown [IPv6:2001:1890:1112:1::2a]) by core3.amsl.com (Postfix) with ESMTP id 081F528B23E for ; Thu, 13 Jan 2011 16:55:58 -0800 (PST) Received: from localhost ([::1] helo=zinfandel.tools.ietf.org) by zinfandel.tools.ietf.org with esmtp (Exim 4.72) (envelope-from ) id 1PdXze-0006uV-Un; Thu, 13 Jan 2011 16:58:18 -0800 MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 8bit From: "core issue tracker" X-Trac-Version: 0.11.7 Precedence: bulk Auto-Submitted: auto-generated X-Mailer: Trac 0.11.7, by Edgewall Software To: cabo@tzi.org, zach@sensinode.com X-Trac-Project: core Date: Fri, 14 Jan 2011 00:58:18 -0000 X-URL: http://tools.ietf.org/core/ X-Trac-Ticket-URL: http://trac.tools.ietf.org/wg/core/trac/ticket/56#comment:3 Message-ID: <066.2066b55195051588e04b5ed3f90efc9c@tools.ietf.org> References: <057.86ca4d29ed54c1be14e57fe22ff95263@tools.ietf.org> X-Trac-Ticket-ID: 56 In-Reply-To: <057.86ca4d29ed54c1be14e57fe22ff95263@tools.ietf.org> X-SA-Exim-Connect-IP: ::1 X-SA-Exim-Rcpt-To: cabo@tzi.org, zach@sensinode.com, core@ietf.org X-SA-Exim-Mail-From: trac@tools.ietf.org X-SA-Exim-Scanned: No (on zinfandel.tools.ietf.org); SAEximRunCond expanded to false Cc: core@ietf.org Subject: Re: [core] coap #56 (closed): Distinguishing DTLS, CoAP and STUN X-BeenThere: core@ietf.org X-Mailman-Version: 2.1.9 List-Id: "Constrained RESTful Environments \(CoRE\) Working Group list" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 14 Jan 2011 00:55:59 -0000 #56: Distinguishing DTLS, CoAP and STUN Changes (by cabo@…): * status: new => closed * resolution: => fixed Comment: Added new subsection to discussion of port numbers. Note that we try to reserve values of TLS ContentType. Let's see how that fares... -- --------------------------------+------------------------------------------- Reporter: zach@… | Owner: cabo@… Type: enhancement | Status: closed Priority: trivial | Milestone: Component: coap | Version: Severity: - | Resolution: fixed Keywords: | --------------------------------+------------------------------------------- Ticket URL: core From ngocthanhdinh@gmail.com Thu Jan 13 21:33:53 2011 Return-Path: X-Original-To: core@core3.amsl.com Delivered-To: core@core3.amsl.com Received: from localhost (localhost [127.0.0.1]) by core3.amsl.com (Postfix) with ESMTP id 7C9AA3A68BB for ; Thu, 13 Jan 2011 21:33:53 -0800 (PST) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -1.798 X-Spam-Level: X-Spam-Status: No, score=-1.798 tagged_above=-999 required=5 tests=[AWL=-0.289, BAYES_05=-1.11, HTML_MESSAGE=0.001, J_CHICKENPOX_56=0.6, RCVD_IN_DNSWL_LOW=-1] Received: from mail.ietf.org ([64.170.98.32]) by localhost (core3.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id h+b41TAb0v8V for ; Thu, 13 Jan 2011 21:33:49 -0800 (PST) Received: from mail-fx0-f44.google.com (mail-fx0-f44.google.com [209.85.161.44]) by core3.amsl.com (Postfix) with ESMTP id 1BD2D3A68A9 for ; Thu, 13 Jan 2011 21:33:48 -0800 (PST) Received: by fxm9 with SMTP id 9so2657854fxm.31 for ; Thu, 13 Jan 2011 21:36:13 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma; h=domainkey-signature:mime-version:date:message-id:subject:from:to :content-type; bh=K7Y0AzC9EMZTV8+lodAj0/55dkwa1dm/LKEEjZQ3/kw=; b=UcAXOQnTZyGs1sga7G2h9RoMJHesEbISEiTZ1FXsVBcRjYuh3EUFnigm4cjBW7THHi CgDKUKig9Gqt+6AMvdV0YSM6fTJzrP2BAb1rdCiksdw5mDOtpieqDq5GAQs/qSaXkK9J R9qLXpJC/rCqpXJdBjSx5RA4N+lJjBdY/Oy1E= DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=mime-version:date:message-id:subject:from:to:content-type; b=AAfioeCve2scLj6+vKc6aGmFvvD2YkITLkNFqRZ7BiINwrWQ4eBVH8iV8rOObSBkNx 2pqPS4GYgbd/at6V60lTKexz+pwbmtqbQEW2aVCpZSeHprRrwJG4VxHBvkhtRQR9iuaZ wldBiaPaWSqEj6DNP4ZQ7rlycfOp5uY28hRO8= MIME-Version: 1.0 Received: by 10.103.246.3 with SMTP id y3mr8233mur.71.1294983372850; Thu, 13 Jan 2011 21:36:12 -0800 (PST) Received: by 10.102.23.2 with HTTP; Thu, 13 Jan 2011 21:36:12 -0800 (PST) Date: Fri, 14 Jan 2011 14:36:12 +0900 Message-ID: From: Thanh Ngoc To: contiki-developers@lists.sourceforge.net, core@ietf.org Content-Type: multipart/alternative; boundary=0016369cff59edc6730499c7cfb4 Subject: [core] Error running restful server - coap example on real mote. help me! X-BeenThere: core@ietf.org X-Mailman-Version: 2.1.9 Precedence: list List-Id: "Constrained RESTful Environments \(CoRE\) Working Group list" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 14 Jan 2011 05:33:53 -0000 --0016369cff59edc6730499c7cfb4 Content-Type: text/plain; charset=ISO-8859-1 Hello Every one, I try to run restful server- coap example in real mote. but it can not query by using coap://... when i run resr-server-example with COOJA. it is successful for access from coap client , firefox browser with coap plugin. coap://[aaaa::0212:7402:0002:0202]:61616/light --> i can access resources : light, well-know, led.... but when *i deploy in real mote.* i set up the same as guides in file : readme.txt. I use mote : telosb and run contiki on Linux 1.* i installed one node as border router, and connect router successful:* " ********SLIP started on ``/dev/ttyUSB0'' opened tun device ``/dev/tun0'' ifconfig tun0 inet `hostname` up ifconfig tun0 add aaaa::1/64 ifconfig tun0 tun0 Link encap:UNSPEC HWaddr 00-00-00-00-00-00-00-00-00-00-00-00-00-00-00-00 inet addr:127.0.1.1 P-t-P:127.0.1.1 Mask:255.255.255.255 inet6 addr: aaaa::1/64 Scope:Global UP POINTOPOINT RUNNING NOARP MULTICAST MTU:1500 Metric:1 RX packets:0 errors:0 dropped:0 overruns:0 frame:0 TX packets:0 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:500 RX bytes:0 (0.0 B) TX bytes:0 (0.0 B) *** Address:aaaa::1 => aaaa:0000:0000:0000 SIN: 10 Got configuration message of type P Setting prefix aaaa:: created a new RPL dag Server IPv6 addresses: *aaaa::212:7400:10d0:42e8 fe80::212:7400:10d0:42e8* SIN: 70 slip-bridge: Destination off-link but no route .... " 2. i connected node with rest-server application deploy and connect successful. when i reset mote print: " Rime started with address *0.18.116.0.16.197.67.156* MAC 00:12:74:00:10:c5:43:9c Contiki 2.5 started. Node id is not set. CSMA ContikiMAC, channel check rate 8 Hz, radio channel 26 Tentative link-local IPv6 address *fe80:0000:0000:0000:0212:7400:10c5:439c* Starting 'Rest Server Example' COAP Server " and i connect mote successul " user@instant-contiki:~/contiki-2.x/examples/rest-example$ make login TARGET=sky MOTE=2 ../../tools/sky/serialdump-linux -b115200 /dev/ttyUSB1 connecting to /dev/ttyUSB1 (115200) [OK] " . but i can not ping6 to mote address as it showed when i reset mote. *ping6 0.18.116.0.16.197.67.156 --> failed ping6 fe80:0000:0000:0000:0212:7400:10c5:439c --> failed.* i could ping only the address print when connect border router is: ping6 aaaa::212:7400:10d0:42e8 --> ok. i try to run coap with some addresses above but it print: Server not responding. *coap://[aaaa::0212:7402:0002:0202]:61616/light --> Server not responding. do you know what was i wrong? and help me how can i test coap on real mote? thank you very much, Ngoc Thanh * --0016369cff59edc6730499c7cfb4 Content-Type: text/html; charset=ISO-8859-1 Content-Transfer-Encoding: quoted-printable Hello Every one,

I try to run restful server- coap example in real m= ote. but it can not query by using coap://...

when i run resr-server= -example with COOJA. it is successful for access from coap client , firefox= browser with coap plugin.
coap://[aaaa::0212:7402:0002:0202]:61616/light
--> i can access resou= rces : light, well-know, led....

but when i deploy in real mote.<= /b>
i set up the same as guides in file : readme.txt.

I use mote = : telosb and run contiki on Linux
1. i installed one node as border router, and connect router successful:=
"
********SLIP started on ``/dev/ttyUSB0''
opene= d tun device ``/dev/tun0''
ifconfig tun0 inet `hostname` up
ifconfig tun0 add aaaa::1/64
ifconfig tun0

tun0=A0=A0=A0=A0=A0 Li= nk encap:UNSPEC=A0 HWaddr 00-00-00-00-00-00-00-00-00-00-00-00-00-00-00-00= =A0
=A0=A0=A0=A0=A0=A0=A0=A0=A0 inet addr:127.0.1.1=A0 P-t-P:127.0.1.1= =A0 Mask:255.255.255.255
=A0=A0=A0=A0=A0=A0=A0=A0=A0 inet6 addr: aaaa::1= /64 Scope:Global
=A0=A0=A0=A0=A0=A0=A0=A0=A0 UP POINTOPOINT RUNNING NOARP MULTICAST=A0 MTU:1= 500=A0 Metric:1
=A0=A0=A0=A0=A0=A0=A0=A0=A0 RX packets:0 errors:0 droppe= d:0 overruns:0 frame:0
=A0=A0=A0=A0=A0=A0=A0=A0=A0 TX packets:0 errors:0= dropped:0 overruns:0 carrier:0
=A0=A0=A0=A0=A0=A0=A0=A0=A0 collisions:0= txqueuelen:500
=A0=A0=A0=A0=A0=A0=A0=A0=A0 RX bytes:0 (0.0 B)=A0 TX bytes:0 (0.0 B)
*** Address:aaaa::1 =3D> aaaa:0000:0000:0000
SIN: 10
Got configur= ation message of type P
Setting prefix aaaa::
created a new RPL dagServer IPv6 addresses:
=A0 aaaa::212:7400:10d0:42e8
=A0 fe80::212:7400:10d0:42e8
SIN:= 70
slip-bridge: Destination off-link but no route
....
"
=
2. i connected node with rest-server application deploy and connect suc= cessful.
when i reset mote print:

"
Rime started with address 0.1= 8.116.0.16.197.67.156
MAC 00:12:74:00:10:c5:43:9c Contiki 2.5 starte= d. Node id is not set.
CSMA ContikiMAC, channel check rate 8 Hz, radio c= hannel 26
Tentative link-local IPv6 address fe80:0000:0000:0000:0212:7400:10c5:439= c
Starting 'Rest Server Example'
COAP Server

"= ;
and i connect mote successul

"
user@instant-contiki:~/c= ontiki-2.x/examples/rest-example$ make login TARGET=3Dsky MOTE=3D2
../../tools/sky/serialdump-linux -b115200 /dev/ttyUSB1
connecting to /de= v/ttyUSB1 (115200) [OK]
"

. but i can not ping6 to mote addr= ess as it showed when i reset mote.
ping6 0.18.116.0.16.197.67.156 --= > failed
ping6 fe80:0000:0000:0000:0212:7400:10c5:439c --> failed.

i c= ould ping only the address print when connect border router is: ping6 aaaa= ::212:7400:10d0:42e8 --> ok.

i try to run coap with some addresse= s above but it print: Server not responding.
coap://[aaaa::0212:7402:0002:0202]:61616/light --> Server not respond= ing.


do you know what was i wrong?
and help me how can i test= coap on real mote?


thank you very much,

Ngoc Thanh
 --0016369cff59edc6730499c7cfb4-- From doganyazar@yahoo.com Fri Jan 14 00:11:08 2011 Return-Path: X-Original-To: core@core3.amsl.com Delivered-To: core@core3.amsl.com Received: from localhost (localhost [127.0.0.1]) by core3.amsl.com (Postfix) with ESMTP id 98A143A6C46 for ; Fri, 14 Jan 2011 00:11:08 -0800 (PST) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -1.998 X-Spam-Level: X-Spam-Status: No, score=-1.998 tagged_above=-999 required=5 tests=[BAYES_00=-2.599, HTML_MESSAGE=0.001, J_CHICKENPOX_56=0.6] Received: from mail.ietf.org ([64.170.98.32]) by localhost (core3.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id YxpwOw7jx6nv for ; Fri, 14 Jan 2011 00:11:07 -0800 (PST) Received: from nm17-vm0.bullet.mail.ac4.yahoo.com (nm17-vm0.bullet.mail.ac4.yahoo.com [98.139.53.208]) by core3.amsl.com (Postfix) with SMTP id 0C77F3A6C4E for ; Fri, 14 Jan 2011 00:11:06 -0800 (PST) Received: from [98.139.52.194] by nm17.bullet.mail.ac4.yahoo.com with NNFMP; 14 Jan 2011 08:13:29 -0000 Received: from [98.139.52.170] by tm7.bullet.mail.ac4.yahoo.com with NNFMP; 14 Jan 2011 08:13:29 -0000 Received: from [127.0.0.1] by omp1053.mail.ac4.yahoo.com with NNFMP; 14 Jan 2011 08:13:29 -0000 X-Yahoo-Newman-Property: ymail-3 X-Yahoo-Newman-Id: 93159.7013.bm@omp1053.mail.ac4.yahoo.com Received: (qmail 72139 invoked by uid 60001); 14 Jan 2011 08:13:28 -0000 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=yahoo.com; s=s1024; t=1294992808; bh=FVcZzGnSzOujdp6a0LBPSaoU1LojBzGHD9eVoveQuvo=; h=Message-ID:X-YMail-OSG:Received:X-Mailer:References:Date:From:Subject:To:In-Reply-To:MIME-Version:Content-Type; b=wwdN8mUUaZfSp6W/a1NPHEjoKsOcKQS/l4U06AFGTYK+cdoWlsM2IA+Cmwa2MXWn2ux6uwfbJypf7X+o5apwN0sy7oAiMeWRlDAaDO6LHO8k0JzHZ38OAZe3wEbUR6pCEZ2Fc1BdmuvXSf/4N9pajWuABHC+YCnQaVKt3IwHg6A= DomainKey-Signature: a=rsa-sha1; q=dns; c=nofws; s=s1024; d=yahoo.com; h=Message-ID:X-YMail-OSG:Received:X-Mailer:References:Date:From:Subject:To:In-Reply-To:MIME-Version:Content-Type; b=kOlBCVapx2Wx+uZtBG+R7YS9QNntLbwFhCo27aY9spfbIbIk7SejWYYcfjZKwi+m8ZiBSWEox940RFDU4wDe2cuN3xFfrwjCmG9gO7vCmOF2qtI441fbEKa+1xIlU+zl7IxxfUcyQjWql/SuZyHCgEPlzQ36ALvoZ484urYsw88=; Message-ID: <639056.70654.qm@web130207.mail.mud.yahoo.com> X-YMail-OSG: NBwYlEoVM1mDjdxhozHPKJUOOC_J0HGA.9EGUHxXihD4Fyh DAGcGXqq5_XxU2.hoTF3D6oLkpOYm8FIn8hxjODCJ_IYhYf4M7GIUqaCrzil 8SaiWTz97Yyf2tPgAedyB1dKsuW7orMceM929mMGDpPw.Y5Y3fxCtZLccRNT dNC0nlrJkk4YKBsvpvwUtGsa90blUjZJI2E_cXjAOtzKvZEG5kfalsEeoofb ZxfWAdaHJOVEd7m3SLjavOVRPDTk49fA4GYgRvi1L.I7PdLiqH2ciWoa1MK0 wrnsWIoSlkr3YdtqEcMs8fffS6c1AdGnoKVfS4gSBxD5qy8450EjSLqLmNN5 FnO7vA_hbbzP7z87ALY60zzQSQwKIInOsGtj2TPAPaCJHO4_j4PFjtoNlDZ0 vjfjuvfq.lyi8 Received: from [194.237.142.20] by web130207.mail.mud.yahoo.com via HTTP; Fri, 14 Jan 2011 00:13:28 PST X-Mailer: YahooMailRC/555 YahooMailWebService/0.8.107.285259 References: Date: Fri, 14 Jan 2011 00:13:28 -0800 (PST) From: dogan yazar To: Contiki developer mailing list , core@ietf.org In-Reply-To: MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="0-1930624088-1294992808=:70654" Subject: Re: [core] [Contiki-developers] Error running restful server - coap example on real mote. help me! X-BeenThere: core@ietf.org X-Mailman-Version: 2.1.9 Precedence: list List-Id: "Constrained RESTful Environments \(CoRE\) Working Group list" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 14 Jan 2011 08:11:08 -0000 --0-1930624088-1294992808=:70654 Content-Type: text/plain; charset=us-ascii Hello, 0.18.116.0.16.197.67.156 is NOT an IP address (it is RIME address) so it is normal that pinging it fails! Try this one instead (which accesses a link local address via tun0 interface) ping6 fe80:0000:0000:0000:0212:7400:10c5:439c%tun0 And from the client, try this one first coap://[aaaa::0000:0000:0000:0212:7400:10c5:439c]:61616/light If it does not work, you should again access the link local address via the tun0 interface. ________________________________ From: Thanh Ngoc To: contiki-developers@lists.sourceforge.net; core@ietf.org Sent: Fri, January 14, 2011 6:36:12 AM Subject: [Contiki-developers] Error running restful server - coap example on real mote. help me! Hello Every one, I try to run restful server- coap example in real mote. but it can not query by using coap://... when i run resr-server-example with COOJA. it is successful for access from coap client , firefox browser with coap plugin. coap://[aaaa::0212:7402:0002:0202]:61616/light --> i can access resources : light, well-know, led.... but when i deploy in real mote. i set up the same as guides in file : readme.txt. I use mote : telosb and run contiki on Linux 1.i installed one node as border router, and connect router successful: " ********SLIP started on ``/dev/ttyUSB0'' opened tun device ``/dev/tun0'' ifconfig tun0 inet `hostname` up ifconfig tun0 add aaaa::1/64 ifconfig tun0 tun0 Link encap:UNSPEC HWaddr 00-00-00-00-00-00-00-00-00-00-00-00-00-00-00-00 inet addr:127.0.1.1 P-t-P:127.0.1.1 Mask:255.255.255.255 inet6 addr: aaaa::1/64 Scope:Global UP POINTOPOINT RUNNING NOARP MULTICAST MTU:1500 Metric:1 RX packets:0 errors:0 dropped:0 overruns:0 frame:0 TX packets:0 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:500 RX bytes:0 (0.0 B) TX bytes:0 (0.0 B) *** Address:aaaa::1 => aaaa:0000:0000:0000 SIN: 10 Got configuration message of type P Setting prefix aaaa:: created a new RPL dag Server IPv6 addresses: aaaa::212:7400:10d0:42e8 fe80::212:7400:10d0:42e8 SIN: 70 slip-bridge: Destination off-link but no route .... " 2. i connected node with rest-server application deploy and connect successful. when i reset mote print: " Rime started with address 0.18.116.0.16.197.67.156 MAC 00:12:74:00:10:c5:43:9c Contiki 2.5 started. Node id is not set. CSMA ContikiMAC, channel check rate 8 Hz, radio channel 26 Tentative link-local IPv6 address fe80:0000:0000:0000:0212:7400:10c5:439c Starting 'Rest Server Example' COAP Server " and i connect mote successul " user@instant-contiki:~/contiki-2.x/examples/rest-example$ make login TARGET=sky MOTE=2 ../../tools/sky/serialdump-linux -b115200 /dev/ttyUSB1 connecting to /dev/ttyUSB1 (115200) [OK] " . but i can not ping6 to mote address as it showed when i reset mote. ping6 0.18.116.0.16.197.67.156 --> failed ping6 fe80:0000:0000:0000:0212:7400:10c5:439c --> failed. i could ping only the address print when connect border router is: ping6 aaaa::212:7400:10d0:42e8 --> ok. i try to run coap with some addresses above but it print: Server not responding. coap://[aaaa::0212:7402:0002:0202]:61616/light --> Server not responding. do you know what was i wrong? and help me how can i test coap on real mote? thank you very much, Ngoc Thanh --0-1930624088-1294992808=:70654 Content-Type: text/html; charset=us-ascii
Hello,

0.18.116.0.16.197.67.156 is NOT an IP address (it is RIME address) so it is normal that pinging it fails!

Try this one instead (which accesses a link local address via tun0 interface)
ping6 fe80:0000:0000:0000:0212:7400:10c5:439c%tun0

And from the client, try this one first
coap://[aaaa::0000:0000:0000:0212:7400:10c5:439c]:61616/light

If it does not work, you should again access the link local address via the tun0 interface.


From: Thanh Ngoc <ngocthanhdinh@gmail.com>
To: contiki-developers@lists.sourceforge.net; core@ietf.org
Sent: Fri, January 14, 2011 6:36:12 AM
Subject: [Contiki-developers] Error running restful server - coap example on real mote. help me!

Hello Every one,

I try to run restful server- coap example in real mote. but it can not query by using coap://...

when i run resr-server-example with COOJA. it is successful for access from coap client , firefox browser with coap plugin.
coap://[aaaa::0212:7402:0002:0202]:61616/light
--> i can access resources : light, well-know, led....

but when i deploy in real mote.
i set up the same as guides in file : readme.txt.

I use mote : telosb and run contiki on Linux
1. i installed one node as border router, and connect router successful:
"
********SLIP started on ``/dev/ttyUSB0''
opened tun device ``/dev/tun0''
ifconfig tun0 inet `hostname` up
ifconfig tun0 add aaaa::1/64
ifconfig tun0

tun0      Link encap:UNSPEC  HWaddr 00-00-00-00-00-00-00-00-00-00-00-00-00-00-00-00 
          inet addr:127.0.1.1  P-t-P:127.0.1.1  Mask:255.255.255.255
          inet6 addr: aaaa::1/64 Scope:Global
          UP POINTOPOINT RUNNING NOARP MULTICAST  MTU:1500  Metric:1
          RX packets:0 errors:0 dropped:0 overruns:0 frame:0
          TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:500
          RX bytes:0 (0.0 B)  TX bytes:0 (0.0 B)

*** Address:aaaa::1 => aaaa:0000:0000:0000
SIN: 10
Got configuration message of type P
Setting prefix aaaa::
created a new RPL dag
Server IPv6 addresses:
  aaaa::212:7400:10d0:42e8
  fe80::212:7400:10d0:42e8
SIN: 70
slip-bridge: Destination off-link but no route
....
"

2. i connected node with rest-server application deploy and connect successful.
when i reset mote print:

"
Rime started with address 0.18.116.0.16.197.67.156
MAC 00:12:74:00:10:c5:43:9c Contiki 2.5 started. Node id is not set.
CSMA ContikiMAC, channel check rate 8 Hz, radio channel 26
Tentative link-local IPv6 address fe80:0000:0000:0000:0212:7400:10c5:439c
Starting 'Rest Server Example'
COAP Server

"
and i connect mote successul

"
user@instant-contiki:~/contiki-2.x/examples/rest-example$ make login TARGET=sky MOTE=2
../../tools/sky/serialdump-linux -b115200 /dev/ttyUSB1
connecting to /dev/ttyUSB1 (115200) [OK]
"

. but i can not ping6 to mote address as it showed when i reset mote.
ping6 0.18.116.0.16.197.67.156 --> failed
ping6 fe80:0000:0000:0000:0212:7400:10c5:439c --> failed.

i could ping only the address print when connect border router is: ping6 aaaa::212:7400:10d0:42e8 --> ok.

i try to run coap with some addresses above but it print: Server not responding.
coap://[aaaa::0212:7402:0002:0202]:61616/light --> Server not responding.


do you know what was i wrong?
and help me how can i test coap on real mote?


thank you very much,

Ngoc Thanh

--0-1930624088-1294992808=:70654-- From trac@tools.ietf.org Sat Jan 15 17:50:51 2011 Return-Path: X-Original-To: core@core3.amsl.com Delivered-To: core@core3.amsl.com Received: from localhost (localhost [127.0.0.1]) by core3.amsl.com (Postfix) with ESMTP id 219983A6C1A for ; Sat, 15 Jan 2011 17:50:51 -0800 (PST) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -102.587 X-Spam-Level: X-Spam-Status: No, score=-102.587 tagged_above=-999 required=5 tests=[AWL=0.013, BAYES_00=-2.599, NO_RELAYS=-0.001, USER_IN_WHITELIST=-100] Received: from mail.ietf.org ([64.170.98.32]) by localhost (core3.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id pGy57knGf8EJ for ; Sat, 15 Jan 2011 17:50:50 -0800 (PST) Received: from zinfandel.tools.ietf.org (unknown [IPv6:2001:1890:1112:1::2a]) by core3.amsl.com (Postfix) with ESMTP id 4CFAA3A6BF6 for ; Sat, 15 Jan 2011 17:50:50 -0800 (PST) Received: from localhost ([::1] helo=zinfandel.tools.ietf.org) by zinfandel.tools.ietf.org with esmtp (Exim 4.72) (envelope-from ) id 1PeHnx-0005bD-LM; Sat, 15 Jan 2011 17:53:17 -0800 MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 8bit From: "core issue tracker" X-Trac-Version: 0.11.7 Precedence: bulk Auto-Submitted: auto-generated X-Mailer: Trac 0.11.7, by Edgewall Software To: cabo@tzi.org, zach@sensinode.com X-Trac-Project: core Date: Sun, 16 Jan 2011 01:53:17 -0000 X-URL: http://tools.ietf.org/core/ X-Trac-Ticket-URL: http://trac.tools.ietf.org/wg/core/trac/ticket/61#comment:2 Message-ID: <066.ede2cea54a1e1175988b23bd2fcf215f@tools.ietf.org> References: <057.e4cc3beda4c24f32f37d2786e56a309d@tools.ietf.org> X-Trac-Ticket-ID: 61 In-Reply-To: <057.e4cc3beda4c24f32f37d2786e56a309d@tools.ietf.org> X-SA-Exim-Connect-IP: ::1 X-SA-Exim-Rcpt-To: cabo@tzi.org, zach@sensinode.com, core@ietf.org X-SA-Exim-Mail-From: trac@tools.ietf.org X-SA-Exim-Scanned: No (on zinfandel.tools.ietf.org); SAEximRunCond expanded to false Cc: core@ietf.org Subject: Re: [core] coap #61 (closed): Cross-protocol attacks X-BeenThere: core@ietf.org X-Mailman-Version: 2.1.9 List-Id: "Constrained RESTful Environments \(CoRE\) Working Group list" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sun, 16 Jan 2011 01:50:51 -0000 #61: Cross-protocol attacks Changes (by cabo@…): * status: new => closed * resolution: => fixed Comment: Added as new section 10.3.4 -- --------------------------------+------------------------------------------- Reporter: zach@… | Owner: cabo@… Type: task | Status: closed Priority: minor | Milestone: Component: coap | Version: Severity: - | Resolution: fixed Keywords: | --------------------------------+------------------------------------------- Ticket URL: core From trac@tools.ietf.org Sat Jan 15 18:55:50 2011 Return-Path: X-Original-To: core@core3.amsl.com Delivered-To: core@core3.amsl.com Received: from localhost (localhost [127.0.0.1]) by core3.amsl.com (Postfix) with ESMTP id D82273A6DA4 for ; Sat, 15 Jan 2011 18:55:50 -0800 (PST) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -102.587 X-Spam-Level: X-Spam-Status: No, score=-102.587 tagged_above=-999 required=5 tests=[AWL=0.013, BAYES_00=-2.599, NO_RELAYS=-0.001, USER_IN_WHITELIST=-100] Received: from mail.ietf.org ([64.170.98.32]) by localhost (core3.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id wfkRgqSbwTnb for ; Sat, 15 Jan 2011 18:55:49 -0800 (PST) Received: from zinfandel.tools.ietf.org (unknown [IPv6:2001:1890:1112:1::2a]) by core3.amsl.com (Postfix) with ESMTP id B15773A6DA1 for ; Sat, 15 Jan 2011 18:55:49 -0800 (PST) Received: from localhost ([::1] helo=zinfandel.tools.ietf.org) by zinfandel.tools.ietf.org with esmtp (Exim 4.72) (envelope-from ) id 1PeIot-0007Ut-QA; Sat, 15 Jan 2011 18:58:19 -0800 MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 8bit From: "core issue tracker" X-Trac-Version: 0.11.7 Precedence: bulk Auto-Submitted: auto-generated X-Mailer: Trac 0.11.7, by Edgewall Software To: cabo@tzi.org, hartke@tzi.org X-Trac-Project: core Date: Sun, 16 Jan 2011 02:58:19 -0000 X-URL: http://tools.ietf.org/core/ X-Trac-Ticket-URL: http://trac.tools.ietf.org/wg/core/trac/ticket/83#comment:2 Message-ID: <062.2e3f107a2ba1542d0e5b24558049fb50@tools.ietf.org> References: <053.b061b9a9e179f3d95df711ee7014ee5b@tools.ietf.org> X-Trac-Ticket-ID: 83 In-Reply-To: <053.b061b9a9e179f3d95df711ee7014ee5b@tools.ietf.org> X-SA-Exim-Connect-IP: ::1 X-SA-Exim-Rcpt-To: cabo@tzi.org, hartke@tzi.org, core@ietf.org X-SA-Exim-Mail-From: trac@tools.ietf.org X-SA-Exim-Scanned: No (on zinfandel.tools.ietf.org); SAEximRunCond expanded to false Cc: core@ietf.org Subject: Re: [core] coap #83 (closed): Critical options in cached states X-BeenThere: core@ietf.org X-Mailman-Version: 2.1.9 List-Id: "Constrained RESTful Environments \(CoRE\) Working Group list" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sun, 16 Jan 2011 02:55:51 -0000 #83: Critical options in cached states Changes (by cabo@…): * status: new => closed * resolution: => fixed Comment: Added a paragraph at the end of 5.7. Note that this solution does not distinguish caching and non-caching proxies; we may want to validate that decision. -- ----------------------------+----------------------------------------------- Reporter: hartke@… | Owner: cabo@… Type: defect | Status: closed Priority: minor | Milestone: Component: coap | Version: Severity: - | Resolution: fixed Keywords: | ----------------------------+----------------------------------------------- Ticket URL: core From trac@tools.ietf.org Sun Jan 16 12:42:05 2011 Return-Path: X-Original-To: core@core3.amsl.com Delivered-To: core@core3.amsl.com Received: from localhost (localhost [127.0.0.1]) by core3.amsl.com (Postfix) with ESMTP id 13AC63A6E15 for ; Sun, 16 Jan 2011 12:42:05 -0800 (PST) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -102.587 X-Spam-Level: X-Spam-Status: No, score=-102.587 tagged_above=-999 required=5 tests=[AWL=0.013, BAYES_00=-2.599, NO_RELAYS=-0.001, USER_IN_WHITELIST=-100] Received: from mail.ietf.org ([64.170.98.32]) by localhost (core3.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id a3ujJ3+rysSZ for ; Sun, 16 Jan 2011 12:42:04 -0800 (PST) Received: from zinfandel.tools.ietf.org (unknown [IPv6:2001:1890:1112:1::2a]) by core3.amsl.com (Postfix) with ESMTP id 271B83A6E04 for ; Sun, 16 Jan 2011 12:42:04 -0800 (PST) Received: from localhost ([::1] helo=zinfandel.tools.ietf.org) by zinfandel.tools.ietf.org with esmtp (Exim 4.72) (envelope-from ) id 1PeZSi-0007Vw-UV; Sun, 16 Jan 2011 12:44:33 -0800 MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 8bit From: "core issue tracker" X-Trac-Version: 0.11.7 Precedence: bulk Auto-Submitted: auto-generated X-Mailer: Trac 0.11.7, by Edgewall Software To: hartke@tzi.org, zach@sensinode.com X-Trac-Project: core Date: Sun, 16 Jan 2011 20:44:32 -0000 X-URL: http://tools.ietf.org/core/ X-Trac-Ticket-URL: http://trac.tools.ietf.org/wg/core/trac/ticket/88#comment:2 Message-ID: <066.fdd31fb9c8e4180b3d87736b4cb30439@tools.ietf.org> References: <057.98d8fa2673e31ecf2732bfa3c234c0b1@tools.ietf.org> X-Trac-Ticket-ID: 88 In-Reply-To: <057.98d8fa2673e31ecf2732bfa3c234c0b1@tools.ietf.org> X-SA-Exim-Connect-IP: ::1 X-SA-Exim-Rcpt-To: hartke@tzi.org, zach@sensinode.com, core@ietf.org X-SA-Exim-Mail-From: trac@tools.ietf.org X-SA-Exim-Scanned: No (on zinfandel.tools.ietf.org); SAEximRunCond expanded to false Cc: core@ietf.org Subject: Re: [core] coap #88 (closed): HTTP mappin section improvements X-BeenThere: core@ietf.org X-Mailman-Version: 2.1.9 List-Id: "Constrained RESTful Environments \(CoRE\) Working Group list" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sun, 16 Jan 2011 20:42:05 -0000 #88: HTTP mappin section improvements Changes (by hartke@…): * status: new => closed * resolution: => fixed Comment: Done in coap-04. -- --------------------------------+------------------------------------------- Reporter: zach@… | Owner: hartke@… Type: enhancement | Status: closed Priority: minor | Milestone: Component: coap | Version: Severity: - | Resolution: fixed Keywords: | --------------------------------+------------------------------------------- Ticket URL: core From trac@tools.ietf.org Sun Jan 16 12:48:25 2011 Return-Path: X-Original-To: core@core3.amsl.com Delivered-To: core@core3.amsl.com Received: from localhost (localhost [127.0.0.1]) by core3.amsl.com (Postfix) with ESMTP id D7C7D3A6E58 for ; Sun, 16 Jan 2011 12:48:25 -0800 (PST) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -102.587 X-Spam-Level: X-Spam-Status: No, score=-102.587 tagged_above=-999 required=5 tests=[AWL=0.013, BAYES_00=-2.599, NO_RELAYS=-0.001, USER_IN_WHITELIST=-100] Received: from mail.ietf.org ([64.170.98.32]) by localhost (core3.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id hmygNPd-FAVt for ; Sun, 16 Jan 2011 12:48:25 -0800 (PST) Received: from zinfandel.tools.ietf.org (unknown [IPv6:2001:1890:1112:1::2a]) by core3.amsl.com (Postfix) with ESMTP id 32ABF3A6E04 for ; Sun, 16 Jan 2011 12:48:25 -0800 (PST) Received: from localhost ([::1] helo=zinfandel.tools.ietf.org) by zinfandel.tools.ietf.org with esmtp (Exim 4.72) (envelope-from ) id 1PeZYs-0003ZG-9C; Sun, 16 Jan 2011 12:50:54 -0800 MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 8bit From: "core issue tracker" X-Trac-Version: 0.11.7 Precedence: bulk Auto-Submitted: auto-generated X-Mailer: Trac 0.11.7, by Edgewall Software To: hartke@tzi.org, cabo@tzi.org, zach@sensinode.com X-Trac-Project: core Date: Sun, 16 Jan 2011 20:50:54 -0000 X-URL: http://tools.ietf.org/core/ X-Trac-Ticket-URL: http://trac.tools.ietf.org/wg/core/trac/ticket/88#comment:3 Message-ID: <066.26d4abbad43cb4baba700d947dbca4ab@tools.ietf.org> References: <057.98d8fa2673e31ecf2732bfa3c234c0b1@tools.ietf.org> X-Trac-Ticket-ID: 88 In-Reply-To: <057.98d8fa2673e31ecf2732bfa3c234c0b1@tools.ietf.org> X-SA-Exim-Connect-IP: ::1 X-SA-Exim-Rcpt-To: hartke@tzi.org, cabo@tzi.org, zach@sensinode.com, core@ietf.org X-SA-Exim-Mail-From: trac@tools.ietf.org X-SA-Exim-Scanned: No (on zinfandel.tools.ietf.org); SAEximRunCond expanded to false Cc: core@ietf.org Subject: Re: [core] coap #88 (closed): HTTP mappin section improvements X-BeenThere: core@ietf.org X-Mailman-Version: 2.1.9 List-Id: "Constrained RESTful Environments \(CoRE\) Working Group list" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sun, 16 Jan 2011 20:48:26 -0000 #88: HTTP mappin section improvements Comment(by cabo@…): (This is now section 8.) -- --------------------------------+------------------------------------------- Reporter: zach@… | Owner: hartke@… Type: enhancement | Status: closed Priority: minor | Milestone: Component: coap | Version: Severity: - | Resolution: fixed Keywords: | --------------------------------+------------------------------------------- Ticket URL: core From trac@tools.ietf.org Mon Jan 17 03:21:27 2011 Return-Path: X-Original-To: core@core3.amsl.com Delivered-To: core@core3.amsl.com Received: from localhost (localhost [127.0.0.1]) by core3.amsl.com (Postfix) with ESMTP id BCC923A6D44 for ; Mon, 17 Jan 2011 03:21:27 -0800 (PST) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -102.587 X-Spam-Level: X-Spam-Status: No, score=-102.587 tagged_above=-999 required=5 tests=[AWL=0.013, BAYES_00=-2.599, NO_RELAYS=-0.001, USER_IN_WHITELIST=-100] Received: from mail.ietf.org ([64.170.98.32]) by localhost (core3.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id Qj1ypRam87iz for ; Mon, 17 Jan 2011 03:21:26 -0800 (PST) Received: from zinfandel.tools.ietf.org (unknown [IPv6:2001:1890:1112:1::2a]) by core3.amsl.com (Postfix) with ESMTP id B4BDC3A6F2D for ; Mon, 17 Jan 2011 03:21:26 -0800 (PST) Received: from localhost ([::1] helo=zinfandel.tools.ietf.org) by zinfandel.tools.ietf.org with esmtp (Exim 4.72) (envelope-from ) id 1PenBm-0008CQ-S0; Mon, 17 Jan 2011 03:23:58 -0800 MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 8bit From: "core issue tracker" X-Trac-Version: 0.11.7 Precedence: bulk Auto-Submitted: auto-generated X-Mailer: Trac 0.11.7, by Edgewall Software To: hartke@tzi.org, zach@sensinode.com X-Trac-Project: core Date: Mon, 17 Jan 2011 11:23:58 -0000 X-URL: http://tools.ietf.org/core/ X-Trac-Ticket-URL: http://trac.tools.ietf.org/wg/core/trac/ticket/71#comment:2 Message-ID: <062.2c0b7d84479f2cb7c764ceaa6fb8b064@tools.ietf.org> References: <053.57a7428f32de33ba4221270bca8ca168@tools.ietf.org> X-Trac-Ticket-ID: 71 In-Reply-To: <053.57a7428f32de33ba4221270bca8ca168@tools.ietf.org> X-SA-Exim-Connect-IP: ::1 X-SA-Exim-Rcpt-To: hartke@tzi.org, zach@sensinode.com, core@ietf.org X-SA-Exim-Mail-From: trac@tools.ietf.org X-SA-Exim-Scanned: No (on zinfandel.tools.ietf.org); SAEximRunCond expanded to false Cc: core@ietf.org Subject: Re: [core] coap #71 (closed): Terminology section X-BeenThere: core@ietf.org X-Mailman-Version: 2.1.9 List-Id: "Constrained RESTful Environments \(CoRE\) Working Group list" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 17 Jan 2011 11:21:27 -0000 #71: Terminology section Changes (by zach@…): * status: new => closed * resolution: => fixed Comment: Added to coap-04. -- ----------------------------+----------------------------------------------- Reporter: hartke@… | Owner: hartke@… Type: enhancement | Status: closed Priority: minor | Milestone: Component: coap | Version: Severity: - | Resolution: fixed Keywords: | ----------------------------+----------------------------------------------- Ticket URL: core From angelo.castellani@gmail.com Tue Jan 18 01:42:34 2011 Return-Path: X-Original-To: core@core3.amsl.com Delivered-To: core@core3.amsl.com Received: from localhost (localhost [127.0.0.1]) by core3.amsl.com (Postfix) with ESMTP id 5847E3A6EBC for ; Tue, 18 Jan 2011 01:42:34 -0800 (PST) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -2.508 X-Spam-Level: X-Spam-Status: No, score=-2.508 tagged_above=-999 required=5 tests=[AWL=0.469, BAYES_00=-2.599, FM_FORGED_GMAIL=0.622, RCVD_IN_DNSWL_LOW=-1] Received: from mail.ietf.org ([64.170.98.32]) by localhost (core3.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id ndASjCd0TgoD for ; Tue, 18 Jan 2011 01:42:33 -0800 (PST) Received: from mail-qw0-f44.google.com (mail-qw0-f44.google.com [209.85.216.44]) by core3.amsl.com (Postfix) with ESMTP id 0C5A33A6DAA for ; Tue, 18 Jan 2011 01:42:32 -0800 (PST) Received: by qwi2 with SMTP id 2so5973607qwi.31 for ; Tue, 18 Jan 2011 01:45:09 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma; h=domainkey-signature:mime-version:sender:in-reply-to:references:from :date:x-google-sender-auth:message-id:subject:to:cc:content-type :content-transfer-encoding; bh=7Lo938GD4pOEo6kn/QOG8FswEBJG7kn3NacOA+1fUZw=; b=hZlCJsH2GB4m+HUK8Eu5iCEfnMjpcP76iLbEwy/ANyXx368BHE+R8NFlebOuhWCoka VBPYnOCSrSL9Sl+q3iZGl1fe/seLh1ntGYKwR4by5jJk8Ba8AX1uc3+4471ySBw05TMm 35owjZSbVqbIoujIPfE5xRFpN+E0IuarbXDfU= DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=mime-version:sender:in-reply-to:references:from:date :x-google-sender-auth:message-id:subject:to:cc:content-type :content-transfer-encoding; b=C5dhpYEoURTd9OvvhZsysPagQHj+UtbijAQzDDSNE2aVjKVSJgjzCaGoRKHQI+UepF Zl7HPVQdCdsL8oXVoF99APu/BgzRBSOFqOSVk+57STE+IBIvWOSvl7ZidoPbwxvwhGGf GkICgPmQwxWHZTOYd/V5CWi5pOUTZTvuMIm9k= Received: by 10.229.233.74 with SMTP id jx10mr4704528qcb.97.1295343907940; Tue, 18 Jan 2011 01:45:07 -0800 (PST) MIME-Version: 1.0 Sender: angelo.castellani@gmail.com Received: by 10.229.222.195 with HTTP; Tue, 18 Jan 2011 01:44:47 -0800 (PST) In-Reply-To: <201011221005.37045.mab@comnets.uni-bremen.de> References: <201011221005.37045.mab@comnets.uni-bremen.de> From: "Angelo P. Castellani" Date: Tue, 18 Jan 2011 10:44:47 +0100 X-Google-Sender-Auth: SI3ok8RAYPI_DASEln2SEc10FTY Message-ID: To: Markus Becker Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: quoted-printable Cc: core@ietf.org Subject: Re: [core] Help me with CoAP Demo X-BeenThere: core@ietf.org X-Mailman-Version: 2.1.9 Precedence: list List-Id: "Constrained RESTful Environments \(CoRE\) Working Group list" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 18 Jan 2011 09:42:34 -0000 Markus, if you are interested in another TinyOS implementation, we have published our implementation named CoAPC: https://telecom.dei.unipd.it/pages/read/59/ Our work has some limitations however can be a good starting point. Best, Angelo On Mon, Nov 22, 2010 at 10:05, Markus Becker wr= ote: >> Dear evey one, >> >> now i am starting with CoAP and have to make a demo. >> >> do you know where i should start ? and does it have any demo is availabl= e >> for CoAP (in tinyos or contiki). >> >> could you give me some guide for CoAP Demo? > > Probably you would want to start with Olaf's C implementation libcoap [1]= or > Peter's Python implementation coappy [2] on a usual computer and not star= t > directly on WSN nodes. > > [1] http://sourceforge.net/projects/libcoap/ > [2] http://coapy.sourceforge.net/ > > We are currently working on a port of libcoap to TinyOS. > > Markus > >> thank you very much, >> >> >> =A0 =A0 =A0 =A0 Ngoc Thanh > ------------------------------------------------ > | Dipl.-Ing. Markus Becker > | Communication Networks > | Mobile Research Center > | TZI - Center for Computing Technologies > | University Bremen > | Germany > ------------------------------------------------ > | web: http://www.comnets.uni-bremen.de/~mab/ > | mailto: mab@comnets.uni-bremen.de > | telephone: +49 421 218 62379 > | building: NW1 room: N2260 > ------------------------------------------------ > _______________________________________________ > core mailing list > core@ietf.org > https://www.ietf.org/mailman/listinfo/core > From mab@comnets.uni-bremen.de Tue Jan 18 02:39:25 2011 Return-Path: X-Original-To: core@core3.amsl.com Delivered-To: core@core3.amsl.com Received: from localhost (localhost [127.0.0.1]) by core3.amsl.com (Postfix) with ESMTP id 9FFDD3A6F7C for ; Tue, 18 Jan 2011 02:39:25 -0800 (PST) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -5.847 X-Spam-Level: X-Spam-Status: No, score=-5.847 tagged_above=-999 required=5 tests=[AWL=0.402, BAYES_00=-2.599, HELO_EQ_DE=0.35, RCVD_IN_DNSWL_MED=-4] Received: from mail.ietf.org ([64.170.98.32]) by localhost (core3.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id 3eJUnqSvy+Or for ; Tue, 18 Jan 2011 02:39:24 -0800 (PST) Received: from bugs.comnets.uni-bremen.de (bugs.comnets.uni-bremen.de [134.102.186.10]) by core3.amsl.com (Postfix) with ESMTP id 782F03A6F6E for ; Tue, 18 Jan 2011 02:39:24 -0800 (PST) Received: from shelbyville.comnets.uni-bremen.de (unknown [10.8.0.26]) by bugs.comnets.uni-bremen.de (Postfix) with ESMTPS id B75B2D40131; Tue, 18 Jan 2011 11:41:55 +0100 (CET) From: Markus Becker Organization: Comnets, University Bremen To: "Angelo P. Castellani" Date: Tue, 18 Jan 2011 11:41:46 +0100 User-Agent: KMail/1.13.5 (Linux/2.6.32-5-686; KDE/4.5.3; i686; ; ) References: <201011221005.37045.mab@comnets.uni-bremen.de> In-Reply-To: MIME-Version: 1.0 Content-Type: Text/Plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Message-Id: <201101181141.49341.mab@comnets.uni-bremen.de> Cc: core@ietf.org Subject: Re: [core] Help me with CoAP Demo X-BeenThere: core@ietf.org X-Mailman-Version: 2.1.9 Precedence: list List-Id: "Constrained RESTful Environments \(CoRE\) Working Group list" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 18 Jan 2011 10:39:25 -0000 Hi Angelo, our port of libcoap is now rather far as well. There is a client and a server component, which adapts Olaf's libcoap to TinyOS based on blip-1.0. Available at: http://www.comnets.uni-bremen.de/~mab/git/tinyos-main.git/ (via git) Some limitations as well, of course ... Markus > Markus, > if you are interested in another TinyOS implementation, we have > published our implementation named CoAPC: > https://telecom.dei.unipd.it/pages/read/59/ > > Our work has some limitations however can be a good starting point. > > Best, > Angelo > > On Mon, Nov 22, 2010 at 10:05, Markus Becker wrote: > >> Dear evey one, > >> > >> now i am starting with CoAP and have to make a demo. > >> > >> do you know where i should start ? and does it have any demo is > >> available for CoAP (in tinyos or contiki). > >> > >> could you give me some guide for CoAP Demo? > > > > Probably you would want to start with Olaf's C implementation libcoap [1] > > or Peter's Python implementation coappy [2] on a usual computer and not > > start directly on WSN nodes. > > > > [1] http://sourceforge.net/projects/libcoap/ > > [2] http://coapy.sourceforge.net/ > > > > We are currently working on a port of libcoap to TinyOS. > > > > Markus > > > >> thank you very much, > >> > >> > >> Ngoc Thanh > > > > ------------------------------------------------ > > > > | Dipl.-Ing. Markus Becker > > | Communication Networks > > | Mobile Research Center > > | TZI - Center for Computing Technologies > > | University Bremen > > | Germany > > > > ------------------------------------------------ > > > > | web: http://www.comnets.uni-bremen.de/~mab/ > > | mailto: mab@comnets.uni-bremen.de > > | telephone: +49 421 218 62379 > > | building: NW1 room: N2260 > > > > ------------------------------------------------ > > _______________________________________________ > > core mailing list > > core@ietf.org > > https://www.ietf.org/mailman/listinfo/core ------------------------------------------------ | Dipl.-Ing. Markus Becker | Communication Networks | Mobile Research Center | TZI - Center for Computing Technologies | University Bremen | Germany ------------------------------------------------ | web: http://www.comnets.uni-bremen.de/~mab/ | mailto: mab@comnets.uni-bremen.de | telephone: +49 421 218 62379 | building: NW1 room: N2260 ------------------------------------------------ From trac@tools.ietf.org Tue Jan 18 09:19:14 2011 Return-Path: X-Original-To: core@core3.amsl.com Delivered-To: core@core3.amsl.com Received: from localhost (localhost [127.0.0.1]) by core3.amsl.com (Postfix) with ESMTP id C255E28C0F1 for ; Tue, 18 Jan 2011 09:19:14 -0800 (PST) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -102.587 X-Spam-Level: X-Spam-Status: No, score=-102.587 tagged_above=-999 required=5 tests=[AWL=0.013, BAYES_00=-2.599, NO_RELAYS=-0.001, USER_IN_WHITELIST=-100] Received: from mail.ietf.org ([64.170.98.32]) by localhost (core3.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id 8fxr9s0uQnaU for ; Tue, 18 Jan 2011 09:19:13 -0800 (PST) Received: from zinfandel.tools.ietf.org (unknown [IPv6:2001:1890:1112:1::2a]) by core3.amsl.com (Postfix) with ESMTP id 72D723A6BA3 for ; Tue, 18 Jan 2011 09:19:13 -0800 (PST) Received: from localhost ([::1] helo=zinfandel.tools.ietf.org) by zinfandel.tools.ietf.org with esmtp (Exim 4.72) (envelope-from ) id 1PfFFc-0005pq-Lt; Tue, 18 Jan 2011 09:21:48 -0800 MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 8bit From: "core issue tracker" X-Trac-Version: 0.11.7 Precedence: bulk Auto-Submitted: auto-generated X-Mailer: Trac 0.11.7, by Edgewall Software To: zach@sensinode.com, cabo@tzi.org X-Trac-Project: core Date: Tue, 18 Jan 2011 17:21:48 -0000 X-URL: http://tools.ietf.org/core/ X-Trac-Ticket-URL: http://trac.tools.ietf.org/wg/core/trac/ticket/46#comment:1 Message-ID: <066.29e5697e891957fa250979daaafbc945@tools.ietf.org> References: <057.402b325076adf6c484c4eea03498eaf9@tools.ietf.org> X-Trac-Ticket-ID: 46 In-Reply-To: <057.402b325076adf6c484c4eea03498eaf9@tools.ietf.org> X-SA-Exim-Connect-IP: ::1 X-SA-Exim-Rcpt-To: zach@sensinode.com, cabo@tzi.org, core@ietf.org X-SA-Exim-Mail-From: trac@tools.ietf.org X-SA-Exim-Scanned: No (on zinfandel.tools.ietf.org); SAEximRunCond expanded to false Cc: core@ietf.org Subject: Re: [core] block #46 (closed): Error codes for block X-BeenThere: core@ietf.org X-Mailman-Version: 2.1.9 List-Id: "Constrained RESTful Environments \(CoRE\) Working Group list" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 18 Jan 2011 17:19:15 -0000 #46: Error codes for block Changes (by cabo@…): * status: new => closed * resolution: => fixed Comment: Together with a general overhaul of response codes in coap-04, the response code 4.13 (Request Block Error) will now be defined in block-01. -- --------------------------------+------------------------------------------- Reporter: zach@… | Owner: zach@… Type: task | Status: closed Priority: trivial | Milestone: Component: block | Version: Severity: - | Resolution: fixed Keywords: | --------------------------------+------------------------------------------- Ticket URL: core From stpeter@stpeter.im Wed Jan 19 13:58:14 2011 Return-Path: X-Original-To: core@core3.amsl.com Delivered-To: core@core3.amsl.com Received: from localhost (localhost [127.0.0.1]) by core3.amsl.com (Postfix) with ESMTP id D35683A71DC for ; Wed, 19 Jan 2011 13:58:14 -0800 (PST) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -102.566 X-Spam-Level: X-Spam-Status: No, score=-102.566 tagged_above=-999 required=5 tests=[AWL=0.033, BAYES_00=-2.599, USER_IN_WHITELIST=-100] Received: from mail.ietf.org ([64.170.98.32]) by localhost (core3.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id FmnziPgDKc1d for ; Wed, 19 Jan 2011 13:58:13 -0800 (PST) Received: from stpeter.im (stpeter.im [207.210.219.233]) by core3.amsl.com (Postfix) with ESMTP id B8CA23A71DB for ; Wed, 19 Jan 2011 13:58:13 -0800 (PST) Received: from leavealone.cisco.com (72-163-0-129.cisco.com [72.163.0.129]) (Authenticated sender: stpeter) by stpeter.im (Postfix) with ESMTPSA id 99B8F400EE for ; Wed, 19 Jan 2011 15:16:32 -0700 (MST) Message-ID: <4D375F13.7010202@stpeter.im> Date: Wed, 19 Jan 2011 15:00:51 -0700 From: Peter Saint-Andre User-Agent: Mozilla/5.0 (Macintosh; U; Intel Mac OS X 10.5; en-US; rv:1.9.2.13) Gecko/20101207 Thunderbird/3.1.7 MIME-Version: 1.0 To: core@ietf.org X-Enigmail-Version: 1.1.1 OpenPGP: url=http://www.saint-andre.com/me/stpeter.asc Content-Type: multipart/signed; protocol="application/pkcs7-signature"; micalg=sha1; boundary="------------ms060701070006020104060100" Subject: [core] Fwd: Last Call: (A Security Framework for Routing over Low Power and Lossy Networks) to Informational RFC X-BeenThere: core@ietf.org X-Mailman-Version: 2.1.9 Precedence: list List-Id: "Constrained RESTful Environments \(CoRE\) Working Group list" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 19 Jan 2011 21:58:15 -0000 This is a cryptographically signed message in MIME format. --------------ms060701070006020104060100 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: quoted-printable Has anyone in the CORE WG reviewed this document? It provides good coverage of some underlying security issues that might have an impact on constrained networks of the kind discussed in the CORE WG... /psa -------- Original Message -------- Subject: Last Call: (A Security Framework for Routing over Low Power and Lossy Networks) to Informational RFC Date: Fri, 10 Dec 2010 13:25:50 -0800 From: The IESG To: IETF-Announce CC: roll@ietf.org The IESG has received a request from the Routing Over Low power and Lossy= networks WG (roll) to consider the following document: - 'A Security Framework for Routing over Low Power and Lossy Networks' as an Informational RFC The IESG plans to make a decision in the next few weeks, and solicits final comments on this action. Please send substantive comments to the ietf@ietf.org mailing lists by 2010-12-30. Exceptionally, comments may be= sent to iesg@ietf.org instead. In either case, please retain the beginning of the Subject line to allow automated sorting. The file can be obtained via http://datatracker.ietf.org/doc/draft-ietf-roll-security-framework/ IESG discussion can be tracked via http://datatracker.ietf.org/doc/draft-ietf-roll-security-framework/ No IPR declarations have been submitted directly on this I-D. _______________________________________________ IETF-Announce mailing list IETF-Announce@ietf.org https://www.ietf.org/mailman/listinfo/ietf-announce --------------ms060701070006020104060100 Content-Type: application/pkcs7-signature; name="smime.p7s" Content-Transfer-Encoding: base64 Content-Disposition: attachment; filename="smime.p7s" Content-Description: S/MIME Cryptographic Signature MIAGCSqGSIb3DQEHAqCAMIACAQExCzAJBgUrDgMCGgUAMIAGCSqGSIb3DQEHAQAAoIITzjCC BjQwggQcoAMCAQICASMwDQYJKoZIhvcNAQELBQAwfTELMAkGA1UEBhMCSUwxFjAUBgNVBAoT DVN0YXJ0Q29tIEx0ZC4xKzApBgNVBAsTIlNlY3VyZSBEaWdpdGFsIENlcnRpZmljYXRlIFNp Z25pbmcxKTAnBgNVBAMTIFN0YXJ0Q29tIENlcnRpZmljYXRpb24gQXV0aG9yaXR5MB4XDTA3 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9w0BAQEFAASCAQCSmagtysboklLa06UdWqpv4r2qYqi2LRcXG9iR3C9ytqqLyeDZFMt7uk44 OMqMoh5lA5PshiRw1zmSizIAT88uT7d+Bv67rhG92KFQ1aFxGsl8sLMRe7/0qrj+bc+D0+VL 0cB+4cmvyC1NsmPIAXLM+wV3NZbBr2XTkqSiIZFHgzOSfgTOu6ZJDeuXPvcv2rVVa09ueHO+ 0fvmlwEvcAUcXwKp3ZT9XWxErEksz8Ap8q06Tr9pRSbKKl/R65E+bVb22DXv0XDt00CGetc+ XTg7aPczYN3SSiWFdYDUATeP7BTOlFQzGbTVygiE6pKfnWZNdqRoGYHTi7VaPIGCJWp8AAAA AAAA --------------ms060701070006020104060100-- From angelo.castellani@gmail.com Thu Jan 20 02:21:34 2011 Return-Path: X-Original-To: core@core3.amsl.com Delivered-To: core@core3.amsl.com Received: from localhost (localhost [127.0.0.1]) by core3.amsl.com (Postfix) with ESMTP id A30323A6F75 for ; Thu, 20 Jan 2011 02:21:34 -0800 (PST) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -2.536 X-Spam-Level: X-Spam-Status: No, score=-2.536 tagged_above=-999 required=5 tests=[AWL=0.441, BAYES_00=-2.599, FM_FORGED_GMAIL=0.622, RCVD_IN_DNSWL_LOW=-1] Received: from mail.ietf.org ([64.170.98.32]) by localhost (core3.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id dHsSU+e9ERML for ; Thu, 20 Jan 2011 02:21:32 -0800 (PST) Received: from mail-qw0-f44.google.com (mail-qw0-f44.google.com [209.85.216.44]) by core3.amsl.com (Postfix) with ESMTP id 9F12E3A6DA2 for ; Thu, 20 Jan 2011 02:21:32 -0800 (PST) Received: by qwi2 with SMTP id 2so439701qwi.31 for ; Thu, 20 Jan 2011 02:24:15 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma; h=domainkey-signature:mime-version:sender:in-reply-to:references:from :date:x-google-sender-auth:message-id:subject:to:cc:content-type :content-transfer-encoding; bh=KhSA8/XtLxdGoKshg5cm2sztaZ9E0sZ42MaWnApVqwg=; b=EEaXc4RLssTxBxbAyTc9QL+3IdGZTkQJ51Rw7CzCM+hWRs1nWt1z3HBBD8NFBpHnmN FTGUoFo4O+LurWjmkDwP2ZCUjVz4yzqEq08/rKrbLoQpQ326TKLJLTS8fTCmg9FJOuku 7/V6gKg6Qt0n6etWAj/pWWwtBVd+q5pLftr3I= DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=mime-version:sender:in-reply-to:references:from:date :x-google-sender-auth:message-id:subject:to:cc:content-type :content-transfer-encoding; b=ipqS4zbCxh+oLYzJX3j3OcgENkuvCNw2tz2ZeC5kvy1m376HFh1ApRRMT4JoLT9Ijq nNBjebonJaRCzYxy7rFWuOVfI44sn9ujJAh78EVzPfOwNaE5kGSjeJdEfngD1R+6Wn+0 S3SRrdgG3uIcIlUPPDDUk0zb/SKsYtvwgZtVg= Received: by 10.229.233.196 with SMTP id jz4mr1659384qcb.135.1295519054885; Thu, 20 Jan 2011 02:24:14 -0800 (PST) MIME-Version: 1.0 Sender: angelo.castellani@gmail.com Received: by 10.229.222.195 with HTTP; Thu, 20 Jan 2011 02:23:54 -0800 (PST) In-Reply-To: <91473B88-3BDF-404D-947C-A717A3399243@cisco.com> References: <91473B88-3BDF-404D-947C-A717A3399243@cisco.com> From: "Angelo P. Castellani" Date: Thu, 20 Jan 2011 11:23:54 +0100 X-Google-Sender-Auth: DFC_oTrqbgVmIb3-Gh39IeoVUts Message-ID: To: Cullen Jennings Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: quoted-printable Cc: core WG Subject: Re: [core] WGLC for draft-ietf-core-link-format-02 X-BeenThere: core@ietf.org X-Mailman-Version: 2.1.9 Precedence: list List-Id: "Constrained RESTful Environments \(CoRE\) Working Group list" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 20 Jan 2011 10:21:34 -0000 Probably I've missed something, however I have the feeling that the /.well-known/core URI is useful mainly for an human interaction with a CoAP server. Link format could be certainly an useful technique for M2M applications, and in the current draft some information useful for that kind of interaction is present (content-type, interface description, ..). In contrast to this the /.well-known/core URI seems hardly useful by a machine, because it will provide a list of resources.. For what I can see written in the draft, I cannot understand why a machine could start a discovery procedure to see the whole content in the network... Moreover this procedure leaves space for the known amplification attacks pointed out in the CoAP draft. In my opinion, machines are instructed to do specific tasks, and for that tasks they probably will want to start a *service-specific* discovery in the network. The draft tells that the /.well-known/core URI is a MUST. Probably the real question is: Are humans supposed to use CoAP directly? I don't think so, and for this reason I think that the /.well-known/core URI is not very useful at all. I apologize for the late comment, I have had right now a more clear idea about this... Best, Angelo On Wed, Jan 12, 2011 at 16:42, Cullen Jennings wrote: > > I would like to start the working group last call for draft-ietf-core-lin= k-format-02. Please review the draft and send comments to list by the end o= f the day Jan 26. If you review the draft and have no comments, send an ema= il to the list or to the chairs so we have an idea of how much review the d= raft received. > > The draft is at http://tools.ietf.org/html/draft-ietf-core-link-format-02 > > Thank you, > > Cullen & Carsten > > _______________________________________________ > core mailing list > core@ietf.org > https://www.ietf.org/mailman/listinfo/core > From cabo@tzi.org Thu Jan 20 03:38:48 2011 Return-Path: X-Original-To: core@core3.amsl.com Delivered-To: core@core3.amsl.com Received: from localhost (localhost [127.0.0.1]) by core3.amsl.com (Postfix) with ESMTP id 5E2EB3A70EC for ; Thu, 20 Jan 2011 03:38:48 -0800 (PST) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -106.4 X-Spam-Level: X-Spam-Status: No, score=-106.4 tagged_above=-999 required=5 tests=[AWL=-0.151, BAYES_00=-2.599, HELO_EQ_DE=0.35, RCVD_IN_DNSWL_MED=-4, USER_IN_WHITELIST=-100] Received: from mail.ietf.org ([64.170.98.32]) by localhost (core3.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id I8UOwWACR-Ji for ; Thu, 20 Jan 2011 03:38:47 -0800 (PST) Received: from informatik.uni-bremen.de (mailhost.informatik.uni-bremen.de [IPv6:2001:638:708:30c9::12]) by core3.amsl.com (Postfix) with ESMTP id 2ED773A6E47 for ; Thu, 20 Jan 2011 03:38:46 -0800 (PST) X-Virus-Scanned: amavisd-new at informatik.uni-bremen.de Received: from smtp-fb3.informatik.uni-bremen.de (smtp-fb3.informatik.uni-bremen.de [134.102.224.120]) by informatik.uni-bremen.de (8.14.3/8.14.3) with ESMTP id p0KBfJbe017438; Thu, 20 Jan 2011 12:41:19 +0100 (CET) Received: from [192.168.217.101] (p5489FCAA.dip.t-dialin.net [84.137.252.170]) (using TLSv1 with cipher AES128-SHA (128/128 bits)) (No client certificate requested) by smtp-fb3.informatik.uni-bremen.de (Postfix) with ESMTPSA id A11B45E5; Thu, 20 Jan 2011 12:41:19 +0100 (CET) Mime-Version: 1.0 (Apple Message framework v1082) Content-Type: text/plain; charset=us-ascii From: Carsten Bormann In-Reply-To: Date: Thu, 20 Jan 2011 12:41:22 +0100 Content-Transfer-Encoding: quoted-printable Message-Id: <5723A7F1-4BC4-4A1B-B420-A403BA7755AA@tzi.org> References: <91473B88-3BDF-404D-947C-A717A3399243@cisco.com> To: "Angelo P. Castellani" X-Mailer: Apple Mail (2.1082) Cc: core WG Subject: Re: [core] WGLC for draft-ietf-core-link-format-02 X-BeenThere: core@ietf.org X-Mailman-Version: 2.1.9 Precedence: list List-Id: "Constrained RESTful Environments \(CoRE\) Working Group list" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 20 Jan 2011 11:38:48 -0000 Hi Angelo, indeed the draft could explain better what the underlying discovery = model is. Maybe it doesn't because the discovery mechanisms are independent from = how you use them, so strictly you don't have to understand the use case = to use this protocol... But it sure helps when evaluating it. During commissioning, if you have machines do all the discovery, they = will never quite know what the items/objects mean. They also can't really know environmental information, e.g. that the = light switch B46FFE9DC12A4EEC8DF25346D88E1FB6 is the one near the = kitchen door. So a human installer will still be needed in many cases -- either at the = place of installation or beforehand in planning/supervising an off-site = commissioning process. However, a human installer can be helped by a reasonably smart user = interface on an installer device, and that in turn can be helped a lot = by devices providing some information about themselves. Making this information available may even enable simplifying the user = interface for a simple installation enough that you actually can do it = using a LED and two buttons. In short, supporting installation/commissioning is the most useful = application I see for resource discovery. There are also applications in diagnostics/debugging and other = management activities. Gruesse, Carsten From trac@tools.ietf.org Thu Jan 20 15:36:39 2011 Return-Path: X-Original-To: core@core3.amsl.com Delivered-To: core@core3.amsl.com Received: from localhost (localhost [127.0.0.1]) by core3.amsl.com (Postfix) with ESMTP id 8739D3A6889 for ; Thu, 20 Jan 2011 15:36:39 -0800 (PST) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -102.587 X-Spam-Level: X-Spam-Status: No, score=-102.587 tagged_above=-999 required=5 tests=[AWL=0.013, BAYES_00=-2.599, NO_RELAYS=-0.001, USER_IN_WHITELIST=-100] Received: from mail.ietf.org ([64.170.98.32]) by localhost (core3.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id BzP1ugNmJFih for ; Thu, 20 Jan 2011 15:36:38 -0800 (PST) Received: from zinfandel.tools.ietf.org (unknown [IPv6:2001:1890:1112:1::2a]) by core3.amsl.com (Postfix) with ESMTP id DFF033A687D for ; Thu, 20 Jan 2011 15:36:38 -0800 (PST) Received: from localhost ([::1] helo=zinfandel.tools.ietf.org) by zinfandel.tools.ietf.org with esmtp (Exim 4.72) (envelope-from ) id 1Pg467-0007BO-4Y; Thu, 20 Jan 2011 15:39:23 -0800 MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 8bit From: "core issue tracker" X-Trac-Version: 0.11.7 Precedence: bulk Auto-Submitted: auto-generated X-Mailer: Trac 0.11.7, by Edgewall Software To: cabo@tzi.org X-Trac-Project: core Date: Thu, 20 Jan 2011 23:39:23 -0000 X-URL: http://tools.ietf.org/core/ X-Trac-Ticket-URL: http://trac.tools.ietf.org/wg/core/trac/ticket/48#comment:1 Message-ID: <066.62f70d87121e2f1b52512442af91f0f8@tools.ietf.org> References: <057.8ff30dd8b9126a4f506cc1fe56054290@tools.ietf.org> X-Trac-Ticket-ID: 48 In-Reply-To: <057.8ff30dd8b9126a4f506cc1fe56054290@tools.ietf.org> X-SA-Exim-Connect-IP: ::1 X-SA-Exim-Rcpt-To: cabo@tzi.org, core@ietf.org X-SA-Exim-Mail-From: trac@tools.ietf.org X-SA-Exim-Scanned: No (on zinfandel.tools.ietf.org); SAEximRunCond expanded to false Cc: core@ietf.org Subject: Re: [core] block #48 (closed): Examples needed X-BeenThere: core@ietf.org X-Mailman-Version: 2.1.9 List-Id: "Constrained RESTful Environments \(CoRE\) Working Group list" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 20 Jan 2011 23:36:39 -0000 #48: Examples needed Changes (by cabo@…): * status: new => closed * resolution: => fixed Comment: Added in block-01. -- --------------------------------+------------------------------------------- Reporter: zach@… | Owner: cabo@… Type: enhancement | Status: closed Priority: minor | Milestone: Component: block | Version: Severity: - | Resolution: fixed Keywords: | --------------------------------+------------------------------------------- Ticket URL: core From trac@tools.ietf.org Thu Jan 20 16:53:03 2011 Return-Path: X-Original-To: core@core3.amsl.com Delivered-To: core@core3.amsl.com Received: from localhost (localhost [127.0.0.1]) by core3.amsl.com (Postfix) with ESMTP id 471963A6890 for ; Thu, 20 Jan 2011 16:53:03 -0800 (PST) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -102.587 X-Spam-Level: X-Spam-Status: No, score=-102.587 tagged_above=-999 required=5 tests=[AWL=0.013, BAYES_00=-2.599, NO_RELAYS=-0.001, USER_IN_WHITELIST=-100] Received: from mail.ietf.org ([64.170.98.32]) by localhost (core3.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id H9Vx8SgoE4kH for ; Thu, 20 Jan 2011 16:53:02 -0800 (PST) Received: from zinfandel.tools.ietf.org (unknown [IPv6:2001:1890:1112:1::2a]) by core3.amsl.com (Postfix) with ESMTP id 591463A6858 for ; Thu, 20 Jan 2011 16:53:02 -0800 (PST) Received: from localhost ([::1] helo=zinfandel.tools.ietf.org) by zinfandel.tools.ietf.org with esmtp (Exim 4.72) (envelope-from ) id 1Pg5I2-0008IJ-Qn; Thu, 20 Jan 2011 16:55:46 -0800 MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 8bit From: "core issue tracker" X-Trac-Version: 0.11.7 Precedence: bulk Auto-Submitted: auto-generated X-Mailer: Trac 0.11.7, by Edgewall Software To: cabo@tzi.org X-Trac-Project: core Date: Fri, 21 Jan 2011 00:55:46 -0000 X-URL: http://tools.ietf.org/core/ X-Trac-Ticket-URL: http://trac.tools.ietf.org/wg/core/trac/ticket/49#comment:1 Message-ID: <066.9bce28342d99c231bab3b166d3bdf165@tools.ietf.org> References: <057.97f8dcf1fed79b1e46222d730c06cc07@tools.ietf.org> X-Trac-Ticket-ID: 49 In-Reply-To: <057.97f8dcf1fed79b1e46222d730c06cc07@tools.ietf.org> X-SA-Exim-Connect-IP: ::1 X-SA-Exim-Rcpt-To: cabo@tzi.org, core@ietf.org X-SA-Exim-Mail-From: trac@tools.ietf.org X-SA-Exim-Scanned: No (on zinfandel.tools.ietf.org); SAEximRunCond expanded to false Cc: core@ietf.org Subject: Re: [core] block #49 (closed): Security considerations X-BeenThere: core@ietf.org X-Mailman-Version: 2.1.9 List-Id: "Constrained RESTful Environments \(CoRE\) Working Group list" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 21 Jan 2011 00:53:03 -0000 #49: Security considerations Changes (by cabo@…): * status: new => closed * resolution: => fixed Comment: Added in block-01. -- --------------------------------+------------------------------------------- Reporter: zach@… | Owner: cabo@… Type: task | Status: closed Priority: major | Milestone: Component: block | Version: Severity: - | Resolution: fixed Keywords: | --------------------------------+------------------------------------------- Ticket URL: core From trac@tools.ietf.org Fri Jan 21 08:11:36 2011 Return-Path: X-Original-To: core@core3.amsl.com Delivered-To: core@core3.amsl.com Received: from localhost (localhost [127.0.0.1]) by core3.amsl.com (Postfix) with ESMTP id BE6603A6A1D for ; Fri, 21 Jan 2011 08:11:36 -0800 (PST) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -102.587 X-Spam-Level: X-Spam-Status: No, score=-102.587 tagged_above=-999 required=5 tests=[AWL=0.013, BAYES_00=-2.599, NO_RELAYS=-0.001, USER_IN_WHITELIST=-100] Received: from mail.ietf.org ([64.170.98.32]) by localhost (core3.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id Pk1CNe-LL+tW for ; Fri, 21 Jan 2011 08:11:35 -0800 (PST) Received: from zinfandel.tools.ietf.org (unknown [IPv6:2001:1890:1112:1::2a]) by core3.amsl.com (Postfix) with ESMTP id 08E8E3A6A3A for ; Fri, 21 Jan 2011 08:11:35 -0800 (PST) Received: from localhost ([::1] helo=zinfandel.tools.ietf.org) by zinfandel.tools.ietf.org with esmtp (Exim 4.72) (envelope-from ) id 1PgJcv-0000wY-3G; Fri, 21 Jan 2011 08:14:17 -0800 MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 8bit From: "core issue tracker" X-Trac-Version: 0.11.7 Precedence: bulk Auto-Submitted: auto-generated X-Mailer: Trac 0.11.7, by Edgewall Software To: hartke@tzi.org, zach@sensinode.com X-Trac-Project: core Date: Fri, 21 Jan 2011 16:14:17 -0000 X-URL: http://tools.ietf.org/core/ X-Trac-Ticket-URL: http://trac.tools.ietf.org/wg/core/trac/ticket/72#comment:3 Message-ID: <062.445fa2f4e8667f5948de0d0304372ac1@tools.ietf.org> References: <053.639894f29bddd032e710ff634d4068d3@tools.ietf.org> X-Trac-Ticket-ID: 72 In-Reply-To: <053.639894f29bddd032e710ff634d4068d3@tools.ietf.org> X-SA-Exim-Connect-IP: ::1 X-SA-Exim-Rcpt-To: hartke@tzi.org, zach@sensinode.com, core@ietf.org X-SA-Exim-Mail-From: trac@tools.ietf.org X-SA-Exim-Scanned: No (on zinfandel.tools.ietf.org); SAEximRunCond expanded to false Cc: core@ietf.org Subject: Re: [core] coap #72 (new): Proxy versus Reverse proxy X-BeenThere: core@ietf.org X-Mailman-Version: 2.1.9 List-Id: "Constrained RESTful Environments \(CoRE\) Working Group list" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 21 Jan 2011 16:11:37 -0000 #72: Proxy versus Reverse proxy Changes (by hartke@…): * owner: brian@… => hartke@… -- ----------------------------+----------------------------------------------- Reporter: hartke@… | Owner: hartke@… Type: enhancement | Status: new Priority: minor | Milestone: Component: coap | Version: Severity: - | Keywords: ----------------------------+----------------------------------------------- Ticket URL: core From trac@tools.ietf.org Fri Jan 21 08:11:50 2011 Return-Path: X-Original-To: core@core3.amsl.com Delivered-To: core@core3.amsl.com Received: from localhost (localhost [127.0.0.1]) by core3.amsl.com (Postfix) with ESMTP id D79333A6A3F for ; Fri, 21 Jan 2011 08:11:50 -0800 (PST) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -102.587 X-Spam-Level: X-Spam-Status: No, score=-102.587 tagged_above=-999 required=5 tests=[AWL=0.013, BAYES_00=-2.599, NO_RELAYS=-0.001, USER_IN_WHITELIST=-100] Received: from mail.ietf.org ([64.170.98.32]) by localhost (core3.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id DpzTkyVNbej1 for ; Fri, 21 Jan 2011 08:11:50 -0800 (PST) Received: from zinfandel.tools.ietf.org (unknown [IPv6:2001:1890:1112:1::2a]) by core3.amsl.com (Postfix) with ESMTP id 1072A3A6A3E for ; Fri, 21 Jan 2011 08:11:50 -0800 (PST) Received: from localhost ([::1] helo=zinfandel.tools.ietf.org) by zinfandel.tools.ietf.org with esmtp (Exim 4.72) (envelope-from ) id 1PgJdD-000144-F4; Fri, 21 Jan 2011 08:14:35 -0800 MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 8bit From: "core issue tracker" X-Trac-Version: 0.11.7 Precedence: bulk Auto-Submitted: auto-generated X-Mailer: Trac 0.11.7, by Edgewall Software To: hartke@tzi.org, zach@sensinode.com X-Trac-Project: core Date: Fri, 21 Jan 2011 16:14:35 -0000 X-URL: http://tools.ietf.org/core/ X-Trac-Ticket-URL: http://trac.tools.ietf.org/wg/core/trac/ticket/72#comment:4 Message-ID: <062.9729f2f5ba55ab0c5354e53dfd9b941a@tools.ietf.org> References: <053.639894f29bddd032e710ff634d4068d3@tools.ietf.org> X-Trac-Ticket-ID: 72 In-Reply-To: <053.639894f29bddd032e710ff634d4068d3@tools.ietf.org> X-SA-Exim-Connect-IP: ::1 X-SA-Exim-Rcpt-To: hartke@tzi.org, zach@sensinode.com, core@ietf.org X-SA-Exim-Mail-From: trac@tools.ietf.org X-SA-Exim-Scanned: No (on zinfandel.tools.ietf.org); SAEximRunCond expanded to false Cc: core@ietf.org Subject: Re: [core] coap #72 (closed): Proxy versus Reverse proxy X-BeenThere: core@ietf.org X-Mailman-Version: 2.1.9 List-Id: "Constrained RESTful Environments \(CoRE\) Working Group list" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 21 Jan 2011 16:11:51 -0000 #72: Proxy versus Reverse proxy Changes (by hartke@…): * status: new => closed * resolution: => fixed Comment: Done in coap-04. -- ----------------------------+----------------------------------------------- Reporter: hartke@… | Owner: hartke@… Type: enhancement | Status: closed Priority: minor | Milestone: Component: coap | Version: Severity: - | Resolution: fixed Keywords: | ----------------------------+----------------------------------------------- Ticket URL: core From trac@tools.ietf.org Sat Jan 22 14:13:55 2011 Return-Path: X-Original-To: core@core3.amsl.com Delivered-To: core@core3.amsl.com Received: from localhost (localhost [127.0.0.1]) by core3.amsl.com (Postfix) with ESMTP id 5B06B3A6B4D for ; Sat, 22 Jan 2011 14:13:55 -0800 (PST) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -102.587 X-Spam-Level: X-Spam-Status: No, score=-102.587 tagged_above=-999 required=5 tests=[AWL=0.013, BAYES_00=-2.599, NO_RELAYS=-0.001, USER_IN_WHITELIST=-100] Received: from mail.ietf.org ([64.170.98.32]) by localhost (core3.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id KxD5EuLvDaX4 for ; Sat, 22 Jan 2011 14:13:54 -0800 (PST) Received: from zinfandel.tools.ietf.org (unknown [IPv6:2001:1890:1112:1::2a]) by core3.amsl.com (Postfix) with ESMTP id B58B83A6B4C for ; Sat, 22 Jan 2011 14:13:54 -0800 (PST) Received: from localhost ([::1] helo=zinfandel.tools.ietf.org) by zinfandel.tools.ietf.org with esmtp (Exim 4.72) (envelope-from ) id 1Pgll8-0002ir-MZ; Sat, 22 Jan 2011 14:16:38 -0800 MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 8bit From: "core issue tracker" X-Trac-Version: 0.11.7 Precedence: bulk Auto-Submitted: auto-generated X-Mailer: Trac 0.11.7, by Edgewall Software To: cabo@tzi.org, zach@sensinode.com X-Trac-Project: core Date: Sat, 22 Jan 2011 22:16:38 -0000 X-URL: http://tools.ietf.org/core/ X-Trac-Ticket-URL: http://trac.tools.ietf.org/wg/core/trac/ticket/54#comment:2 Message-ID: <066.f74db495b8ee3f7a6cef745ed095e598@tools.ietf.org> References: <057.c99f346c5afd3fa73502ae8c72aadce9@tools.ietf.org> X-Trac-Ticket-ID: 54 In-Reply-To: <057.c99f346c5afd3fa73502ae8c72aadce9@tools.ietf.org> X-SA-Exim-Connect-IP: ::1 X-SA-Exim-Rcpt-To: cabo@tzi.org, zach@sensinode.com, core@ietf.org X-SA-Exim-Mail-From: trac@tools.ietf.org X-SA-Exim-Scanned: No (on zinfandel.tools.ietf.org); SAEximRunCond expanded to false Cc: core@ietf.org Subject: Re: [core] coap #54 (closed): IPsec and multicast X-BeenThere: core@ietf.org X-Mailman-Version: 2.1.9 List-Id: "Constrained RESTful Environments \(CoRE\) Working Group list" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sat, 22 Jan 2011 22:13:55 -0000 #54: IPsec and multicast Changes (by cabo@…): * status: new => closed * resolution: => wontfix Comment: Some discussion added in coap-04. It appears no good solution can be defined that is fully based on existing security standards of the IETF. -- --------------------------------+------------------------------------------- Reporter: zach@… | Owner: cabo@… Type: task | Status: closed Priority: minor | Milestone: Component: coap | Version: Severity: - | Resolution: wontfix Keywords: | --------------------------------+------------------------------------------- Ticket URL: core From trac@tools.ietf.org Sat Jan 22 14:29:59 2011 Return-Path: X-Original-To: core@core3.amsl.com Delivered-To: core@core3.amsl.com Received: from localhost (localhost [127.0.0.1]) by core3.amsl.com (Postfix) with ESMTP id 6F5AF3A6B5C for ; Sat, 22 Jan 2011 14:29:59 -0800 (PST) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -102.587 X-Spam-Level: X-Spam-Status: No, score=-102.587 tagged_above=-999 required=5 tests=[AWL=0.013, BAYES_00=-2.599, NO_RELAYS=-0.001, USER_IN_WHITELIST=-100] Received: from mail.ietf.org ([64.170.98.32]) by localhost (core3.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id zXEpH4bEiOUd for ; Sat, 22 Jan 2011 14:29:58 -0800 (PST) Received: from zinfandel.tools.ietf.org (unknown [IPv6:2001:1890:1112:1::2a]) by core3.amsl.com (Postfix) with ESMTP id B47F73A6B5B for ; Sat, 22 Jan 2011 14:29:58 -0800 (PST) Received: from localhost ([::1] helo=zinfandel.tools.ietf.org) by zinfandel.tools.ietf.org with esmtp (Exim 4.72) (envelope-from ) id 1Pgm0k-0004iV-Sf; Sat, 22 Jan 2011 14:32:46 -0800 MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 8bit From: "core issue tracker" X-Trac-Version: 0.11.7 Precedence: bulk Auto-Submitted: auto-generated X-Mailer: Trac 0.11.7, by Edgewall Software To: cabo@tzi.org, zach@sensinode.com X-Trac-Project: core Date: Sat, 22 Jan 2011 22:32:46 -0000 X-URL: http://tools.ietf.org/core/ X-Trac-Ticket-URL: http://trac.tools.ietf.org/wg/core/trac/ticket/58#comment:2 Message-ID: <066.e84bc78d5308978f8a5bc2dcda929c3f@tools.ietf.org> References: <057.c926cbbf08febeb5dad3f2eec7273279@tools.ietf.org> X-Trac-Ticket-ID: 58 In-Reply-To: <057.c926cbbf08febeb5dad3f2eec7273279@tools.ietf.org> X-SA-Exim-Connect-IP: ::1 X-SA-Exim-Rcpt-To: cabo@tzi.org, zach@sensinode.com, core@ietf.org X-SA-Exim-Mail-From: trac@tools.ietf.org X-SA-Exim-Scanned: No (on zinfandel.tools.ietf.org); SAEximRunCond expanded to false Cc: core@ietf.org Subject: Re: [core] coap #58 (closed): Define trust model X-BeenThere: core@ietf.org X-Mailman-Version: 2.1.9 List-Id: "Constrained RESTful Environments \(CoRE\) Working Group list" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sat, 22 Jan 2011 22:29:59 -0000 #58: Define trust model Changes (by cabo@…): * status: new => closed * resolution: => fixed Comment: Added some text at the end of the introduction for coap-04. -- --------------------------------+------------------------------------------- Reporter: zach@… | Owner: cabo@… Type: task | Status: closed Priority: minor | Milestone: Component: coap | Version: Severity: - | Resolution: fixed Keywords: | --------------------------------+------------------------------------------- Ticket URL: core From trac@tools.ietf.org Sat Jan 22 14:33:16 2011 Return-Path: X-Original-To: core@core3.amsl.com Delivered-To: core@core3.amsl.com Received: from localhost (localhost [127.0.0.1]) by core3.amsl.com (Postfix) with ESMTP id 6C8683A6B63 for ; Sat, 22 Jan 2011 14:33:16 -0800 (PST) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -102.587 X-Spam-Level: X-Spam-Status: No, score=-102.587 tagged_above=-999 required=5 tests=[AWL=0.013, BAYES_00=-2.599, NO_RELAYS=-0.001, USER_IN_WHITELIST=-100] Received: from mail.ietf.org ([64.170.98.32]) by localhost (core3.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id qHhBVIDX+NQC for ; Sat, 22 Jan 2011 14:33:15 -0800 (PST) Received: from zinfandel.tools.ietf.org (unknown [IPv6:2001:1890:1112:1::2a]) by core3.amsl.com (Postfix) with ESMTP id 0723F3A6B61 for ; Sat, 22 Jan 2011 14:33:15 -0800 (PST) Received: from localhost ([::1] helo=zinfandel.tools.ietf.org) by zinfandel.tools.ietf.org with esmtp (Exim 4.72) (envelope-from ) id 1Pgm3v-0003pg-Tv; Sat, 22 Jan 2011 14:36:03 -0800 MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 8bit From: "core issue tracker" X-Trac-Version: 0.11.7 Precedence: bulk Auto-Submitted: auto-generated X-Mailer: Trac 0.11.7, by Edgewall Software To: cabo@tzi.org, zach@sensinode.com X-Trac-Project: core Date: Sat, 22 Jan 2011 22:36:03 -0000 X-URL: http://tools.ietf.org/core/ X-Trac-Ticket-URL: http://trac.tools.ietf.org/wg/core/trac/ticket/55#comment:5 Message-ID: <066.3a9308d1d7e7ff4a19f71a0b7bd489ad@tools.ietf.org> References: <057.cbcb8082fb49a1a254def976b454a663@tools.ietf.org> X-Trac-Ticket-ID: 55 In-Reply-To: <057.cbcb8082fb49a1a254def976b454a663@tools.ietf.org> X-SA-Exim-Connect-IP: ::1 X-SA-Exim-Rcpt-To: cabo@tzi.org, zach@sensinode.com, core@ietf.org X-SA-Exim-Mail-From: trac@tools.ietf.org X-SA-Exim-Scanned: No (on zinfandel.tools.ietf.org); SAEximRunCond expanded to false Cc: core@ietf.org Subject: Re: [core] coap #55 (closed): AES-CCM vs. AES-CBC X-BeenThere: core@ietf.org X-Mailman-Version: 2.1.9 List-Id: "Constrained RESTful Environments \(CoRE\) Working Group list" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sat, 22 Jan 2011 22:33:16 -0000 #55: AES-CCM vs. AES-CBC Changes (by cabo@…): * status: new => closed * resolution: => fixed Comment: Unfortunately, Tero Kivinen's draft is not yet available. Otherwise, text added to section 10.1 of CoAP-04. -- --------------------------------+------------------------------------------- Reporter: zach@… | Owner: cabo@… Type: enhancement | Status: closed Priority: trivial | Milestone: Component: coap | Version: Severity: - | Resolution: fixed Keywords: | --------------------------------+------------------------------------------- Ticket URL: core From trac@tools.ietf.org Sat Jan 22 14:36:16 2011 Return-Path: X-Original-To: core@core3.amsl.com Delivered-To: core@core3.amsl.com Received: from localhost (localhost [127.0.0.1]) by core3.amsl.com (Postfix) with ESMTP id B97923A6B67 for ; Sat, 22 Jan 2011 14:36:16 -0800 (PST) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -102.588 X-Spam-Level: X-Spam-Status: No, score=-102.588 tagged_above=-999 required=5 tests=[AWL=0.012, BAYES_00=-2.599, NO_RELAYS=-0.001, USER_IN_WHITELIST=-100] Received: from mail.ietf.org ([64.170.98.32]) by localhost (core3.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id 6eP6W-p-pTNJ for ; Sat, 22 Jan 2011 14:36:16 -0800 (PST) Received: from zinfandel.tools.ietf.org (unknown [IPv6:2001:1890:1112:1::2a]) by core3.amsl.com (Postfix) with ESMTP id 0E99D3A6B65 for ; Sat, 22 Jan 2011 14:36:16 -0800 (PST) Received: from localhost ([::1] helo=zinfandel.tools.ietf.org) by zinfandel.tools.ietf.org with esmtp (Exim 4.72) (envelope-from ) id 1Pgm6q-00054v-3U; Sat, 22 Jan 2011 14:39:04 -0800 MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 8bit From: "core issue tracker" X-Trac-Version: 0.11.7 Precedence: bulk Auto-Submitted: auto-generated X-Mailer: Trac 0.11.7, by Edgewall Software To: zach@sensinode.com, cabo@tzi.org, hartke@tzi.org X-Trac-Project: core Date: Sat, 22 Jan 2011 22:39:04 -0000 X-URL: http://tools.ietf.org/core/ X-Trac-Ticket-URL: http://trac.tools.ietf.org/wg/core/trac/ticket/60#comment:2 Message-ID: <066.a471c5bd0a6613fd1caa9f572ab11335@tools.ietf.org> References: <057.b16a799c382877519fb8cb657d149a2b@tools.ietf.org> X-Trac-Ticket-ID: 60 In-Reply-To: <057.b16a799c382877519fb8cb657d149a2b@tools.ietf.org> X-SA-Exim-Connect-IP: ::1 X-SA-Exim-Rcpt-To: zach@sensinode.com, cabo@tzi.org, hartke@tzi.org, core@ietf.org X-SA-Exim-Mail-From: trac@tools.ietf.org X-SA-Exim-Scanned: No (on zinfandel.tools.ietf.org); SAEximRunCond expanded to false Cc: core@ietf.org Subject: Re: [core] coap #60 (closed): Access control and proxy caches X-BeenThere: core@ietf.org X-Mailman-Version: 2.1.9 List-Id: "Constrained RESTful Environments \(CoRE\) Working Group list" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sat, 22 Jan 2011 22:36:16 -0000 #60: Access control and proxy caches Changes (by cabo@…): * status: new => closed * resolution: => fixed Comment: Explanation of core-CoAP working covered by #58. Future extensions might be defined that add functionality here. -- --------------------------------+------------------------------------------- Reporter: zach@… | Owner: zach@… Type: defect | Status: closed Priority: major | Milestone: Component: coap | Version: Severity: - | Resolution: fixed Keywords: | --------------------------------+------------------------------------------- Ticket URL: core From trac@tools.ietf.org Sat Jan 22 14:38:14 2011 Return-Path: X-Original-To: core@core3.amsl.com Delivered-To: core@core3.amsl.com Received: from localhost (localhost [127.0.0.1]) by core3.amsl.com (Postfix) with ESMTP id 03E7D3A6B66 for ; Sat, 22 Jan 2011 14:38:14 -0800 (PST) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -102.588 X-Spam-Level: X-Spam-Status: No, score=-102.588 tagged_above=-999 required=5 tests=[AWL=0.012, BAYES_00=-2.599, NO_RELAYS=-0.001, USER_IN_WHITELIST=-100] Received: from mail.ietf.org ([64.170.98.32]) by localhost (core3.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id rTe+zImsCd4w for ; Sat, 22 Jan 2011 14:38:13 -0800 (PST) Received: from zinfandel.tools.ietf.org (unknown [IPv6:2001:1890:1112:1::2a]) by core3.amsl.com (Postfix) with ESMTP id F00FC3A6B65 for ; Sat, 22 Jan 2011 14:38:12 -0800 (PST) Received: from localhost ([::1] helo=zinfandel.tools.ietf.org) by zinfandel.tools.ietf.org with esmtp (Exim 4.72) (envelope-from ) id 1Pgm8k-0005AC-4Q; Sat, 22 Jan 2011 14:41:02 -0800 MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 8bit From: "core issue tracker" X-Trac-Version: 0.11.7 Precedence: bulk Auto-Submitted: auto-generated X-Mailer: Trac 0.11.7, by Edgewall Software To: cabo@tzi.org, zach@sensinode.com X-Trac-Project: core Date: Sat, 22 Jan 2011 22:41:02 -0000 X-URL: http://tools.ietf.org/core/ X-Trac-Ticket-URL: http://trac.tools.ietf.org/wg/core/trac/ticket/59#comment:2 Message-ID: <066.195437c799c41d5dc45e137b99fc3bbb@tools.ietf.org> References: <057.cbf0bd75bba0dd710f209966e4d26782@tools.ietf.org> X-Trac-Ticket-ID: 59 In-Reply-To: <057.cbf0bd75bba0dd710f209966e4d26782@tools.ietf.org> X-SA-Exim-Connect-IP: ::1 X-SA-Exim-Rcpt-To: cabo@tzi.org, zach@sensinode.com, core@ietf.org X-SA-Exim-Mail-From: trac@tools.ietf.org X-SA-Exim-Scanned: No (on zinfandel.tools.ietf.org); SAEximRunCond expanded to false Cc: core@ietf.org Subject: Re: [core] coap #59 (closed): Assumed device capabilities X-BeenThere: core@ietf.org X-Mailman-Version: 2.1.9 List-Id: "Constrained RESTful Environments \(CoRE\) Working Group list" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sat, 22 Jan 2011 22:38:14 -0000 #59: Assumed device capabilities Changes (by cabo@…): * status: new => closed * resolution: => fixed Comment: Significant text about what we consider general properties of constrained devices is now available in CoAP-04. Specifically with respect to security capabilities, this is covered by new text for #58 and #87. -- --------------------------------+------------------------------------------- Reporter: zach@… | Owner: cabo@… Type: task | Status: closed Priority: trivial | Milestone: Component: coap | Version: Severity: - | Resolution: fixed Keywords: | --------------------------------+------------------------------------------- Ticket URL: core From trac@tools.ietf.org Sat Jan 22 14:52:53 2011 Return-Path: X-Original-To: core@core3.amsl.com Delivered-To: core@core3.amsl.com Received: from localhost (localhost [127.0.0.1]) by core3.amsl.com (Postfix) with ESMTP id 567C13A6B8A for ; Sat, 22 Jan 2011 14:52:53 -0800 (PST) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -102.588 X-Spam-Level: X-Spam-Status: No, score=-102.588 tagged_above=-999 required=5 tests=[AWL=0.012, BAYES_00=-2.599, NO_RELAYS=-0.001, USER_IN_WHITELIST=-100] Received: from mail.ietf.org ([64.170.98.32]) by localhost (core3.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id P+zZNVWzlfr0 for ; Sat, 22 Jan 2011 14:52:52 -0800 (PST) Received: from zinfandel.tools.ietf.org (unknown [IPv6:2001:1890:1112:1::2a]) by core3.amsl.com (Postfix) with ESMTP id 59E7A3A6B88 for ; Sat, 22 Jan 2011 14:52:52 -0800 (PST) Received: from localhost ([::1] helo=zinfandel.tools.ietf.org) by zinfandel.tools.ietf.org with esmtp (Exim 4.72) (envelope-from ) id 1PgmMu-0001RV-Ts; Sat, 22 Jan 2011 14:55:40 -0800 MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 8bit From: "core issue tracker" X-Trac-Version: 0.11.7 Precedence: bulk Auto-Submitted: auto-generated X-Mailer: Trac 0.11.7, by Edgewall Software To: cabo@tzi.org, zach@sensinode.com X-Trac-Project: core Date: Sat, 22 Jan 2011 22:55:40 -0000 X-URL: http://tools.ietf.org/core/ X-Trac-Ticket-URL: http://trac.tools.ietf.org/wg/core/trac/ticket/87#comment:2 Message-ID: <060.ddd020764bed951856ae7aa4acb9502d@tools.ietf.org> References: <051.eeb8059d1ae7e95d8ee7a5d799dbefa1@tools.ietf.org> X-Trac-Ticket-ID: 87 In-Reply-To: <051.eeb8059d1ae7e95d8ee7a5d799dbefa1@tools.ietf.org> X-SA-Exim-Connect-IP: ::1 X-SA-Exim-Rcpt-To: cabo@tzi.org, zach@sensinode.com, core@ietf.org X-SA-Exim-Mail-From: trac@tools.ietf.org X-SA-Exim-Scanned: No (on zinfandel.tools.ietf.org); SAEximRunCond expanded to false Cc: core@ietf.org Subject: Re: [core] coap #87 (closed): DTLS section fixes X-BeenThere: core@ietf.org X-Mailman-Version: 2.1.9 List-Id: "Constrained RESTful Environments \(CoRE\) Working Group list" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sat, 22 Jan 2011 22:52:53 -0000 #87: DTLS section fixes Changes (by cabo@…): * status: new => closed * resolution: => fixed Comment: Fixed in CoAP-04. Further review is, of course, welcome. -- --------------------------------+------------------------------------------- Reporter: cabo@… | Owner: cabo@… Type: defect | Status: closed Priority: major | Milestone: Component: coap | Version: Severity: Active WG Document | Resolution: fixed Keywords: | --------------------------------+------------------------------------------- Ticket URL: core From trac@tools.ietf.org Mon Jan 24 04:15:15 2011 Return-Path: X-Original-To: core@core3.amsl.com Delivered-To: core@core3.amsl.com Received: from localhost (localhost [127.0.0.1]) by core3.amsl.com (Postfix) with ESMTP id 6A3DE3A687B for ; Mon, 24 Jan 2011 04:15:15 -0800 (PST) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -102.588 X-Spam-Level: X-Spam-Status: No, score=-102.588 tagged_above=-999 required=5 tests=[AWL=0.012, BAYES_00=-2.599, NO_RELAYS=-0.001, USER_IN_WHITELIST=-100] Received: from mail.ietf.org ([64.170.98.32]) by localhost (core3.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id VMe3yiIPwld3 for ; Mon, 24 Jan 2011 04:15:14 -0800 (PST) Received: from zinfandel.tools.ietf.org (unknown [IPv6:2001:1890:1112:1::2a]) by core3.amsl.com (Postfix) with ESMTP id 63D1E3A686D for ; Mon, 24 Jan 2011 04:15:14 -0800 (PST) Received: from localhost ([::1] helo=zinfandel.tools.ietf.org) by zinfandel.tools.ietf.org with esmtp (Exim 4.72) (envelope-from ) id 1PhLN2-0003Wi-A0; Mon, 24 Jan 2011 04:18:08 -0800 MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 8bit From: "core issue tracker" X-Trac-Version: 0.11.7 Precedence: bulk Auto-Submitted: auto-generated X-Mailer: Trac 0.11.7, by Edgewall Software To: cabo@tzi.org, hartke@tzi.org X-Trac-Project: core Date: Mon, 24 Jan 2011 12:18:07 -0000 X-URL: http://tools.ietf.org/core/ X-Trac-Ticket-URL: http://trac.tools.ietf.org/wg/core/trac/ticket/32#comment:1 Message-ID: <066.66c4d0c834c01c1260b18f739ac3cdd3@tools.ietf.org> References: <057.c5048ce08a040beee18d2c625df11c1e@tools.ietf.org> X-Trac-Ticket-ID: 32 In-Reply-To: <057.c5048ce08a040beee18d2c625df11c1e@tools.ietf.org> X-SA-Exim-Connect-IP: ::1 X-SA-Exim-Rcpt-To: cabo@tzi.org, hartke@tzi.org, core@ietf.org X-SA-Exim-Mail-From: trac@tools.ietf.org X-SA-Exim-Scanned: No (on zinfandel.tools.ietf.org); SAEximRunCond expanded to false Cc: core@ietf.org Subject: Re: [core] observe #32 (new): Improve abstract and intro X-BeenThere: core@ietf.org X-Mailman-Version: 2.1.9 List-Id: "Constrained RESTful Environments \(CoRE\) Working Group list" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 24 Jan 2011 12:15:15 -0000 #32: Improve abstract and intro Changes (by hartke@…): * owner: zach@… => cabo@… -- --------------------------------+------------------------------------------- Reporter: zach@… | Owner: cabo@… Type: enhancement | Status: new Priority: trivial | Milestone: Component: observe | Version: Severity: - | Keywords: --------------------------------+------------------------------------------- Ticket URL: core From trac@tools.ietf.org Mon Jan 24 04:15:30 2011 Return-Path: X-Original-To: core@core3.amsl.com Delivered-To: core@core3.amsl.com Received: from localhost (localhost [127.0.0.1]) by core3.amsl.com (Postfix) with ESMTP id 7B1473A6858 for ; Mon, 24 Jan 2011 04:15:30 -0800 (PST) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -102.588 X-Spam-Level: X-Spam-Status: No, score=-102.588 tagged_above=-999 required=5 tests=[AWL=0.012, BAYES_00=-2.599, NO_RELAYS=-0.001, USER_IN_WHITELIST=-100] Received: from mail.ietf.org ([64.170.98.32]) by localhost (core3.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id Vk-UVVgpdhl4 for ; Mon, 24 Jan 2011 04:15:29 -0800 (PST) Received: from zinfandel.tools.ietf.org (unknown [IPv6:2001:1890:1112:1::2a]) by core3.amsl.com (Postfix) with ESMTP id D96843A6AC4 for ; Mon, 24 Jan 2011 04:15:29 -0800 (PST) Received: from localhost ([::1] helo=zinfandel.tools.ietf.org) by zinfandel.tools.ietf.org with esmtp (Exim 4.72) (envelope-from ) id 1PhLNI-00042m-Ks; Mon, 24 Jan 2011 04:18:24 -0800 MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 8bit From: "core issue tracker" X-Trac-Version: 0.11.7 Precedence: bulk Auto-Submitted: auto-generated X-Mailer: Trac 0.11.7, by Edgewall Software To: cabo@tzi.org, hartke@tzi.org X-Trac-Project: core Date: Mon, 24 Jan 2011 12:18:24 -0000 X-URL: http://tools.ietf.org/core/ X-Trac-Ticket-URL: http://trac.tools.ietf.org/wg/core/trac/ticket/32#comment:2 Message-ID: <066.11b766246300f8652cfa00d13eaa1893@tools.ietf.org> References: <057.c5048ce08a040beee18d2c625df11c1e@tools.ietf.org> X-Trac-Ticket-ID: 32 In-Reply-To: <057.c5048ce08a040beee18d2c625df11c1e@tools.ietf.org> X-SA-Exim-Connect-IP: ::1 X-SA-Exim-Rcpt-To: cabo@tzi.org, hartke@tzi.org, core@ietf.org X-SA-Exim-Mail-From: trac@tools.ietf.org X-SA-Exim-Scanned: No (on zinfandel.tools.ietf.org); SAEximRunCond expanded to false Cc: core@ietf.org Subject: Re: [core] observe #32 (closed): Improve abstract and intro X-BeenThere: core@ietf.org X-Mailman-Version: 2.1.9 List-Id: "Constrained RESTful Environments \(CoRE\) Working Group list" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 24 Jan 2011 12:15:30 -0000 #32: Improve abstract and intro Changes (by hartke@…): * status: new => closed * resolution: => fixed -- --------------------------------+------------------------------------------- Reporter: zach@… | Owner: cabo@… Type: enhancement | Status: closed Priority: trivial | Milestone: Component: observe | Version: Severity: - | Resolution: fixed Keywords: | --------------------------------+------------------------------------------- Ticket URL: core From trac@tools.ietf.org Mon Jan 24 04:15:59 2011 Return-Path: X-Original-To: core@core3.amsl.com Delivered-To: core@core3.amsl.com Received: from localhost (localhost [127.0.0.1]) by core3.amsl.com (Postfix) with ESMTP id ECE923A686D for ; Mon, 24 Jan 2011 04:15:59 -0800 (PST) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -102.588 X-Spam-Level: X-Spam-Status: No, score=-102.588 tagged_above=-999 required=5 tests=[AWL=0.012, BAYES_00=-2.599, NO_RELAYS=-0.001, USER_IN_WHITELIST=-100] Received: from mail.ietf.org ([64.170.98.32]) by localhost (core3.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id 3yYfing0sgYD for ; Mon, 24 Jan 2011 04:15:59 -0800 (PST) Received: from zinfandel.tools.ietf.org (unknown [IPv6:2001:1890:1112:1::2a]) by core3.amsl.com (Postfix) with ESMTP id 3AD8E3A6858 for ; Mon, 24 Jan 2011 04:15:59 -0800 (PST) Received: from localhost ([::1] helo=zinfandel.tools.ietf.org) by zinfandel.tools.ietf.org with esmtp (Exim 4.72) (envelope-from ) id 1PhLNm-0004mv-1V; Mon, 24 Jan 2011 04:18:54 -0800 MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 8bit From: "core issue tracker" X-Trac-Version: 0.11.7 Precedence: bulk Auto-Submitted: auto-generated X-Mailer: Trac 0.11.7, by Edgewall Software To: cabo@tzi.org, hartke@tzi.org X-Trac-Project: core Date: Mon, 24 Jan 2011 12:18:53 -0000 X-URL: http://tools.ietf.org/core/ X-Trac-Ticket-URL: https://wiki.tools.ietf.org/wg/core/trac/ticket/37#comment:2 Message-ID: <066.9d44fd9ff3b132e7909d1c9fb7727736@tools.ietf.org> References: <057.d76c4fb4eaf8e8db6bc0402562ae16bd@tools.ietf.org> X-Trac-Ticket-ID: 37 In-Reply-To: <057.d76c4fb4eaf8e8db6bc0402562ae16bd@tools.ietf.org> X-SA-Exim-Connect-IP: ::1 X-SA-Exim-Rcpt-To: cabo@tzi.org, hartke@tzi.org, core@ietf.org X-SA-Exim-Mail-From: trac@tools.ietf.org X-SA-Exim-Scanned: No (on zinfandel.tools.ietf.org); SAEximRunCond expanded to false Cc: core@ietf.org Subject: Re: [core] observe #37 (closed): Section on complimentary sub/pub REST frameworks X-BeenThere: core@ietf.org X-Mailman-Version: 2.1.9 List-Id: "Constrained RESTful Environments \(CoRE\) Working Group list" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 24 Jan 2011 12:16:00 -0000 #37: Section on complimentary sub/pub REST frameworks Changes (by hartke@…): * status: new => closed * resolution: => fixed -- --------------------------------+------------------------------------------- Reporter: zach@… | Owner: cabo@… Type: enhancement | Status: closed Priority: minor | Milestone: Component: observe | Version: Severity: - | Resolution: fixed Keywords: | --------------------------------+------------------------------------------- Ticket URL: core From Internet-Drafts@ietf.org Mon Jan 24 04:45:02 2011 Return-Path: X-Original-To: core@core3.amsl.com Delivered-To: core@core3.amsl.com Received: from localhost (localhost [127.0.0.1]) by core3.amsl.com (Postfix) with ESMTP id 6A4A53A6874; Mon, 24 Jan 2011 04:45:02 -0800 (PST) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -102.448 X-Spam-Level: X-Spam-Status: No, score=-102.448 tagged_above=-999 required=5 tests=[AWL=0.151, BAYES_00=-2.599, USER_IN_WHITELIST=-100] Received: from mail.ietf.org ([64.170.98.32]) by localhost (core3.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id D3Ese1m30MiX; Mon, 24 Jan 2011 04:45:01 -0800 (PST) Received: from [127.0.0.1] (localhost [127.0.0.1]) by core3.amsl.com (Postfix) with ESMTP id 8A0E73A6839; Mon, 24 Jan 2011 04:45:01 -0800 (PST) MIME-Version: 1.0 Content-Type: Multipart/Mixed; Boundary="NextPart" From: Internet-Drafts@ietf.org To: i-d-announce@ietf.org X-Test-IDTracker: no X-IETF-IDTracker: 3.10 Message-ID: <20110124124501.8453.63428.idtracker@localhost> Date: Mon, 24 Jan 2011 04:45:01 -0800 Cc: core@ietf.org Subject: [core] I-D Action:draft-ietf-core-coap-04.txt X-BeenThere: core@ietf.org X-Mailman-Version: 2.1.9 Precedence: list List-Id: "Constrained RESTful Environments \(CoRE\) Working Group list" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 24 Jan 2011 12:45:02 -0000 --NextPart A New Internet-Draft is available from the on-line Internet-Drafts directories. This draft is a work item of the Constrained RESTful Environments Working Group of the IETF. Title : Constrained Application Protocol (CoAP) Author(s) : Z. Shelby, et al. Filename : draft-ietf-core-coap-04.txt Pages : 75 Date : 2011-01-24 This document specifies the Constrained Application Protocol (CoAP), a specialized web transfer protocol for use with constrained networks and nodes for machine-to-machine applications such as smart energy and building automation. These constrained nodes often have 8-bit microcontrollers with small amounts of ROM and RAM, while networks such as 6LoWPAN often have high packet error rates and a typical throughput of 10s of kbit/s. CoAP provides a method/response interaction model between application end-points, supports built-in resource discovery, and includes key web concepts such as URIs and content-types. CoAP easily translates to HTTP for integration with the web while meeting specialized requirements such as multicast support, very low overhead and simplicity for constrained environments. A URL for this Internet-Draft is: http://www.ietf.org/internet-drafts/draft-ietf-core-coap-04.txt Internet-Drafts are also available by anonymous FTP at: ftp://ftp.ietf.org/internet-drafts/ Below is the data which will enable a MIME compliant mail reader implementation to automatically retrieve the ASCII version of the Internet-Draft. --NextPart Content-Type: Message/External-body; name="draft-ietf-core-coap-04.txt"; site="ftp.ietf.org"; access-type="anon-ftp"; directory="internet-drafts" Content-Type: text/plain Content-ID: <2011-01-24044119.I-D@ietf.org> --NextPart-- From zach@sensinode.com Mon Jan 24 04:49:28 2011 Return-Path: X-Original-To: core@core3.amsl.com Delivered-To: core@core3.amsl.com Received: from localhost (localhost [127.0.0.1]) by core3.amsl.com (Postfix) with ESMTP id 2A1B23A6873 for ; Mon, 24 Jan 2011 04:49:28 -0800 (PST) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -3.494 X-Spam-Level: X-Spam-Status: No, score=-3.494 tagged_above=-999 required=5 tests=[AWL=0.105, BAYES_00=-2.599, RCVD_IN_DNSWL_LOW=-1] Received: from mail.ietf.org ([64.170.98.32]) by localhost (core3.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id DjPZub5+htO2 for ; Mon, 24 Jan 2011 04:49:26 -0800 (PST) Received: from auth-smtp.nebula.fi (auth-smtp.nebula.fi [217.30.180.105]) by core3.amsl.com (Postfix) with ESMTP id E61E53A6875 for ; Mon, 24 Jan 2011 04:49:25 -0800 (PST) Received: from [62.145.172.52] ([62.145.172.52]) (authenticated bits=0) by auth-smtp.nebula.fi (8.13.4/8.13.4) with ESMTP id p0OCqGei025852 (version=TLSv1/SSLv3 cipher=AES128-SHA bits=128 verify=NO) for ; Mon, 24 Jan 2011 14:52:16 +0200 From: Zach Shelby Content-Type: multipart/signed; boundary=Apple-Mail-260--261242162; protocol="application/pkcs7-signature"; micalg=sha1 Date: Mon, 24 Jan 2011 14:52:17 +0200 References: <20110124124119.A32A43A6875@core3.amsl.com> To: core WG Message-Id: Mime-Version: 1.0 (Apple Message framework v1082) X-Mailer: Apple Mail (2.1082) Subject: [core] New Version Notification for draft-ietf-core-coap-04 X-BeenThere: core@ietf.org X-Mailman-Version: 2.1.9 Precedence: list List-Id: "Constrained RESTful Environments \(CoRE\) Working Group list" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 24 Jan 2011 12:49:28 -0000 --Apple-Mail-260--261242162 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset=us-ascii http://www.ietf.org/internet-drafts/draft-ietf-core-coap-04.txt Today we completed the -04 release of CoAP, which closes all known = issues. Although we are a few weeks late on this release, the author = team worked extremely hard on closing 25 tickets and made countless = editorial improvements (special thanks to Klaus and Carsten). We now = hope this document can be considered a complete specification. Although = the vast majority of coap-04 tickets were editorial, some tickets did = require technical changes that implementors should be aware of: - Max-Age length now 0-4 bytes - Token length now 0-8 bytes - New response codes (now base 32) - New Proxy-Uri option for proxy requests - Greatly improved HTTP mapping section - Uri-Path and Location-Path options now segmented The complete list of changes can be found from Appendix D of the draft.=20= Regards, Zach et. al Begin forwarded message: > From: IETF I-D Submission Tool > Date: January 24, 2011 2:41:19 PM GMT+02:00 > To: zach@sensinode.com > Cc: hartke@tzi.org, cabo@tzi.org, brian@skyfoundry.com > Subject: New Version Notification for draft-ietf-core-coap-04=20 >=20 >=20 > A new version of I-D, draft-ietf-core-coap-04.txt has been = successfully submitted by Zach Shelby and posted to the IETF repository. >=20 > Filename: draft-ietf-core-coap > Revision: 04 > Title: Constrained Application Protocol (CoAP) > Creation_date: 2011-01-24 > WG ID: core > Number_of_pages: 75 >=20 > Abstract: > This document specifies the Constrained Application Protocol (CoAP), > a specialized web transfer protocol for use with constrained networks > and nodes for machine-to-machine applications such as smart energy > and building automation. These constrained nodes often have 8-bit > microcontrollers with small amounts of ROM and RAM, while networks > such as 6LoWPAN often have high packet error rates and a typical > throughput of 10s of kbit/s. CoAP provides a method/response > interaction model between application end-points, supports built-in > resource discovery, and includes key web concepts such as URIs and > content-types. CoAP easily translates to HTTP for integration with > the web while meeting specialized requirements such as multicast > support, very low overhead and simplicity for constrained > environments. >=20 >=20 >=20 > The IETF Secretariat. >=20 >=20 --=20 Zach Shelby, Chief Nerd, Sensinode Ltd. http://zachshelby.org - My blog "On the Internet of Things" http://6lowpan.net - My book "6LoWPAN: The Wireless Embedded Internet" Mobile: +358 40 7796297 --Apple-Mail-260--261242162 Content-Disposition: attachment; filename=smime.p7s Content-Type: application/pkcs7-signature; name=smime.p7s Content-Transfer-Encoding: base64 MIAGCSqGSIb3DQEHAqCAMIACAQExCzAJBgUrDgMCGgUAMIAGCSqGSIb3DQEHAQAAoIIKGzCCBMww ggQ1oAMCAQICEByunWua9OYvIoqj2nRhbB4wDQYJKoZIhvcNAQEFBQAwXzELMAkGA1UEBhMCVVMx FzAVBgNVBAoTDlZlcmlTaWduLCBJbmMuMTcwNQYDVQQLEy5DbGFzcyAxIFB1YmxpYyBQcmltYXJ5 IENlcnRpZmljYXRpb24gQXV0aG9yaXR5MB4XDTA1MTAyODAwMDAwMFoXDTE1MTAyNzIzNTk1OVow 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Received: from localhost (localhost [127.0.0.1]) by core3.amsl.com (Postfix) with ESMTP id 0EC383A6875 for ; Mon, 24 Jan 2011 04:52:52 -0800 (PST) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -106.393 X-Spam-Level: X-Spam-Status: No, score=-106.393 tagged_above=-999 required=5 tests=[AWL=-0.144, BAYES_00=-2.599, HELO_EQ_DE=0.35, RCVD_IN_DNSWL_MED=-4, USER_IN_WHITELIST=-100] Received: from mail.ietf.org ([64.170.98.32]) by localhost (core3.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id 5+GP+aV3+7Xi for ; Mon, 24 Jan 2011 04:52:51 -0800 (PST) Received: from informatik.uni-bremen.de (mailhost.informatik.uni-bremen.de [IPv6:2001:638:708:30c9::12]) by core3.amsl.com (Postfix) with ESMTP id AE7953A6873 for ; Mon, 24 Jan 2011 04:52:50 -0800 (PST) X-Virus-Scanned: amavisd-new at informatik.uni-bremen.de Received: from smtp-fb3.informatik.uni-bremen.de (smtp-fb3.informatik.uni-bremen.de [134.102.224.120]) by informatik.uni-bremen.de (8.14.3/8.14.3) with ESMTP id p0OCtbio017309 for ; Mon, 24 Jan 2011 13:55:37 +0100 (CET) Received: from [192.168.217.101] (p5489FF28.dip.t-dialin.net [84.137.255.40]) (using TLSv1 with cipher AES128-SHA (128/128 bits)) (No client certificate requested) by smtp-fb3.informatik.uni-bremen.de (Postfix) with ESMTPSA id 9ECC5353; Mon, 24 Jan 2011 13:55:37 +0100 (CET) Mime-Version: 1.0 (Apple Message framework v1082) Content-Type: text/plain; charset=us-ascii From: Carsten Bormann In-Reply-To: <7925360F-9E9E-41F8-8053-9AF6F244C7A9@tzi.org> Date: Mon, 24 Jan 2011 13:56:01 +0100 Content-Transfer-Encoding: quoted-printable Message-Id: <2C8F5968-9EB5-495D-A296-AB96B0E8E5A8@tzi.org> References: <7925360F-9E9E-41F8-8053-9AF6F244C7A9@tzi.org> To: Constrained RESTful Environments WG X-Mailer: Apple Mail (2.1082) Subject: [core] CoRE WG webex call on Jan 26, 1500 UTC X-BeenThere: core@ietf.org X-Mailman-Version: 2.1.9 Precedence: list List-Id: "Constrained RESTful Environments \(CoRE\) Working Group list" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 24 Jan 2011 12:52:52 -0000 This is a reminder that our next WG webex call is this Wednesday, Jan = 26. As we decided to stick with a constant 1500 UTC time, the time for the call is: 0700 PST =3D 1000 EST =3D 1500 UTC =3D 1600 CET =3D=20 1700 EET =3D 2300 China =3D 2400 Japan/Korea You may have noticed the tickets draining on core CoAP and Block. = Indeed, coap-04 and block-01 are likely to be submitted today (with = observe-01 right on their heels, but maybe not in time for the phone = call). So I think we should spend a good part of the time discussing whether = these are ready for WGLC. We also should have a quick look at the agenda for Prague. Do we have any other contributions we should discuss on Wednesday? (I might have a bit of a difficult time dialing in as I'm going to be at = a conference, but will try to be there. Please go ahead with the call even if I'm not there initially. Please = do find someone to take notes.) Gruesse, Carsten From behcetsarikaya@yahoo.com Mon Jan 24 09:44:16 2011 Return-Path: X-Original-To: core@core3.amsl.com Delivered-To: core@core3.amsl.com Received: from localhost (localhost [127.0.0.1]) by core3.amsl.com (Postfix) with ESMTP id EE7323A6918 for ; Mon, 24 Jan 2011 09:44:15 -0800 (PST) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -0.94 X-Spam-Level: X-Spam-Status: No, score=-0.94 tagged_above=-999 required=5 tests=[AWL=-0.941, BAYES_50=0.001] Received: from mail.ietf.org ([64.170.98.32]) by localhost (core3.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id cjtyM5pNwuvW for ; Mon, 24 Jan 2011 09:44:15 -0800 (PST) Received: from nm9-vm0.bullet.mail.sp2.yahoo.com (nm9-vm0.bullet.mail.sp2.yahoo.com [98.139.91.196]) by core3.amsl.com (Postfix) with SMTP id 2EF863A68F8 for ; Mon, 24 Jan 2011 09:44:15 -0800 (PST) Received: from [98.139.91.62] by nm9.bullet.mail.sp2.yahoo.com with NNFMP; 24 Jan 2011 17:47:10 -0000 Received: from [98.139.91.7] by tm2.bullet.mail.sp2.yahoo.com with NNFMP; 24 Jan 2011 17:47:10 -0000 Received: from [127.0.0.1] by omp1007.mail.sp2.yahoo.com with NNFMP; 24 Jan 2011 17:47:10 -0000 X-Yahoo-Newman-Property: ymail-3 X-Yahoo-Newman-Id: 670797.57462.bm@omp1007.mail.sp2.yahoo.com Received: (qmail 360 invoked by uid 60001); 24 Jan 2011 17:47:10 -0000 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=yahoo.com; s=s1024; t=1295891230; bh=hz0LppAwxCBgmt1OCxq7qtr4n08KTFXJUDL3Qtywb3A=; h=Message-ID:X-YMail-OSG:Received:X-Mailer:Date:From:Reply-To:Subject:To:MIME-Version:Content-Type; b=QXNI/renKADSHbmcWLJRSl6kchMwBf09bdBNhaIgfWizQ67biIFwaBzc71zzO3UNxcaalFurGjcJ9laAyJD7mlLnotH1Ib0aMFvFLMwa7KQsGDmskAZ+hcddlha8BBF1B25IRsJUe5tULGgMRscNGVH+eK4dwjvRNwbYLJac5DA= DomainKey-Signature: a=rsa-sha1; q=dns; c=nofws; s=s1024; d=yahoo.com; h=Message-ID:X-YMail-OSG:Received:X-Mailer:Date:From:Reply-To:Subject:To:MIME-Version:Content-Type; b=shycDF7+2x53rVA1evv/Zlwxu/oYTv0J7ngFnD1Cm6JnaKML3LyYugrsoYRHoM5svNOQ/lS5+/NIzao9Dh66zrKC4bk/8C9RD+7dsNBr37vLS1Z7ROQFyBP2VKyh36aNfNFWGKQqeDZ8rraUcgqw/vHQuiPM2a22zYtrV5kTHeU=; Message-ID: <19878.85045.qm@web111404.mail.gq1.yahoo.com> X-YMail-OSG: AU6gyTgVM1m20_2y1MslPiD8pQ7RlqKy73ChzQmJBkZKOol sODNU5AMTqBiCF.iJQdtqEsNei3wYM05xmvqyHaiKQDtMU9EAlX9GdFBVIu. PWj4HsWftzRPye7o8OEGc.Ak.Q1kBgfB8tiQFXPzp11Gk.5bjEQMyDyMp9aV ITvvA51l520Rt8Na.jIZjj2dk5h6adFHmrZE_MuRMKb.99GUG5lh6VLAhqm8 0r.EsnUB1e8gnTgx9zYdsvUIXdTYOAhP6a0O5lUMAq1UbUH02kSAtbAmFrHZ ugOLGFthSU4YekivLmjFy6_Pjr_1.OsN2O4W2dju0v_gqA3Gufx7Vx2d3m_P RyX3FHZNOrTpMzMpL22o3mCTTCQgFBetJd2aTHgqGVa9VOaP3XuTikkj7zSh Qi_T4D435DB4- Received: from [206.16.17.212] by web111404.mail.gq1.yahoo.com via HTTP; Mon, 24 Jan 2011 09:47:09 PST X-Mailer: YahooMailRC/555 YahooMailWebService/0.8.107.285259 Date: Mon, 24 Jan 2011 09:47:09 -0800 (PST) From: Behcet Sarikaya To: core MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Subject: [core] Security bootstrapping draft new version X-BeenThere: core@ietf.org X-Mailman-Version: 2.1.9 Precedence: list Reply-To: Behcet Sarikaya List-Id: "Constrained RESTful Environments \(CoRE\) Working Group list" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 24 Jan 2011 17:44:16 -0000 Has been submitted can be found at: http://tools.ietf.org/id/draft-sarikaya-core-sbootstrapping-01.txt Regards, Behcet From cabo@tzi.org Mon Jan 24 09:52:48 2011 Return-Path: X-Original-To: core@core3.amsl.com Delivered-To: core@core3.amsl.com Received: from localhost (localhost [127.0.0.1]) by core3.amsl.com (Postfix) with ESMTP id 8A6CD3A6926 for ; Mon, 24 Jan 2011 09:52:48 -0800 (PST) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -106.387 X-Spam-Level: X-Spam-Status: No, score=-106.387 tagged_above=-999 required=5 tests=[AWL=-0.138, BAYES_00=-2.599, HELO_EQ_DE=0.35, RCVD_IN_DNSWL_MED=-4, USER_IN_WHITELIST=-100] Received: from mail.ietf.org ([64.170.98.32]) by localhost (core3.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id JwejJjqy-PVR for ; Mon, 24 Jan 2011 09:52:46 -0800 (PST) Received: from informatik.uni-bremen.de (mailhost.informatik.uni-bremen.de [IPv6:2001:638:708:30c9::12]) by core3.amsl.com (Postfix) with ESMTP id 5F65B3A6403 for ; Mon, 24 Jan 2011 09:52:45 -0800 (PST) X-Virus-Scanned: amavisd-new at informatik.uni-bremen.de Received: from smtp-fb3.informatik.uni-bremen.de (smtp-fb3.informatik.uni-bremen.de [134.102.224.120]) by informatik.uni-bremen.de (8.14.3/8.14.3) with ESMTP id p0OHtUnZ013804; Mon, 24 Jan 2011 18:55:30 +0100 (CET) Received: from [192.168.217.112] (p5489FF28.dip.t-dialin.net [84.137.255.40]) (using TLSv1 with cipher AES128-SHA (128/128 bits)) (No client certificate requested) by smtp-fb3.informatik.uni-bremen.de (Postfix) with ESMTPSA id 3526E56C; Mon, 24 Jan 2011 18:55:30 +0100 (CET) Mime-Version: 1.0 (Apple Message framework v1082) Content-Type: text/plain; charset=us-ascii From: Carsten Bormann In-Reply-To: <19878.85045.qm@web111404.mail.gq1.yahoo.com> Date: Mon, 24 Jan 2011 18:55:53 +0100 Content-Transfer-Encoding: quoted-printable Message-Id: <95BB6DC7-8B21-4DF2-B713-CEFC5BA840C3@tzi.org> References: <19878.85045.qm@web111404.mail.gq1.yahoo.com> To: Behcet Sarikaya X-Mailer: Apple Mail (2.1082) Cc: core Subject: Re: [core] Security bootstrapping draft new version X-BeenThere: core@ietf.org X-Mailman-Version: 2.1.9 Precedence: list List-Id: "Constrained RESTful Environments \(CoRE\) Working Group list" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 24 Jan 2011 17:52:49 -0000 > http://tools.ietf.org/id/draft-sarikaya-core-sbootstrapping-01.txt Thanks Behcet (and the other authors). It appears that the revision mainly adds the recommissioning = requirement, which we seemed to have some input on in Beijing. Given that, I gather we won't need time on Wednesday to discuss the = update? Gruesse, Carsten PS.: For those not well-versed in the tools site: A diff can be viewed = at: = http://tools.ietf.org/rfcdiff?url2=3Ddraft-sarikaya-core-sbootstrapping-01= .txt From Akbar.Rahman@InterDigital.com Mon Jan 24 21:32:45 2011 Return-Path: X-Original-To: core@core3.amsl.com Delivered-To: core@core3.amsl.com Received: from localhost (localhost [127.0.0.1]) by core3.amsl.com (Postfix) with ESMTP id EEF063A6A46 for ; Mon, 24 Jan 2011 21:32:43 -0800 (PST) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -2.134 X-Spam-Level: X-Spam-Status: No, score=-2.134 tagged_above=-999 required=5 tests=[AWL=0.465, BAYES_00=-2.599] Received: from mail.ietf.org ([64.170.98.32]) by localhost (core3.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id zYFJMFfGwShq for ; Mon, 24 Jan 2011 21:32:39 -0800 (PST) Received: from idcout.InterDigital.com (idcexmail.interdigital.com [12.32.197.135]) by core3.amsl.com (Postfix) with ESMTP id 4B6F63A6A44 for ; Mon, 24 Jan 2011 21:32:39 -0800 (PST) Received: from SAM.InterDigital.com ([10.30.2.11]) by idcout.InterDigital.com with Microsoft SMTPSVC(6.0.3790.4675); Tue, 25 Jan 2011 00:35:35 -0500 X-MimeOLE: Produced By Microsoft Exchange V6.5 Content-class: urn:content-classes:message MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Date: Tue, 25 Jan 2011 00:35:34 -0500 Message-ID: X-MS-Has-Attach: X-MS-TNEF-Correlator: Thread-Topic: [core] WGLC for draft-ietf-core-link-format-02 Thread-Index: AcuybxTMQbwQAEM8Q7mF/KMRZrN19gJ3F+8B References: <91473B88-3BDF-404D-947C-A717A3399243@cisco.com> From: "Rahman, Akbar" To: "Cullen Jennings" , "core WG" X-OriginalArrivalTime: 25 Jan 2011 05:35:35.0418 (UTC) FILETIME=[B0C3B5A0:01CBBC51] Subject: Re: [core] WGLC for draft-ietf-core-link-format-02 X-BeenThere: core@ietf.org X-Mailman-Version: 2.1.9 Precedence: list List-Id: "Constrained RESTful Environments \(CoRE\) Working Group list" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 25 Jan 2011 05:32:45 -0000 Hi Cullen/Carsten, =20 =20 I read the draft and think it is in good shape, and I support passing of = the working group last call for the draft. I did, however, have some = questions and comments on the draft as follows: =20 =20 1) The draft refers to RFC5988 (Web Linking) for the original definition = of Link Header. In that RFC, the Link Header field is clearly defined = in, for example, section 5 of the RFC. This draft takes RFC5988 = definition of Link Header and adapts it for CORE. But some important = points in this adaptation and extension of Link Headers were not totally = clear to me. For example, do the cardinality rules of Link Headers from = RFC5988 still apply to CORE? A general suggestion would be to clarify = section 2 of this draft to better explain the principles of how Link = Format is used in CORE. =20 =20 2) Some good examples of how the CORE Link Format is embedded in the = payload are given in section 4. =20 But some normative text should be added to specify precisely how the = Link Format delimited and identified in the payload. =20 =20 Nits: =20 3) If the CORE Link Format is embedded in the payload why is there a = need to register for the "hosts" relation type in section 6.2? (I'm = probably missing something obvious here.) =20 4) Shouldn't "RFC 5785" be a normative reference? =20 =20 Sincerely, =20 =20 Akbar ________________________________ From: core-bounces@ietf.org on behalf of Cullen Jennings Sent: Wed 1/12/2011 10:42 AM To: core WG Subject: [core] WGLC for draft-ietf-core-link-format-02 I would like to start the working group last call for = draft-ietf-core-link-format-02. Please review the draft and send = comments to list by the end of the day Jan 26. If you review the draft = and have no comments, send an email to the list or to the chairs so we = have an idea of how much review the draft received. The draft is at = http://tools.ietf.org/html/draft-ietf-core-link-format-02 Thank you, Cullen & Carsten _______________________________________________ core mailing list core@ietf.org https://www.ietf.org/mailman/listinfo/core From prvs=1006A469FE=guido.moritz@uni-rostock.de Tue Jan 25 01:54:32 2011 Return-Path: X-Original-To: core@core3.amsl.com Delivered-To: core@core3.amsl.com Received: from localhost (localhost [127.0.0.1]) by core3.amsl.com (Postfix) with ESMTP id 089313A6990 for ; Tue, 25 Jan 2011 01:54:32 -0800 (PST) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -1.683 X-Spam-Level: X-Spam-Status: No, score=-1.683 tagged_above=-999 required=5 tests=[AWL=0.566, BAYES_00=-2.599, DOS_OUTLOOK_TO_MX=1, HELO_EQ_DE=0.35, RCVD_IN_DNSWL_LOW=-1] Received: from mail.ietf.org ([64.170.98.32]) by localhost (core3.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id uYRpYfl2BSAa for ; Tue, 25 Jan 2011 01:54:30 -0800 (PST) Received: from mailrelay1.uni-rostock.de (mailrelay1.uni-rostock.de [139.30.8.201]) by core3.amsl.com (Postfix) with ESMTP id 487B93A6954 for ; Tue, 25 Jan 2011 01:54:29 -0800 (PST) From: Guido Moritz To: 'core' Date: Tue, 25 Jan 2011 10:57:37 +0100 Message-ID: <003701cbbc76$4c05c340$e41149c0$@uni-rostock.de> MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable X-Mailer: Microsoft Outlook 14.0 Thread-Index: Acu8bs6OGR2vWCNQQPuiX7+AgbZmmA== Content-Language: de Subject: [core] CoAP 04 Feedback X-BeenThere: core@ietf.org X-Mailman-Version: 2.1.9 Precedence: list List-Id: "Constrained RESTful Environments \(CoRE\) Working Group list" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 25 Jan 2011 09:54:32 -0000 Dear authors, I am happy to see CoAP-04 out and it seems in a good shape...thanks for = the authors and the work they have done! Nevertheless, some critical points: 1) Own Options I would be interested in more details how to proceed with own CoAP = options as it is mentioned in 04 briefly only. What made HTTP applicable in = several of applications is the extendibility of the header with own fields. But since CoAP is binary, overlapping header definitions might become a = serious problem (I have in mind huge networks running CoAP requiring several different extensions). What is the plan to prevent this? Do I need to go through IANA each time? 2) Ignore Duplicates I know that there has been a similar discussion, but I would be happy if there is a more clear definition which messages will be ignored. = Something like: "If the same Message ID is received, process only the first one = and ignore the others". Or couple the defined procedure on the used method?! This is just a question of a clear definition how to implement CoAP. 3) "Empty" messages I stumbled over the "empty" message in e.g. section 4.3.1 and 4.3.2. It = may be interpreted that "empty" means no payload and thus the mentioned = sections make no sense at all. Maybe a clear definition of an empty message in section 2.1 would relax this. 4) Response Codes I don't really like the definition that 2.00 OK is only possible for a = GET. What is the general intention to limit the response codes on single = methods, especially the most generic code 2.00 OK? I have a scenario in mind = where a POST request is processed and may result in a merge of two resources to = one. Hence one is created, two are deleted. I can do this in two or more = request, but I would like to use one. So DELETED and CREATED are not appropriate = and I would like to have an OK by the server if everything is fine...but = this was a POST and not a GET. There may be more scenarios were a simple OK = is the most reasonable response.=20 5) Message Size I still don't like the definition of message size (section 3.1), because = it refers too much to the IP layer and too much to the link layer sizes (especially in case of CoAP is carried over IPv4). This is a very heavy cross layering and I am not sure if implementers of applications are = always aware of this and the implications. Additionally I am still not sure = about the term "IP datagram" as "datagram" is defined by ISO as term for = transport layer (i.e. UDP). Because CoAP is based on UDP, maybe a better definition would be "A CoAP message MUST fit in a single UDP datagram".=20 Additionally there might be separate definitions like: "If running over IPv4, IP fragmentation MAY be avoided and SHOULD be avoided if carried = over IPv6". This lightens these definitions a bit and especially as IPv4 has = (as far as I know) no clear definition of a minimum MTU like IPv6. = Nevertheless I am not sure why such an IP layer definition is required at all (again = as far as I know IPv6 requires fragmentation as MUST) and it also might be replaced by "SHOULD not exceed 1280 byte". Such a numerical definition = is much clearer. (BTW: The definition of a "good upper bound" does not relax the = obscurities in this section) Mit freundlichen Gr=FCssen Guido Moritz ------------------------- Dipl. Ing. Guido Moritz Universitaet Rostock, Fakultaet f. Informatik und Elektrotechnik Institut f. Angewandte Mikroelektronik und Datentechnik University of Rostock, Department of CS and EE Institute of Applied Microelectronics and Computer Engineering Richard-Wagner Str. 31, 18119 Rostock-Warnemuende Phone:=A0 +49 (0)381 498 - 7269 http://www.imd.uni-rostock.de http://www.ws4d.org http://www.aal-rostock.de From esko.dijk@philips.com Tue Jan 25 02:15:54 2011 Return-Path: X-Original-To: core@core3.amsl.com Delivered-To: core@core3.amsl.com Received: from localhost (localhost [127.0.0.1]) by core3.amsl.com (Postfix) with ESMTP id EC7DD3A6990 for ; Tue, 25 Jan 2011 02:15:54 -0800 (PST) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -6.599 X-Spam-Level: X-Spam-Status: No, score=-6.599 tagged_above=-999 required=5 tests=[BAYES_00=-2.599, RCVD_IN_DNSWL_MED=-4] Received: from mail.ietf.org ([64.170.98.32]) by localhost (core3.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id NtheaTLbpdKk for ; Tue, 25 Jan 2011 02:15:54 -0800 (PST) Received: from ch1outboundpool.messaging.microsoft.com (ch1outboundpool.messaging.microsoft.com [157.55.116.159]) by core3.amsl.com (Postfix) with ESMTP id 08D9E3A6834 for ; Tue, 25 Jan 2011 02:15:54 -0800 (PST) Received: from mail70-ch1-R.bigfish.com (216.32.181.170) by CH1EHSOBE001.bigfish.com (10.43.70.51) with Microsoft SMTP Server id 14.1.225.8; Tue, 25 Jan 2011 10:18:49 +0000 Received: from mail70-ch1 (localhost.localdomain [127.0.0.1]) by mail70-ch1-R.bigfish.com (Postfix) with ESMTP id 799661340238; Tue, 25 Jan 2011 10:18:49 +0000 (UTC) X-SpamScore: -39 X-BigFish: VPS-39(zz15d6O9251J542N217bLzz1202hzz8275bh8275dh1033ILz2dh2a8h668h61h) X-Spam-TCS-SCL: 0:0 X-Forefront-Antispam-Report: KIP:(null); UIP:(null); IPVD:NLI; H:NLHILEXE03.CONNECT1.LOCAL; RD:smtpx.philips.com; EFVD:NLI Received: from mail70-ch1 (localhost.localdomain [127.0.0.1]) by mail70-ch1 (MessageSwitch) id 1295950729157023_11690; Tue, 25 Jan 2011 10:18:49 +0000 (UTC) Received: from CH1EHSMHS012.bigfish.com (snatpool1.int.messaging.microsoft.com [10.43.68.247]) by mail70-ch1.bigfish.com (Postfix) with ESMTP id 19EFA144004F; Tue, 25 Jan 2011 10:18:49 +0000 (UTC) Received: from NLHILEXE03.CONNECT1.LOCAL (168.87.56.20) by CH1EHSMHS012.bigfish.com (10.43.70.12) with Microsoft SMTP Server (TLS) id 14.1.225.8; Tue, 25 Jan 2011 10:18:48 +0000 Received: from NLHILEXH03.connect1.local (172.16.153.78) by connect1.philips.com (172.16.156.152) with Microsoft SMTP Server (TLS) id 8.3.106.1; Tue, 25 Jan 2011 11:18:47 +0100 Received: from NLCLUEXM03.connect1.local ([172.16.157.42]) by NLHILEXH03.connect1.local ([172.16.153.78]) with mapi; Tue, 25 Jan 2011 11:18:47 +0100 From: "Dijk, Esko" To: Cullen Jennings , "core@ietf.org" Date: Tue, 25 Jan 2011 11:18:46 +0100 Thread-Topic: [core] WGLC for draft-ietf-core-link-format-02 Thread-Index: Acuybw9W79fiyHAvQPKUOzb+ZtI7iwKCBSmw Message-ID: References: <91473B88-3BDF-404D-947C-A717A3399243@cisco.com> In-Reply-To: <91473B88-3BDF-404D-947C-A717A3399243@cisco.com> Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: acceptlanguage: en-US Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 X-OriginatorOrg: philips.com Subject: Re: [core] WGLC for draft-ietf-core-link-format-02 X-BeenThere: core@ietf.org X-Mailman-Version: 2.1.9 Precedence: list List-Id: "Constrained RESTful Environments \(CoRE\) Working Group list" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 25 Jan 2011 10:15:55 -0000 Dear Cullen and Carsten, I have read the draft and I noticed one potential issue, in the description= s of filtering. Section 3.1 states: "If the decoded query-pattern does not end with "*", a link value matches t= he query only if the value of the attribute or URI-reference denoted by the= resource-param is bytewise identical to the query-pattern". In other words, a query without using "*" only finds values that equal the = query-pattern. Then the paragraph below this text states "... An implementation supporting filtering MUST return only those entries = for which the value of the link attribute identified by the resource-param= contains the query-pattern as a substring." In other words, a query will return entries based on substring matching, so= not necessarily bytewise identical. This seemingly contradicts the previou= s text. Also this sentence probably should take into account that querying = can be done with/without wildcard "*" - the two cases cause different match= ing behavior. best regards, Esko Dijk Philips Corporate Technologies, Research High Tech Campus 34, Eindhoven, The Netherlands esko.dijk@philips.com -----Original Message----- From: core-bounces@ietf.org [mailto:core-bounces@ietf.org] On Behalf Of Cul= len Jennings Sent: Wednesday 12 January 2011 16:42 To: core WG Subject: [core] WGLC for draft-ietf-core-link-format-02 I would like to start the working group last call for draft-ietf-core-link-= format-02. Please review the draft and send comments to list by the end of = the day Jan 26. If you review the draft and have no comments, send an email= to the list or to the chairs so we have an idea of how much review the dra= ft received. The draft is at http://tools.ietf.org/html/draft-ietf-core-link-format-02 Thank you, Cullen & Carsten _______________________________________________ core mailing list core@ietf.org https://www.ietf.org/mailman/listinfo/core The information contained in this message may be confidential and legally p= rotected under applicable law. The message is intended solely for the addre= ssee(s). If you are not the intended recipient, you are hereby notified tha= t any use, forwarding, dissemination, or reproduction of this message is st= rictly prohibited and may be unlawful. If you are not the intended recipien= t, please contact the sender by return e-mail and destroy all copies of the= original message. From cabo@tzi.org Tue Jan 25 03:05:32 2011 Return-Path: X-Original-To: core@core3.amsl.com Delivered-To: core@core3.amsl.com Received: from localhost (localhost [127.0.0.1]) by core3.amsl.com (Postfix) with ESMTP id B42E13A6B9F for ; Tue, 25 Jan 2011 03:05:32 -0800 (PST) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -106.249 X-Spam-Level: X-Spam-Status: No, score=-106.249 tagged_above=-999 required=5 tests=[BAYES_00=-2.599, HELO_EQ_DE=0.35, RCVD_IN_DNSWL_MED=-4, USER_IN_WHITELIST=-100] Received: from mail.ietf.org ([64.170.98.32]) by localhost (core3.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id T8FxFPp3I4Tz for ; Tue, 25 Jan 2011 03:05:32 -0800 (PST) Received: from informatik.uni-bremen.de (mailhost.informatik.uni-bremen.de [IPv6:2001:638:708:30c9::12]) by core3.amsl.com (Postfix) with ESMTP id 544333A6BA2 for ; Tue, 25 Jan 2011 03:05:31 -0800 (PST) X-Virus-Scanned: amavisd-new at informatik.uni-bremen.de Received: from smtp-fb3.informatik.uni-bremen.de (smtp-fb3.informatik.uni-bremen.de [134.102.224.120]) by informatik.uni-bremen.de (8.14.3/8.14.3) with ESMTP id p0PB8Lwn025069; Tue, 25 Jan 2011 12:08:21 +0100 (CET) Received: from [192.168.2.2] (ip-109-43-3-116.web.vodafone.de [109.43.3.116]) (using TLSv1 with cipher AES128-SHA (128/128 bits)) (No client certificate requested) by smtp-fb3.informatik.uni-bremen.de (Postfix) with ESMTPSA id 308B285A; Tue, 25 Jan 2011 12:08:11 +0100 (CET) Mime-Version: 1.0 (Apple Message framework v1082) Content-Type: text/plain; charset=us-ascii From: Carsten Bormann In-Reply-To: <003701cbbc76$4c05c340$e41149c0$@uni-rostock.de> Date: Tue, 25 Jan 2011 12:08:35 +0100 Content-Transfer-Encoding: quoted-printable Message-Id: <92EA370D-FF85-4867-B27C-75EA0EA8FAF1@tzi.org> References: <003701cbbc76$4c05c340$e41149c0$@uni-rostock.de> To: Guido Moritz X-Mailer: Apple Mail (2.1082) Cc: 'core' Subject: [core] User Option -- Re: CoAP 04 Feedback X-BeenThere: core@ietf.org X-Mailman-Version: 2.1.9 Precedence: list List-Id: "Constrained RESTful Environments \(CoRE\) Working Group list" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 25 Jan 2011 11:05:32 -0000 Hi Guido, thanks for reviewing this draft so quickly. These are all very good points. To get some structure into the discussion, let me start with your point = 1. coap-misc (which is very much overtaken now in certain parts and sorely = needs to be updated) defines a User-defined option. Is that something we should pick up? Or do you have something different = in mind? I think we can discuss this best by first starting with the use case. Gruesse, Carsten From prvs=2006EA83FE=guido.moritz@uni-rostock.de Tue Jan 25 03:59:21 2011 Return-Path: X-Original-To: core@core3.amsl.com Delivered-To: core@core3.amsl.com Received: from localhost (localhost [127.0.0.1]) by core3.amsl.com (Postfix) with ESMTP id A9FA83A683E for ; Tue, 25 Jan 2011 03:59:21 -0800 (PST) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -1.777 X-Spam-Level: X-Spam-Status: No, score=-1.777 tagged_above=-999 required=5 tests=[AWL=0.472, BAYES_00=-2.599, DOS_OUTLOOK_TO_MX=1, HELO_EQ_DE=0.35, RCVD_IN_DNSWL_LOW=-1] Received: from mail.ietf.org ([64.170.98.32]) by localhost (core3.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id RcfV3CLPHrhR for ; Tue, 25 Jan 2011 03:59:20 -0800 (PST) Received: from mailrelay1.uni-rostock.de (mailrelay1.uni-rostock.de [139.30.8.201]) by core3.amsl.com (Postfix) with ESMTP id 929963A63C9 for ; Tue, 25 Jan 2011 03:59:20 -0800 (PST) From: Guido Moritz To: 'Carsten Bormann' References: <003701cbbc76$4c05c340$e41149c0$@uni-rostock.de> <92EA370D-FF85-4867-B27C-75EA0EA8FAF1@tzi.org> In-Reply-To: <92EA370D-FF85-4867-B27C-75EA0EA8FAF1@tzi.org> Date: Tue, 25 Jan 2011 13:02:29 +0100 Message-ID: <005801cbbc87$bd4147d0$37c3d770$@uni-rostock.de> MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable X-Mailer: Microsoft Outlook 14.0 Thread-Index: AQGgJM4dPByFmFNtOi8zdIpW5YBO0wIbqwYClCfjFhA= Content-Language: de Cc: 'core' Subject: Re: [core] User Option -- Re: CoAP 04 Feedback X-BeenThere: core@ietf.org X-Mailman-Version: 2.1.9 Precedence: list List-Id: "Constrained RESTful Environments \(CoRE\) Working Group list" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 25 Jan 2011 11:59:21 -0000 Sorry, I didn't had in mind that misc-06 proposes something like this. = What is required is some kind of "cookbook" or "framework" how to define own options without requiring going through any registration process.=20 I am not completely sure about the use cases. But a view on HTTP and the existing enhancements (WebDav, XMPP over HTTP, RPC over HTTP, SOAP over HTTP...) points to a need for such a mechanism to make CoAP not yet = another protocol but a long term cross domain solution. When defining HTTP, = surely nobody had in mind such mentioned couplings. But they are out there and working... Misc-06 seems to be a good starting point. Nevertheless, I am not sure = if the SDNV separation is applicable.=20 Maybe it would also be possible to have a double-track solution:=20 1. Either the own option is identified by a binary encoded option, = defined somewhere at IANA or any other responsible organization (similar to the solution in misc-06). Can we make sure to have all these registration in = one place to prevent from overlapping?=20 2. Or if not applicable or possible, the own option may be identified as ASCII string carried inline in the header. It is not optimal in size, = but very flexible and eases definition of own options significantly.=20 Guido > -----Urspr=FCngliche Nachricht----- > Von: Carsten Bormann [mailto:cabo@tzi.org] > Gesendet: Dienstag, 25. Januar 2011 12:09 > An: Guido Moritz > Cc: 'core' > Betreff: User Option -- Re: [core] CoAP 04 Feedback >=20 > Hi Guido, >=20 > thanks for reviewing this draft so quickly. > These are all very good points. >=20 > To get some structure into the discussion, let me start with your = point 1. > coap-misc (which is very much overtaken now in certain parts and = sorely > needs to be updated) defines a User-defined option. > Is that something we should pick up? Or do you have something = different in > mind? > I think we can discuss this best by first starting with the use case. >=20 > Gruesse, Carsten From Internet-Drafts@ietf.org Tue Jan 25 04:30:04 2011 Return-Path: X-Original-To: core@core3.amsl.com Delivered-To: core@core3.amsl.com Received: from localhost (localhost [127.0.0.1]) by core3.amsl.com (Postfix) with ESMTP id 30F8C3A6BAF; Tue, 25 Jan 2011 04:30:04 -0800 (PST) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -102.599 X-Spam-Level: X-Spam-Status: No, score=-102.599 tagged_above=-999 required=5 tests=[BAYES_00=-2.599, USER_IN_WHITELIST=-100] Received: from mail.ietf.org ([64.170.98.32]) by localhost (core3.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id AIw+gTexeb5q; Tue, 25 Jan 2011 04:30:02 -0800 (PST) Received: from [127.0.0.1] (localhost [127.0.0.1]) by core3.amsl.com (Postfix) with ESMTP id 422E03A6864; Tue, 25 Jan 2011 04:30:02 -0800 (PST) MIME-Version: 1.0 Content-Type: Multipart/Mixed; Boundary="NextPart" From: Internet-Drafts@ietf.org To: i-d-announce@ietf.org X-Test-IDTracker: no X-IETF-IDTracker: 3.10 Message-ID: <20110125123002.4926.6268.idtracker@localhost> Date: Tue, 25 Jan 2011 04:30:02 -0800 Cc: core@ietf.org Subject: [core] I-D Action:draft-ietf-core-block-01.txt X-BeenThere: core@ietf.org X-Mailman-Version: 2.1.9 Precedence: list List-Id: "Constrained RESTful Environments \(CoRE\) Working Group list" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 25 Jan 2011 12:30:04 -0000 --NextPart A New Internet-Draft is available from the on-line Internet-Drafts directories. This draft is a work item of the Constrained RESTful Environments Working Group of the IETF. Title : Blockwise transfers in CoAP Author(s) : Z. Shelby, C. Bormann Filename : draft-ietf-core-block-01.txt Pages : 19 Date : 2011-01-25 CoAP is a RESTful transfer protocol for constrained nodes and networks. CoAP is based on datagram transport, which limits the maximum size of resource representations that can be transferred without too much fragmentation. The Block option provides a minimal way to transfer larger representations in a block-wise fashion. A URL for this Internet-Draft is: http://www.ietf.org/internet-drafts/draft-ietf-core-block-01.txt Internet-Drafts are also available by anonymous FTP at: ftp://ftp.ietf.org/internet-drafts/ Below is the data which will enable a MIME compliant mail reader implementation to automatically retrieve the ASCII version of the Internet-Draft. --NextPart Content-Type: Message/External-body; name="draft-ietf-core-block-01.txt"; site="ftp.ietf.org"; access-type="anon-ftp"; directory="internet-drafts" Content-Type: text/plain Content-ID: <2011-01-25042552.I-D@ietf.org> --NextPart-- From zach@sensinode.com Tue Jan 25 04:33:23 2011 Return-Path: X-Original-To: core@core3.amsl.com Delivered-To: core@core3.amsl.com Received: from localhost (localhost [127.0.0.1]) by core3.amsl.com (Postfix) with ESMTP id 234693A6BAE for ; Tue, 25 Jan 2011 04:33:23 -0800 (PST) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -1.299 X-Spam-Level: X-Spam-Status: No, score=-1.299 tagged_above=-999 required=5 tests=[BAYES_00=-2.599, MANGLED_TOOL=2.3, RCVD_IN_DNSWL_LOW=-1] Received: from mail.ietf.org ([64.170.98.32]) by localhost (core3.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id 8ak4fBIcfQKg for ; Tue, 25 Jan 2011 04:33:22 -0800 (PST) Received: from auth-smtp.nebula.fi (auth-smtp.nebula.fi [217.30.180.105]) by core3.amsl.com (Postfix) with ESMTP id 9D6B43A6864 for ; Tue, 25 Jan 2011 04:33:21 -0800 (PST) Received: from [192.168.0.80] (82-128-196-163.bb.dnainternet.fi [82.128.196.163]) (authenticated bits=0) by auth-smtp.nebula.fi (8.13.4/8.13.4) with ESMTP id p0PCaE7T004383 (version=TLSv1/SSLv3 cipher=AES128-SHA bits=128 verify=NO) for ; Tue, 25 Jan 2011 14:36:15 +0200 From: Zach Shelby Content-Type: multipart/signed; boundary=Apple-Mail-314--175803036; protocol="application/pkcs7-signature"; micalg=sha1 Date: Tue, 25 Jan 2011 14:36:16 +0200 References: <20110125122554.05C193A6AC5@core3.amsl.com> To: core WG Message-Id: <31048368-D513-4B95-B99D-66B22D7AD080@sensinode.com> Mime-Version: 1.0 (Apple Message framework v1082) X-Mailer: Apple Mail (2.1082) Subject: [core] Fwd: New Version Notification for draft-ietf-core-block-01 X-BeenThere: core@ietf.org X-Mailman-Version: 2.1.9 Precedence: list List-Id: "Constrained RESTful Environments \(CoRE\) Working Group list" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 25 Jan 2011 12:33:23 -0000 --Apple-Mail-314--175803036 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset=us-ascii A new version of the CoAP blockwise transfer draft is now available: http://www.ietf.org/internet-drafts/draft-ietf-core-block-01.txt The 5 tickets from Beijing have now been closed, here is the change log = from -00 to -01 (I know, change log should be added to the draft): - Size estimation performed via the CoRE link format (#44) - Added benefits to the introduction (#47) - Added security considerations (#49) - Added extensive examples (#48) - New error code "4.08 Request Entity Incomplete" requested (#46) Zach & Carsten=20 Begin forwarded message: > From: IETF I-D Submission Tool > Date: January 25, 2011 2:25:54 PM GMT+02:00 > To: zach@sensinode.com > Cc: cabo@tzi.org > Subject: New Version Notification for draft-ietf-core-block-01=20 >=20 >=20 > A new version of I-D, draft-ietf-core-block-01.txt has been = successfully submitted by Zach Shelby and posted to the IETF repository. >=20 > Filename: draft-ietf-core-block > Revision: 01 > Title: Blockwise transfers in CoAP > Creation_date: 2011-01-25 > WG ID: core > Number_of_pages: 19 >=20 > Abstract: > CoAP is a RESTful transfer protocol for constrained nodes and > networks. CoAP is based on datagram transport, which limits the > maximum size of resource representations that can be transferred > without too much fragmentation. The Block option provides a minimal > way to transfer larger representations in a block-wise fashion. >=20 >=20 >=20 > The IETF Secretariat. >=20 >=20 --=20 Zach Shelby, Chief Nerd, Sensinode Ltd. http://zachshelby.org - My blog "On the Internet of Things" http://6lowpan.net - My book "6LoWPAN: The Wireless Embedded Internet" Mobile: +358 40 7796297 --Apple-Mail-314--175803036 Content-Disposition: attachment; filename=smime.p7s Content-Type: application/pkcs7-signature; name=smime.p7s Content-Transfer-Encoding: base64 MIAGCSqGSIb3DQEHAqCAMIACAQExCzAJBgUrDgMCGgUAMIAGCSqGSIb3DQEHAQAAoIIKGzCCBMww ggQ1oAMCAQICEByunWua9OYvIoqj2nRhbB4wDQYJKoZIhvcNAQEFBQAwXzELMAkGA1UEBhMCVVMx FzAVBgNVBAoTDlZlcmlTaWduLCBJbmMuMTcwNQYDVQQLEy5DbGFzcyAxIFB1YmxpYyBQcmltYXJ5 IENlcnRpZmljYXRpb24gQXV0aG9yaXR5MB4XDTA1MTAyODAwMDAwMFoXDTE1MTAyNzIzNTk1OVow gd0xCzAJBgNVBAYTAlVTMRcwFQYDVQQKEw5WZXJpU2lnbiwgSW5jLjEfMB0GA1UECxMWVmVyaVNp Z24gVHJ1c3QgTmV0d29yazE7MDkGA1UECxMyVGVybXMgb2YgdXNlIGF0IGh0dHBzOi8vd3d3LnZl 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-0800 (PST) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -3.288 X-Spam-Level: X-Spam-Status: No, score=-3.288 tagged_above=-999 required=5 tests=[AWL=0.311, BAYES_00=-2.599, RCVD_IN_DNSWL_LOW=-1] Received: from mail.ietf.org ([64.170.98.32]) by localhost (core3.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id Q4dMsVuU0jn2; Tue, 25 Jan 2011 07:52:31 -0800 (PST) Received: from mailX01.eud.schneider-electric.com (mailx01.eud.schneider-electric.com [205.167.7.35]) by core3.amsl.com (Postfix) with ESMTP id E87AC3A67EA; Tue, 25 Jan 2011 07:52:30 -0800 (PST) Received: from ateui02.Schneider-Electric.com ([10.198.14.10]) by mailX01.eud.schneider-electric.com with ESMTP id 2011012516384223-26930 ; Tue, 25 Jan 2011 16:38:42 +0100 In-Reply-To: <003701cbbc76$4c05c340$e41149c0$@uni-rostock.de> To: Guido Moritz MIME-Version: 1.0 X-Mailer: Lotus Notes Release 6.5.6 March 06, 2007 From: matthieu.vial@fr.non.schneider-electric.com Message-ID: Date: Tue, 25 Jan 2011 16:55:19 +0100 X-MIMETrack: Serialize by Router on ATEUI02.Schneider-Electric.com/T/SVR/Schneider at 25/01/2011 16:55:27, Serialize complete at 25/01/2011 16:55:27, Itemize by SMTP Server on AXEU1OUT.schneider-electric.com/X/SVR/SEIxtra at 25/01/2011 16:38:42, Serialize by Router on AXEU1OUT.schneider-electric.com/X/SVR/SEIxtra at 25/01/2011 16:38:43, Serialize complete at 25/01/2011 16:38:43 Content-Type: text/plain; charset="US-ASCII" Cc: core-bounces@ietf.org, 'core' Subject: [core] RE CoAP 04 Feedback X-BeenThere: core@ietf.org X-Mailman-Version: 2.1.9 Precedence: list List-Id: "Constrained RESTful Environments \(CoRE\) Working Group list" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 25 Jan 2011 15:52:32 -0000 Hi all, First of all I would like to congratulate the authors for their work. Here are some more comments about the draft, hoping it could be useful. 1) section 4.1 The text about response floods with error codes has been removed but section 10.3.3 and 2.1 still have references to it. Also there could be an additional congestion control mechanism for multicast responses like a short random delay for responses to a multicast request. 2) section 5.3 Why is it a SHOULD and not a MUST in the sentence "The client SHOULD generate tokens in a way that tokens currently in use are unique"? For the message ID the equivalent sentence is with a MUST. Is it because if the client knows in advance that every transactions are immediate, tokens will be useless? 3) section 5.8.2 IMHO the term full deduplication support is not well defined. Maybe there could be a separate section to describe the deduplication mechanism and a reference in 5.8 The right thing to do with duplicate messages is better expressed in coap-4 but is still not obvious because there are many optimizations that an implemention may chose to adopt. 4) section 5.10.1 The token option defaults to a zero-length token. What is the exact goal for an empty token? Does it mean that a client supporting only one outstanding request does not have to generate a token and can just always use token 0? Is there a risk to receive cross responses if a client always uses the same token even if there is only one active request at a time and especially in case of deferred responses with late retransmissions? Maybe there could be a reference to section 5.3 which already contains details about empty token. 5) section 5.10.5 I understand the text with the opposite meaning compared to coap-3 when max-age is used in a request. What is the exact goal? a) I want a representation that I can keep at least X seconds in my cache. (coap-4) b) I want a representation which is no more than X second old. (coap-3) 6) Table 1 - IMHO the explanations in appendix A about zero-length uint for max age and URI port appear quite late. - Table 1 specifies that the length range for the token option is 1-8. It is not fully consistent with an empty default value. But maybe it means: if the option is present the length is 1-8 otherwise the length is 0 7) section 8.1 The most used HTTP code (200 OK) is the most complex to map to CoAP. Maybe a more straightforward mapping could avoid interoperability issues. 8) section 10.3.1 Do you think there is a possibility to build a link-format just like a sequence of coap options and then share the same base code but with options dedicated to /.well-known/core? URI parsing/construction of coap with split paths is much simpler than the current link-format syntax. This could reduce the processing vulnerabilities and the amount of code thus probably also improve deployment of the discovery feature. Regards, Matthieu From cabo@tzi.org Tue Jan 25 08:55:08 2011 Return-Path: X-Original-To: core@core3.amsl.com Delivered-To: core@core3.amsl.com Received: from localhost (localhost [127.0.0.1]) by core3.amsl.com (Postfix) with ESMTP id 365933A682B for ; Tue, 25 Jan 2011 08:55:08 -0800 (PST) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -106.249 X-Spam-Level: X-Spam-Status: No, score=-106.249 tagged_above=-999 required=5 tests=[BAYES_00=-2.599, HELO_EQ_DE=0.35, RCVD_IN_DNSWL_MED=-4, USER_IN_WHITELIST=-100] Received: from mail.ietf.org ([64.170.98.32]) by localhost (core3.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id CNCe92zIhczL for ; Tue, 25 Jan 2011 08:55:05 -0800 (PST) Received: from informatik.uni-bremen.de (mailhost.informatik.uni-bremen.de [IPv6:2001:638:708:30c9::12]) by core3.amsl.com (Postfix) with ESMTP id ECD693A6817 for ; Tue, 25 Jan 2011 08:55:03 -0800 (PST) X-Virus-Scanned: amavisd-new at informatik.uni-bremen.de Received: from smtp-fb3.informatik.uni-bremen.de (smtp-fb3.informatik.uni-bremen.de [134.102.224.120]) by informatik.uni-bremen.de (8.14.3/8.14.3) with ESMTP id p0PGvqsC016370; Tue, 25 Jan 2011 17:57:52 +0100 (CET) Received: from [192.168.10.52] (christoph.dagstuhl.de [192.76.146.51]) (using TLSv1 with cipher AES128-SHA (128/128 bits)) (No client certificate requested) by smtp-fb3.informatik.uni-bremen.de (Postfix) with ESMTPSA id 1087FB67; Tue, 25 Jan 2011 17:57:52 +0100 (CET) Mime-Version: 1.0 (Apple Message framework v1082) Content-Type: text/plain; charset=us-ascii From: Carsten Bormann In-Reply-To: Date: Tue, 25 Jan 2011 17:58:21 +0100 Content-Transfer-Encoding: quoted-printable Message-Id: References: To: matthieu.vial@fr.non.schneider-electric.com X-Mailer: Apple Mail (2.1082) Cc: core Environments WG Subject: [core] Default Tokens, max-age (Re: RE CoAP 04 Feedback) X-BeenThere: core@ietf.org X-Mailman-Version: 2.1.9 Precedence: list List-Id: "Constrained RESTful Environments \(CoRE\) Working Group list" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 25 Jan 2011 16:55:08 -0000 Hi Matthieu, another set of high-quality comments. Let me try to answer two and a half of them first: > 2) section 5.3 > Why is it a SHOULD and not a MUST in the sentence "The client SHOULD=20= > generate tokens in a way that tokens currently in use are unique"? > For the message ID the equivalent sentence is with a MUST. Is it = because=20 > if the client knows in advance that every transactions are immediate,=20= > tokens will be useless? That is clearly an oversight. There is one strange corner case, where you have two request going at = the same point and don't care which one you get. Say, there are two sources for some information, and you do a GET of = both. Really a corner case. In the end, if you don't use unique tokens, you don't know which of your = questions were answered. > 4) section 5.10.1 > The token option defaults to a zero-length token. What is the exact = goal=20 > for an empty token? Use very little space :-) > Does it mean that a client supporting only one=20 > outstanding request does not have to generate a token and can just = always=20 > use token 0? Well, the request might be answered with an empty message (i.e., be = deferred), and *then* you have to start using other token values if you = want to put another request in flight before you got the response (and = maybe have waited some suitable MSL to account for UDP duplicates). As = long as all your requests get immediate responses, you can continue to = use a default token. Also, if you never send another request (more = precisely: expect to get another response) before you got the deferred = response that used up your empty token (and some suitable MSL has = elapsed), you also get by with an empty token. > Is there a risk to receive cross responses if a client always=20 > uses the same token even if there is only one active request at a time = and=20 > especially in case of deferred responses with late retransmissions? > Maybe there could be a reference to section 5.3 which already contains=20= > details about empty token. The same applies if you always send token 0x4711, so it's not something = special about the empty token, it's about token reuse. Reusing the empty token is just especially attractive, because it needs = zero space in both request and response. > 5) section 5.10.5 > I understand the text with the opposite meaning compared to coap-3 = when=20 > max-age is used in a request. What is the exact goal?=20 I don't know; I'm arguing for getting rid of this. > a) I want a representation that I can keep at least X seconds in my = cache.=20 > (coap-4) Well, that makes at least a little bit of sense, so that's what's in = there. > b) I want a representation which is no more than X second old. = (coap-3) b does not work very well. Scenario: C sends a GET/max-age=3D10 to O, the origin server, and caches the = response. 7 seconds later, B does a GET/max-age-10 to intermediary C and caches = the response. 6 seconds later, A ends GET/max-age=3D10 to intermediary B. =20 B of course responds out of its cached response, since it got that only = 5 seconds ago from C. =20 Now A got a message that is 13 seconds old. We'd need something similar to HTTP's Age: header, or some really = complicated rules for tagging cached responses and only using this if = there was an appropriate chain of max-age request options, to solve = this. Worth it? For which scenario? > 8) section 10.3.1 > Do you think there is a possibility to build a link-format just like a=20= > sequence of coap options and then share the same base code but with=20 > options dedicated to /.well-known/core? URI parsing/construction of = coap=20 > with split paths is much simpler than the current link-format syntax. = This=20 > could reduce the processing vulnerabilities and the amount of code = thus=20 > probably also improve deployment of the discovery feature. Interesting. Gruesse, Carsten From cabo@tzi.org Tue Jan 25 10:56:56 2011 Return-Path: X-Original-To: core@core3.amsl.com Delivered-To: core@core3.amsl.com Received: from localhost (localhost [127.0.0.1]) by core3.amsl.com (Postfix) with ESMTP id A6F323A683B for ; Tue, 25 Jan 2011 10:56:56 -0800 (PST) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -107.249 X-Spam-Level: X-Spam-Status: No, score=-107.249 tagged_above=-999 required=5 tests=[AWL=0.999, BAYES_00=-2.599, GB_I_INVITATION=-2, HELO_EQ_DE=0.35, HTML_MESSAGE=0.001, RCVD_IN_DNSWL_MED=-4, USER_IN_WHITELIST=-100] Received: from mail.ietf.org ([64.170.98.32]) by localhost (core3.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id twsyN4u6SnrH for ; Tue, 25 Jan 2011 10:56:55 -0800 (PST) Received: from informatik.uni-bremen.de (mailhost.informatik.uni-bremen.de [IPv6:2001:638:708:30c9::12]) by core3.amsl.com (Postfix) with ESMTP id DB8303A680E for ; Tue, 25 Jan 2011 10:56:54 -0800 (PST) X-Virus-Scanned: amavisd-new at informatik.uni-bremen.de Received: from smtp-fb3.informatik.uni-bremen.de (smtp-fb3.informatik.uni-bremen.de [134.102.224.120]) by informatik.uni-bremen.de (8.14.3/8.14.3) with ESMTP id p0PIxhdS004930 for ; Tue, 25 Jan 2011 19:59:43 +0100 (CET) Received: from [192.168.10.52] (christoph.dagstuhl.de [192.76.146.51]) (using TLSv1 with cipher AES128-SHA (128/128 bits)) (No client certificate requested) by smtp-fb3.informatik.uni-bremen.de (Postfix) with ESMTPSA id 9DF61BF6; Tue, 25 Jan 2011 19:59:43 +0100 (CET) Mime-Version: 1.0 (Apple Message framework v1082) Content-Type: multipart/alternative; boundary=Apple-Mail-30--152766938 From: Carsten Bormann X-Priority: 3 Date: Tue, 25 Jan 2011 20:00:12 +0100 Message-Id: <91F2AF58-6465-4CC6-B1D1-A1C0843AA31B@tzi.org> References: <246702410.1288294444998.JavaMail.nobody@jsj2wl013.webex.com> To: core Environments WG X-Mailer: Apple Mail (2.1082) Subject: [core] Jan 26 Webex Meeting invitation: CORE WG Interim X-BeenThere: core@ietf.org X-Mailman-Version: 2.1.9 Precedence: list List-Id: "Constrained RESTful Environments \(CoRE\) Working Group list" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 25 Jan 2011 18:56:56 -0000 --Apple-Mail-30--152766938 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset=us-ascii Tomorrow! 1500 UTC. Here are the access details again. Gruesse, Carsten > IETF Secretariat invites you to attend this online meeting.=20 >=20 > Topic: CORE WG Interim=20 > Date: The 4th Wednesday of every 1 months, from Wednesday, November = 24, 2010 to Wednesday, February 23, 2011=20 > Time: 7:00 am, Pacific Standard Time (San Francisco, GMT-08:00)=20 > Meeting Number: 968 779 888=20 > Meeting Password: (This meeting does not require a password.)=20 >=20 >=20 > -------------------------------------------------------=20 > To join the online meeting (Now from the Apple iPhone (R) too!)=20 > -------------------------------------------------------=20 > 1. Go to = https://workgreen.webex.com/workgreen/j.php?ED=3D148478702&UID=3D119101834= 2&RT=3DMiM0=20 > 2. If requested, enter your name and email address.=20 > 3. If a password is required, enter the meeting password: (This = meeting does not require a password.)=20 > 4. Click "Join".=20 >=20 > To view in other time zones or languages, please click the link:=20 > = https://workgreen.webex.com/workgreen/j.php?ED=3D148478702&UID=3D119101834= 2&ORT=3DMiM0=20 >=20 > -------------------------------------------------------=20 > To join the audio conference only=20 > -------------------------------------------------------=20 > To receive a call back, provide your phone number when you join the = meeting, or call the number below and enter the access code.=20 > Call-in toll number (US/Canada): 1-408-792-6300=20 > Global call-in numbers: = https://workgreen.webex.com/workgreen/globalcallin.php?serviceType=3DMC&ED= =3D148478702&tollFree=3D0=20 >=20 > Access code:968 779 888=20 >=20 > -------------------------------------------------------=20 > For assistance=20 > -------------------------------------------------------=20 > 1. Go to https://workgreen.webex.com/workgreen/mc=20 > 2. On the left navigation bar, click "Support".=20 >=20 >=20 > To add this meeting to your calendar program (for example Microsoft = Outlook), click this link:=20 > = https://workgreen.webex.com/workgreen/j.php?ED=3D148478702&UID=3D119101834= 2&ICS=3DMI&LD=3D1&RD=3D2&ST=3D1&SHA2=3DveNIkert46u3Z39RM7KdaRRpdk2jFD7u36h= OBg9YwdM=3D&RT=3DMiM0=20 >=20 > The playback of UCF (Universal Communications Format) rich media files = requires appropriate players. To view this type of rich media files in = the meeting, please check whether you have the players installed on your = computer by going to = https://workgreen.webex.com/workgreen/systemdiagnosis.php=20 >=20 > Sign up for a free trial of WebEx=20 > http://www.webex.com/go/mcemfreetrial=20 >=20 > http://www.webex.com=20 >=20 >=20 >=20 > IMPORTANT NOTICE: This WebEx service includes a feature that allows = audio and any documents and other materials exchanged or viewed during = the session to be recorded. By joining this session, you automatically = consent to such recordings. If you do not consent to the recording, = discuss your concerns with the meeting host prior to the start of the = recording or do not join the session. Please note that any such = recordings may be subject to discovery in the event of litigation.=20 --Apple-Mail-30--152766938 Content-Transfer-Encoding: quoted-printable Content-Type: text/html; charset=us-ascii Tomorrow! 1500 UTC.
Here are the access = details again.

Gruesse, Carsten

IETF Secretariat = invites you to attend this online meeting.

= Topic: CORE WG Interim
Date: The 4th Wednesday of every = 1 months, from Wednesday, November 24, 2010 to Wednesday, February 23, = 2011
Time: 7:00 am, Pacific Standard Time (San = Francisco, GMT-08:00)
Meeting Number: 968 779 888
Meeting Password: (This meeting does not require a = password.)


= -------------------------------------------------------
= To join the online meeting (Now from the Apple iPhone (R) too!)
-------------------------------------------------------
1. Go to https://workgreen.webex.com/workgreen/j.php?ED=3D148478702&= UID=3D1191018342&RT=3DMiM0
2. If requested, = enter your name and email address.
3. If a password is = required, enter the meeting password: (This meeting does not require a = password.)
4. Click "Join".

To view in other time zones or languages, please click the = link:
https://workgreen.webex.com/workgreen/j.php?ED=3D148478702&= UID=3D1191018342&ORT=3DMiM0

= -------------------------------------------------------
= To join the audio conference only
= -------------------------------------------------------
= To receive a call back, provide your phone number when you join the = meeting, or call the number below and enter the access code.
Call-in toll number (US/Canada): 1-408-792-6300
Global call-in numbers: https://workgreen.webex.com/workgreen/globalcallin.php?serviceT= ype=3DMC&ED=3D148478702&tollFree=3D0

Access code:968 779 888

= -------------------------------------------------------
= For assistance
= -------------------------------------------------------
= 1. Go to https://workgreen.webex.com/workgreen/mc =
2. On the left navigation bar, click "Support".


To add this meeting to your = calendar program (for example Microsoft Outlook), click this link:
https://workgreen.webex.com/workgreen/j.php?ED=3D148478702&= UID=3D1191018342&ICS=3DMI&LD=3D1&RD=3D2&ST=3D1&SHA2=3D= veNIkert46u3Z39RM7KdaRRpdk2jFD7u36hOBg9YwdM=3D&RT=3DMiM0

The playback of UCF (Universal = Communications Format) rich media files requires appropriate players. To = view this type of rich media files in the meeting, please check whether = you have the players installed on your computer by going to https://workgreen.webex.com/workgreen/systemdiagnosis.php =

Sign up for a free trial of WebEx
http://www.webex.com/go/mcemfreetrial =

http://www.webex.com
=


IMPORTANT NOTICE: This = WebEx service includes a feature that allows audio and any documents and = other materials exchanged or viewed during the session to be recorded. = By joining this session, you automatically consent to such recordings. = If you do not consent to the recording, discuss your concerns with the = meeting host prior to the start of the recording or do not join the = session. Please note that any such recordings may be subject to = discovery in the event of litigation.
=

= --Apple-Mail-30--152766938-- From angelo.castellani@gmail.com Tue Jan 25 13:31:01 2011 Return-Path: X-Original-To: core@core3.amsl.com Delivered-To: core@core3.amsl.com Received: from localhost (localhost [127.0.0.1]) by core3.amsl.com (Postfix) with ESMTP id 81E003A68D3 for ; Tue, 25 Jan 2011 13:31:01 -0800 (PST) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -2.56 X-Spam-Level: X-Spam-Status: No, score=-2.56 tagged_above=-999 required=5 tests=[AWL=0.417, BAYES_00=-2.599, FM_FORGED_GMAIL=0.622, RCVD_IN_DNSWL_LOW=-1] Received: from mail.ietf.org ([64.170.98.32]) by localhost (core3.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id lRvNPBhQFun4 for ; Tue, 25 Jan 2011 13:31:00 -0800 (PST) Received: from mail-qw0-f44.google.com (mail-qw0-f44.google.com [209.85.216.44]) by core3.amsl.com (Postfix) with ESMTP id 6293F3A68CB for ; Tue, 25 Jan 2011 13:31:00 -0800 (PST) Received: by qwi2 with SMTP id 2so257016qwi.31 for ; Tue, 25 Jan 2011 13:33:58 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma; h=domainkey-signature:mime-version:sender:in-reply-to:references:from :date:x-google-sender-auth:message-id:subject:to:cc:content-type :content-transfer-encoding; bh=3EFncQUq8FHnd64MesFVe6BnPXJ6g4UMPCaugvGm26o=; b=v1N2YFoKX/JJeTIZb4DMefATtiumPjO+eep/k8S+byTOtUr/scOMo141XqQD7d+CCt zHNwvuAh0ru1pxSDfhKMmuIV5N51bODABxQAiRKQAXBlfvfcyRaaIAy3lIOLwoJGkzbF U3ongYor9SuYC+vm3NOEBoCZ8BcDgFxRYI5jA= DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=mime-version:sender:in-reply-to:references:from:date :x-google-sender-auth:message-id:subject:to:cc:content-type :content-transfer-encoding; b=v4r8Bh20FvTiV/iBR61BRFFWSYhVJk2PUpnXcy5e3FR1O0AXAi+G4yQ9GfphVJ03dK t02gkQjufgfB1Z+IjxwlzxqcOjnouT0klesfqEymdg2dwVsKzPGJ9TkznadAaRoxwGri WEHJbrOzigPmkJgZC3T7zNAT8nae0OeSi2wow= Received: by 10.229.230.17 with SMTP id jk17mr5196076qcb.184.1295991238331; Tue, 25 Jan 2011 13:33:58 -0800 (PST) MIME-Version: 1.0 Sender: angelo.castellani@gmail.com Received: by 10.229.218.69 with HTTP; Tue, 25 Jan 2011 13:33:38 -0800 (PST) In-Reply-To: <20110125212845.11A853A6881@core3.amsl.com> References: <20110125212845.11A853A6881@core3.amsl.com> From: "Angelo P. Castellani" Date: Tue, 25 Jan 2011 22:33:38 +0100 X-Google-Sender-Auth: z_Hl_xu66NHJRobOLNLsixv_NAg Message-ID: To: core Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: quoted-printable Cc: Michele Zorzi , Nicola Bui Subject: [core] Fwd: New Version Notification for draft-castellani-core-http-coap-mapping-00 X-BeenThere: core@ietf.org X-Mailman-Version: 2.1.9 Precedence: list List-Id: "Constrained RESTful Environments \(CoRE\) Working Group list" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 25 Jan 2011 21:31:01 -0000 All, we have submitted a draft discussing the best practices of the HTTP/CoAP mapping. Unfortunately this document was based upon CoAP-03; after the release of CoAP-04, Section 2 (at least) needs a major editing (planned). Nevertheless we believe that a good part of the concepts present is the document are still interesting. We submit it anyway in order to open discussion on the open issues outlined= . We look forward to any feedback from the group. Angelo & Salvatore ---------- Forwarded message ---------- From: IETF I-D Submission Tool Date: Tue, Jan 25, 2011 at 22:28 Subject: New Version Notification for draft-castellani-core-http-coap-mapping-00 To: angelo@castellani.net Cc: salvatore.loreto@ericsson.com A new version of I-D, draft-castellani-core-http-coap-mapping-00.txt has been successfully submitted by Angelo P. Castellani and posted to the IETF repository. Filename: =A0 =A0 =A0 =A0draft-castellani-core-http-coap-mapping Revision: =A0 =A0 =A0 =A000 Title: =A0 =A0 =A0 =A0 =A0 Best Practice to map HTTP to COAP and viceversa Creation_date: =A0 2011-01-25 WG ID: =A0 =A0 =A0 =A0 =A0 Independent Submission Number_of_pages: 20 Abstract: This draft aims at being a simple guide to the use of CoAP REST interface, to show how it can be mapped to and from HTTP, and at being a base reference documentation for CoAP/HTTP proxy implementors. The IETF Secretariat. From angelo.castellani@gmail.com Tue Jan 25 13:51:55 2011 Return-Path: X-Original-To: core@core3.amsl.com Delivered-To: core@core3.amsl.com Received: from localhost (localhost [127.0.0.1]) by core3.amsl.com (Postfix) with ESMTP id 95FBA3A6891 for ; Tue, 25 Jan 2011 13:51:55 -0800 (PST) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -2.582 X-Spam-Level: X-Spam-Status: No, score=-2.582 tagged_above=-999 required=5 tests=[AWL=0.395, BAYES_00=-2.599, FM_FORGED_GMAIL=0.622, RCVD_IN_DNSWL_LOW=-1] Received: from mail.ietf.org ([64.170.98.32]) by localhost (core3.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id NCtORfT4Lzt2 for ; Tue, 25 Jan 2011 13:51:51 -0800 (PST) Received: from mail-qy0-f172.google.com (mail-qy0-f172.google.com [209.85.216.172]) by core3.amsl.com (Postfix) with ESMTP id 741293A6852 for ; Tue, 25 Jan 2011 13:51:51 -0800 (PST) Received: by qyk34 with SMTP id 34so4672755qyk.10 for ; Tue, 25 Jan 2011 13:54:49 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma; h=domainkey-signature:mime-version:sender:in-reply-to:references:from :date:x-google-sender-auth:message-id:subject:to:cc:content-type :content-transfer-encoding; bh=HSumSmAyon81zkzUsHKIKZW6EWGJF0lv6if68j8jSJg=; b=pQdA0CPyM1GH3AX/XKezyKlJWFalXD4MtC+HEt4NJ0FxZc76kqXUR6BgFi1l8MKEQi xs+M2WEPW4V+HDQPgjd3nr/FIvi842AlLv+tnIZqP+quhhitlo9L4qg05T4DfyS7FEuB NqjU6mXf0QfbZNHe6NB/NzJe/00CI+pI8AsYo= DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=mime-version:sender:in-reply-to:references:from:date :x-google-sender-auth:message-id:subject:to:cc:content-type :content-transfer-encoding; b=Kj8sNWzrCPNoIdVz7AlpFNco13vpt5UjQ7YYrS+eNTzmEfqbbspb3Vu9o39pOi+iKW jj4wyrBMlyVpMOZJVoYiL7QBzWUiWp+4bfnFZuZntsYK8wzozS4Cs4NrZWk8SVA+ZYvT hI2FRutdhTopkFF5evmETURImD8AgkSNTt/PQ= Received: by 10.229.91.2 with SMTP id k2mr5200690qcm.260.1295992489366; Tue, 25 Jan 2011 13:54:49 -0800 (PST) MIME-Version: 1.0 Sender: angelo.castellani@gmail.com Received: by 10.229.218.69 with HTTP; Tue, 25 Jan 2011 13:54:28 -0800 (PST) In-Reply-To: References: <20110125212845.11A853A6881@core3.amsl.com> From: "Angelo P. Castellani" Date: Tue, 25 Jan 2011 22:54:28 +0100 X-Google-Sender-Auth: 6dG_Q7rHYczv1c8Ezn8FkisQJ4w Message-ID: To: core Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: quoted-printable Cc: Michele Zorzi , Nicola Bui Subject: Re: [core] New Version Notification for draft-castellani-core-http-coap-mapping-00 X-BeenThere: core@ietf.org X-Mailman-Version: 2.1.9 Precedence: list List-Id: "Constrained RESTful Environments \(CoRE\) Working Group list" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 25 Jan 2011 21:51:56 -0000 The document is available here: http://www.ietf.org/id/draft-castellani-core-http-coap-mapping-00.txt On Tue, Jan 25, 2011 at 22:33, Angelo P. Castellani wrote: > All, > we have submitted a draft discussing the best practices of the > HTTP/CoAP mapping. > > Unfortunately this document was based upon CoAP-03; after the release > of CoAP-04, Section 2 (at least) needs a major editing (planned). > > Nevertheless we believe that a good part of the concepts present is > the document are still interesting. > > We submit it anyway in order to open discussion on the open issues outlin= ed. > > We look forward to any feedback from the group. > > Angelo & Salvatore > > ---------- Forwarded message ---------- > From: IETF I-D Submission Tool > Date: Tue, Jan 25, 2011 at 22:28 > Subject: New Version Notification for > draft-castellani-core-http-coap-mapping-00 > To: angelo@castellani.net > Cc: salvatore.loreto@ericsson.com > > > > A new version of I-D, draft-castellani-core-http-coap-mapping-00.txt > has been successfully submitted by Angelo P. Castellani and posted to > the IETF repository. > > Filename: =A0 =A0 =A0 =A0draft-castellani-core-http-coap-mapping > Revision: =A0 =A0 =A0 =A000 > Title: =A0 =A0 =A0 =A0 =A0 Best Practice to map HTTP to COAP and vicevers= a > Creation_date: =A0 2011-01-25 > WG ID: =A0 =A0 =A0 =A0 =A0 Independent Submission > Number_of_pages: 20 > > Abstract: > This draft aims at being a simple guide to the use of CoAP REST > interface, to show how it can be mapped to and from HTTP, and at > being a base reference documentation for CoAP/HTTP proxy > implementors. > > > > The IETF Secretariat. > From stpeter@stpeter.im Tue Jan 25 14:03:20 2011 Return-Path: X-Original-To: core@core3.amsl.com Delivered-To: core@core3.amsl.com Received: from localhost (localhost [127.0.0.1]) by core3.amsl.com (Postfix) with ESMTP id B45BE3A68AF for ; Tue, 25 Jan 2011 14:03:20 -0800 (PST) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -102.53 X-Spam-Level: X-Spam-Status: No, score=-102.53 tagged_above=-999 required=5 tests=[AWL=0.069, BAYES_00=-2.599, USER_IN_WHITELIST=-100] Received: from mail.ietf.org ([64.170.98.32]) by localhost (core3.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id 7xV5NepCkSsk for ; Tue, 25 Jan 2011 14:03:19 -0800 (PST) Received: from stpeter.im (stpeter.im [207.210.219.233]) by core3.amsl.com (Postfix) with ESMTP id 55F003A68A3 for ; Tue, 25 Jan 2011 14:03:19 -0800 (PST) Received: from dhcp-64-101-72-234.cisco.com (dhcp-64-101-72-234.cisco.com [64.101.72.234]) (Authenticated sender: stpeter) by stpeter.im (Postfix) with ESMTPSA id 3CE18400F6; Tue, 25 Jan 2011 15:22:28 -0700 (MST) Message-ID: <4D3F4958.1050001@stpeter.im> Date: Tue, 25 Jan 2011 15:06:16 -0700 From: Peter Saint-Andre User-Agent: Mozilla/5.0 (Macintosh; U; Intel Mac OS X 10.5; en-US; rv:1.9.2.13) Gecko/20101207 Thunderbird/3.1.7 MIME-Version: 1.0 To: Carsten Bormann References: <91473B88-3BDF-404D-947C-A717A3399243@cisco.com> <5723A7F1-4BC4-4A1B-B420-A403BA7755AA@tzi.org> In-Reply-To: <5723A7F1-4BC4-4A1B-B420-A403BA7755AA@tzi.org> X-Enigmail-Version: 1.1.1 OpenPGP: url=http://www.saint-andre.com/me/stpeter.asc Content-Type: multipart/signed; protocol="application/pkcs7-signature"; micalg=sha1; boundary="------------ms040108080801050305060801" Cc: core WG Subject: Re: [core] WGLC for draft-ietf-core-link-format-02 X-BeenThere: core@ietf.org X-Mailman-Version: 2.1.9 Precedence: list List-Id: "Constrained RESTful Environments \(CoRE\) Working Group list" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 25 Jan 2011 22:03:20 -0000 This is a cryptographically signed message in MIME format. --------------ms040108080801050305060801 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: quoted-printable On 1/20/11 4:41 AM, Carsten Bormann wrote: > Hi Angelo, >=20 > indeed the draft could explain better what the underlying discovery > model is. Maybe it doesn't because the discovery mechanisms are > independent from how you use them, so strictly you don't have to > understand the use case to use this protocol... But it sure helps > when evaluating it. >=20 > During commissioning, if you have machines do all the discovery, they > will never quite know what the items/objects mean. They also can't > really know environmental information, e.g. that the light switch > B46FFE9DC12A4EEC8DF25346D88E1FB6 is the one near the kitchen door. So > a human installer will still be needed in many cases -- either at the > place of installation or beforehand in planning/supervising an > off-site commissioning process. However, a human installer can be > helped by a reasonably smart user interface on an installer device, > and that in turn can be helped a lot by devices providing some > information about themselves. Making this information available may > even enable simplifying the user interface for a simple installation > enough that you actually can do it using a LED and two buttons. >=20 > In short, supporting installation/commissioning is the most useful > application I see for resource discovery. There are also applications > in diagnostics/debugging and other management activities. IMHO it would be helpful to describe some of the use cases we envision as a way to motivate the discussion. As part of that text, it would also help to describe what kinds of things we expect will play the role of constrained servers. Carsten, you mention "devices providing some information about themselves" -- does that imply that the devices are constrained servers? 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From stpeter@stpeter.im Tue Jan 25 15:12:03 2011 Return-Path: X-Original-To: core@core3.amsl.com Delivered-To: core@core3.amsl.com Received: from localhost (localhost [127.0.0.1]) by core3.amsl.com (Postfix) with ESMTP id 8B2EA3A68CD for ; Tue, 25 Jan 2011 15:12:03 -0800 (PST) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -102.549 X-Spam-Level: X-Spam-Status: No, score=-102.549 tagged_above=-999 required=5 tests=[AWL=0.050, BAYES_00=-2.599, USER_IN_WHITELIST=-100] Received: from mail.ietf.org ([64.170.98.32]) by localhost (core3.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id qzT8wMvVlttN for ; Tue, 25 Jan 2011 15:12:02 -0800 (PST) Received: from stpeter.im (stpeter.im [207.210.219.233]) by core3.amsl.com (Postfix) with ESMTP id 6CD823A68A2 for ; Tue, 25 Jan 2011 15:12:02 -0800 (PST) Received: from dhcp-64-101-72-234.cisco.com (dhcp-64-101-72-234.cisco.com [64.101.72.234]) (Authenticated sender: stpeter) by stpeter.im (Postfix) with ESMTPSA id BC3CB400F6 for ; Tue, 25 Jan 2011 16:31:11 -0700 (MST) Message-ID: <4D3F5972.2020404@stpeter.im> Date: Tue, 25 Jan 2011 16:14:58 -0700 From: Peter Saint-Andre User-Agent: Mozilla/5.0 (Macintosh; U; Intel Mac OS X 10.5; en-US; rv:1.9.2.13) Gecko/20101207 Thunderbird/3.1.7 MIME-Version: 1.0 To: core WG References: <91473B88-3BDF-404D-947C-A717A3399243@cisco.com> In-Reply-To: <91473B88-3BDF-404D-947C-A717A3399243@cisco.com> X-Enigmail-Version: 1.1.1 OpenPGP: url=http://www.saint-andre.com/me/stpeter.asc Content-Type: multipart/signed; protocol="application/pkcs7-signature"; micalg=sha1; boundary="------------ms060906010103090605040301" Subject: Re: [core] WGLC for draft-ietf-core-link-format-02 X-BeenThere: core@ietf.org X-Mailman-Version: 2.1.9 Precedence: list List-Id: "Constrained RESTful Environments \(CoRE\) Working Group list" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 25 Jan 2011 23:12:03 -0000 This is a cryptographically signed message in MIME format. --------------ms060906010103090605040301 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: quoted-printable On 1/12/11 8:42 AM, Cullen Jennings wrote: >=20 > I would like to start the working group last call for > draft-ietf-core-link-format-02. Please review the draft and send > comments to list by the end of the day Jan 26. If you review the > draft and have no comments, send an email to the list or to the > chairs so we have an idea of how much review the draft received. >=20 > The draft is at > http://tools.ietf.org/html/draft-ietf-core-link-format-02 Here is some feedback from your friendly neighborhood area director... 1. Let's provide references if we can for REST, 6LoWPAN, HTTP, ABNF, URN, Atom, etc. 2. As always, please spell out acronyms on first use (MTU, etc.). 3. I see that Klaus asked for a review of the coap: scheme on the uri-review list. We also need to request: 3a. A review of the Well-known 'core' URI on the appropriate list: https://www.ietf.org/mailman/listinfo/wellknown-uri-review 3b. A review of the 'hosts' relation type on the appropriate list: https://www.ietf.org/mailman/listinfo/link-relations 3c. A review of the link-format Internet media type on the appropriate li= st: https://www.ietf.org/mailman/listinfo/ietf-types 4. As I noted elsewhere in this thread, I think it would be very useful in the introduction to describe the motivations for this work, briefly sketch out a few use cases, and at a high level describe the assumed architecture (e.g., are all devices to be considered servers?). We can point to other documents that provide this information, naturally. 5. As Akbar Rahman pointed out, we might need to spell out more clearly how this work differs from RFC 5988. There is information about this in several sections of this I-D and I'm not sure that they are entirely consistent (but I will read them again). 6. Do we have good examples of resources that would be hosted somewhere other than the constrained server (device) and how those would be used in CoRE? If so, we might provide those in Section 2.1.2. 7. Section 2.1.3 states: It is not expected that all implementations will be able to derive useful information from explicitly anchored links. So how important is the feature? Is it useful in some kinds of implementations or deployments or environments but not others? 8. Section 2.2.5 defines the Observable 'obs' attribute. Does this definition in fact belong in draft-ietf-core-observe? 9. Do we need an IANA registry of CoRE-specific target attributes so that other specifications can add attributes in the future without updating this document? 10. In Section 3.1, what is "parmname"? I'm out of time right now, I might have more comments later or after tomorrow's call. Peter --=20 Peter Saint-Andre https://stpeter.im/ --------------ms060906010103090605040301 Content-Type: application/pkcs7-signature; name="smime.p7s" Content-Transfer-Encoding: base64 Content-Disposition: attachment; filename="smime.p7s" Content-Description: S/MIME Cryptographic Signature MIAGCSqGSIb3DQEHAqCAMIACAQExCzAJBgUrDgMCGgUAMIAGCSqGSIb3DQEHAQAAoIITzjCC BjQwggQcoAMCAQICASMwDQYJKoZIhvcNAQELBQAwfTELMAkGA1UEBhMCSUwxFjAUBgNVBAoT DVN0YXJ0Q29tIEx0ZC4xKzApBgNVBAsTIlNlY3VyZSBEaWdpdGFsIENlcnRpZmljYXRlIFNp Z25pbmcxKTAnBgNVBAMTIFN0YXJ0Q29tIENlcnRpZmljYXRpb24gQXV0aG9yaXR5MB4XDTA3 MTAyNDIxMDMzM1oXDTE3MTAyNDIxMDMzM1owgYwxCzAJBgNVBAYTAklMMRYwFAYDVQQKEw1T dGFydENvbSBMdGQuMSswKQYDVQQLEyJTZWN1cmUgRGlnaXRhbCBDZXJ0aWZpY2F0ZSBTaWdu aW5nMTgwNgYDVQQDEy9TdGFydENvbSBDbGFzcyAzIFByaW1hcnkgSW50ZXJtZWRpYXRlIENs aWVudCBDQTCCASIwDQYJKoZIhvcNAQEBBQADggEPADCCAQoCggEBALmjSW4SPiDKlAinvVeL ZOVfItiuP1aRHL530E7QUc9icCwL33+PH+Js1HAh8CgWFl34sOxx1FJyS/C4VLPRsqDfP72j 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From stpeter@stpeter.im Tue Jan 25 20:17:20 2011 Return-Path: X-Original-To: core@core3.amsl.com Delivered-To: core@core3.amsl.com Received: from localhost (localhost [127.0.0.1]) by core3.amsl.com (Postfix) with ESMTP id 400FD3A6910 for ; Tue, 25 Jan 2011 20:17:20 -0800 (PST) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -102.569 X-Spam-Level: X-Spam-Status: No, score=-102.569 tagged_above=-999 required=5 tests=[AWL=0.030, BAYES_00=-2.599, USER_IN_WHITELIST=-100] Received: from mail.ietf.org ([64.170.98.32]) by localhost (core3.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id fE05h-DuCvVg for ; Tue, 25 Jan 2011 20:17:19 -0800 (PST) Received: from stpeter.im (stpeter.im [207.210.219.233]) by core3.amsl.com (Postfix) with ESMTP id D0F573A689B for ; Tue, 25 Jan 2011 20:17:18 -0800 (PST) Received: from squire.local (dsl-251-175.dynamic-dsl.frii.net [216.17.251.175]) (Authenticated sender: stpeter) by stpeter.im (Postfix) with ESMTPSA id 7F95C400F6 for ; Tue, 25 Jan 2011 21:36:29 -0700 (MST) Message-ID: <4D3FA0EF.2080107@stpeter.im> Date: Tue, 25 Jan 2011 21:19:59 -0700 From: Peter Saint-Andre User-Agent: Mozilla/5.0 (Macintosh; U; Intel Mac OS X 10.5; en-US; rv:1.9.2.13) Gecko/20101207 Thunderbird/3.1.7 MIME-Version: 1.0 To: core WG X-Enigmail-Version: 1.1.1 OpenPGP: url=http://www.saint-andre.com/me/stpeter.asc Content-Type: multipart/signed; protocol="application/pkcs7-signature"; micalg=sha1; boundary="------------ms060907090507010808010507" Subject: [core] quick feedback on CoAP-04 X-BeenThere: core@ietf.org X-Mailman-Version: 2.1.9 Precedence: list List-Id: "Constrained RESTful Environments \(CoRE\) Working Group list" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 26 Jan 2011 04:17:20 -0000 This is a cryptographically signed message in MIME format. --------------ms060907090507010808010507 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: quoted-printable Overall this spec is looking solid, so thanks to the authors, contributors, and implementers! Here are just a few quick comments based on my review this evening before the conference call tomorrow. I've had a chance to read only the first half of the spec (through the end of Section 5, with a quick look at Section 6). I'll work to complete a more detailed review in the near future. 1. The early sections talk about the need to limit packet size, but Figure 4 looks like it violates those considerations with duplicate data:= | | | ACK [0xbc91] | | 4.04 Not Found | | (Token 0x72) | | "Not found" | |<-----------------+ | | This makes it appear that the server returns a packet containing both "4.04 Not Found" and "Not found". :) 2. Section 2 states: CoAP makes use of HTTP GET, PUT, POST and DELETE methods, with the semantics specified in Section 5.8. However, are we in fact using those HTTP methods exactly as they are defined in draft-ietf-httpbis-p2-semantics (or RFC 2616)? E.g., the description of CoAP GET in Section 5.8.1 of our spec is conceptually similar to the descriptions of HTTP GET in Section 9.3 of RFC 2616 and Section 7.3 of draft-ietf-httpbis-p2-semantics-12, but there are enough differences to perhaps confuse readers. See also Section 5.1: CoAP supports the basic methods of GET, POST, PUT, DELETE, which are easily mapped to [i.e., not exactly the same as] HTTP. 3. We might want to say a little bit about reasons why we would update the "Version" field from 1 to 2 (e.g., making changes that are not backward compatible). 4. Section 5.2 states: However, there is no generic Response Code indicating success, so a Response Code in the Success class that is unrecognized by an end-point can only be used to determine that the request was successful without any further details. How is that different from handling of a generic code for success? 5. It is unclear in Section 5.2.2. how the client correlates a deferred response with its original request (given that the server chooses a new Message ID when sending the response). Perhaps a forward pointer to the token stuff in Section 5.3 would help? 6. Section 5.4.5 states: Options are identified by an option number. Odd numbers indicate a critical option, while even numbers indicate an elective option. Is it expected that applications will be able to depend on that conventio= n? 7. Section 5.5 states: A response with a code indicating a Client or Server Error SHOULD include a brief human-readable diagnostic message as payload, explaining the error situation. This diagnostic message MUST be encoded using UTF-8 [RFC3629], more specifically using Net-Unicode form [RFC5198]. The Content-Type Option has no meaning and SHOULD NOT be included. Human-readable to whom? Do we need language tags? Typically anything that's human-readable needs to identify the language. 8. Are the URI handling rules in Section 6 entirely consistent with RFC 3986? (More to follow...) 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From cabo@tzi.org Tue Jan 25 22:42:29 2011 Return-Path: X-Original-To: core@core3.amsl.com Delivered-To: core@core3.amsl.com Received: from localhost (localhost [127.0.0.1]) by core3.amsl.com (Postfix) with ESMTP id 9B2FF3A6937 for ; Tue, 25 Jan 2011 22:42:29 -0800 (PST) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -106.749 X-Spam-Level: X-Spam-Status: No, score=-106.749 tagged_above=-999 required=5 tests=[AWL=-0.500, BAYES_00=-2.599, HELO_EQ_DE=0.35, RCVD_IN_DNSWL_MED=-4, USER_IN_WHITELIST=-100] Received: from mail.ietf.org ([64.170.98.32]) by localhost (core3.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id GAcfTU4O0Sjd for ; Tue, 25 Jan 2011 22:42:26 -0800 (PST) Received: from informatik.uni-bremen.de (mailhost.informatik.uni-bremen.de [IPv6:2001:638:708:30c9::12]) by core3.amsl.com (Postfix) with ESMTP id C65BC3A6932 for ; Tue, 25 Jan 2011 22:42:25 -0800 (PST) X-Virus-Scanned: amavisd-new at informatik.uni-bremen.de Received: from smtp-fb3.informatik.uni-bremen.de (smtp-fb3.informatik.uni-bremen.de [134.102.224.120]) by informatik.uni-bremen.de (8.14.3/8.14.3) with ESMTP id p0Q6jH4M023730; Wed, 26 Jan 2011 07:45:17 +0100 (CET) Received: from [192.168.10.52] (christoph.dagstuhl.de [192.76.146.51]) (using TLSv1 with cipher AES128-SHA (128/128 bits)) (No client certificate requested) by smtp-fb3.informatik.uni-bremen.de (Postfix) with ESMTPSA id 63C9BCB0; Wed, 26 Jan 2011 07:45:17 +0100 (CET) Mime-Version: 1.0 (Apple Message framework v1082) Content-Type: text/plain; charset=us-ascii From: Carsten Bormann In-Reply-To: <4D3FA0EF.2080107@stpeter.im> Date: Wed, 26 Jan 2011 07:45:45 +0100 Content-Transfer-Encoding: quoted-printable Message-Id: <230DDA5C-8327-4E79-80E3-8ABBF03C73E7@tzi.org> References: <4D3FA0EF.2080107@stpeter.im> To: Peter Saint-Andre X-Mailer: Apple Mail (2.1082) Cc: core WG Subject: Re: [core] quick feedback on CoAP-04 X-BeenThere: core@ietf.org X-Mailman-Version: 2.1.9 Precedence: list List-Id: "Constrained RESTful Environments \(CoRE\) Working Group list" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 26 Jan 2011 06:42:30 -0000 Hi Peter, another set of very useful comments! Let me just quickly point out a direction for solving these, so we can = turn them into tickets. > 1. The early sections talk about the need to limit packet size, but > Figure 4 looks like it violates those considerations with duplicate = data: >=20 > | | > | ACK [0xbc91] | > | 4.04 Not Found | > | (Token 0x72) | > | "Not found" | > |<-----------------+ > | | >=20 > This makes it appear that the server returns a packet containing both > "4.04 Not Found" and "Not found". :) It's probably not useful to add diagnostic information to a 404. But we do want to have that capability for other errors. More = generally: > 7. Section 5.5 states: >=20 > A response with a code indicating a Client or Server Error SHOULD > include a brief human-readable diagnostic message as payload, > explaining the error situation. This diagnostic message MUST be > encoded using UTF-8 [RFC3629], more specifically using Net-Unicode > form [RFC5198]. The Content-Type Option has no meaning and SHOULD > NOT be included. >=20 > Human-readable to whom? Do we need language tags? Typically anything > that's human-readable needs to identify the language. This is intended as diagnostic information, not for real humans (who = would need language tags), but for software engineers (who need to speak = the language of the RFC anyway). Like what you would put on an HTTP status line. We need to make this clearer. But maybe we have to develop some = examples first. (We also need to discuss diagnostic information in "empty" messages such = as RST; this would be a technical change.) (Is it even the right way to carry around diagnostics in otherwise = unused payload? We could use an option, but there goes another byte.) > 2. Section 2 states: >=20 > CoAP makes use of HTTP GET, PUT, POST and DELETE methods, with the > semantics specified in Section 5.8. >=20 > However, are we in fact using those HTTP methods exactly as they are > defined in draft-ietf-httpbis-p2-semantics (or RFC 2616)? E.g., the > description of CoAP GET in Section 5.8.1 of our spec is conceptually > similar to the descriptions of HTTP GET in Section 9.3 of RFC 2616 and > Section 7.3 of draft-ietf-httpbis-p2-semantics-12, but there are = enough > differences to perhaps confuse readers. >=20 > See also Section 5.1: >=20 > CoAP supports the basic methods of GET, POST, PUT, DELETE, which are > easily mapped to [i.e., not exactly the same as] HTTP. Make clearer that CoAP methods are almost, but not entirely unlike HTTP. > 3. We might want to say a little bit about reasons why we would update > the "Version" field from 1 to 2 (e.g., making changes that are not > backward compatible). Yes. > 4. Section 5.2 states: >=20 > However, there is no generic Response Code > indicating success, so a Response Code in the Success class that is > unrecognized by an end-point can only be used to determine that the > request was successful without any further details. >=20 > How is that different from handling of a generic code for success? We just don't have a generic one, i.e. all class 2 codes are currently = more specific than "success". We could change that. 2.00 was just kind of attractive for GET "this is a representation of = the resource you requested". OTOH, we already have had a request for a "neutral" success code for = POST. > 5. It is unclear in Section 5.2.2. how the client correlates a = deferred > response with its original request (given that the server chooses a = new > Message ID when sending the response). Perhaps a forward pointer to = the > token stuff in Section 5.3 would help? Yes. > 6. Section 5.4.5 states: >=20 > Options are identified by an option number. Odd numbers indicate a > critical option, while even numbers indicate an elective option. >=20 > Is it expected that applications will be able to depend on that = convention? It is not a convention, it is a feature of the protocol. Make that clearer in the text. > 8. Are the URI handling rules in Section 6 entirely consistent with = RFC > 3986? That was the intention (no ticket until we know where we failed :-) Gruesse, Carsten From cabo@tzi.org Tue Jan 25 22:52:25 2011 Return-Path: X-Original-To: core@core3.amsl.com Delivered-To: core@core3.amsl.com Received: from localhost (localhost [127.0.0.1]) by core3.amsl.com (Postfix) with ESMTP id 823F23A6942 for ; Tue, 25 Jan 2011 22:52:19 -0800 (PST) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -106.582 X-Spam-Level: X-Spam-Status: No, score=-106.582 tagged_above=-999 required=5 tests=[AWL=-0.333, BAYES_00=-2.599, HELO_EQ_DE=0.35, RCVD_IN_DNSWL_MED=-4, USER_IN_WHITELIST=-100] Received: from mail.ietf.org ([64.170.98.32]) by localhost (core3.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id bdLFH-8KD84B for ; Tue, 25 Jan 2011 22:52:16 -0800 (PST) Received: from informatik.uni-bremen.de (mailhost.informatik.uni-bremen.de [IPv6:2001:638:708:30c9::12]) by core3.amsl.com (Postfix) with ESMTP id DE05D3A692F for ; Tue, 25 Jan 2011 22:51:56 -0800 (PST) X-Virus-Scanned: amavisd-new at informatik.uni-bremen.de Received: from smtp-fb3.informatik.uni-bremen.de (smtp-fb3.informatik.uni-bremen.de [134.102.224.120]) by informatik.uni-bremen.de (8.14.3/8.14.3) with ESMTP id p0Q6sl9u025400; Wed, 26 Jan 2011 07:54:47 +0100 (CET) Received: from [192.168.10.52] (christoph.dagstuhl.de [192.76.146.51]) (using TLSv1 with cipher AES128-SHA (128/128 bits)) (No client certificate requested) by smtp-fb3.informatik.uni-bremen.de (Postfix) with ESMTPSA id 9FD21CB2; Wed, 26 Jan 2011 07:54:47 +0100 (CET) Mime-Version: 1.0 (Apple Message framework v1082) Content-Type: text/plain; charset=us-ascii From: Carsten Bormann In-Reply-To: Date: Wed, 26 Jan 2011 07:55:16 +0100 Content-Transfer-Encoding: quoted-printable Message-Id: <0840325E-DF84-4B33-A618-435D66CE371D@tzi.org> References: <20110125212845.11A853A6881@core3.amsl.com> To: "Angelo P. Castellani" X-Mailer: Apple Mail (2.1082) Cc: Michele Zorzi , Nicola Bui , core Subject: Re: [core] New Version Notification for draft-castellani-core-http-coap-mapping-00 X-BeenThere: core@ietf.org X-Mailman-Version: 2.1.9 Precedence: list List-Id: "Constrained RESTful Environments \(CoRE\) Working Group list" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 26 Jan 2011 06:52:25 -0000 Angelo, I think it is a great idea to have such a draft, because much of the = information here will be informative, and the protocol definition should = only contain those things that are normative (i.e., that we expect from = every HTTP/CoAP intermediary). The most important aspect here is what can such a mapper do = independently of knowledge about the application, and where do we need = genuine knowledge of that (i.e., the mapper becomes an application = gateway). E.g., it would be nice if we came up with a convention for collecting = the resource representations returned to the HTTP world from a CoAP = multicast request. Such as a generic table/hash/dictionary thing (maybe = we could use JSON?). But some mappers will want to use more knowledge = about the application to generate a more concise result (e.g., turning = multicast into anycast). Looking forward to a detailed review... Will you be in today's phone call? Gruesse, Carsten From angelo.castellani@gmail.com Wed Jan 26 02:12:06 2011 Return-Path: X-Original-To: core@core3.amsl.com Delivered-To: core@core3.amsl.com Received: from localhost (localhost [127.0.0.1]) by core3.amsl.com (Postfix) with ESMTP id 9F6023A6989 for ; Wed, 26 Jan 2011 02:12:06 -0800 (PST) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -2.602 X-Spam-Level: X-Spam-Status: No, score=-2.602 tagged_above=-999 required=5 tests=[AWL=0.375, BAYES_00=-2.599, FM_FORGED_GMAIL=0.622, RCVD_IN_DNSWL_LOW=-1] Received: from mail.ietf.org ([64.170.98.32]) by localhost (core3.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id gS6Z6sEXNUTH for ; Wed, 26 Jan 2011 02:12:05 -0800 (PST) Received: from mail-qy0-f172.google.com (mail-qy0-f172.google.com [209.85.216.172]) by core3.amsl.com (Postfix) with ESMTP id 5C0EB3A697C for ; Wed, 26 Jan 2011 02:12:05 -0800 (PST) Received: by qyk34 with SMTP id 34so5185959qyk.10 for ; Wed, 26 Jan 2011 02:15:05 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma; h=domainkey-signature:mime-version:sender:in-reply-to:references:from :date:x-google-sender-auth:message-id:subject:to:cc:content-type :content-transfer-encoding; bh=50tKawLmxxtGvy0NeDh6/G+xBrTk2o+7pfIQf2OSS5M=; b=fmBiqrD9CMheU3eulM56CU7xEWdSO/CiFaWvPQPidDzbFeJq9I+OTnawuc5e09o8IS MiZbz1AtyM6lZskf2FBa3lV8cMia6/axcmLs2Dauohln+MJy0JvcyIYTXPdGNOnx25Kv rPSjUVqen8FA2g+8cDDIXIIek9462r4E7MCxU= DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=mime-version:sender:in-reply-to:references:from:date :x-google-sender-auth:message-id:subject:to:cc:content-type :content-transfer-encoding; b=bq0xlNvpE1KSFk2fF5Mp9ahh7a42OavNCX/WZt0Eac5Yq4lDVEUMiaDbjgIFAdpj57 WItdJ5ADuMmZhNUuyfS/a+2hDGrRW+QkzWDR8yX1KGGDM5ZNHMCi7tuAvEBW53y9WsnY z4OCYpt5+gOXur68A+tDwy4UQAQCSpLeSWGo0= Received: by 10.229.101.206 with SMTP id d14mr264183qco.32.1296036905130; Wed, 26 Jan 2011 02:15:05 -0800 (PST) MIME-Version: 1.0 Sender: angelo.castellani@gmail.com Received: by 10.229.218.69 with HTTP; Wed, 26 Jan 2011 02:14:44 -0800 (PST) In-Reply-To: <0840325E-DF84-4B33-A618-435D66CE371D@tzi.org> References: <20110125212845.11A853A6881@core3.amsl.com> <0840325E-DF84-4B33-A618-435D66CE371D@tzi.org> From: "Angelo P. Castellani" Date: Wed, 26 Jan 2011 11:14:44 +0100 X-Google-Sender-Auth: tq6vYA8PfI3y-vdQwacehHRPHSQ Message-ID: To: Carsten Bormann Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: quoted-printable Cc: Michele Zorzi , Nicola Bui , core Subject: Re: [core] New Version Notification for draft-castellani-core-http-coap-mapping-00 X-BeenThere: core@ietf.org X-Mailman-Version: 2.1.9 Precedence: list List-Id: "Constrained RESTful Environments \(CoRE\) Working Group list" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 26 Jan 2011 10:12:06 -0000 Thanks for the quick feedback. Some responses inline: > I think it is a great idea to have such a draft, because much of the info= rmation here will be informative, and the protocol definition should only c= ontain those things that are normative (i.e., that we expect from every HTT= P/CoAP intermediary). We agree that the draft should be informational, and if a normative part is required should be kept separate from this document. > The most important aspect here is what can such a mapper do independently= of knowledge about the application, and where do we need genuine knowledge= of that (i.e., the mapper becomes an application gateway). My opinion is that a transparent proxy can be realized, if this scenario/requirement is considered in the design of CoAP. Probably right now some issues are present in the current CoAP release, we will try to insert a more detailed analysis/discussion on this in the next planned version. > E.g., it would be nice if we came up with a convention for collecting the= resource representations returned to the HTTP world from a CoAP multicast = request. =A0Such as a generic table/hash/dictionary thing (maybe we could u= se JSON?). =A0But some mappers will want to use more knowledge about the ap= plication to generate a more concise result (e.g., turning multicast into a= nycast). Multicast is a very important feature required for a constrained crowded environment. > Looking forward to a detailed review... We look forward for a review, e.g. about Section 4 on multicast. > Will you be in today's phone call? Sure, we will be there. Best, Angelo & Salvatore From zach@sensinode.com Wed Jan 26 03:18:11 2011 Return-Path: X-Original-To: core@core3.amsl.com Delivered-To: core@core3.amsl.com Received: from localhost (localhost [127.0.0.1]) by core3.amsl.com (Postfix) with ESMTP id 3631F3A6987 for ; Wed, 26 Jan 2011 03:18:11 -0800 (PST) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -3.599 X-Spam-Level: X-Spam-Status: No, score=-3.599 tagged_above=-999 required=5 tests=[BAYES_00=-2.599, RCVD_IN_DNSWL_LOW=-1] Received: from mail.ietf.org ([64.170.98.32]) by localhost (core3.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id Xg59ro0cKZcY for ; Wed, 26 Jan 2011 03:18:09 -0800 (PST) Received: from auth-smtp.nebula.fi (auth-smtp.nebula.fi [217.30.180.105]) by core3.amsl.com (Postfix) with ESMTP id 009C33A6832 for ; Wed, 26 Jan 2011 03:18:08 -0800 (PST) Received: from [213.145.205.239] ([213.145.205.239]) (authenticated bits=0) by auth-smtp.nebula.fi (8.13.4/8.13.4) with ESMTP id p0QBL0DZ011417 (version=TLSv1/SSLv3 cipher=AES128-SHA bits=128 verify=NO); Wed, 26 Jan 2011 13:21:00 +0200 Mime-Version: 1.0 (Apple Message framework v1082) Content-Type: multipart/signed; boundary=Apple-Mail-55--93917820; protocol="application/pkcs7-signature"; micalg=sha1 From: Zach Shelby In-Reply-To: Date: Wed, 26 Jan 2011 13:21:01 +0200 Message-Id: References: <91473B88-3BDF-404D-947C-A717A3399243@cisco.com> To: "Angelo P. Castellani" X-Mailer: Apple Mail (2.1082) Cc: core WG Subject: Re: [core] WGLC for draft-ietf-core-link-format-02 X-BeenThere: core@ietf.org X-Mailman-Version: 2.1.9 Precedence: list List-Id: "Constrained RESTful Environments \(CoRE\) Working Group list" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 26 Jan 2011 11:18:11 -0000 --Apple-Mail-55--93917820 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset=us-ascii Hi Angelo, Very valid questions. As an overall comment, we need to keep in mind = that the title of this draft is "CoRE Link Format", which is its main = purpose. It defines a way to express link relations appropriate for = CoRE, as part of the Web Linking framework defined in RFC5988. By no = means is this draft sufficient as a complete resource discovery solution = for some application domain. Just as RFC5988 doesn't define how you = should use link relations (although it does list some relations that are = already in use), just how you can express them.=20 I agree with Carsten and Peter that some more examples in the draft = could help to illustrate how this can be used, I think we can consider = that a useful ticket. Furthermore, I would hope to see some = informational drafts from different applications on how they are = applying this in practice. = http://tools.ietf.org/id/draft-vanderstok-core-bc-02.txt already is a = good start for building automation.=20 What application do you have in mind?=20 Here are some comments in-line: On Jan 20, 2011, at 12:23 PM, Angelo P. Castellani wrote: > Probably I've missed something, however I have the feeling that the > /.well-known/core URI is useful mainly for an human interaction with a > CoAP server. That is not the intention at all, although that is something people tend = to use it for when playing with early implementations.=20 > Link format could be certainly an useful technique for M2M > applications, and in the current draft some information useful for > that kind of interaction is present (content-type, interface > description, ..). That is exactly the main intention of the draft, which is in line with = RFC5988. > In contrast to this the /.well-known/core URI seems hardly useful by a > machine, because it will provide a list of resources.. For link relations to be useful for anything, you need to find out about = them. In RFC5988 one way of finding out about links related to a web = page is via the HTTP link header. In this draft we specify = /.well-known/core for a similar purpose, except here we find out about = all the link relations related to a server all at once (or a filtered = subset of them). > For what I can see written in the draft, I cannot understand why a > machine could start a discovery procedure to see the whole content in > the network... Moreover this procedure leaves space for the known > amplification attacks pointed out in the CoAP draft. Not sure I understand the question. How you would use this draft for = resource discovery will depend completely on your application use case. = Home automation and building automation people for example have specific = ways of using this in mind. In large scale M2M systems (with one or more = central servers) we use the CoRE Link Format as a way to register = resources with a resource directory. Each application will need to define how it uses discovery = (peer-to-peer? Local resource directory?), and most importantly, what = the naming is for that application. =20 > In my opinion, machines are instructed to do specific tasks, and for > that tasks they probably will want to start a *service-specific* > discovery in the network. By defining your setup for discovery, along with naming for your = resources used in services, the CoRE Link Format can be used for exactly = that.=20 >=20 > The draft tells that the /.well-known/core URI is a MUST. "A server implementing this specification MUST support this resource on the default port appropriate for the protocol for the purpose of resource discovery." Which means it is a MUST if you implement that specification, not CoAP = in general. So not every CoAP has to be discoverable, and in some use = cases they surely wouldn't be. > Probably the real question is: Are humans supposed to use CoAP = directly? >=20 > I don't think so, and for this reason I think that the > /.well-known/core URI is not very useful at all. I am not sure how you came to the conclusion of relating humans with = /.well-known/core. The CoRE Link Format is a format meant to be used = between machines, I hope I helped to clarify that for you. Of course as = it is just a format, you need to define the common naming that your = machines understand. Zach >=20 > I apologize for the late comment, I have had right now a more clear > idea about this... >=20 > Best, > Angelo >=20 > On Wed, Jan 12, 2011 at 16:42, Cullen Jennings = wrote: >>=20 >> I would like to start the working group last call for = draft-ietf-core-link-format-02. Please review the draft and send = comments to list by the end of the day Jan 26. If you review the draft = and have no comments, send an email to the list or to the chairs so we = have an idea of how much review the draft received. >>=20 >> The draft is at = http://tools.ietf.org/html/draft-ietf-core-link-format-02 >>=20 >> Thank you, >>=20 >> Cullen & Carsten >>=20 >> _______________________________________________ >> core mailing list >> core@ietf.org >> https://www.ietf.org/mailman/listinfo/core >>=20 > _______________________________________________ > core mailing list > core@ietf.org > https://www.ietf.org/mailman/listinfo/core --=20 Zach Shelby, Chief Nerd, Sensinode Ltd. http://zachshelby.org - My blog "On the Internet of Things" http://6lowpan.net - My book "6LoWPAN: The Wireless Embedded Internet" Mobile: +358 40 7796297 --Apple-Mail-55--93917820 Content-Disposition: attachment; filename=smime.p7s Content-Type: application/pkcs7-signature; name=smime.p7s Content-Transfer-Encoding: base64 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with ESMTP id 9C8203A6830 for ; Wed, 26 Jan 2011 03:18:36 -0800 (PST) X-AuditID: c1b4fb3d-b7b89ae0000036a3-f3-4d4003bf561b Received: from esessmw0247.eemea.ericsson.se (Unknown_Domain [153.88.253.125]) by mailgw10.se.ericsson.net (Symantec Mail Security) with SMTP id 78.36.13987.FB3004D4; Wed, 26 Jan 2011 12:21:35 +0100 (CET) Received: from mail.lmf.ericsson.se (153.88.115.8) by esessmw0247.eemea.ericsson.se (153.88.115.94) with Microsoft SMTP Server id 8.2.234.1; Wed, 26 Jan 2011 12:21:35 +0100 Received: from nomadiclab.lmf.ericsson.se (nomadiclab.lmf.ericsson.se [131.160.33.3]) by mail.lmf.ericsson.se (Postfix) with ESMTP id 3E1B925CC for ; Wed, 26 Jan 2011 13:21:35 +0200 (EET) Received: from nomadiclab.lmf.ericsson.se (localhost [127.0.0.1]) by nomadiclab.lmf.ericsson.se (Postfix) with ESMTP id 0173450720 for ; Wed, 26 Jan 2011 13:21:35 +0200 (EET) Received: from Salvatore-Loretos-MacBook-Pro.local (localhost [127.0.0.1]) by nomadiclab.lmf.ericsson.se (Postfix) with ESMTP id 8506D4EE9C for ; Wed, 26 Jan 2011 13:21:34 +0200 (EET) Message-ID: <4D4003BE.9070406@ericsson.com> Date: Wed, 26 Jan 2011 12:21:34 +0100 From: Salvatore Loreto User-Agent: Mozilla/5.0 (Macintosh; U; Intel Mac OS X 10.6; en-US; rv:1.9.2.13) Gecko/20101207 Thunderbird/3.1.7 MIME-Version: 1.0 To: core@ietf.org References: <91473B88-3BDF-404D-947C-A717A3399243@cisco.com> In-Reply-To: <91473B88-3BDF-404D-947C-A717A3399243@cisco.com> Content-Type: text/plain; charset="ISO-8859-1"; format=flowed Content-Transfer-Encoding: 7bit X-Virus-Scanned: ClamAV using ClamSMTP X-Brightmail-Tracker: AAAAAA== Subject: Re: [core] WGLC for draft-ietf-core-link-format-02 X-BeenThere: core@ietf.org X-Mailman-Version: 2.1.9 Precedence: list List-Id: "Constrained RESTful Environments \(CoRE\) Working Group list" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 26 Jan 2011 11:18:38 -0000 On 1/12/11 4:42 PM, Cullen Jennings wrote: > I would like to start the working group last call for draft-ietf-core-link-format-02. Please review the draft and send comments to list by the end of the day Jan 26. If you review the draft and have no comments, send an email to the list or to the chairs so we have an idea of how much review the draft received. > > The draft is at http://tools.ietf.org/html/draft-ietf-core-link-format-02 > > Thank you, > > Cullen& Carsten > > _______________________________________________ > core mailing list > core@ietf.org > https://www.ietf.org/mailman/listinfo/core Hi there, I have reviewed the draft; below few comments Section 2 -------- as a general comment Section 2 should be expanded to explain better how the link Format is used in CORE, several points are vague and could lead to misinterpretations. the following statement is not clear: It is expected that resources discovered in the CoRE Link Format may also be made available in alternative formats on the greater Internet. is there already some thought about those alternative formats? or "alternative" only means that the format is aspect to follow the Web Linking (as specified in RFC5988) in the greater Internet? Section 2.1 define the "hosts" relation time (why "hosts" and not "host"?) which indicates that the resource is hosted by the server from which the link document was request; I have some doubts about the context in the case of a multicast request, section 2.1.1 states: The context URI of a link (also called base URI in [RFC3986]) conveyed in the CoRE Link Format is by default built from the scheme and authority parts of the target URI. In the absence of this information in the target URI, the context URI is built from the scheme and authority that was used for referencing the resource returning the set of links, replacing the path with an empty path. Thus by default links can be thought of as describing a target resource hosted by the server. I don't think that the above applies in the case of a multicast request, or at least it should be explained better how it applies. Section 2.1.1. Resource name 'n' attribute ----------------------------------- IMO "application-specific semantic name" is a bit vague and could lead a some interoperability problem Section 2.2.4 ----------- The maximum size estimate attribute "sz" gives an indication of the maximum size of the link indicated by the target URI. s/link/resource cheers /Sal -- Salvatore Loreto www.sloreto.com From zach@sensinode.com Wed Jan 26 03:38:55 2011 Return-Path: X-Original-To: core@core3.amsl.com Delivered-To: core@core3.amsl.com Received: from localhost (localhost [127.0.0.1]) by core3.amsl.com (Postfix) with ESMTP id 6C60B3A69B4 for ; Wed, 26 Jan 2011 03:38:55 -0800 (PST) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -3.599 X-Spam-Level: X-Spam-Status: No, score=-3.599 tagged_above=-999 required=5 tests=[BAYES_00=-2.599, RCVD_IN_DNSWL_LOW=-1] Received: from mail.ietf.org ([64.170.98.32]) by localhost (core3.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id bcahUalimt5x for ; Wed, 26 Jan 2011 03:38:54 -0800 (PST) Received: from auth-smtp.nebula.fi (auth-smtp.nebula.fi [217.30.180.105]) by core3.amsl.com (Postfix) with ESMTP id ADC8E3A69B2 for ; Wed, 26 Jan 2011 03:38:53 -0800 (PST) Received: from [213.145.205.239] ([213.145.205.239]) (authenticated bits=0) by auth-smtp.nebula.fi (8.13.4/8.13.4) with ESMTP id p0QBfooL021759 (version=TLSv1/SSLv3 cipher=AES128-SHA bits=128 verify=NO); Wed, 26 Jan 2011 13:41:50 +0200 Mime-Version: 1.0 (Apple Message framework v1082) Content-Type: multipart/signed; boundary=Apple-Mail-56--92667705; protocol="application/pkcs7-signature"; micalg=sha1 From: Zach Shelby In-Reply-To: Date: Wed, 26 Jan 2011 13:41:52 +0200 Message-Id: References: <91473B88-3BDF-404D-947C-A717A3399243@cisco.com> To: "Rahman, Akbar" X-Mailer: Apple Mail (2.1082) Cc: core WG Subject: Re: [core] WGLC for draft-ietf-core-link-format-02 X-BeenThere: core@ietf.org X-Mailman-Version: 2.1.9 Precedence: list List-Id: "Constrained RESTful Environments \(CoRE\) Working Group list" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 26 Jan 2011 11:38:55 -0000 --Apple-Mail-56--92667705 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset=us-ascii Akbar, Thanks for the review.=20 On Jan 25, 2011, at 7:35 AM, Rahman, Akbar wrote: > Hi Cullen/Carsten, >=20 >=20 > I read the draft and think it is in good shape, and I support passing = of the working group last call for the draft. I did, however, have some = questions and comments on the draft as follows: >=20 >=20 > 1) The draft refers to RFC5988 (Web Linking) for the original = definition of Link Header. In that RFC, the Link Header field is = clearly defined in, for example, section 5 of the RFC. This draft takes = RFC5988 definition of Link Header and adapts it for CORE. But some = important points in this adaptation and extension of Link Headers were = not totally clear to me. For example, do the cardinality rules of Link = Headers from RFC5988 still apply to CORE? =20 Yes, the intention is that Section 5 applies to CoRE. The exception is = that the "Link:" header is not included and several new link-extensions = have been defined. =20 > A general suggestion would be to clarify section 2 of this draft to = better explain the principles of how Link Format is used in CORE. Good comment, I think we should make a ticket to do that. Right now this = concentrates on explaining how we technically apply Web Linking in CoRE. = But some more plain language explanation on how we use it would surely = help. > 2) Some good examples of how the CORE Link Format is embedded in the = payload are given in section 4. =20 > But some normative text should be added to specify precisely how the = Link Format delimited and identified in the payload. The normative rules of the Link Format are described in Section 5 of = RFC5988 and applied to CoRE in Section 2 of this document. I am not sure = what else we could define, ideas?=20 > Nits: >=20 > 3) If the CORE Link Format is embedded in the payload why is there a = need to register for the "hosts" relation type in section 6.2? (I'm = probably missing something obvious here.) Web Linking is a tricky concept. But it involves a Target URI being = related to a Context URI - which is a link. In the HTTP Link Header the = document you just requested is the Context URI by default. In CoRE, the = Context URI by default is the Scheme+Authority you used to request = /.well-known/core (in other words that server).=20 If we would include links there without any relation, they would be = meaningless. The minimum goal in CoRE is to be able to express the link = relation: This server hosts a resource=20 Where this server is the default Context URI, and a resource is the = target URI between brackets in the link format. Although we first tried = to use "service" from RFC5988, the existing relation types didn't = describe this very well. For that reason we defined a new relation = "hosts" which correctly defines this relationship. By making it the = default, we were able to save some overhead. =20 The CoRE link format can be used to express any of the other relation = types (or new extensions) defined in RFC5988, also also relations = between arbitrary URIs. In that way this can fully be used to realize = the Web Linking concept. >=20 > 4) Shouldn't "RFC 5785" be a normative reference? Good point, I will check that. Zach >=20 >=20 > Sincerely, >=20 >=20 >=20 > Akbar >=20 > ________________________________ >=20 > From: core-bounces@ietf.org on behalf of Cullen Jennings > Sent: Wed 1/12/2011 10:42 AM > To: core WG > Subject: [core] WGLC for draft-ietf-core-link-format-02 >=20 >=20 >=20 >=20 > I would like to start the working group last call for = draft-ietf-core-link-format-02. Please review the draft and send = comments to list by the end of the day Jan 26. If you review the draft = and have no comments, send an email to the list or to the chairs so we = have an idea of how much review the draft received. >=20 > The draft is at = http://tools.ietf.org/html/draft-ietf-core-link-format-02 >=20 > Thank you, >=20 > Cullen & Carsten >=20 > _______________________________________________ > core mailing list > core@ietf.org > https://www.ietf.org/mailman/listinfo/core >=20 >=20 > _______________________________________________ > core mailing list > core@ietf.org > https://www.ietf.org/mailman/listinfo/core --=20 Zach Shelby, Chief Nerd, Sensinode Ltd. http://zachshelby.org - My blog "On the Internet of Things" http://6lowpan.net - My book "6LoWPAN: The Wireless Embedded Internet" Mobile: +358 40 7796297 --Apple-Mail-56--92667705 Content-Disposition: attachment; filename=smime.p7s Content-Type: application/pkcs7-signature; name=smime.p7s Content-Transfer-Encoding: base64 MIAGCSqGSIb3DQEHAqCAMIACAQExCzAJBgUrDgMCGgUAMIAGCSqGSIb3DQEHAQAAoIIKGzCCBMww 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lJO0MFXzsLMEbVahxSTZQ2lpV3K0s35o2DgTCBfxq5NVqvO6DeCFyzJhKIEAAAAAAAA= --Apple-Mail-56--92667705-- From trac@tools.ietf.org Wed Jan 26 03:46:03 2011 Return-Path: X-Original-To: core@core3.amsl.com Delivered-To: core@core3.amsl.com Received: from localhost (localhost [127.0.0.1]) by core3.amsl.com (Postfix) with ESMTP id C6AF63A69AE for ; Wed, 26 Jan 2011 03:46:03 -0800 (PST) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -102.589 X-Spam-Level: X-Spam-Status: No, score=-102.589 tagged_above=-999 required=5 tests=[AWL=0.011, BAYES_00=-2.599, NO_RELAYS=-0.001, USER_IN_WHITELIST=-100] Received: from mail.ietf.org ([64.170.98.32]) by localhost (core3.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id 7reG0fYAuOYt for ; Wed, 26 Jan 2011 03:46:02 -0800 (PST) Received: from zinfandel.tools.ietf.org (unknown [IPv6:2001:1890:1112:1::2a]) by core3.amsl.com (Postfix) with ESMTP id 714D33A69AC for ; Wed, 26 Jan 2011 03:46:02 -0800 (PST) Received: from localhost ([::1] helo=zinfandel.tools.ietf.org) by zinfandel.tools.ietf.org with esmtp (Exim 4.72) (envelope-from ) id 1Pi3rx-00062y-3p; Wed, 26 Jan 2011 03:49:01 -0800 MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 8bit From: "core issue tracker" X-Trac-Version: 0.11.7 Precedence: bulk Auto-Submitted: auto-generated X-Mailer: Trac 0.11.7, by Edgewall Software To: zach@sensinode.com X-Trac-Project: core Date: Wed, 26 Jan 2011 11:49:01 -0000 X-URL: http://tools.ietf.org/core/ X-Trac-Ticket-URL: http://trac.tools.ietf.org/wg/core/trac/ticket/89 Message-ID: <057.1feee7c1a2bc38c2d343f8147f109134@tools.ietf.org> X-Trac-Ticket-ID: 89 X-SA-Exim-Connect-IP: ::1 X-SA-Exim-Rcpt-To: zach@sensinode.com, core@ietf.org X-SA-Exim-Mail-From: trac@tools.ietf.org X-SA-Exim-Scanned: No (on zinfandel.tools.ietf.org); SAEximRunCond expanded to false Cc: core@ietf.org Subject: [core] link-format #89 (new): Use case examples X-BeenThere: core@ietf.org X-Mailman-Version: 2.1.9 List-Id: "Constrained RESTful Environments \(CoRE\) Working Group list" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 26 Jan 2011 11:46:03 -0000 #89: Use case examples Angelo, Carsten and Peter pointed out that use case examples (in addition to the link format example of Section 4) would be a useful addition to the draft. Currently it is difficult for a reader not familiar with Web Linking to envision how this could be used for M2M resource discovery. Possible use cases could include (please suggest others): Commissioning Building automation Home automation M2M resource registration -- --------------------------------+------------------------------------------- Reporter: zach@… | Owner: zach@… Type: enhancement | Status: new Priority: trivial | Milestone: Component: link-format | Version: Severity: - | Keywords: --------------------------------+------------------------------------------- Ticket URL: core From angelo.castellani@gmail.com Wed Jan 26 03:46:19 2011 Return-Path: X-Original-To: core@core3.amsl.com Delivered-To: core@core3.amsl.com Received: from localhost (localhost [127.0.0.1]) by core3.amsl.com (Postfix) with ESMTP id 5F93D3A69B0 for ; Wed, 26 Jan 2011 03:46:19 -0800 (PST) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -2.62 X-Spam-Level: X-Spam-Status: No, score=-2.62 tagged_above=-999 required=5 tests=[AWL=0.357, BAYES_00=-2.599, FM_FORGED_GMAIL=0.622, RCVD_IN_DNSWL_LOW=-1] Received: from mail.ietf.org ([64.170.98.32]) by localhost (core3.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id NLJ2rUdW8BYr for ; Wed, 26 Jan 2011 03:46:18 -0800 (PST) Received: from mail-qy0-f179.google.com (mail-qy0-f179.google.com [209.85.216.179]) by core3.amsl.com (Postfix) with ESMTP id 158833A69AC for ; Wed, 26 Jan 2011 03:46:18 -0800 (PST) Received: by qyj19 with SMTP id 19so876506qyj.10 for ; Wed, 26 Jan 2011 03:49:18 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma; h=domainkey-signature:mime-version:sender:from:date :x-google-sender-auth:message-id:subject:to:cc:content-type; bh=gZP5ULOzqiGRQilIG89UR8Rmg7ld1Vyor5KKjQMJsWw=; b=GfFNbSaipc7s/ltyt8FuUu8VtwIqBWhVfpJpAcVuQCf2f2yf7MFWxqJb1M9qdjlCIN s3KFkbbuxGgbZ2xmQ4vbTvMSRmFzb+tvTEsMbBABRIV3ANcjPxOfud5hj7hTsmtcUGTB lZ48fzLFknIhAoT1wJ4j4VyPhqjJtFbxtCRlg= DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=mime-version:sender:from:date:x-google-sender-auth:message-id :subject:to:cc:content-type; b=S8mMqI8ggRFHblpffZCcR0ivsI7H4SvwrSGuoxR2p8ymTJ/6V4T8/4ZMVHuYtUHDYB M9KyGPgw6cO5tWgWAehzdbDOTBYRYmR3qwjxsniJefmmRX3K0t1J891+gebVpFA39BpH GGhS6Wcube8j8OlY1jViJYcYI0kDLx2kipFeo= Received: by 10.229.82.8 with SMTP id z8mr326429qck.108.1296042557999; Wed, 26 Jan 2011 03:49:17 -0800 (PST) MIME-Version: 1.0 Sender: angelo.castellani@gmail.com Received: by 10.229.218.69 with HTTP; Wed, 26 Jan 2011 03:48:57 -0800 (PST) From: "Angelo P. Castellani" Date: Wed, 26 Jan 2011 12:48:57 +0100 X-Google-Sender-Auth: ZUbADQnH42Ze6l4oGFwwWUgT_90 Message-ID: To: core Content-Type: text/plain; charset=ISO-8859-1 Cc: Michele Zorzi , Nicola Bui Subject: [core] Message ID & Token: high overhead? X-BeenThere: core@ietf.org X-Mailman-Version: 2.1.9 Precedence: list List-Id: "Constrained RESTful Environments \(CoRE\) Working Group list" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 26 Jan 2011 11:46:19 -0000 For convenience of reading, I cut-and-paste some definitions from the CoAP-04 release: ################### Message ID: 16-bit unsigned integer. Used for the detection of message duplication, and to match messages of type Acknowledgement/Reset and messages of type Confirmable. See Section 4 for Message ID generation rules and how messages are matched. ################### 5.10.1. Token The Token Option is used to match a response with a request. Every request has a client-generated token which the server MUST echo in any response. A token is intended for use as a client-local identifier for differentiating between concurrent requests. A client SHOULD generate tokens in a way that tokens currently in use are unique. An end-point receiving a token MUST treat it as opaque and make no assumptions about its format. A default value of a zero-length token is assumed in the absence of the option. This option is "critical". It MUST NOT occur more than once. ################### By reading the Message ID definition, it should be useful for two main reasons: - avoid duplication - match "transaction"-level request/responses (CON/ACKs) Following the Section 5.10.1 definition, Token is mainly required to match concurrent application-level sessions. Please correct me if this assumptions are not valid. I know that Token is required for other "parts" of the specification (e.g. -observe & -block), but right now I am considering only the CoAP-04 release. Message ID overhead is 2 bytes, and Token overhead ranges from 2 bytes to 9 bytes. In my opinion and if my assumptions are right, the overhead related to concurrency matching is quite high. A sample analysis is briefly outlined in the following part of the message, by evaluating the example present in Section 2.2. The example is related to the immediate response sample, however the same considerations can be applied to the deferred response example. | CON [0xbc90] | | CON [0xbc91] | | GET /temperature | | GET /temperature | | (Token 0x71) | | (Token 0x72) | +----------------->| +----------------->| Base message: 4 bytes (2 bytes of message ID) Token: 2 bytes URI-Path: 12 bytes Overhead analysis: - URI 66% - concurrency 22% - base/other 11% | ACK [0xbc90] | | ACK [0xbc91] | | 2.00 OK | | 4.04 Not Found | | (Token 0x71) | | (Token 0x72) | | "22.5 C" | | "Not found" | |<-----------------+ |<-----------------+ Base message: 4 bytes (2 bytes of message ID) Token: 2 bytes Content: 6 bytes Overhead analysis: - content 50% - concurrency 33% - base/other 16% Obviously vendors/implementors can enhance the URI representation and content representation, in order to reduce the overhead. Example: # URI can be "/t" using 2 bytes # Content can be represented using various smaller formats (2 bytes?) Using this "optimizations" the ratios will change respectively: - concurrency 50% - base/other 25% - URI 25% - concurrency 50% - base/other 25% - content 25% Following this reasoning seems that concurrency has a great impact in the current CoAP overhead. However in my opinion duplicate message detection can be realized using a cross-layer optimization, by exploiting the checksum field of UDP (a similar cross-layer optimization has been used to drop the need for Content-Length). If this duplicate detection technique is suitable, then in my opinion and with some further reasoning about concurrency detection, the "Message ID" field can be sufficient to operate the matching. Moreover further cross-layer optimizations are available to soften the concurrency matching requirement: source IP address and source UDP port are very useful to this end. However Token option is used by other WG specifications, probably a deeper investigation of that proposals can help. In Appendix A of the recently released document "draft-castellani-core-http-coap-mapping-00", some alternatives are discussed that remove or readdress the need for Token option. Best, Angelo From trac@tools.ietf.org Wed Jan 26 03:48:58 2011 Return-Path: X-Original-To: core@core3.amsl.com Delivered-To: core@core3.amsl.com Received: from localhost (localhost [127.0.0.1]) by core3.amsl.com (Postfix) with ESMTP id E10DF3A69AB for ; Wed, 26 Jan 2011 03:48:58 -0800 (PST) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -102.589 X-Spam-Level: X-Spam-Status: No, score=-102.589 tagged_above=-999 required=5 tests=[AWL=0.011, BAYES_00=-2.599, NO_RELAYS=-0.001, USER_IN_WHITELIST=-100] Received: from mail.ietf.org ([64.170.98.32]) by localhost (core3.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id 3zbGCkvd0C2T for ; Wed, 26 Jan 2011 03:48:57 -0800 (PST) Received: from zinfandel.tools.ietf.org (unknown [IPv6:2001:1890:1112:1::2a]) by core3.amsl.com (Postfix) with ESMTP id E82F03A6987 for ; Wed, 26 Jan 2011 03:48:57 -0800 (PST) Received: from localhost ([::1] helo=zinfandel.tools.ietf.org) by zinfandel.tools.ietf.org with esmtp (Exim 4.72) (envelope-from ) id 1Pi3uo-0006Iq-I8; Wed, 26 Jan 2011 03:51:58 -0800 MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 8bit From: "core issue tracker" X-Trac-Version: 0.11.7 Precedence: bulk Auto-Submitted: auto-generated X-Mailer: Trac 0.11.7, by Edgewall Software To: zach@sensinode.com X-Trac-Project: core Date: Wed, 26 Jan 2011 11:51:58 -0000 X-URL: http://tools.ietf.org/core/ X-Trac-Ticket-URL: http://trac.tools.ietf.org/wg/core/trac/ticket/90 Message-ID: <057.117387d3771c28f6c41c6519ce0f719d@tools.ietf.org> X-Trac-Ticket-ID: 90 X-SA-Exim-Connect-IP: ::1 X-SA-Exim-Rcpt-To: zach@sensinode.com, core@ietf.org X-SA-Exim-Mail-From: trac@tools.ietf.org X-SA-Exim-Scanned: No (on zinfandel.tools.ietf.org); SAEximRunCond expanded to false Cc: core@ietf.org Subject: [core] link-format #90 (new): How web linking is used in CoRE X-BeenThere: core@ietf.org X-Mailman-Version: 2.1.9 List-Id: "Constrained RESTful Environments \(CoRE\) Working Group list" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 26 Jan 2011 11:48:59 -0000 #90: How web linking is used in CoRE Suggestion from Akbar: A general suggestion would be to clarify section 2 of this draft to better explain the principles of how Link Format is used in CORE. Zach: Right now this concentrates on explaining how we technically apply Web Linking in CoRE. But some more plain language explanation on how we use it would surely help. -- --------------------------------+------------------------------------------- Reporter: zach@… | Owner: zach@… Type: enhancement | Status: new Priority: trivial | Milestone: Component: link-format | Version: Severity: - | Keywords: --------------------------------+------------------------------------------- Ticket URL: core From zach@sensinode.com Wed Jan 26 03:54:55 2011 Return-Path: X-Original-To: core@core3.amsl.com Delivered-To: core@core3.amsl.com Received: from localhost (localhost [127.0.0.1]) by core3.amsl.com (Postfix) with ESMTP id 986D93A6987 for ; Wed, 26 Jan 2011 03:54:55 -0800 (PST) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -3.599 X-Spam-Level: X-Spam-Status: No, score=-3.599 tagged_above=-999 required=5 tests=[BAYES_00=-2.599, RCVD_IN_DNSWL_LOW=-1] Received: from mail.ietf.org ([64.170.98.32]) by localhost (core3.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id kO1erHg9u-BR for ; Wed, 26 Jan 2011 03:54:54 -0800 (PST) Received: from auth-smtp.nebula.fi (auth-smtp.nebula.fi [217.30.180.105]) by core3.amsl.com (Postfix) with ESMTP id 0D97E3A6832 for ; Wed, 26 Jan 2011 03:54:53 -0800 (PST) Received: from [213.145.205.239] ([213.145.205.239]) (authenticated bits=0) by auth-smtp.nebula.fi (8.13.4/8.13.4) with ESMTP id p0QBvouT030435 (version=TLSv1/SSLv3 cipher=AES128-SHA bits=128 verify=NO); Wed, 26 Jan 2011 13:57:50 +0200 Mime-Version: 1.0 (Apple Message framework v1082) Content-Type: multipart/signed; boundary=Apple-Mail-59--91707301; protocol="application/pkcs7-signature"; micalg=sha1 From: Zach Shelby In-Reply-To: Date: Wed, 26 Jan 2011 13:57:52 +0200 Message-Id: <629D8F15-84D5-4D3A-BDDA-D0F3AAB95C56@sensinode.com> References: <91473B88-3BDF-404D-947C-A717A3399243@cisco.com> To: "Dijk, Esko" X-Mailer: Apple Mail (2.1082) Cc: core WG Subject: Re: [core] WGLC for draft-ietf-core-link-format-02 X-BeenThere: core@ietf.org X-Mailman-Version: 2.1.9 Precedence: list List-Id: "Constrained RESTful Environments \(CoRE\) Working Group list" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 26 Jan 2011 11:54:55 -0000 --Apple-Mail-59--91707301 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset=us-ascii Esko, Thanks, you definitely found a bug. I will make a ticket to take care of = it. On Jan 25, 2011, at 12:18 PM, Dijk, Esko wrote: > Dear Cullen and Carsten, >=20 > I have read the draft and I noticed one potential issue, in the = descriptions of filtering. >=20 > Section 3.1 states: > "If the decoded query-pattern does not end with "*", a link value = matches the query only if the value of the attribute or URI-reference = denoted by the resource-param is bytewise identical to the = query-pattern". > In other words, a query without using "*" only finds values that equal = the query-pattern. This is correct. >=20 > Then the paragraph below this text states > "... An implementation supporting filtering MUST return only those = entries for which the value of the link attribute identified by the = resource-param contains the query-pattern as a substring." This sentence needs to be corrected to match the previous bytewise = matching. > In other words, a query will return entries based on substring = matching, so not necessarily bytewise identical. This seemingly = contradicts the previous text. Also this sentence probably should take = into account that querying can be done with/without wildcard "*" - the = two cases cause different matching behavior. Yes, I will do that. Zach >=20 > best regards, >=20 > Esko Dijk >=20 > Philips Corporate Technologies, Research > High Tech Campus 34, Eindhoven, The Netherlands > esko.dijk@philips.com >=20 >=20 > -----Original Message----- > From: core-bounces@ietf.org [mailto:core-bounces@ietf.org] On Behalf = Of Cullen Jennings > Sent: Wednesday 12 January 2011 16:42 > To: core WG > Subject: [core] WGLC for draft-ietf-core-link-format-02 >=20 >=20 > I would like to start the working group last call for = draft-ietf-core-link-format-02. Please review the draft and send = comments to list by the end of the day Jan 26. If you review the draft = and have no comments, send an email to the list or to the chairs so we = have an idea of how much review the draft received. >=20 > The draft is at = http://tools.ietf.org/html/draft-ietf-core-link-format-02 >=20 > Thank you, >=20 > Cullen & Carsten >=20 > _______________________________________________ > core mailing list > core@ietf.org > https://www.ietf.org/mailman/listinfo/core >=20 > The information contained in this message may be confidential and = legally protected under applicable law. The message is intended solely = for the addressee(s). If you are not the intended recipient, you are = hereby notified that any use, forwarding, dissemination, or reproduction = of this message is strictly prohibited and may be unlawful. If you are = not the intended recipient, please contact the sender by return e-mail = and destroy all copies of the original message. >=20 > _______________________________________________ > core mailing list > core@ietf.org > https://www.ietf.org/mailman/listinfo/core --=20 Zach Shelby, Chief Nerd, Sensinode Ltd. http://zachshelby.org - My blog "On the Internet of Things" http://6lowpan.net - My book "6LoWPAN: The Wireless Embedded Internet" Mobile: +358 40 7796297 --Apple-Mail-59--91707301 Content-Disposition: attachment; filename=smime.p7s Content-Type: application/pkcs7-signature; name=smime.p7s Content-Transfer-Encoding: base64 MIAGCSqGSIb3DQEHAqCAMIACAQExCzAJBgUrDgMCGgUAMIAGCSqGSIb3DQEHAQAAoIIKGzCCBMww ggQ1oAMCAQICEByunWua9OYvIoqj2nRhbB4wDQYJKoZIhvcNAQEFBQAwXzELMAkGA1UEBhMCVVMx FzAVBgNVBAoTDlZlcmlTaWduLCBJbmMuMTcwNQYDVQQLEy5DbGFzcyAxIFB1YmxpYyBQcmltYXJ5 IENlcnRpZmljYXRpb24gQXV0aG9yaXR5MB4XDTA1MTAyODAwMDAwMFoXDTE1MTAyNzIzNTk1OVow 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core@core3.amsl.com Received: from localhost (localhost [127.0.0.1]) by core3.amsl.com (Postfix) with ESMTP id AFA873A6987 for ; Wed, 26 Jan 2011 03:55:22 -0800 (PST) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -6.599 X-Spam-Level: X-Spam-Status: No, score=-6.599 tagged_above=-999 required=5 tests=[AWL=0.000, BAYES_00=-2.599, RCVD_IN_DNSWL_MED=-4] Received: from mail.ietf.org ([64.170.98.32]) by localhost (core3.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id QhNLqI4e9bvV for ; Wed, 26 Jan 2011 03:55:21 -0800 (PST) Received: from VA3EHSOBE006.bigfish.com (va3ehsobe006.messaging.microsoft.com [216.32.180.16]) by core3.amsl.com (Postfix) with ESMTP id A9E2F3A6832 for ; Wed, 26 Jan 2011 03:55:21 -0800 (PST) Received: from mail166-va3-R.bigfish.com (10.7.14.247) by VA3EHSOBE006.bigfish.com (10.7.40.26) with Microsoft SMTP Server id 14.1.225.8; Wed, 26 Jan 2011 11:58:21 +0000 Received: from mail166-va3 (localhost.localdomain [127.0.0.1]) by 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26 Jan 2011 12:58:06 +0100 Received: from NLCLUEXM03.connect1.local ([172.16.157.42]) by NLHILEXH03.connect1.local ([172.16.153.78]) with mapi; Wed, 26 Jan 2011 12:58:06 +0100 From: "Stok, Peter van der" To: core issue tracker , "zach@sensinode.com" Date: Wed, 26 Jan 2011 12:58:04 +0100 Thread-Topic: [core] link-format #89 (new): Use case examples Thread-Index: Acu9Tw8IFIuPV1evTKqvjvr8LaLHTgAAO3Jg Message-ID: References: <057.1feee7c1a2bc38c2d343f8147f109134@tools.ietf.org> In-Reply-To: <057.1feee7c1a2bc38c2d343f8147f109134@tools.ietf.org> Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: acceptlanguage: en-US Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 MIME-Version: 1.0 X-OriginatorOrg: philips.com Cc: "core@ietf.org" Subject: Re: [core] link-format #89 (new): Use case examples X-BeenThere: core@ietf.org X-Mailman-Version: 2.1.9 Precedence: list List-Id: "Constrained RESTful Environments \(CoRE\) Working Group list" 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trac@tools.ietf.org Wed Jan 26 03:57:17 2011 Return-Path: X-Original-To: core@core3.amsl.com Delivered-To: core@core3.amsl.com Received: from localhost (localhost [127.0.0.1]) by core3.amsl.com (Postfix) with ESMTP id 96C3D3A6987 for ; Wed, 26 Jan 2011 03:57:17 -0800 (PST) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -102.589 X-Spam-Level: X-Spam-Status: No, score=-102.589 tagged_above=-999 required=5 tests=[AWL=0.011, BAYES_00=-2.599, NO_RELAYS=-0.001, USER_IN_WHITELIST=-100] Received: from mail.ietf.org ([64.170.98.32]) by localhost (core3.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id EYSn8Ht3PB2t for ; Wed, 26 Jan 2011 03:57:16 -0800 (PST) Received: from zinfandel.tools.ietf.org (unknown [IPv6:2001:1890:1112:1::2a]) by core3.amsl.com (Postfix) with ESMTP id 8CC463A6832 for ; Wed, 26 Jan 2011 03:57:12 -0800 (PST) Received: from localhost ([::1] helo=zinfandel.tools.ietf.org) by zinfandel.tools.ietf.org with esmtp (Exim 4.72) (envelope-from ) id 1Pi42m-0007dA-Np; Wed, 26 Jan 2011 04:00:12 -0800 MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 8bit From: "core issue tracker" X-Trac-Version: 0.11.7 Precedence: bulk Auto-Submitted: auto-generated X-Mailer: Trac 0.11.7, by Edgewall Software To: zach@sensinode.com X-Trac-Project: core Date: Wed, 26 Jan 2011 12:00:12 -0000 X-URL: http://tools.ietf.org/core/ X-Trac-Ticket-URL: http://trac.tools.ietf.org/wg/core/trac/ticket/91 Message-ID: <057.9e28dd9b6c262494556416627f5d30d8@tools.ietf.org> X-Trac-Ticket-ID: 91 X-SA-Exim-Connect-IP: ::1 X-SA-Exim-Rcpt-To: zach@sensinode.com, core@ietf.org X-SA-Exim-Mail-From: trac@tools.ietf.org X-SA-Exim-Scanned: No (on zinfandel.tools.ietf.org); SAEximRunCond expanded to false Cc: core@ietf.org Subject: [core] link-format #91 (new): Substring vs. bytewise matching bug X-BeenThere: core@ietf.org X-Mailman-Version: 2.1.9 List-Id: "Constrained RESTful Environments \(CoRE\) Working Group list" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 26 Jan 2011 11:57:17 -0000 #91: Substring vs. bytewise matching bug A bug was found by Esko Dijk. Section 3.1 states the correct behaviour as: "If the decoded query-pattern does not end with "*", a link value matches the query only if the value of the attribute or URI-reference denoted by the resource-param is bytewise identical to the query-pattern". In other words, a query without using "*" only finds values that equal the query-pattern. Then the paragraph below this text contradicts this and should be fixed: "... An implementation supporting filtering MUST return only those entries for which the value of the link attribute identified by the resource-param contains the query-pattern as a substring." In other words, a query will return entries based on substring matching, so not necessarily bytewise identical. Also this sentence probably should take into account that querying can be done with/without wildcard "*" - the two cases cause different matching behavior. -- --------------------------------+------------------------------------------- Reporter: zach@… | Owner: zach@… Type: defect | Status: new Priority: major | Milestone: Component: link-format | Version: Severity: - | Keywords: --------------------------------+------------------------------------------- Ticket URL: core From trac@tools.ietf.org Wed Jan 26 04:11:41 2011 Return-Path: X-Original-To: core@core3.amsl.com Delivered-To: core@core3.amsl.com Received: from localhost (localhost [127.0.0.1]) by core3.amsl.com (Postfix) with ESMTP id 8443B3A69BA for ; Wed, 26 Jan 2011 04:11:41 -0800 (PST) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -102.289 X-Spam-Level: X-Spam-Status: No, score=-102.289 tagged_above=-999 required=5 tests=[AWL=-0.289, BAYES_00=-2.599, J_CHICKENPOX_44=0.6, NO_RELAYS=-0.001, USER_IN_WHITELIST=-100] Received: from mail.ietf.org ([64.170.98.32]) by localhost (core3.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id SvsMSC8R1i5q for ; Wed, 26 Jan 2011 04:11:40 -0800 (PST) Received: from zinfandel.tools.ietf.org (unknown [IPv6:2001:1890:1112:1::2a]) by core3.amsl.com (Postfix) with ESMTP id DD6B73A69B0 for ; Wed, 26 Jan 2011 04:11:40 -0800 (PST) Received: from localhost ([::1] helo=zinfandel.tools.ietf.org) by zinfandel.tools.ietf.org with esmtp (Exim 4.72) (envelope-from ) id 1Pi4Gn-0004eZ-1t; Wed, 26 Jan 2011 04:14:41 -0800 MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 8bit From: "core issue tracker" X-Trac-Version: 0.11.7 Precedence: bulk Auto-Submitted: auto-generated X-Mailer: Trac 0.11.7, by Edgewall Software To: zach@sensinode.com X-Trac-Project: core Date: Wed, 26 Jan 2011 12:14:40 -0000 X-URL: http://tools.ietf.org/core/ X-Trac-Ticket-URL: http://trac.tools.ietf.org/wg/core/trac/ticket/92 Message-ID: <057.d8dc4ffe60924591be90fbd5825a0813@tools.ietf.org> X-Trac-Ticket-ID: 92 X-SA-Exim-Connect-IP: ::1 X-SA-Exim-Rcpt-To: zach@sensinode.com, core@ietf.org X-SA-Exim-Mail-From: trac@tools.ietf.org X-SA-Exim-Scanned: No (on zinfandel.tools.ietf.org); SAEximRunCond expanded to false Cc: core@ietf.org Subject: [core] link-format #92 (new): Sentence on alternative formats X-BeenThere: core@ietf.org X-Mailman-Version: 2.1.9 List-Id: "Constrained RESTful Environments \(CoRE\) Working Group list" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 26 Jan 2011 12:11:41 -0000 #92: Sentence on alternative formats Salvatore noticed that the following statement is not clear: It is expected that resources discovered in the CoRE Link Format may also be made available in alternative formats on the greater Internet. Zach: RFC5988 defines the concept of Web Linking where links can be expressed in a semantically equal way in many different formats. The HTTP Link Header, CoRE Link Format, HTML element, and atom:feed link element [RFC4287] can all be used to represent these links. The purpose of that sentence is that we don't expect the whole Internet to understand the CoRE Link Format. I think a sentence should be added here to clarify that with a pointer to RFC5988, HTML and RFC4287. -- --------------------------------+------------------------------------------- Reporter: zach@… | Owner: zach@… Type: enhancement | Status: new Priority: trivial | Milestone: Component: link-format | Version: Severity: - | Keywords: --------------------------------+------------------------------------------- Ticket URL: core From trac@tools.ietf.org Wed Jan 26 04:12:53 2011 Return-Path: X-Original-To: core@core3.amsl.com Delivered-To: core@core3.amsl.com Received: from localhost (localhost [127.0.0.1]) by core3.amsl.com (Postfix) with ESMTP id 2ECF93A69BA for ; Wed, 26 Jan 2011 04:12:53 -0800 (PST) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -102.588 X-Spam-Level: X-Spam-Status: No, score=-102.588 tagged_above=-999 required=5 tests=[AWL=0.012, BAYES_00=-2.599, NO_RELAYS=-0.001, USER_IN_WHITELIST=-100] Received: from mail.ietf.org ([64.170.98.32]) by localhost (core3.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id c66eUbszESN3 for ; Wed, 26 Jan 2011 04:12:52 -0800 (PST) Received: from zinfandel.tools.ietf.org (unknown [IPv6:2001:1890:1112:1::2a]) by core3.amsl.com (Postfix) with ESMTP id 034BB3A69B0 for ; Wed, 26 Jan 2011 04:12:52 -0800 (PST) Received: from localhost ([::1] helo=zinfandel.tools.ietf.org) by zinfandel.tools.ietf.org with esmtp (Exim 4.72) (envelope-from ) id 1Pi4Hw-0006ZB-Kz; Wed, 26 Jan 2011 04:15:52 -0800 MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 8bit From: "core issue tracker" X-Trac-Version: 0.11.7 Precedence: bulk Auto-Submitted: auto-generated X-Mailer: Trac 0.11.7, by Edgewall Software To: zach@sensinode.com X-Trac-Project: core Date: Wed, 26 Jan 2011 12:15:52 -0000 X-URL: http://tools.ietf.org/core/ X-Trac-Ticket-URL: http://trac.tools.ietf.org/wg/core/trac/ticket/93 Message-ID: <057.05e6e1a8b1c1b48be0e39f2afbb17610@tools.ietf.org> X-Trac-Ticket-ID: 93 X-SA-Exim-Connect-IP: ::1 X-SA-Exim-Rcpt-To: zach@sensinode.com, core@ietf.org X-SA-Exim-Mail-From: trac@tools.ietf.org X-SA-Exim-Scanned: No (on zinfandel.tools.ietf.org); SAEximRunCond expanded to false Cc: core@ietf.org Subject: [core] link-format #93 (new): Bug in Section 2.2.4 X-BeenThere: core@ietf.org X-Mailman-Version: 2.1.9 List-Id: "Constrained RESTful Environments \(CoRE\) Working Group list" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 26 Jan 2011 12:12:53 -0000 #93: Bug in Section 2.2.4 The maximum size estimate attribute "sz" gives an indication of the maximum size of the link indicated by the target URI. s/link/resource -- --------------------------------+------------------------------------------- Reporter: zach@… | Owner: zach@… Type: defect | Status: new Priority: trivial | Milestone: Component: link-format | Version: Severity: - | Keywords: --------------------------------+------------------------------------------- Ticket URL: core From zach@sensinode.com Wed Jan 26 04:13:26 2011 Return-Path: X-Original-To: core@core3.amsl.com Delivered-To: core@core3.amsl.com Received: from localhost (localhost [127.0.0.1]) by core3.amsl.com (Postfix) with ESMTP id CC3273A69B0 for ; Wed, 26 Jan 2011 04:13:26 -0800 (PST) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -3.299 X-Spam-Level: X-Spam-Status: No, score=-3.299 tagged_above=-999 required=5 tests=[AWL=-0.300, BAYES_00=-2.599, J_CHICKENPOX_44=0.6, RCVD_IN_DNSWL_LOW=-1] Received: from mail.ietf.org ([64.170.98.32]) by localhost (core3.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id HR9GQohlzYst for ; Wed, 26 Jan 2011 04:13:25 -0800 (PST) Received: from auth-smtp.nebula.fi (auth-smtp.nebula.fi [217.30.180.105]) by core3.amsl.com (Postfix) with ESMTP id DC89C3A69BA for ; Wed, 26 Jan 2011 04:13:24 -0800 (PST) Received: from [213.145.205.239] ([213.145.205.239]) (authenticated bits=0) by auth-smtp.nebula.fi (8.13.4/8.13.4) with ESMTP id p0QCGKF2007020 (version=TLSv1/SSLv3 cipher=AES128-SHA bits=128 verify=NO); Wed, 26 Jan 2011 14:16:21 +0200 Mime-Version: 1.0 (Apple Message framework v1082) Content-Type: multipart/signed; boundary=Apple-Mail-60--90597029; protocol="application/pkcs7-signature"; micalg=sha1 From: Zach Shelby In-Reply-To: <4D4003BE.9070406@ericsson.com> Date: Wed, 26 Jan 2011 14:16:22 +0200 Message-Id: References: <91473B88-3BDF-404D-947C-A717A3399243@cisco.com> <4D4003BE.9070406@ericsson.com> To: Salvatore Loreto X-Mailer: Apple Mail (2.1082) Cc: core@ietf.org Subject: Re: [core] WGLC for draft-ietf-core-link-format-02 X-BeenThere: core@ietf.org X-Mailman-Version: 2.1.9 Precedence: list List-Id: "Constrained RESTful Environments \(CoRE\) Working Group list" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 26 Jan 2011 12:13:26 -0000 --Apple-Mail-60--90597029 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset=us-ascii Thanks for the comments Salvatore.=20 On Jan 26, 2011, at 1:21 PM, Salvatore Loreto wrote: > Hi there, >=20 > I have reviewed the draft; below few comments >=20 > Section 2 > -------- > as a general comment Section 2 should be expanded to explain better = how the link Format is used in CORE, > several points are vague and could lead to misinterpretations. Agreed, just created a ticket on that. =20 > the following statement is not clear: >=20 > It is expected that resources discovered in the > CoRE Link Format may also be made available in alternative formats = on > the greater Internet. >=20 > is there already some thought about those alternative formats? > or "alternative" only means that the format is aspect to follow the = Web Linking (as specified in RFC5988) > in the greater Internet? RFC5988 defines the concept of Web Linking where links can be expressed = in a semantically equal way in many different formats. The HTTP Link = Header, CoRE Link Format, HTML element, and atom:feed link = element [RFC4287] can all be used to represent these links. The purpose = of that sentence is that we don't expect the whole Internet to = understand the CoRE Link Format. I think a sentence should be added here = to clarify that with a pointer to RFC5988, HTML and RFC4287. Just = made a ticket. >=20 > Section 2.1 define the "hosts" relation time (why "hosts" and not = "host"?) which indicates that the resource > is hosted by the server from which the link document was request; The Context URI "hosts" the Target URI. That is the reason for that = form. Alternatively "hosted" could work (see Section 3 of RFC5988) -=20 Context URI has a {relation type} resource at Target URI. > I have some doubts about the context in the case of a multicast = request, section 2.1.1 states: >=20 > The context URI of a link (also called base URI in > [RFC3986]) conveyed in the CoRE Link Format is by default built from > the scheme and authority parts of the target URI. In the absence of > this information in the target URI, the context URI is built from = the > scheme and authority that was used for referencing the resource > returning the set of links, replacing the path with an empty path. > Thus by default links can be thought of as describing a target > resource hosted by the server. >=20 In CoAP there is no difference between how a unicast or multicast = Request URI is reconstructed. The scheme + authority are identical in = both cases. Does that need more explanation? >=20 > I don't think that the above applies in the case of a multicast = request, or at least it should be explained better > how it applies. >=20 > Section 2.1.1. Resource name 'n' attribute > ----------------------------------- > IMO "application-specific semantic name" is a bit vague and could lead = a some interoperability problem The CoRE Link Format is exactly that, a format. It doesn't claim any = interoperability between the naming schemes used in different = applications. Probably should add some text explaining that further = specification is needed to define your resource and interface = description names? >=20 > Section 2.2.4 > ----------- >=20 > The maximum size estimate attribute "sz" gives an indication of the > maximum size of the link indicated by the target URI. >=20 >=20 > s/link/resource Good catch, thanks. Zach >=20 > cheers > /Sal >=20 > --=20 > Salvatore Loreto > www.sloreto.com >=20 > _______________________________________________ > core mailing list > core@ietf.org > https://www.ietf.org/mailman/listinfo/core --=20 Zach Shelby, Chief Nerd, Sensinode Ltd. http://zachshelby.org - My blog "On the Internet of Things" http://6lowpan.net - My book "6LoWPAN: The Wireless Embedded Internet" Mobile: +358 40 7796297 --Apple-Mail-60--90597029 Content-Disposition: attachment; filename=smime.p7s Content-Type: application/pkcs7-signature; name=smime.p7s Content-Transfer-Encoding: base64 MIAGCSqGSIb3DQEHAqCAMIACAQExCzAJBgUrDgMCGgUAMIAGCSqGSIb3DQEHAQAAoIIKGzCCBMww ggQ1oAMCAQICEByunWua9OYvIoqj2nRhbB4wDQYJKoZIhvcNAQEFBQAwXzELMAkGA1UEBhMCVVMx FzAVBgNVBAoTDlZlcmlTaWduLCBJbmMuMTcwNQYDVQQLEy5DbGFzcyAxIFB1YmxpYyBQcmltYXJ5 IENlcnRpZmljYXRpb24gQXV0aG9yaXR5MB4XDTA1MTAyODAwMDAwMFoXDTE1MTAyNzIzNTk1OVow gd0xCzAJBgNVBAYTAlVTMRcwFQYDVQQKEw5WZXJpU2lnbiwgSW5jLjEfMB0GA1UECxMWVmVyaVNp 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core3.amsl.com (Postfix) with ESMTP id 390FE3A685D; Wed, 26 Jan 2011 04:30:47 -0800 (PST) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -3.312 X-Spam-Level: X-Spam-Status: No, score=-3.312 tagged_above=-999 required=5 tests=[AWL=0.287, BAYES_00=-2.599, RCVD_IN_DNSWL_LOW=-1] Received: from mail.ietf.org ([64.170.98.32]) by localhost (core3.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id ltjTr4H-EZUz; Wed, 26 Jan 2011 04:30:46 -0800 (PST) Received: from mailX02.eud.schneider-electric.com (mailx02.eud.schneider-electric.com [205.167.7.38]) by core3.amsl.com (Postfix) with ESMTP id 13A873A6836; Wed, 26 Jan 2011 04:30:45 -0800 (PST) Received: from ateui02.Schneider-Electric.com ([10.198.14.10]) by mailX02.eud.schneider-electric.com with ESMTP id 2011012613105373-19861 ; Wed, 26 Jan 2011 13:10:53 +0100 In-Reply-To: <5723A7F1-4BC4-4A1B-B420-A403BA7755AA@tzi.org> To: Carsten Bormann MIME-Version: 1.0 X-Mailer: Lotus Notes Release 6.5.6 March 06, 2007 From: matthieu.vial@fr.non.schneider-electric.com Message-ID: Date: Wed, 26 Jan 2011 13:33:36 +0100 X-MIMETrack: Serialize by Router on ATEUI02.Schneider-Electric.com/T/SVR/Schneider at 26/01/2011 13:33:43, Serialize complete at 26/01/2011 13:33:43, Itemize by SMTP Server on AXEU2OUT.schneider-electric.com/X/SVR/SEIxtra at 26/01/2011 13:10:53, Serialize by Router on AXEU2OUT.schneider-electric.com/X/SVR/SEIxtra at 26/01/2011 13:10:55, Serialize complete at 26/01/2011 13:10:55 Content-Type: text/plain; charset="US-ASCII" Cc: core-bounces@ietf.org, core WG Subject: Re: [core] WGLC for draft-ietf-core-link-format-02 X-BeenThere: core@ietf.org X-Mailman-Version: 2.1.9 Precedence: list List-Id: "Constrained RESTful Environments \(CoRE\) Working Group list" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 26 Jan 2011 12:30:47 -0000 Hi Carsten, >In short, supporting installation/commissioning is the most useful application I see for resource discovery. >There are also applications in diagnostics/debugging and other management activities. According to the draft /.well-known/core should only mention the important resources. I understand the term important resource as the entry point to a given service offered by the device instead of an exhaustive resource list. The service may then be made of subordinate resources that could be defined out-of-band in a specification (not very RESTful) or learned with links from the entry point. It is not clear to me if it is allowed to define such an entry point as a link-format resource. The sentence "Such a hierarchy MUST be under the /.well-known/core path." at the end of section 3 makes me think that this kind of entry point would have to be in the /.well-known/core path. But I think the link-format could be used out of the /.well-known/core path. For example to enumerate the current list of subordinates for a resource which is a collection. And IMHO /.well-known/core is not the rigth place to advertise resources with potentially short lifetimes. So what people think about the following example? Is it the right way to use link-format? REQ: GET /.well-known/core RES: 200 OK ;n="GPS position", ;n="Geofence list";ct=40, ;n="Pending alarms";ct=40;obs, REQ: GET /gps RES: 200 OK 45.185013,5.723476 REQ: GET /fnc RES: 200 OK ;ct=41, ;ct=41;sz=200, REQ: GET /alrm RES: 200 OK ;ct=41, ;ct=41, ;ct=41, REQ: GET /fnc/1 RES: 200 OK ... REQ: GET /alrm/1 RES: 200 OK ... Sorry for the late comment, Matthieu From cabo@tzi.org Wed Jan 26 04:48:58 2011 Return-Path: X-Original-To: core@core3.amsl.com Delivered-To: core@core3.amsl.com Received: from localhost (localhost [127.0.0.1]) by core3.amsl.com (Postfix) with ESMTP id E88843A69AB for ; Wed, 26 Jan 2011 04:48:58 -0800 (PST) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -106.499 X-Spam-Level: X-Spam-Status: No, score=-106.499 tagged_above=-999 required=5 tests=[AWL=-0.250, BAYES_00=-2.599, HELO_EQ_DE=0.35, RCVD_IN_DNSWL_MED=-4, USER_IN_WHITELIST=-100] Received: from mail.ietf.org ([64.170.98.32]) by localhost (core3.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id TrRrSUZBvPZj for ; Wed, 26 Jan 2011 04:48:58 -0800 (PST) Received: from informatik.uni-bremen.de (mailhost.informatik.uni-bremen.de [IPv6:2001:638:708:30c9::12]) by core3.amsl.com (Postfix) with ESMTP id A2B823A69B2 for ; Wed, 26 Jan 2011 04:48:57 -0800 (PST) X-Virus-Scanned: amavisd-new at informatik.uni-bremen.de Received: from smtp-fb3.informatik.uni-bremen.de (smtp-fb3.informatik.uni-bremen.de [134.102.224.120]) by informatik.uni-bremen.de (8.14.3/8.14.3) with ESMTP id p0QCpopC011312; Wed, 26 Jan 2011 13:51:50 +0100 (CET) Received: from [192.168.10.52] (christoph.dagstuhl.de [192.76.146.51]) (using TLSv1 with cipher AES128-SHA (128/128 bits)) (No client certificate requested) by smtp-fb3.informatik.uni-bremen.de (Postfix) with ESMTPSA id 5706DF85; Wed, 26 Jan 2011 13:51:50 +0100 (CET) Mime-Version: 1.0 (Apple Message framework v1082) Content-Type: text/plain; charset=us-ascii From: Carsten Bormann In-Reply-To: Date: Wed, 26 Jan 2011 13:52:23 +0100 Content-Transfer-Encoding: quoted-printable Message-Id: <27634664-2BB7-438A-8208-244E22CB8734@tzi.org> References: To: "Angelo P. Castellani" X-Mailer: Apple Mail (2.1082) Cc: Michele Zorzi , Nicola Bui , core Subject: Re: [core] Message ID & Token: high overhead? X-BeenThere: core@ietf.org X-Mailman-Version: 2.1.9 Precedence: list List-Id: "Constrained RESTful Environments \(CoRE\) Working Group list" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 26 Jan 2011 12:48:59 -0000 On Jan 26, 2011, at 12:48, Angelo P. Castellani wrote: > Message ID overhead is 2 bytes, and Token overhead ranges from 2 bytes > to 9 bytes. I'm in a Dagstuhl seminar right now, where we happened to talk about = "the fallacy of overhead" a couple of hours ago... But really, as I explained, as the token has a default value, the token = overhead is zero, unless and until you do really need it. Unfortunately, I don't have time to explain this in more detail right = now, maybe later in the call... Gruesse, Carsten From kerlyn2001@gmail.com Wed Jan 26 05:49:59 2011 Return-Path: X-Original-To: core@core3.amsl.com Delivered-To: core@core3.amsl.com Received: from localhost (localhost [127.0.0.1]) by core3.amsl.com (Postfix) with ESMTP id EF3293A69C4; Wed, 26 Jan 2011 05:49:58 -0800 (PST) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -2.949 X-Spam-Level: X-Spam-Status: No, score=-2.949 tagged_above=-999 required=5 tests=[AWL=0.649, BAYES_00=-2.599, HTML_MESSAGE=0.001, RCVD_IN_DNSWL_LOW=-1] Received: from mail.ietf.org ([64.170.98.32]) by localhost (core3.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id KzR8dSf1z4-j; Wed, 26 Jan 2011 05:49:57 -0800 (PST) Received: from mail-bw0-f44.google.com (mail-bw0-f44.google.com [209.85.214.44]) by core3.amsl.com (Postfix) with ESMTP id DD5AE3A69B8; Wed, 26 Jan 2011 05:49:56 -0800 (PST) Received: by bwz12 with SMTP id 12so1568331bwz.31 for ; Wed, 26 Jan 2011 05:52:56 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma; h=domainkey-signature:mime-version:in-reply-to:references:date :message-id:subject:from:to:cc:content-type; bh=aOtChPd4RBmH7TO4i0T4B2FQgpJwsmLKy4MFeSpV3Rw=; b=sJJXmbu2KLc9uPCCox7I9z9FuLUG55+MfLFvxKgMgyBEjsUPmoyZtpo2pzvv2Ibblv Xd667yQXrv90j4V+e0K2Ck3iNzVRjvXtg10Xy7rOmm8KLZcfWTO+AK8n16zhs4f0qwch Mz+xuzDaDuG8F/2L1uD3U86TwAoiQeFDOgi4Q= DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=mime-version:in-reply-to:references:date:message-id:subject:from:to :cc:content-type; b=S/80/HL/JOuqc01+25X4E8fy/d/TMlEm2JYuJ7JkwJdpw+e35rk6S3tf7Z9hUKcB++ JCdPGbtxgjhZGVjnobcRfi7oUhKC4gYSU7lmZsg5EAk5LNKt6itpfjT5/+brbYyPoTDN hapazzKTo+hvRTSW12XJm2CGBWdPT8RCRtCaE= MIME-Version: 1.0 Received: by 10.204.33.74 with SMTP id g10mr382675bkd.131.1296049976638; Wed, 26 Jan 2011 05:52:56 -0800 (PST) Received: by 10.204.52.208 with HTTP; Wed, 26 Jan 2011 05:52:56 -0800 (PST) In-Reply-To: References: <5723A7F1-4BC4-4A1B-B420-A403BA7755AA@tzi.org> Date: Wed, 26 Jan 2011 08:52:56 -0500 Message-ID: From: Kerry Lynn To: matthieu.vial@fr.non.schneider-electric.com Content-Type: multipart/alternative; boundary=00032555f70677fe81049ac026f6 Cc: core WG , core-bounces@ietf.org Subject: Re: [core] WGLC for draft-ietf-core-link-format-02 X-BeenThere: core@ietf.org X-Mailman-Version: 2.1.9 Precedence: list List-Id: "Constrained RESTful Environments \(CoRE\) Working Group list" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 26 Jan 2011 13:49:59 -0000 --00032555f70677fe81049ac026f6 Content-Type: text/plain; charset=ISO-8859-1 I agree that there should be something of a "split" between relatively coarse-grained discovery (a.k.a. "service discovery") which is done at link-local or site-local scope, and fine-grained data ("resource discovery") which is learned by querying the device in question. Perhaps the former is exposed via multicast and the latter only via unicast. This might mitigate amplification attack concerns. At the same time, I expect that even the former might have some practical scaling limit when the size of the network reaches thousands of points. Therefore, I think one very practical application of link format is to support the automatic population of scalable discovery databases (e.g. DNS-SD) during commissioning. It seemed like the original draft-ietf-core-coap-00 described a scheme that would satisfy the discovery requirement from the charter: A definition of how to use CoAP to advertise about or query for a Device's description. This description may include the device name and a list of its Resources, each with a URL, an interface description URI (pointing e.g. to a Web Application Description Language (WADL) document) and an optional name or identifier. The name taxonomy used for this description will be consistent with other IETF work, e.g. draft-cheshire-dnsext-dns-sd. [charter] In particular, a DNS-SD name includes three basic concepts: ... I would like to understand how target attributes can be mapped to these fields. I was under the impression that the -00 text would be tweaked and restored at some point? If not, how will we address the intent of the last sentence in the above requirement? Also sorry for the late comment, -K- On Wed, Jan 26, 2011 at 7:33 AM, < matthieu.vial@fr.non.schneider-electric.com> wrote: > Hi Carsten, > > >In short, supporting installation/commissioning is the most useful > application I see for resource discovery. > >There are also applications in diagnostics/debugging and other management > activities. > > According to the draft /.well-known/core should only mention the important > resources. I understand the term important resource as the entry point to > a given service offered by the device instead of an exhaustive resource > list. The service may then be made of subordinate resources that could be > defined out-of-band in a specification (not very RESTful) or learned with > links from the entry point. It is not clear to me if it is allowed to > define such an entry point as a link-format resource. The sentence "Such a > hierarchy MUST be under the /.well-known/core path." at the end of section > 3 makes me think that this kind of entry point would have to be in the > /.well-known/core path. > > But I think the link-format could be used out of the /.well-known/core > path. For example to enumerate the current list of subordinates for a > resource which is a collection. And IMHO /.well-known/core is not the > rigth place to advertise resources with potentially short lifetimes. So > what people think about the following example? Is it the right way to use > link-format? > > REQ: GET /.well-known/core > RES: 200 OK > ;n="GPS position", > ;n="Geofence list";ct=40, > ;n="Pending alarms";ct=40;obs, > > REQ: GET /gps > RES: 200 OK > 45.185013,5.723476 > > REQ: GET /fnc > RES: 200 OK > ;ct=41, > ;ct=41;sz=200, > > REQ: GET /alrm > RES: 200 OK > ;ct=41, > ;ct=41, > ;ct=41, > > REQ: GET /fnc/1 > RES: 200 OK > > ... > > > REQ: GET /alrm/1 > RES: 200 OK > > ... > > > Sorry for the late comment, > Matthieu > _______________________________________________ > core mailing list > core@ietf.org > https://www.ietf.org/mailman/listinfo/core > --00032555f70677fe81049ac026f6 Content-Type: text/html; charset=ISO-8859-1 Content-Transfer-Encoding: quoted-printable I agree that there should be something of a "split" between relat= ively
coarse-grained discovery (a.k.a. "service discovery") wh= ich is done
at link-local or site-local scope, and fine-grained data (&q= uot;resource
discovery") which is learned by querying the device in question.
Pe= rhaps the former is exposed via multicast and the latter only
via unicas= t.=A0 This might mitigate amplification attack concerns.

At the same= time, I expect that even the former might have some
practical scaling limit when the size of the network reaches thousands
o= f points.=A0 Therefore, I think one very practical application of link
f= ormat is to support the automatic population of scalable discovery
datab= ases (e.g. DNS-SD) during commissioning.

It seemed like the original draft-ietf-core-coap-00 described a
sche= me that would satisfy the discovery requirement from the
charter:
A definition of how to use CoAP to advertise about or query
for a Devi= ce's description. This description may include the
device name and a list of its Resources, each with a URL, an
interface d= escription URI (pointing e.g. to a Web Application
Description Language = (WADL) document) and an optional name or
identifier. The name taxonomy = used for this description will
be consistent with other IETF work, e.g.
draft-cheshire-dnsext-dns-sd. [= charter]
In particular, a DNS-SD name includes three basic concept= s:
<instanceName>.<serviceType>.<location>.=A0 I would= like to
understand how target attributes can be mapped to these fields.
I was un= der the impression that the -00 text would be tweaked
and restored at so= me point?=A0 If not, how will we address the
intent of the last sentence= in the above requirement?

Also sorry for the late comment, -K-


On Wed, Jan 26, 2011 at 7:33 AM, <matthieu.vial@fr.non.schnei= der-electric.com> wrote:
Hi Carsten,

>In short, supporting installation/commissioning is the most useful
application I see for resource discovery.
>There are also applications in diagnostics/debugging and other manageme= nt
activities.

According to the draft /.well-known/core should only mention the impo= rtant
resources. I understand the term important resource as the entry point to a given service offered by the device instead of an exhaustive resource
list. The service may then be made of subordinate resources that could be defined out-of-band in a specification (not very RESTful) or learned with links from the entry point. It is not clear to me if it is allowed to
define such an entry point as a link-format resource. The sentence "Su= ch a
hierarchy MUST be under the /.well-known/core path." at the end of sec= tion
3 makes me think that this kind of entry point would have to be in the
/.well-known/core path.

But I think the link-format could be used out of the /.well-known/core
path. For example to enumerate the current list of subordinates for a
resource which is a collection. And IMHO /.well-known/core is not the
rigth place to advertise resources with potentially short lifetimes. So
what people think about the following example? Is it the right way to use link-format?

REQ: GET /.well-known/core
RES: 200 OK
</gps>;n=3D"GPS position",
</fnc>;n=3D"Geofence list";ct=3D40,
</alrm>;n=3D"Pending alarms";ct=3D40;obs,

REQ: GET /gps
RES: 200 OK
45.185013,5.723476

REQ: GET /fnc
RES: 200 OK
</fnc/1>;ct=3D41,
</fnc/2>;ct=3D41;sz=3D200,

REQ: GET /alrm
RES: 200 OK
</alrm/1>;ct=3D41,
</alrm/2>;ct=3D41,
</alrm/3>;ct=3D41,

REQ: GET /fnc/1
RES: 200 OK
<fence>
...
</fence>

REQ: GET /alrm/1
RES: 200 OK
<alarm>
...
</alarm>

Sorry for the late comment,
Matthieu
_________________________________________= ______
core mailing list
core@ietf.org
ht= tps://www.ietf.org/mailman/listinfo/core

--00032555f70677fe81049ac026f6-- From angelo.castellani@gmail.com Wed Jan 26 05:55:06 2011 Return-Path: X-Original-To: core@core3.amsl.com Delivered-To: core@core3.amsl.com Received: from localhost (localhost [127.0.0.1]) by core3.amsl.com (Postfix) with ESMTP id 5616B3A69BA for ; Wed, 26 Jan 2011 05:55:06 -0800 (PST) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -2.636 X-Spam-Level: X-Spam-Status: No, score=-2.636 tagged_above=-999 required=5 tests=[AWL=0.341, BAYES_00=-2.599, FM_FORGED_GMAIL=0.622, RCVD_IN_DNSWL_LOW=-1] Received: from mail.ietf.org ([64.170.98.32]) by localhost (core3.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id OeCjBzhZ2UFk for ; Wed, 26 Jan 2011 05:55:05 -0800 (PST) Received: from mail-qy0-f179.google.com (mail-qy0-f179.google.com [209.85.216.179]) by core3.amsl.com (Postfix) with ESMTP id 6B9863A69BB for ; Wed, 26 Jan 2011 05:55:05 -0800 (PST) Received: by qyj19 with SMTP id 19so1004101qyj.10 for ; Wed, 26 Jan 2011 05:58:05 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma; h=domainkey-signature:mime-version:sender:in-reply-to:references:from :date:x-google-sender-auth:message-id:subject:to:cc:content-type; bh=Esaz8U562QAbgAZmO+SQYOpPwIPmTHfknDDUQsbZsz8=; b=uOHwNZn68i0RpRxlDM8EP2gNr4f3FFwIwul/TWnK5h2/Bom09ia2pqzEKpA1UsAtVS 6TmYjL1w88UlWeHcfaKaVq2OgSvkAMWIPbFWcGQE+5Wo6IidunVkDwWnt2d7JAvpQ6Ui 4YSs8woai5Tw94y02k2IGw13fuvl3ba0Eux/U= DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=mime-version:sender:in-reply-to:references:from:date :x-google-sender-auth:message-id:subject:to:cc:content-type; b=b5RHp8ymMQx0jGWnCDQUf26Gbmm57A9P5wMYipiIkMu63BWJFXOySqq/QYNG2IPWWy Udtp/RqJBpk4xVeHk4BD+eH+7KJdA+QSl4bJTdVgsdvuU9+aYZgg7q4wjGlAILC8haSY t8FI6bEwiFHDor/p+2cO1OpJOL3FlnAEwJM94= Received: by 10.229.91.2 with SMTP id k2mr397042qcm.260.1296050285659; Wed, 26 Jan 2011 05:58:05 -0800 (PST) MIME-Version: 1.0 Sender: angelo.castellani@gmail.com Received: by 10.229.218.69 with HTTP; Wed, 26 Jan 2011 05:57:45 -0800 (PST) In-Reply-To: <27634664-2BB7-438A-8208-244E22CB8734@tzi.org> References: <27634664-2BB7-438A-8208-244E22CB8734@tzi.org> From: "Angelo P. Castellani" Date: Wed, 26 Jan 2011 14:57:45 +0100 X-Google-Sender-Auth: BRx2w9TJIf4RnBU7Zx-T9__yGTc Message-ID: To: Carsten Bormann Content-Type: text/plain; charset=ISO-8859-1 Cc: Michele Zorzi , Nicola Bui , core Subject: Re: [core] Message ID & Token: high overhead? X-BeenThere: core@ietf.org X-Mailman-Version: 2.1.9 Precedence: list List-Id: "Constrained RESTful Environments \(CoRE\) Working Group list" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 26 Jan 2011 13:55:06 -0000 Carsten thanks again for the feedback. > But really, as I explained, as the token has a default value, the token overhead is zero, unless and until you do really need it. As far as I can understand from the current CoAP-04 specification, Token has a great importance in the request/response matching process. See especially Section 5.3, and other text about it in Sections 2.2 and 5.2; moreover it is present in a lot of examples (every?). For convenience of who has less time to read the email, my previous message can synthetized as follows: Conclusions: - for REQ/RES matching purposes can be investigated the use of "Message ID" field *only* - the fact that Token is used also in other documents can suggests a deeper investigation of that methods too 2 useful considerations: - duplicate message detection function can be operated using UDP checksum field - REQ/RES matching can be done using "Message ID" paired with the source IP address and source UDP port of the datagram However please look at the whole previous message if you have doubts about this. Best, Angelo From cabo@tzi.org Wed Jan 26 06:04:24 2011 Return-Path: X-Original-To: core@core3.amsl.com Delivered-To: core@core3.amsl.com Received: from localhost (localhost [127.0.0.1]) by core3.amsl.com (Postfix) with ESMTP id 3D6083A69C9 for ; Wed, 26 Jan 2011 06:04:24 -0800 (PST) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -105.199 X-Spam-Level: X-Spam-Status: No, score=-105.199 tagged_above=-999 required=5 tests=[AWL=-1.450, BAYES_00=-2.599, HELO_EQ_DE=0.35, RAZOR2_CF_RANGE_51_100=0.5, RAZOR2_CF_RANGE_E4_51_100=1.5, RAZOR2_CHECK=0.5, RCVD_IN_DNSWL_MED=-4, USER_IN_WHITELIST=-100] Received: from mail.ietf.org ([64.170.98.32]) by localhost (core3.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id ZpE7xpR+G9l4 for ; Wed, 26 Jan 2011 06:04:22 -0800 (PST) Received: from informatik.uni-bremen.de (mailhost.informatik.uni-bremen.de [IPv6:2001:638:708:30c9::12]) by core3.amsl.com (Postfix) with ESMTP id 9CD993A686C for ; Wed, 26 Jan 2011 06:04:17 -0800 (PST) X-Virus-Scanned: amavisd-new at informatik.uni-bremen.de Received: from smtp-fb3.informatik.uni-bremen.de (smtp-fb3.informatik.uni-bremen.de [134.102.224.120]) by informatik.uni-bremen.de (8.14.3/8.14.3) with ESMTP id p0QE7Bb0012096 for ; Wed, 26 Jan 2011 15:07:11 +0100 (CET) Received: from [192.168.10.52] (christoph.dagstuhl.de [192.76.146.51]) (using TLSv1 with cipher AES128-SHA (128/128 bits)) (No client certificate requested) by smtp-fb3.informatik.uni-bremen.de (Postfix) with ESMTPSA id 9EFCC43; Wed, 26 Jan 2011 15:07:10 +0100 (CET) Mime-Version: 1.0 (Apple Message framework v1082) Content-Type: multipart/mixed; boundary=Apple-Mail-33--83915315 From: Carsten Bormann In-Reply-To: <2C8F5968-9EB5-495D-A296-AB96B0E8E5A8@tzi.org> Date: Wed, 26 Jan 2011 15:07:44 +0100 Message-Id: <23CB5E7A-3785-4E3C-AE68-914189E9C8AC@tzi.org> References: <7925360F-9E9E-41F8-8053-9AF6F244C7A9@tzi.org> <2C8F5968-9EB5-495D-A296-AB96B0E8E5A8@tzi.org> To: Constrained RESTful Environments WG X-Mailer: Apple Mail (2.1082) Subject: Re: [core] CoRE WG webex call on Jan 26, 1500 UTC X-BeenThere: core@ietf.org X-Mailman-Version: 2.1.9 Precedence: list List-Id: "Constrained RESTful Environments \(CoRE\) Working Group list" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 26 Jan 2011 14:04:24 -0000 --Apple-Mail-33--83915315 Content-Transfer-Encoding: 7bit Content-Type: text/plain; charset=us-ascii On Jan 24, 2011, at 13:56, Carsten Bormann wrote: > This is a reminder that our next WG webex call is this Wednesday, Jan 26. > As we decided to stick with a constant 1500 UTC time, > the time for the call is: > > 0700 PST = 1000 EST = 1500 UTC = 1600 CET = > 1700 EET = 2300 China = 2400 Japan/Korea ... about 50 minutes from now. And attached is a very first version of the slides. > Do we have any other contributions we should discuss on Wednesday? I can still take in more slides, please send them to me now. Gruesse, Carsten --Apple-Mail-33--83915315 Content-Disposition: inline; filename=IETF79-core-interim-v2.pdf Content-Type: application/pdf; x-unix-mode=0644; name="IETF79-core-interim-v2.pdf" Content-Transfer-Encoding: base64 JVBERi0xLjMKJcTl8uXrp/Og0MTGCjQgMCBvYmoKPDwgL0xlbmd0aCA1IDAgUiAvRmlsdGVyIC9G bGF0ZURlY29kZSA+PgpzdHJlYW0KeAGtVt9P20AMfs9f4cdEGte7yyVNEUKICiah7YE1Eg9jD6xr WVF/jDYMbX/9nPPZOfoDgTSBhMnZPvvz9zl5hGt4BI0/fauhcBrWE7iBJfSGGwPjDRjYjLfPp6BV CbPWx5KPAZPs9fOh/mSG9xj/75EBZ9vf8QLOazBVeFpBX1mwJqkX0Ls0SqN/PYWvkP7M4EgrA2nT /GLzuNcr2Z6zsWLjOcMabZLe8QOJE0Mt+WzCRpPBN6iv4KL2sEi51pWQl0mo14V6HTinBtrmBZg+ +KJtVPSYs67WvhhI5Z6zLMHqIJ0t8UbfmByx72zxASxn0GyYzN8JKRqEyFGbCpGJXfiEUksWhGtv d0WVQ65xGkk7jag7hY2V1FjOjbU31w+EEFEnx9iWPNbE5LEJkqfllfYE8nyJCEBcI0BduBL/mlJV A1fgvZjQI+qUTpgGQ9804rai0aG14UcNA3c3C2iLD2Lr0f6RJYgMBsEXjroYsVVPn9hENpHbhaT4 zUnxFlO1ObCEkG3B+cW7kargAOQH2relVlVeDZBPQQXYvqjg5iMXdpsiuXyNLbeoIK7iNovvbEeU lziE0jqwVZV08vbSPTwhjEL/fRo11g3wUJNOi6hCGRAJFmEi/aGBABL4681xXGDECboxqAydtdYW 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ZjQ2YjJmNz4gXSA+PgpzdGFydHhyZWYKMTY2NjM0CiUlRU9GCg== --Apple-Mail-33--83915315 Content-Transfer-Encoding: 7bit Content-Type: text/plain; charset=us-ascii --Apple-Mail-33--83915315-- From cabo@tzi.org Wed Jan 26 06:10:01 2011 Return-Path: X-Original-To: core@core3.amsl.com Delivered-To: core@core3.amsl.com Received: from localhost (localhost [127.0.0.1]) by core3.amsl.com (Postfix) with ESMTP id D4BC43A69C9 for ; Wed, 26 Jan 2011 06:10:00 -0800 (PST) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -106.207 X-Spam-Level: X-Spam-Status: No, score=-106.207 tagged_above=-999 required=5 tests=[AWL=0.042, BAYES_00=-2.599, HELO_EQ_DE=0.35, RCVD_IN_DNSWL_MED=-4, USER_IN_WHITELIST=-100] Received: from mail.ietf.org ([64.170.98.32]) by localhost (core3.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id Au13+FvkbW94 for ; Wed, 26 Jan 2011 06:09:59 -0800 (PST) Received: from informatik.uni-bremen.de (mailhost.informatik.uni-bremen.de [IPv6:2001:638:708:30c9::12]) by core3.amsl.com (Postfix) with ESMTP id 2CA923A69C7 for ; Wed, 26 Jan 2011 06:09:58 -0800 (PST) X-Virus-Scanned: amavisd-new at informatik.uni-bremen.de Received: from smtp-fb3.informatik.uni-bremen.de (smtp-fb3.informatik.uni-bremen.de [134.102.224.120]) by informatik.uni-bremen.de (8.14.3/8.14.3) with ESMTP id p0QECqXB014657; Wed, 26 Jan 2011 15:12:52 +0100 (CET) Received: from [192.168.10.52] (christoph.dagstuhl.de [192.76.146.51]) (using TLSv1 with cipher AES128-SHA (128/128 bits)) (No client certificate requested) by smtp-fb3.informatik.uni-bremen.de (Postfix) with ESMTPSA id 2AC6B4F; Wed, 26 Jan 2011 15:12:52 +0100 (CET) Mime-Version: 1.0 (Apple Message framework v1082) Content-Type: text/plain; charset=us-ascii From: Carsten Bormann In-Reply-To: Date: Wed, 26 Jan 2011 15:13:25 +0100 Content-Transfer-Encoding: quoted-printable Message-Id: <7E731678-F1C8-416D-BB9E-07387BECBBEE@tzi.org> References: To: "Angelo P. Castellani" X-Mailer: Apple Mail (2.1082) Cc: Michele Zorzi , Nicola Bui , core Subject: Re: [core] Message ID & Token: high overhead? X-BeenThere: core@ietf.org X-Mailman-Version: 2.1.9 Precedence: list List-Id: "Constrained RESTful Environments \(CoRE\) Working Group list" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 26 Jan 2011 14:10:01 -0000 On Jan 26, 2011, at 12:48, Angelo P. Castellani wrote: > However in my opinion duplicate message detection can be realized > using a cross-layer optimization, by exploiting the checksum field of > UDP (a similar cross-layer optimization has been used to drop the need > for Content-Length). Implementations on larger hosts typically don't have access to the = checksum and would have to recompute them. Also, I don't know how to avoid collisions here. I don't think saving the two bytes of message ID is worth any additional = complexity. (The IP address and port usually are available, even though it is not = always easy to get at both sides. =20 See CoAP-04 security considerations, last para of 10.3.3.) Gruesse, Carsten From tianlinyi@huawei.com Wed Jan 26 06:17:05 2011 Return-Path: X-Original-To: core@core3.amsl.com Delivered-To: core@core3.amsl.com Received: from localhost (localhost [127.0.0.1]) by core3.amsl.com (Postfix) with ESMTP id 1D94E3A69C8 for ; Wed, 26 Jan 2011 06:17:05 -0800 (PST) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -1.706 X-Spam-Level: X-Spam-Status: No, score=-1.706 tagged_above=-999 required=5 tests=[BAYES_00=-2.599, CN_BODY_35=0.339, FH_RELAY_NODNS=1.451, HELO_MISMATCH_COM=0.553, MIME_CHARSET_FARAWAY=2.45, RCVD_IN_DNSWL_MED=-4, RDNS_NONE=0.1] Received: from mail.ietf.org ([64.170.98.32]) by localhost (core3.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id I++9uzXs294z for ; Wed, 26 Jan 2011 06:17:04 -0800 (PST) Received: from szxga04-in.huawei.com (unknown [119.145.14.67]) by core3.amsl.com (Postfix) with ESMTP id EBBD33A69C5 for ; Wed, 26 Jan 2011 06:17:03 -0800 (PST) Received: from huawei.com (szxga04-in [172.24.2.12]) by szxga04-in.huawei.com (iPlanet Messaging Server 5.2 HotFix 2.14 (built Aug 8 2006)) with ESMTP id <0LFM00IQBVSVFZ@szxga04-in.huawei.com> for core@ietf.org; Wed, 26 Jan 2011 22:19:44 +0800 (CST) Received: from huawei.com ([172.24.2.119]) by szxga04-in.huawei.com (iPlanet Messaging Server 5.2 HotFix 2.14 (built Aug 8 2006)) with ESMTP id <0LFM00HABVSVNF@szxga04-in.huawei.com> for core@ietf.org; Wed, 26 Jan 2011 22:19:43 +0800 (CST) Received: from [172.24.1.6] (Forwarded-For: [119.123.97.110]) by szxmc04-in.huawei.com (mshttpd); Wed, 26 Jan 2011 22:19:43 +0800 Date: Wed, 26 Jan 2011 22:19:43 +0800 From: tianlinyi 00175029 In-reply-to: <23CB5E7A-3785-4E3C-AE68-914189E9C8AC@tzi.org> To: Carsten Bormann Message-id: MIME-version: 1.0 X-Mailer: iPlanet Messenger Express 5.2 HotFix 2.14 (built Aug 8 2006) Content-type: multipart/mixed; boundary="Boundary_(ID_AqmH+wlKGlMmVlragNmsQg)" Content-language: zh-CN X-Accept-Language: zh-CN Priority: normal References: <7925360F-9E9E-41F8-8053-9AF6F244C7A9@tzi.org> <2C8F5968-9EB5-495D-A296-AB96B0E8E5A8@tzi.org> <23CB5E7A-3785-4E3C-AE68-914189E9C8AC@tzi.org> Cc: Constrained RESTful Environments WG Subject: Re: [core] CoRE WG webex call on Jan 26, 1500 UTC X-BeenThere: core@ietf.org X-Mailman-Version: 2.1.9 Precedence: list List-Id: "Constrained RESTful Environments \(CoRE\) Working Group list" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 26 Jan 2011 14:17:05 -0000 This is a multi-part message in MIME format. --Boundary_(ID_AqmH+wlKGlMmVlragNmsQg) Content-type: text/plain; charset=gb2312 Content-transfer-encoding: quoted-printable Content-disposition: inline Hi=2C Carsten Is it possible for you to start the meeting 5-10 minutes earlier=3F I nee= d to tesk whehter my microphone works=3A) The official meeting is still o= n 15=3A00 UTC=2E Just do me a favor=3A) Thank you in advance! Cheers=2C Linyi *************************************************************************= ***************** This email and its attachments contain confidential information from HUA= WEI=2C which is intended only for the person or entity whose address is l= isted above=2E Any use of the information contained here in any way (incl= uding=2C but not limited to=2C total or partial disclosure=2C reproductio= n=2C or dissemination) by persons other than the intended recipient(s) is= prohibited=2E If you receive this email in error=2C please notify the se= nder by phone or email immediately and delete it! ************************************************************************= ***************** ----- =D4=AD=D3=CA=BC=FE ----- =B7=A2=BC=FE=C8=CB=3A Carsten Bormann =3Ccabo=40tzi=2Eorg=3E =C8=D5=C6=DA=3A =D0=C7=C6=DA=C8=FD=2C =D2=BB=D4=C2 26=C8=D5=2C 2011 =CF=C2= =CE=E710=3A09 =D6=F7=CC=E2=3A Re=3A =5Bcore=5D CoRE WG webex call on Jan 26=2C 1500 UTC= =CA=D5=BC=FE=C8=CB=3A Constrained RESTful Environments WG =3Ccore=40ietf=2E= org=3E =3E On Jan 24=2C 2011=2C at 13=3A56=2C Carsten Bormann wrote=3A =3E = =3E =3E This is a reminder that our next WG webex call is this = =3E Wednesday=2C Jan 26=2E =3E =3E As we decided to stick with a constant 1500 UTC time=2C =3E =3E the time for the call is=3A =3E =3E = =3E =3E 0700 PST =3D 1000 EST =3D 1500 UTC =3D 1600 CET =3D = =3E =3E 1700 EET =3D 2300 China =3D 2400 Japan/Korea =3E = =3E =2E=2E=2E about 50 minutes from now=2E =3E = =3E And attached is a very first version of the slides=2E =3E = =3E =3E Do we have any other contributions we should discuss on Wednesday= =3F =3E = =3E I can still take in more slides=2C please send them to me now=2E =3E = =3E Gruesse=2C Carsten =3E = =3E --Boundary_(ID_AqmH+wlKGlMmVlragNmsQg) Content-type: text/x-vcard; name=t00175029.vcf; charset=gb2312 Content-transfer-encoding: 7BIT Content-disposition: attachment; filename=t00175029.vcf Content-description: Card for tianlinyi 00175029 begin:vcard n:34932;tianlinyi fn:tianlinyi 34932 version:2.1 email;internet:tianlinyi@huawei.com end:vcard --Boundary_(ID_AqmH+wlKGlMmVlragNmsQg)-- From L.Wood@surrey.ac.uk Wed Jan 26 06:29:15 2011 Return-Path: X-Original-To: core@core3.amsl.com Delivered-To: core@core3.amsl.com Received: from localhost (localhost [127.0.0.1]) by core3.amsl.com (Postfix) with ESMTP id 7F98C3A69D4 for ; Wed, 26 Jan 2011 06:29:15 -0800 (PST) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -6.133 X-Spam-Level: X-Spam-Status: No, score=-6.133 tagged_above=-999 required=5 tests=[AWL=0.466, BAYES_00=-2.599, RCVD_IN_DNSWL_MED=-4] Received: from mail.ietf.org ([64.170.98.32]) by localhost (core3.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id 8Cha-o6Luuhk for ; Wed, 26 Jan 2011 06:29:14 -0800 (PST) Received: from mail78.messagelabs.com (mail78.messagelabs.com [195.245.230.131]) by core3.amsl.com (Postfix) with ESMTP id 520C23A69D3 for ; Wed, 26 Jan 2011 06:29:14 -0800 (PST) X-VirusChecked: Checked X-Env-Sender: L.Wood@surrey.ac.uk X-Msg-Ref: server-8.tower-78.messagelabs.com!1296052333!54726463!1 X-StarScan-Version: 6.2.9; banners=-,-,- X-Originating-IP: [131.227.200.35] Received: (qmail 29545 invoked from network); 26 Jan 2011 14:32:14 -0000 Received: from unknown (HELO EXHT021P.surrey.ac.uk) (131.227.200.35) by server-8.tower-78.messagelabs.com with AES128-SHA encrypted SMTP; 26 Jan 2011 14:32:14 -0000 Received: from EXMB01CMS.surrey.ac.uk ([169.254.1.223]) by EXHT021P.surrey.ac.uk ([131.227.200.35]) with mapi; Wed, 26 Jan 2011 14:32:13 +0000 From: To: , Date: Wed, 26 Jan 2011 14:32:15 +0000 Thread-Topic: [core] Message ID & Token: high overhead? Thread-Index: Acu9Yyb8OTznaAWcTuKrK5Xm9QCLigAAnmKQ Message-ID: References: <7E731678-F1C8-416D-BB9E-07387BECBBEE@tzi.org> In-Reply-To: <7E731678-F1C8-416D-BB9E-07387BECBBEE@tzi.org> Accept-Language: en-US, en-GB Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: acceptlanguage: en-US, en-GB Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 Cc: zorzi@ing.unife.it, buincl@unife.it, core@ietf.org Subject: Re: [core] Message ID & Token: high overhead? X-BeenThere: core@ietf.org X-Mailman-Version: 2.1.9 Precedence: list List-Id: "Constrained RESTful Environments \(CoRE\) Working Group list" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 26 Jan 2011 14:29:15 -0000 > > However in my opinion duplicate message detection can be realized=20 > > using a cross-layer optimization, by exploiting the=20 > > checksum field of UDP=20 That won't work with implementations, as UDP-Lite showed; it wound up getting its own protocol number because implementations relied on the UDP checksum field. >(a similar cross-layer optimization has been used to=20 > drop the need for Content-Length). Unlikely... details, please. From cabo@tzi.org Wed Jan 26 06:32:22 2011 Return-Path: X-Original-To: core@core3.amsl.com Delivered-To: core@core3.amsl.com Received: from localhost (localhost [127.0.0.1]) by core3.amsl.com (Postfix) with ESMTP id 803393A69D8 for ; Wed, 26 Jan 2011 06:32:22 -0800 (PST) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -106.213 X-Spam-Level: X-Spam-Status: No, score=-106.213 tagged_above=-999 required=5 tests=[AWL=0.036, BAYES_00=-2.599, HELO_EQ_DE=0.35, RCVD_IN_DNSWL_MED=-4, USER_IN_WHITELIST=-100] Received: from mail.ietf.org ([64.170.98.32]) by localhost (core3.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id 3HSVVNrJFr47 for ; Wed, 26 Jan 2011 06:32:21 -0800 (PST) Received: from informatik.uni-bremen.de (mailhost.informatik.uni-bremen.de [IPv6:2001:638:708:30c9::12]) by core3.amsl.com (Postfix) with ESMTP id 8877D3A69D6 for ; Wed, 26 Jan 2011 06:32:20 -0800 (PST) X-Virus-Scanned: amavisd-new at informatik.uni-bremen.de Received: from smtp-fb3.informatik.uni-bremen.de (smtp-fb3.informatik.uni-bremen.de [134.102.224.120]) by informatik.uni-bremen.de (8.14.3/8.14.3) with ESMTP id p0QEZC3q025249; Wed, 26 Jan 2011 15:35:12 +0100 (CET) Received: from [192.168.10.52] (christoph.dagstuhl.de [192.76.146.51]) (using TLSv1 with cipher AES128-SHA (128/128 bits)) (No client certificate requested) by smtp-fb3.informatik.uni-bremen.de (Postfix) with ESMTPSA id E7CCF77; Wed, 26 Jan 2011 15:35:11 +0100 (CET) Mime-Version: 1.0 (Apple Message framework v1082) Content-Type: text/plain; charset=us-ascii From: Carsten Bormann In-Reply-To: Date: Wed, 26 Jan 2011 15:35:45 +0100 Content-Transfer-Encoding: quoted-printable Message-Id: <849EEF41-2240-464D-AB18-8E3E65310C52@tzi.org> References: <7E731678-F1C8-416D-BB9E-07387BECBBEE@tzi.org> To: X-Mailer: Apple Mail (2.1082) Cc: zorzi@ing.unife.it, buincl@unife.it, core@ietf.org Subject: Re: [core] Message ID & Token: high overhead? X-BeenThere: core@ietf.org X-Mailman-Version: 2.1.9 Precedence: list List-Id: "Constrained RESTful Environments \(CoRE\) Working Group list" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 26 Jan 2011 14:32:22 -0000 On Jan 26, 2011, at 15:32, wrote: >> (a similar cross-layer optimization has been used to=20 >> drop the need for Content-Length). >=20 > Unlikely... details, please. I think he is saying we use the length of the datagram. But that is information that is exposed on the UDP service interface (as = are at least the source addresses); the checksum isn't. Gruesse, Carsten From stpeter@stpeter.im Wed Jan 26 06:33:32 2011 Return-Path: X-Original-To: core@core3.amsl.com Delivered-To: core@core3.amsl.com Received: from localhost (localhost [127.0.0.1]) by core3.amsl.com (Postfix) with ESMTP id 299EF3A69D9 for ; Wed, 26 Jan 2011 06:33:32 -0800 (PST) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -102.572 X-Spam-Level: X-Spam-Status: No, score=-102.572 tagged_above=-999 required=5 tests=[AWL=0.027, BAYES_00=-2.599, USER_IN_WHITELIST=-100] Received: from mail.ietf.org ([64.170.98.32]) by localhost (core3.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id O08fhTaXW1RP for ; Wed, 26 Jan 2011 06:33:31 -0800 (PST) Received: from stpeter.im (stpeter.im [207.210.219.233]) by core3.amsl.com (Postfix) with ESMTP id 0DE573A69DB for ; Wed, 26 Jan 2011 06:33:31 -0800 (PST) Received: from squire.local (dsl-251-175.dynamic-dsl.frii.net [216.17.251.175]) (Authenticated sender: stpeter) by stpeter.im (Postfix) with ESMTPSA id A1793400F6 for ; Wed, 26 Jan 2011 07:52:45 -0700 (MST) Message-ID: <4D40316E.3030903@stpeter.im> Date: Wed, 26 Jan 2011 07:36:30 -0700 From: Peter Saint-Andre User-Agent: Mozilla/5.0 (Macintosh; U; Intel Mac OS X 10.5; en-US; rv:1.9.2.13) Gecko/20101207 Thunderbird/3.1.7 MIME-Version: 1.0 To: core@ietf.org References: <7925360F-9E9E-41F8-8053-9AF6F244C7A9@tzi.org> <2C8F5968-9EB5-495D-A296-AB96B0E8E5A8@tzi.org> <23CB5E7A-3785-4E3C-AE68-914189E9C8AC@tzi.org> In-Reply-To: X-Enigmail-Version: 1.1.1 OpenPGP: url=http://www.saint-andre.com/me/stpeter.asc Content-Type: multipart/signed; protocol="application/pkcs7-signature"; micalg=sha1; boundary="------------ms030308010307090000030700" Subject: Re: [core] CoRE WG webex call on Jan 26, 1500 UTC X-BeenThere: core@ietf.org X-Mailman-Version: 2.1.9 Precedence: list List-Id: "Constrained RESTful Environments \(CoRE\) Working Group list" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 26 Jan 2011 14:33:32 -0000 This is a cryptographically signed message in MIME format. --------------ms030308010307090000030700 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: quoted-printable On 1/26/11 7:19 AM, tianlinyi 00175029 wrote: > Hi, Carsten >=20 > Is it possible for you to start the meeting 5-10 minutes earlier?=20 Usually the meeting host starts the meeting a bit early. I prefer 15 minutes, myself. Carsten said he might be a bit late, so hopefully someone else (Cullen?) has the host key for this call. Peter --=20 Peter Saint-Andre https://stpeter.im/ --------------ms030308010307090000030700 Content-Type: application/pkcs7-signature; name="smime.p7s" Content-Transfer-Encoding: base64 Content-Disposition: attachment; filename="smime.p7s" Content-Description: S/MIME Cryptographic Signature MIAGCSqGSIb3DQEHAqCAMIACAQExCzAJBgUrDgMCGgUAMIAGCSqGSIb3DQEHAQAAoIITzjCC BjQwggQcoAMCAQICASMwDQYJKoZIhvcNAQELBQAwfTELMAkGA1UEBhMCSUwxFjAUBgNVBAoT DVN0YXJ0Q29tIEx0ZC4xKzApBgNVBAsTIlNlY3VyZSBEaWdpdGFsIENlcnRpZmljYXRlIFNp Z25pbmcxKTAnBgNVBAMTIFN0YXJ0Q29tIENlcnRpZmljYXRpb24gQXV0aG9yaXR5MB4XDTA3 MTAyNDIxMDMzM1oXDTE3MTAyNDIxMDMzM1owgYwxCzAJBgNVBAYTAklMMRYwFAYDVQQKEw1T dGFydENvbSBMdGQuMSswKQYDVQQLEyJTZWN1cmUgRGlnaXRhbCBDZXJ0aWZpY2F0ZSBTaWdu aW5nMTgwNgYDVQQDEy9TdGFydENvbSBDbGFzcyAzIFByaW1hcnkgSW50ZXJtZWRpYXRlIENs aWVudCBDQTCCASIwDQYJKoZIhvcNAQEBBQADggEPADCCAQoCggEBALmjSW4SPiDKlAinvVeL ZOVfItiuP1aRHL530E7QUc9icCwL33+PH+Js1HAh8CgWFl34sOxx1FJyS/C4VLPRsqDfP72j 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From angelo.castellani@gmail.com Wed Jan 26 06:41:04 2011 Return-Path: X-Original-To: core@core3.amsl.com Delivered-To: core@core3.amsl.com Received: from localhost (localhost [127.0.0.1]) by core3.amsl.com (Postfix) with ESMTP id A59653A659A for ; Wed, 26 Jan 2011 06:41:04 -0800 (PST) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -2.651 X-Spam-Level: X-Spam-Status: No, score=-2.651 tagged_above=-999 required=5 tests=[AWL=0.326, BAYES_00=-2.599, FM_FORGED_GMAIL=0.622, RCVD_IN_DNSWL_LOW=-1] Received: from mail.ietf.org ([64.170.98.32]) by localhost (core3.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id eB4FPe0OP5ET for ; Wed, 26 Jan 2011 06:41:04 -0800 (PST) Received: from mail-qy0-f172.google.com (mail-qy0-f172.google.com [209.85.216.172]) by core3.amsl.com (Postfix) with ESMTP id E10553A657C for ; Wed, 26 Jan 2011 06:41:03 -0800 (PST) Received: by qyk34 with SMTP id 34so5436885qyk.10 for ; Wed, 26 Jan 2011 06:44:04 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma; h=domainkey-signature:mime-version:sender:in-reply-to:references:from :date:x-google-sender-auth:message-id:subject:to:cc:content-type; bh=LQ1QWAFlidrN8VBelancXZT+SAWkeVQKQbupzSQtyjM=; b=VOrsLGlkDf/LGnzi9YMfIIpc3m7w1DciZg9iZwhe+THW7KPOOT9g4jdBBoueHqQArm 1ZuKbgEVEidZ+DH57Oh3M9PgoB36xme0GxzzK+2b2CnwYP4+KWNgnAVnkY2CH6QxFVWj xYI2l84P1pkG8R/AHO/im7QYVwJJr3A6VXiMA= DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=mime-version:sender:in-reply-to:references:from:date :x-google-sender-auth:message-id:subject:to:cc:content-type; b=cdgVEe6SH0ljC0XvsJGOcfv2D3ZdkkcV1ZuhN51oNRizHwOh9VysPlLLNkywtHjzXL bOtGBl6hSIT93xXlHjl5mKzrCYDveGgSPRdiaohMdnJ3zS0FQvsTtqTrlmgygRHcH5eK eMIcJcb6PONt6YbpLxXnwrGVNLYT9l7nlWRF8= Received: by 10.229.91.2 with SMTP id k2mr435628qcm.260.1296053044247; Wed, 26 Jan 2011 06:44:04 -0800 (PST) MIME-Version: 1.0 Sender: angelo.castellani@gmail.com Received: by 10.229.218.69 with HTTP; Wed, 26 Jan 2011 06:43:44 -0800 (PST) In-Reply-To: <849EEF41-2240-464D-AB18-8E3E65310C52@tzi.org> References: <7E731678-F1C8-416D-BB9E-07387BECBBEE@tzi.org> <849EEF41-2240-464D-AB18-8E3E65310C52@tzi.org> From: "Angelo P. Castellani" Date: Wed, 26 Jan 2011 15:43:44 +0100 X-Google-Sender-Auth: yVeO_cg5_N3AWMEtPbNYt5VKlyc Message-ID: To: Carsten Bormann Content-Type: text/plain; charset=ISO-8859-1 Cc: zorzi@ing.unife.it, buincl@unife.it, core@ietf.org, L.Wood@surrey.ac.uk Subject: Re: [core] Message ID & Token: high overhead? X-BeenThere: core@ietf.org X-Mailman-Version: 2.1.9 Precedence: list List-Id: "Constrained RESTful Environments \(CoRE\) Working Group list" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 26 Jan 2011 14:41:04 -0000 > I think he is saying we use the length of the datagram. Exactly. > But that is information that is exposed on the UDP service interface (as are at least the source addresses); the checksum isn't. Sure the checksum isn't available always, but is always possible recompute it (as said in your previous message). Implementors can choose whether they prefer/can read that information (usually is possible on constrained devices) or recompute it (easier on larger hosts, as you said). In my opinion seems useful to explore this idea and its consequences.. Best, Angelo From tianlinyi@huawei.com Wed Jan 26 06:59:08 2011 Return-Path: X-Original-To: core@core3.amsl.com Delivered-To: core@core3.amsl.com Received: from localhost (localhost [127.0.0.1]) by core3.amsl.com (Postfix) with ESMTP id 7C2AB3A67C0 for ; Wed, 26 Jan 2011 06:59:08 -0800 (PST) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -1.706 X-Spam-Level: X-Spam-Status: No, score=-1.706 tagged_above=-999 required=5 tests=[BAYES_00=-2.599, CN_BODY_35=0.339, FH_RELAY_NODNS=1.451, HELO_MISMATCH_COM=0.553, MIME_CHARSET_FARAWAY=2.45, RCVD_IN_DNSWL_MED=-4, RDNS_NONE=0.1] Received: from mail.ietf.org ([64.170.98.32]) by localhost (core3.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id XqjhxTW3mOup for ; Wed, 26 Jan 2011 06:59:07 -0800 (PST) Received: from szxga04-in.huawei.com (unknown [119.145.14.67]) by core3.amsl.com (Postfix) with ESMTP id 699763A67B7 for ; Wed, 26 Jan 2011 06:59:07 -0800 (PST) Received: from huawei.com (szxga04-in [172.24.2.12]) by szxga04-in.huawei.com (iPlanet Messaging Server 5.2 HotFix 2.14 (built Aug 8 2006)) with ESMTP id <0LFM00JXHXR4F1@szxga04-in.huawei.com> for core@ietf.org; Wed, 26 Jan 2011 23:01:52 +0800 (CST) Received: from huawei.com ([172.24.2.119]) by szxga04-in.huawei.com (iPlanet Messaging Server 5.2 HotFix 2.14 (built Aug 8 2006)) with ESMTP id <0LFM00HAUXR4NF@szxga04-in.huawei.com> for core@ietf.org; Wed, 26 Jan 2011 23:01:52 +0800 (CST) Received: from [172.24.1.6] (Forwarded-For: [116.25.212.192]) by szxmc04-in.huawei.com (mshttpd); Wed, 26 Jan 2011 23:01:52 +0800 Date: Wed, 26 Jan 2011 23:01:52 +0800 From: tianlinyi 00175029 In-reply-to: To: "Angelo P. Castellani" Message-id: MIME-version: 1.0 X-Mailer: iPlanet Messenger Express 5.2 HotFix 2.14 (built Aug 8 2006) Content-type: multipart/mixed; boundary="Boundary_(ID_WypHgr3lNhqbM9zii5PDcw)" Content-language: zh-CN X-Accept-Language: zh-CN Priority: normal References: <20110125212845.11A853A6881@core3.amsl.com> <0840325E-DF84-4B33-A618-435D66CE371D@tzi.org> Cc: Michele Zorzi , Nicola Bui , core Subject: Re: [core] New Version Notification for draft-castellani-core-http-coap-mapping-00 X-BeenThere: core@ietf.org X-Mailman-Version: 2.1.9 Precedence: list List-Id: "Constrained RESTful Environments \(CoRE\) Working Group list" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 26 Jan 2011 14:59:08 -0000 This is a multi-part message in MIME format. --Boundary_(ID_WypHgr3lNhqbM9zii5PDcw) Content-type: text/plain; charset=gb2312 Content-transfer-encoding: quoted-printable Content-disposition: inline LOL=2E I planed to work on this mapping weeks ago=2E But you are much fas= ter than me=2E I will definitly interested in reviewing this draft=2E I w= ill provide comments later=3A) Cheers=2C Linyi ----- =D4=AD=D3=CA=BC=FE ----- =B7=A2=BC=FE=C8=CB=3A =22Angelo P=2E Castellani=22 =3Cangelo=40castellani= =2Enet=3E =C8=D5=C6=DA=3A =D0=C7=C6=DA=C8=FD=2C =D2=BB=D4=C2 26=C8=D5=2C 2011 =CF=C2= =CE=E76=3A15 =D6=F7=CC=E2=3A Re=3A =5Bcore=5D New Version Notification for draft-caste= llani-core-http-coap-mapping-00 =CA=D5=BC=FE=C8=CB=3A Carsten Bormann =3Ccabo=40tzi=2Eorg=3E =B3=AD=CB=CD=3A Michele Zorzi =3Czorzi=40ing=2Eunife=2Eit=3E=2C Nicola Bu= i =3Cbuincl=40unife=2Eit=3E=2C core =3Ccore=40ietf=2Eorg=3E =3E Thanks for the quick feedback=2E =3E = =3E Some responses inline=3A =3E = =3E =3E I think it is a great idea to have such a draft=2C because much o= f = =3E the information here will be informative=2C and the protocol = =3E definition should only contain those things that are normative = =3E (i=2Ee=2E=2C that we expect from every HTTP/CoAP intermediary)=2E =3E = =3E We agree that the draft should be informational=2C and if a normative= =3E part is required should be kept separate from this document=2E =3E = =3E =3E The most important aspect here is what can such a mapper do = =3E independently of knowledge about the application=2C and where do we = =3E need genuine knowledge of that (i=2Ee=2E=2C the mapper becomes an = =3E application gateway)=2E =3E = =3E My opinion is that a transparent proxy can be realized=2C if this =3E scenario/requirement is considered in the design of CoAP=2E =3E = =3E Probably right now some issues are present in the current CoAP =3E release=2C we will try to insert a more detailed = =3E analysis/discussion on =3E this in the next planned version=2E =3E = =3E =3E E=2Eg=2E=2C it would be nice if we came up with a convention for = =3E collecting the resource representations returned to the HTTP world = =3E from a CoAP multicast request=2E =3FSuch as a generic = =3E table/hash/dictionary thing (maybe we could use JSON=3F)=2E =3FBut so= me = =3E mappers will want to use more knowledge about the application to = =3E generate a more concise result (e=2Eg=2E=2C turning multicast into an= ycast)=2E =3E = =3E Multicast is a very important feature required for a constrained =3E crowded environment=2E =3E = =3E =3E Looking forward to a detailed review=2E=2E=2E =3E = =3E We look forward for a review=2C e=2Eg=2E about Section 4 on multicast= =2E =3E = =3E =3E Will you be in today=27s phone call=3F =3E = =3E Sure=2C we will be there=2E =3E = =3E Best=2C =3E Angelo =26 Salvatore =3E =5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F= =5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F =3E core mailing list =3E core=40ietf=2Eorg =3E https=3A//www=2Eietf=2Eorg/mailman/listinfo/core =3E --Boundary_(ID_WypHgr3lNhqbM9zii5PDcw) Content-type: text/x-vcard; name=t00175029.vcf; charset=gb2312 Content-transfer-encoding: 7BIT Content-disposition: attachment; filename=t00175029.vcf Content-description: Card for tianlinyi 00175029 begin:vcard n:34932;tianlinyi fn:tianlinyi 34932 version:2.1 email;internet:tianlinyi@huawei.com end:vcard --Boundary_(ID_WypHgr3lNhqbM9zii5PDcw)-- From cabo@tzi.org Wed Jan 26 06:59:25 2011 Return-Path: X-Original-To: core@core3.amsl.com Delivered-To: core@core3.amsl.com Received: from localhost (localhost [127.0.0.1]) by core3.amsl.com (Postfix) with ESMTP id 372403A67C0 for ; Wed, 26 Jan 2011 06:59:25 -0800 (PST) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -107.218 X-Spam-Level: X-Spam-Status: No, score=-107.218 tagged_above=-999 required=5 tests=[AWL=1.031, BAYES_00=-2.599, GB_I_INVITATION=-2, HELO_EQ_DE=0.35, RCVD_IN_DNSWL_MED=-4, USER_IN_WHITELIST=-100] Received: from mail.ietf.org ([64.170.98.32]) by localhost (core3.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id 0huuvFjLq2Bd for ; Wed, 26 Jan 2011 06:59:24 -0800 (PST) Received: from informatik.uni-bremen.de (mailhost.informatik.uni-bremen.de [IPv6:2001:638:708:30c9::12]) by core3.amsl.com (Postfix) with ESMTP id 1D1383A67B7 for ; Wed, 26 Jan 2011 06:59:22 -0800 (PST) X-Virus-Scanned: amavisd-new at informatik.uni-bremen.de Received: from smtp-fb3.informatik.uni-bremen.de (smtp-fb3.informatik.uni-bremen.de [134.102.224.120]) by informatik.uni-bremen.de (8.14.3/8.14.3) with ESMTP id p0QF2Fsm004676 for ; Wed, 26 Jan 2011 16:02:15 +0100 (CET) Received: from [192.168.10.52] (christoph.dagstuhl.de [192.76.146.51]) (using TLSv1 with cipher AES128-SHA (128/128 bits)) (No client certificate requested) by smtp-fb3.informatik.uni-bremen.de (Postfix) with ESMTPSA id 571CB98; Wed, 26 Jan 2011 16:02:15 +0100 (CET) Mime-Version: 1.0 (Apple Message framework v1082) Content-Type: text/plain; charset=us-ascii From: Carsten Bormann X-Priority: 3 In-Reply-To: <91F2AF58-6465-4CC6-B1D1-A1C0843AA31B@tzi.org> Date: Wed, 26 Jan 2011 16:02:49 +0100 Content-Transfer-Encoding: quoted-printable Message-Id: <4EE88F00-AFC2-48B1-86DF-44A0327A3EB1@tzi.org> References: <246702410.1288294444998.JavaMail.nobody@jsj2wl013.webex.com> <91F2AF58-6465-4CC6-B1D1-A1C0843AA31B@tzi.org> To: core Environments WG X-Mailer: Apple Mail (2.1082) Subject: Re: [core] Jan 26 Webex Meeting invitation: CORE WG Interim X-BeenThere: core@ietf.org X-Mailman-Version: 2.1.9 Precedence: list List-Id: "Constrained RESTful Environments \(CoRE\) Working Group list" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 26 Jan 2011 14:59:25 -0000 A webex meeting wouldn't be a webex meeting if it started without = problems... Let's see if we can get that fixed. Gruesse, Carsten On Jan 25, 2011, at 20:00, Carsten Bormann wrote: > Tomorrow! 1500 UTC. > Here are the access details again. >=20 > Gruesse, Carsten >=20 >> IETF Secretariat invites you to attend this online meeting.=20 >>=20 >> Topic: CORE WG Interim=20 >> Date: The 4th Wednesday of every 1 months, from Wednesday, November = 24, 2010 to Wednesday, February 23, 2011=20 >> Time: 7:00 am, Pacific Standard Time (San Francisco, GMT-08:00)=20 >> Meeting Number: 968 779 888=20 >> Meeting Password: (This meeting does not require a password.)=20 >>=20 >>=20 >> -------------------------------------------------------=20 >> To join the online meeting (Now from the Apple iPhone (R) too!)=20 >> -------------------------------------------------------=20 >> 1. Go to = https://workgreen.webex.com/workgreen/j.php?ED=3D148478702&UID=3D119101834= 2&RT=3DMiM0=20 >> 2. If requested, enter your name and email address.=20 >> 3. If a password is required, enter the meeting password: (This = meeting does not require a password.)=20 >> 4. Click "Join".=20 >>=20 >> To view in other time zones or languages, please click the link:=20 >> = https://workgreen.webex.com/workgreen/j.php?ED=3D148478702&UID=3D119101834= 2&ORT=3DMiM0=20 >>=20 >> -------------------------------------------------------=20 >> To join the audio conference only=20 >> -------------------------------------------------------=20 >> To receive a call back, provide your phone number when you join the = meeting, or call the number below and enter the access code.=20 >> Call-in toll number (US/Canada): 1-408-792-6300=20 >> Global call-in numbers: = https://workgreen.webex.com/workgreen/globalcallin.php?serviceType=3DMC&ED= =3D148478702&tollFree=3D0=20 >>=20 >> Access code:968 779 888=20 >>=20 >> -------------------------------------------------------=20 >> For assistance=20 >> -------------------------------------------------------=20 >> 1. Go to https://workgreen.webex.com/workgreen/mc=20 >> 2. On the left navigation bar, click "Support".=20 >>=20 >>=20 >> To add this meeting to your calendar program (for example Microsoft = Outlook), click this link:=20 >> = https://workgreen.webex.com/workgreen/j.php?ED=3D148478702&UID=3D119101834= 2&ICS=3DMI&LD=3D1&RD=3D2&ST=3D1&SHA2=3DveNIkert46u3Z39RM7KdaRRpdk2jFD7u36h= OBg9YwdM=3D&RT=3DMiM0=20 >>=20 >> The playback of UCF (Universal Communications Format) rich media = files requires appropriate players. To view this type of rich media = files in the meeting, please check whether you have the players = installed on your computer by going to = https://workgreen.webex.com/workgreen/systemdiagnosis.php=20 >>=20 >> Sign up for a free trial of WebEx=20 >> http://www.webex.com/go/mcemfreetrial=20 >>=20 >> http://www.webex.com=20 >>=20 >>=20 >>=20 >> IMPORTANT NOTICE: This WebEx service includes a feature that allows = audio and any documents and other materials exchanged or viewed during = the session to be recorded. By joining this session, you automatically = consent to such recordings. If you do not consent to the recording, = discuss your concerns with the meeting host prior to the start of the = recording or do not join the session. Please note that any such = recordings may be subject to discovery in the event of litigation.=20 >=20 From zach@sensinode.com Wed Jan 26 07:01:45 2011 Return-Path: X-Original-To: core@core3.amsl.com Delivered-To: core@core3.amsl.com Received: from localhost (localhost [127.0.0.1]) by core3.amsl.com (Postfix) with ESMTP id 09C553A67D4 for ; Wed, 26 Jan 2011 07:01:45 -0800 (PST) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -4.599 X-Spam-Level: X-Spam-Status: No, score=-4.599 tagged_above=-999 required=5 tests=[AWL=1.000, BAYES_00=-2.599, GB_I_INVITATION=-2, RCVD_IN_DNSWL_LOW=-1] Received: from mail.ietf.org ([64.170.98.32]) by localhost (core3.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id sn4pnypts0aK for ; Wed, 26 Jan 2011 07:01:43 -0800 (PST) Received: from auth-smtp.nebula.fi (auth-smtp.nebula.fi [217.30.180.105]) by core3.amsl.com (Postfix) with ESMTP id 4015A3A67D2 for ; Wed, 26 Jan 2011 07:01:43 -0800 (PST) Received: from [192.168.1.3] (line-8312.dyn.kponet.fi [85.29.78.215]) (authenticated bits=0) by auth-smtp.nebula.fi (8.13.4/8.13.4) with ESMTP id p0QF4dhK019823 (version=TLSv1/SSLv3 cipher=AES128-SHA bits=128 verify=NO); Wed, 26 Jan 2011 17:04:39 +0200 Mime-Version: 1.0 (Apple Message framework v1082) Content-Type: multipart/signed; boundary=Apple-Mail-79--80498496; protocol="application/pkcs7-signature"; micalg=sha1 From: Zach Shelby X-Priority: 3 In-Reply-To: <4EE88F00-AFC2-48B1-86DF-44A0327A3EB1@tzi.org> Date: Wed, 26 Jan 2011 17:04:41 +0200 Message-Id: <7B1A4CDE-BDF5-4A3D-89B3-CB61E0861649@sensinode.com> References: <246702410.1288294444998.JavaMail.nobody@jsj2wl013.webex.com> <91F2AF58-6465-4CC6-B1D1-A1C0843AA31B@tzi.org> <4EE88F00-AFC2-48B1-86DF-44A0327A3EB1@tzi.org> To: Carsten Bormann X-Mailer: Apple Mail (2.1082) Cc: core Environments WG Subject: Re: [core] Jan 26 Webex Meeting invitation: CORE WG Interim X-BeenThere: core@ietf.org X-Mailman-Version: 2.1.9 Precedence: list List-Id: "Constrained RESTful Environments \(CoRE\) Working Group list" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 26 Jan 2011 15:01:45 -0000 --Apple-Mail-79--80498496 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset=us-ascii The dial-in Webex is working, let's start there an share slides on-line = when someone can start as a host. We can follow the slides Carsten sent = around. +1-408-792-6300 Access code: 968 779 888 Zach On Jan 26, 2011, at 5:02 PM, Carsten Bormann wrote: > A webex meeting wouldn't be a webex meeting if it started without = problems... >=20 > Let's see if we can get that fixed. >=20 > Gruesse, Carsten >=20 > On Jan 25, 2011, at 20:00, Carsten Bormann wrote: >=20 >> Tomorrow! 1500 UTC. >> Here are the access details again. >>=20 >> Gruesse, Carsten >>=20 >>> IETF Secretariat invites you to attend this online meeting.=20 >>>=20 >>> Topic: CORE WG Interim=20 >>> Date: The 4th Wednesday of every 1 months, from Wednesday, November = 24, 2010 to Wednesday, February 23, 2011=20 >>> Time: 7:00 am, Pacific Standard Time (San Francisco, GMT-08:00)=20 >>> Meeting Number: 968 779 888=20 >>> Meeting Password: (This meeting does not require a password.)=20 >>>=20 >>>=20 >>> -------------------------------------------------------=20 >>> To join the online meeting (Now from the Apple iPhone (R) too!)=20 >>> -------------------------------------------------------=20 >>> 1. Go to = https://workgreen.webex.com/workgreen/j.php?ED=3D148478702&UID=3D119101834= 2&RT=3DMiM0=20 >>> 2. If requested, enter your name and email address.=20 >>> 3. If a password is required, enter the meeting password: (This = meeting does not require a password.)=20 >>> 4. Click "Join".=20 >>>=20 >>> To view in other time zones or languages, please click the link:=20 >>> = https://workgreen.webex.com/workgreen/j.php?ED=3D148478702&UID=3D119101834= 2&ORT=3DMiM0=20 >>>=20 >>> -------------------------------------------------------=20 >>> To join the audio conference only=20 >>> -------------------------------------------------------=20 >>> To receive a call back, provide your phone number when you join the = meeting, or call the number below and enter the access code.=20 >>> Call-in toll number (US/Canada): 1-408-792-6300=20 >>> Global call-in numbers: = https://workgreen.webex.com/workgreen/globalcallin.php?serviceType=3DMC&ED= =3D148478702&tollFree=3D0=20 >>>=20 >>> Access code:968 779 888=20 >>>=20 >>> -------------------------------------------------------=20 >>> For assistance=20 >>> -------------------------------------------------------=20 >>> 1. Go to https://workgreen.webex.com/workgreen/mc=20 >>> 2. On the left navigation bar, click "Support".=20 >>>=20 >>>=20 >>> To add this meeting to your calendar program (for example Microsoft = Outlook), click this link:=20 >>> = https://workgreen.webex.com/workgreen/j.php?ED=3D148478702&UID=3D119101834= 2&ICS=3DMI&LD=3D1&RD=3D2&ST=3D1&SHA2=3DveNIkert46u3Z39RM7KdaRRpdk2jFD7u36h= OBg9YwdM=3D&RT=3DMiM0=20 >>>=20 >>> The playback of UCF (Universal Communications Format) rich media = files requires appropriate players. To view this type of rich media = files in the meeting, please check whether you have the players = installed on your computer by going to = https://workgreen.webex.com/workgreen/systemdiagnosis.php=20 >>>=20 >>> Sign up for a free trial of WebEx=20 >>> http://www.webex.com/go/mcemfreetrial=20 >>>=20 >>> http://www.webex.com=20 >>>=20 >>>=20 >>>=20 >>> IMPORTANT NOTICE: This WebEx service includes a feature that allows = audio and any documents and other materials exchanged or viewed during = the session to be recorded. By joining this session, you automatically = consent to such recordings. If you do not consent to the recording, = discuss your concerns with the meeting host prior to the start of the = recording or do not join the session. Please note that any such = recordings may be subject to discovery in the event of litigation.=20 >>=20 >=20 > _______________________________________________ > core mailing list > core@ietf.org > https://www.ietf.org/mailman/listinfo/core --=20 Zach Shelby, Chief Nerd, Sensinode Ltd. http://zachshelby.org - My blog "On the Internet of Things" http://6lowpan.net - My book "6LoWPAN: The Wireless Embedded Internet" Mobile: +358 40 7796297 --Apple-Mail-79--80498496 Content-Disposition: attachment; filename=smime.p7s Content-Type: application/pkcs7-signature; name=smime.p7s Content-Transfer-Encoding: base64 MIAGCSqGSIb3DQEHAqCAMIACAQExCzAJBgUrDgMCGgUAMIAGCSqGSIb3DQEHAQAAoIIKGzCCBMww ggQ1oAMCAQICEByunWua9OYvIoqj2nRhbB4wDQYJKoZIhvcNAQEFBQAwXzELMAkGA1UEBhMCVVMx FzAVBgNVBAoTDlZlcmlTaWduLCBJbmMuMTcwNQYDVQQLEy5DbGFzcyAxIFB1YmxpYyBQcmltYXJ5 IENlcnRpZmljYXRpb24gQXV0aG9yaXR5MB4XDTA1MTAyODAwMDAwMFoXDTE1MTAyNzIzNTk1OVow gd0xCzAJBgNVBAYTAlVTMRcwFQYDVQQKEw5WZXJpU2lnbiwgSW5jLjEfMB0GA1UECxMWVmVyaVNp 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from [192.168.4.2] (rcdn-fluffy-8711.cisco.com [10.99.9.18]) by sj-core-2.cisco.com (8.13.8/8.14.3) with ESMTP id p0QFBQKe029893 for ; Wed, 26 Jan 2011 15:11:27 GMT From: Cullen Jennings Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: quoted-printable Date: Wed, 26 Jan 2011 08:13:18 -0700 Message-Id: <8F9FDD45-0F2F-4AB4-887A-F8CED9320005@cisco.com> To: core WG Mime-Version: 1.0 (Apple Message framework v1082) X-Mailer: Apple Mail (2.1082) Subject: [core] NEW WEBEX for todays call (right now) X-BeenThere: core@ietf.org X-Mailman-Version: 2.1.9 Precedence: list List-Id: "Constrained RESTful Environments \(CoRE\) Working Group list" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 26 Jan 2011 15:08:29 -0000 Click on this link to join = https://ciscosales.webex.com/ciscosales/e.php?AT=3DWMI&EventID=3D158221677= &PW=3D849c094c1b1d100b&RT=3DMiM2 From angelo.castellani@gmail.com Wed Jan 26 07:09:30 2011 Return-Path: X-Original-To: core@core3.amsl.com Delivered-To: core@core3.amsl.com Received: from localhost (localhost [127.0.0.1]) by core3.amsl.com (Postfix) with ESMTP id C31333A67E4 for ; Wed, 26 Jan 2011 07:09:30 -0800 (PST) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -2.664 X-Spam-Level: X-Spam-Status: No, score=-2.664 tagged_above=-999 required=5 tests=[AWL=0.313, BAYES_00=-2.599, FM_FORGED_GMAIL=0.622, RCVD_IN_DNSWL_LOW=-1] Received: from mail.ietf.org ([64.170.98.32]) by localhost (core3.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id SpcVSQMy7wOX for ; Wed, 26 Jan 2011 07:09:30 -0800 (PST) Received: from mail-vw0-f44.google.com (mail-vw0-f44.google.com [209.85.212.44]) by core3.amsl.com (Postfix) with ESMTP id DA4703A67DF for ; Wed, 26 Jan 2011 07:09:29 -0800 (PST) Received: by vws7 with SMTP id 7so356008vws.31 for ; Wed, 26 Jan 2011 07:12:30 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma; h=domainkey-signature:mime-version:sender:in-reply-to:references:from :date:x-google-sender-auth:message-id:subject:to:cc:content-type :content-transfer-encoding; bh=qyS8Hwoju7ItRztAeTgr/x9x2Bhb1ekqH/calZpRdYM=; b=bDvZwY7ML3zY0ITq0569kJyp7xMis66KGIK91PExNVh5rwO1vGqGLjAK2A//0L6jz/ EhOY6ZAVO9RzYLE/2ySQf75kVns9dWKLTb13HvCP0JV80bl3fnxqKN5bbzwdrtGzYXjz HL++YhlhPWWa1YUrMmiHCZqC/1w8LxqtFAnV8= DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=mime-version:sender:in-reply-to:references:from:date :x-google-sender-auth:message-id:subject:to:cc:content-type :content-transfer-encoding; b=iVWQTAgOGLojNmegh0C1tSHsPThXU+JJtEQ41ELg63ibO2vmgPT2MgUKZu4cC72Eo2 U3qpX+suS25gWNjy1jeIQgfepo6C27jOnxMbMN0p1ocSHnP9e9WXQU82wI42Nm0bgguq exPuxySPpL56F53za06HwtpCGhK+KgDM32bkU= Received: by 10.229.230.17 with SMTP id jk17mr475049qcb.184.1296054750098; Wed, 26 Jan 2011 07:12:30 -0800 (PST) MIME-Version: 1.0 Sender: angelo.castellani@gmail.com Received: by 10.229.218.69 with HTTP; Wed, 26 Jan 2011 07:12:09 -0800 (PST) In-Reply-To: References: <91473B88-3BDF-404D-947C-A717A3399243@cisco.com> From: "Angelo P. Castellani" Date: Wed, 26 Jan 2011 16:12:09 +0100 X-Google-Sender-Auth: qtMHWyQPydCBScJ7xwScDG5T8l0 Message-ID: To: Zach Shelby Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: quoted-printable Cc: core WG Subject: Re: [core] WGLC for draft-ietf-core-link-format-02 X-BeenThere: core@ietf.org X-Mailman-Version: 2.1.9 Precedence: list List-Id: "Constrained RESTful Environments \(CoRE\) Working Group list" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 26 Jan 2011 15:09:30 -0000 Zach, thanks for the comments. I quote a part of your message, mainly related to what needs clarifications about my previous message. > Not sure I understand the question. How you would use this draft for reso= urce discovery will depend completely on your application use case. Home au= tomation and building automation people for example have specific ways of u= sing this in mind. In large scale M2M systems (with one or more central ser= vers) we use the CoRE Link Format as a way to register resources with a res= ource directory. > > Each application will need to define how it uses discovery (peer-to-peer?= Local resource directory?), and most importantly, what the naming is for t= hat application. > > I am not sure how you came to the conclusion of relating humans with /.we= ll-known/core. The CoRE Link Format is a format meant to be used between ma= chines, I hope I helped to clarify that for you. Of course as it is just a = format, you need to define the common naming that your machines understand. In my opinion the service discovery cannot be "general": regarding all the services present in the network or in a node. But it should be service-specific, e.g. a multicast request for a "well-known" URI of a *single* service. Example 1: sent to a multicast group containing all temperature sensors - GET /temperature (get all temperature values, all nodes in the temperature multicast group respond?) Example 2: sent to a multicast group containing ambient related sensors - GET /.well-known/ambient-sensors (get a list of links to ambient-related sensors, all nodes in group respond) I have some doubts about the utility of "generic" multicast groups (all-hosts) and "generic" URIs... I hardly imagine use-cases different from debug where this "general" node capability discovery can be useful... I am looking forward to the proposed use cases mainly for this reason. Best, Angelo From tianlinyi@huawei.com Wed Jan 26 07:15:26 2011 Return-Path: X-Original-To: core@core3.amsl.com Delivered-To: core@core3.amsl.com Received: from localhost (localhost [127.0.0.1]) by core3.amsl.com (Postfix) with ESMTP id 3F8323A681B for ; Wed, 26 Jan 2011 07:15:26 -0800 (PST) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: 0.444 X-Spam-Level: X-Spam-Status: No, score=0.444 tagged_above=-999 required=5 tests=[AWL=-2.150, BAYES_00=-2.599, CN_BODY_35=0.339, FH_RELAY_NODNS=1.451, GB_I_INVITATION=-2, HELO_MISMATCH_COM=0.553, MANGLED_ONLINE=2.3, MIME_CHARSET_FARAWAY=2.45, RDNS_NONE=0.1] Received: from mail.ietf.org ([64.170.98.32]) by localhost (core3.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id Z4dXWW-gsDpO for ; Wed, 26 Jan 2011 07:15:25 -0800 (PST) Received: from szxga01-in.huawei.com (unknown [119.145.14.64]) by core3.amsl.com (Postfix) with ESMTP id AEE4B3A67EA for ; Wed, 26 Jan 2011 07:15:24 -0800 (PST) Received: from huawei.com (szxga05-in [172.24.2.49]) by szxga05-in.huawei.com (iPlanet Messaging Server 5.2 HotFix 2.14 (built Aug 8 2006)) with ESMTP id <0LFM00IZ0Y2GKC@szxga05-in.huawei.com> for core@ietf.org; Wed, 26 Jan 2011 23:08:41 +0800 (CST) Received: from huawei.com ([172.24.2.119]) by szxga05-in.huawei.com (iPlanet Messaging Server 5.2 HotFix 2.14 (built Aug 8 2006)) with ESMTP id <0LFM0040BY2GW3@szxga05-in.huawei.com> for core@ietf.org; Wed, 26 Jan 2011 23:08:40 +0800 (CST) Received: from [172.24.1.6] (Forwarded-For: [116.25.212.192]) by szxmc04-in.huawei.com (mshttpd); Wed, 26 Jan 2011 23:08:40 +0800 Date: Wed, 26 Jan 2011 23:08:40 +0800 From: tianlinyi 00175029 In-reply-to: <7B1A4CDE-BDF5-4A3D-89B3-CB61E0861649@sensinode.com> To: Zach Shelby Message-id: MIME-version: 1.0 X-Mailer: iPlanet Messenger Express 5.2 HotFix 2.14 (built Aug 8 2006) Content-type: multipart/mixed; boundary="Boundary_(ID_lq6Y8VSYSY3uk8dgrxr5iA)" Content-language: zh-CN X-Accept-Language: zh-CN Priority: normal References: <246702410.1288294444998.JavaMail.nobody@jsj2wl013.webex.com> <91F2AF58-6465-4CC6-B1D1-A1C0843AA31B@tzi.org> <4EE88F00-AFC2-48B1-86DF-44A0327A3EB1@tzi.org> <7B1A4CDE-BDF5-4A3D-89B3-CB61E0861649@sensinode.com> Cc: core Environments WG Subject: Re: [core] Jan 26 Webex Meeting invitation: CORE WG Interim X-BeenThere: core@ietf.org X-Mailman-Version: 2.1.9 Precedence: list List-Id: "Constrained RESTful Environments \(CoRE\) Working Group list" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 26 Jan 2011 15:15:26 -0000 This is a multi-part message in MIME format. --Boundary_(ID_lq6Y8VSYSY3uk8dgrxr5iA) Content-type: text/plain; charset=gb2312 Content-transfer-encoding: quoted-printable Content-disposition: inline I am not able to dial in from China=2E Is it possible for somebody to act= as the host=3F Cheers=2C Linyi ----- =D4=AD=D3=CA=BC=FE ----- =B7=A2=BC=FE=C8=CB=3A Zach Shelby =3Czach=40sensinode=2Ecom=3E =C8=D5=C6=DA=3A =D0=C7=C6=DA=C8=FD=2C =D2=BB=D4=C2 26=C8=D5=2C 2011 =CF=C2= =CE=E711=3A04 =D6=F7=CC=E2=3A Re=3A =5Bcore=5D Jan 26 Webex Meeting invitation=3A CORE = WG Interim =CA=D5=BC=FE=C8=CB=3A Carsten Bormann =3Ccabo=40tzi=2Eorg=3E =B3=AD=CB=CD=3A core Environments WG =3Ccore=40ietf=2Eorg=3E =3E The dial-in Webex is working=2C let=27s start there an share slides o= n- =3E line when someone can start as a host=2E We can follow the slides = =3E Carsten sent around=2E =3E = =3E +1-408-792-6300 =3E Access code=3A 968 779 888 =3E = =3E Zach =3E = =3E On Jan 26=2C 2011=2C at 5=3A02 PM=2C Carsten Bormann wrote=3A =3E = =3E =3E A webex meeting wouldn=27t be a webex meeting if it started = =3E without problems=2E=2E=2E =3E =3E = =3E =3E Let=27s see if we can get that fixed=2E =3E =3E = =3E =3E Gruesse=2C Carsten =3E =3E = =3E =3E On Jan 25=2C 2011=2C at 20=3A00=2C Carsten Bormann wrote=3A =3E =3E = =3E =3E=3E Tomorrow! 1500 UTC=2E =3E =3E=3E Here are the access details again=2E =3E =3E=3E = =3E =3E=3E Gruesse=2C Carsten =3E =3E=3E = =3E =3E=3E=3E IETF Secretariat invites you to attend this online meeting=2E= = =3E =3E=3E=3E = =3E =3E=3E=3E Topic=3A CORE WG Interim = =3E =3E=3E=3E Date=3A The 4th Wednesday of every 1 months=2C from Wednesd= ay=2C = =3E November 24=2C 2010 to Wednesday=2C February 23=2C 2011 = =3E =3E=3E=3E Time=3A 7=3A00 am=2C Pacific Standard Time (San Francisco=2C= GMT- =3E 08=3A00) = =3E =3E=3E=3E Meeting Number=3A 968 779 888 = =3E =3E=3E=3E Meeting Password=3A (This meeting does not require a passwo= rd=2E) = =3E =3E=3E=3E = =3E =3E=3E=3E = =3E =3E=3E=3E ------------------------------------------------------- = =3E =3E=3E=3E To join the online meeting (Now from the Apple iPhone (R) = =3E too!) = =3E =3E=3E=3E ------------------------------------------------------- = =3E =3E=3E=3E 1=2E Go to = =3E https=3A//workgreen=2Ewebex=2Ecom/workgreen/j=2Ephp=3FED=3D148478702=26= UID=3D1191018342=26RT=3DMiM0 = =3E =3E=3E=3E 2=2E If requested=2C enter your name and email address=2E = =3E =3E=3E=3E 3=2E If a password is required=2C enter the meeting passwor= d=3A = =3E (This meeting does not require a password=2E) = =3E =3E=3E=3E 4=2E Click =22Join=22=2E = =3E =3E=3E=3E = =3E =3E=3E=3E To view in other time zones or languages=2C please click th= e = =3E link=3A = =3E =3E=3E=3E = =3E https=3A//workgreen=2Ewebex=2Ecom/workgreen/j=2Ephp=3FED=3D148478702=26= UID=3D1191018342=26ORT=3DMiM0 = =3E =3E=3E=3E = =3E =3E=3E=3E ------------------------------------------------------- = =3E =3E=3E=3E To join the audio conference only = =3E =3E=3E=3E ------------------------------------------------------- = =3E =3E=3E=3E To receive a call back=2C provide your phone number when yo= u = =3E join the meeting=2C or call the number below and enter the access = =3E code=2E = =3E =3E=3E=3E Call-in toll number (US/Canada)=3A 1-408-792-6300 = =3E =3E=3E=3E Global call-in numbers=3A = =3E https=3A//workgreen=2Ewebex=2Ecom/workgreen/globalcallin=2Ephp=3Fserv= iceType=3DMC=26ED=3D148478702=26tollFree=3D0 = =3E =3E=3E=3E = =3E =3E=3E=3E Access code=3A968 779 888 = =3E =3E=3E=3E = =3E =3E=3E=3E ------------------------------------------------------- = =3E =3E=3E=3E For assistance = =3E =3E=3E=3E ------------------------------------------------------- = =3E =3E=3E=3E 1=2E Go to https=3A//workgreen=2Ewebex=2Ecom/workgreen/mc = =3E =3E=3E=3E 2=2E On the left navigation bar=2C click =22Support=22=2E = =3E =3E=3E=3E = =3E =3E=3E=3E = =3E =3E=3E=3E To add this meeting to your calendar program (for example = =3E Microsoft Outlook)=2C click this link=3A = =3E =3E=3E=3E = =3E https=3A//workgreen=2Ewebex=2Ecom/workgreen/j=2Ephp=3FED=3D148478702=26= UID=3D1191018342=26ICS=3DMI=26LD=3D1=26RD=3D2=26ST=3D1=26SHA2=3DveNIkert4= 6u3Z39RM7KdaRRpdk2jFD7u36hOBg9YwdM=3D=26RT=3DMiM0 = =3E =3E=3E=3E = =3E =3E=3E=3E The playback of UCF (Universal Communications Format) rich = =3E media files requires appropriate players=2E To view this type of = =3E rich media files in the meeting=2C please check whether you have the = =3E players installed on your computer by going to = =3E https=3A//workgreen=2Ewebex=2Ecom/workgreen/systemdiagnosis=2Ephp = =3E =3E=3E=3E = =3E =3E=3E=3E Sign up for a free trial of WebEx = =3E =3E=3E=3E http=3A//www=2Ewebex=2Ecom/go/mcemfreetrial = =3E =3E=3E=3E = =3E =3E=3E=3E http=3A//www=2Ewebex=2Ecom = =3E =3E=3E=3E = =3E =3E=3E=3E = =3E =3E=3E=3E = =3E =3E=3E=3E IMPORTANT NOTICE=3A This WebEx service includes a feature t= hat = =3E allows audio and any documents and other materials exchanged or = =3E viewed during the session to be recorded=2E By joining this session=2C= = =3E you automatically consent to such recordings=2E If you do not = =3E consent to the recording=2C discuss your concerns with the meeting = =3E host prior to the start of the recording or do not join the = =3E session=2E Please note that any such recordings may be subject to = =3E discovery in the event of litigation=2E = =3E =3E=3E = =3E =3E = =3E =3E =5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F= =5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F= =3E =3E core mailing list =3E =3E core=40ietf=2Eorg =3E =3E https=3A//www=2Eietf=2Eorg/mailman/listinfo/core =3E = =3E -- = =3E Zach Shelby=2C Chief Nerd=2C Sensinode Ltd=2E =3E http=3A//zachshelby=2Eorg - My blog =22On the Internet of Things=22 =3E http=3A//6lowpan=2Enet - My book =226LoWPAN=3A The Wireless Embedded = Internet=22 =3E Mobile=3A +358 40 7796297 =3E = =3E --Boundary_(ID_lq6Y8VSYSY3uk8dgrxr5iA) Content-type: text/x-vcard; name=t00175029.vcf; charset=gb2312 Content-transfer-encoding: 7BIT Content-disposition: attachment; filename=t00175029.vcf Content-description: Card for tianlinyi 00175029 begin:vcard n:34932;tianlinyi fn:tianlinyi 34932 version:2.1 email;internet:tianlinyi@huawei.com end:vcard --Boundary_(ID_lq6Y8VSYSY3uk8dgrxr5iA)-- From tianlinyi@huawei.com Wed Jan 26 07:44:54 2011 Return-Path: X-Original-To: core@core3.amsl.com Delivered-To: core@core3.amsl.com Received: from localhost (localhost [127.0.0.1]) by core3.amsl.com (Postfix) with ESMTP id 0E70E3A685D for ; Wed, 26 Jan 2011 07:44:54 -0800 (PST) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -2.026 X-Spam-Level: X-Spam-Status: No, score=-2.026 tagged_above=-999 required=5 tests=[AWL=2.470, BAYES_00=-2.599, FH_RELAY_NODNS=1.451, HELO_MISMATCH_COM=0.553, RCVD_IN_DNSWL_MED=-4, RDNS_NONE=0.1] Received: from mail.ietf.org ([64.170.98.32]) by localhost (core3.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id MWVNRXOVrhN7 for ; Wed, 26 Jan 2011 07:44:53 -0800 (PST) Received: from szxga04-in.huawei.com (unknown [119.145.14.67]) by core3.amsl.com (Postfix) with ESMTP id 22A113A67FC for ; Wed, 26 Jan 2011 07:44:53 -0800 (PST) Received: from huawei.com (szxga04-in [172.24.2.12]) by szxga04-in.huawei.com (iPlanet Messaging Server 5.2 HotFix 2.14 (built Aug 8 2006)) with ESMTP id <0LFM002KJZVHBQ@szxga04-in.huawei.com> for core@ietf.org; Wed, 26 Jan 2011 23:47:41 +0800 (CST) Received: from huawei.com ([172.24.2.119]) by szxga04-in.huawei.com (iPlanet Messaging Server 5.2 HotFix 2.14 (built Aug 8 2006)) with ESMTP id <0LFM00J4DZVHZ1@szxga04-in.huawei.com> for core@ietf.org; Wed, 26 Jan 2011 23:47:41 +0800 (CST) Received: from [172.24.1.6] (Forwarded-For: [116.25.212.192]) by szxmc04-in.huawei.com (mshttpd); Wed, 26 Jan 2011 23:47:41 +0800 Date: Wed, 26 Jan 2011 23:47:41 +0800 From: tianlinyi 00175029 In-reply-to: <8F9FDD45-0F2F-4AB4-887A-F8CED9320005@cisco.com> To: core WG Message-id: MIME-version: 1.0 X-Mailer: iPlanet Messenger Express 5.2 HotFix 2.14 (built Aug 8 2006) Content-type: multipart/mixed; boundary="Boundary_(ID_m/pvdhSwGJ0ps/uZHYW1vg)" Content-language: zh-CN X-Accept-Language: zh-CN Priority: normal References: <8F9FDD45-0F2F-4AB4-887A-F8CED9320005@cisco.com> Subject: [core] CoAP-04 or CoAP-HTTP Mapping for addressing difference between HTTP and CoAP X-BeenThere: core@ietf.org X-Mailman-Version: 2.1.9 Precedence: list List-Id: "Constrained RESTful Environments \(CoRE\) Working Group list" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 26 Jan 2011 15:44:54 -0000 This is a multi-part message in MIME format. --Boundary_(ID_m/pvdhSwGJ0ps/uZHYW1vg) Content-type: text/plain; charset=us-ascii Content-transfer-encoding: 7BIT Content-disposition: inline Hi, CoAP Folks Peter raised a review comment as follows: Be clear about how different HTTP and COAP methods are. I think it would be good to address this issue in HTTP-COAP mapping draft. By doing this we can clarify the difference between HTTP and CoAP not only for those methods but also other features. This can also avoid the complexity of CoAP draft. The CoAP draft itself will mainly focus on how CoAP protocol works. Cheers, Linyi --Boundary_(ID_m/pvdhSwGJ0ps/uZHYW1vg) Content-type: text/x-vcard; name=t00175029.vcf; charset=gb2312 Content-transfer-encoding: 7BIT Content-disposition: attachment; filename=t00175029.vcf Content-description: Card for tianlinyi 00175029 begin:vcard n:34932;tianlinyi fn:tianlinyi 34932 version:2.1 email;internet:tianlinyi@huawei.com end:vcard --Boundary_(ID_m/pvdhSwGJ0ps/uZHYW1vg)-- From prvs=80078BE9A1=guido.moritz@uni-rostock.de Wed Jan 26 07:59:32 2011 Return-Path: X-Original-To: core@core3.amsl.com Delivered-To: core@core3.amsl.com Received: from localhost (localhost [127.0.0.1]) by core3.amsl.com (Postfix) with ESMTP id 116213A6768 for ; Wed, 26 Jan 2011 07:59:32 -0800 (PST) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -1.845 X-Spam-Level: X-Spam-Status: No, score=-1.845 tagged_above=-999 required=5 tests=[AWL=0.404, BAYES_00=-2.599, DOS_OUTLOOK_TO_MX=1, HELO_EQ_DE=0.35, RCVD_IN_DNSWL_LOW=-1] Received: from mail.ietf.org ([64.170.98.32]) by localhost (core3.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id PFGCwRtDnk+6 for ; Wed, 26 Jan 2011 07:59:31 -0800 (PST) Received: from mailrelay1.uni-rostock.de (mailrelay1.uni-rostock.de [139.30.8.201]) by core3.amsl.com (Postfix) with ESMTP id 059773A6359 for ; Wed, 26 Jan 2011 07:59:31 -0800 (PST) From: Guido Moritz To: 'core' References: <20110126115643.698773A69AC@core3.amsl.com> In-Reply-To: <20110126115643.698773A69AC@core3.amsl.com> Date: Wed, 26 Jan 2011 17:02:39 +0100 Message-ID: <005a01cbbd72$74a80180$5df80480$@uni-rostock.de> MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable X-Mailer: Microsoft Outlook 14.0 Thread-Index: AQGRPi4AUXGF5/M0K2w1wchksPOWr5RYZw0w Content-Language: de Subject: [core] WG: New Version Notification for draft-moritz-core-soap-over-coap-00 X-BeenThere: core@ietf.org X-Mailman-Version: 2.1.9 Precedence: list List-Id: "Constrained RESTful Environments \(CoRE\) Working Group list" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 26 Jan 2011 15:59:32 -0000 Dear WG, I uploaded a new ID describing a SOAP over CoAP binding. Some of my = comments on CoAP-04 are based on this draft. So feel free to comment and = provide feedback (or throw me out of CoRE to get rid of the annoying = SOAP folk...).=20 http://tools.ietf.org/html/draft-moritz-core-soap-over-coap-00 Guido > -----Urspr=C3=BCngliche Nachricht----- > Von: IETF I-D Submission Tool [mailto:idsubmission@ietf.org] > Gesendet: Mittwoch, 26. Januar 2011 12:57 > An: Guido Moritz > Betreff: New Version Notification for = draft-moritz-core-soap-over-coap-00 >=20 >=20 > A new version of I-D, draft-moritz-core-soap-over-coap-00.txt has been > successfully submitted by Guido Moritz and posted to the IETF = repository. >=20 > Filename: draft-moritz-core-soap-over-coap > Revision: 00 > Title: SOAP-over-CoAP Binding > Creation_date: 2011-01-26 > WG ID: Independent Submission > Number_of_pages: 13 >=20 > Abstract: > The scope of this document is to provide a basis for a lightweight > SOAP over CoAP binding, to allow usage of SOAP Web services also in > resource constrained networks. >=20 >=20 >=20 > The IETF Secretariat. >=20 From salvatore.loreto@ericsson.com Wed Jan 26 09:36:20 2011 Return-Path: X-Original-To: core@core3.amsl.com Delivered-To: core@core3.amsl.com Received: from localhost (localhost [127.0.0.1]) by core3.amsl.com (Postfix) with ESMTP id 4EE473A686A for ; Wed, 26 Jan 2011 09:36:20 -0800 (PST) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -106.553 X-Spam-Level: X-Spam-Status: No, score=-106.553 tagged_above=-999 required=5 tests=[AWL=0.046, BAYES_00=-2.599, RCVD_IN_DNSWL_MED=-4, USER_IN_WHITELIST=-100] Received: from mail.ietf.org ([64.170.98.32]) by localhost (core3.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id LWHd-HcCli3t for ; Wed, 26 Jan 2011 09:36:19 -0800 (PST) Received: from mailgw9.se.ericsson.net (mailgw9.se.ericsson.net [193.180.251.57]) by core3.amsl.com (Postfix) with ESMTP id D9CA13A69C1 for ; Wed, 26 Jan 2011 09:36:18 -0800 (PST) X-AuditID: c1b4fb39-b7cfbae000005c8e-d5-4d405c47b7cb Received: from esessmw0237.eemea.ericsson.se (Unknown_Domain [153.88.253.125]) by mailgw9.se.ericsson.net (Symantec Mail Security) with SMTP id E2.B9.23694.74C504D4; Wed, 26 Jan 2011 18:39:19 +0100 (CET) Received: from mail.lmf.ericsson.se (153.88.115.8) by esessmw0237.eemea.ericsson.se (153.88.115.91) with Microsoft SMTP Server id 8.2.234.1; Wed, 26 Jan 2011 18:39:18 +0100 Received: from nomadiclab.lmf.ericsson.se (nomadiclab.lmf.ericsson.se [131.160.33.3]) by mail.lmf.ericsson.se (Postfix) with ESMTP id B7CFF2A58 for ; Wed, 26 Jan 2011 19:39:18 +0200 (EET) Received: from nomadiclab.lmf.ericsson.se (localhost [127.0.0.1]) by nomadiclab.lmf.ericsson.se (Postfix) with ESMTP id 8139850739 for ; Wed, 26 Jan 2011 19:39:18 +0200 (EET) Received: from Salvatore-Loretos-MacBook-Pro.local (localhost [127.0.0.1]) by nomadiclab.lmf.ericsson.se (Postfix) with ESMTP id 1326250628 for ; Wed, 26 Jan 2011 19:39:17 +0200 (EET) Message-ID: <4D405C45.9060001@ericsson.com> Date: Wed, 26 Jan 2011 18:39:17 +0100 From: Salvatore Loreto User-Agent: Mozilla/5.0 (Macintosh; U; Intel Mac OS X 10.6; en-US; rv:1.9.2.13) Gecko/20101207 Thunderbird/3.1.7 MIME-Version: 1.0 To: core@ietf.org References: <8F9FDD45-0F2F-4AB4-887A-F8CED9320005@cisco.com> In-Reply-To: Content-Type: text/plain; charset="ISO-8859-1"; format=flowed Content-Transfer-Encoding: 7bit X-Virus-Scanned: ClamAV using ClamSMTP X-Brightmail-Tracker: AAAAAA== Subject: Re: [core] CoAP-04 or CoAP-HTTP Mapping for addressing difference between HTTP and CoAP X-BeenThere: core@ietf.org X-Mailman-Version: 2.1.9 Precedence: list List-Id: "Constrained RESTful Environments \(CoRE\) Working Group list" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 26 Jan 2011 17:36:20 -0000 On 1/26/11 4:47 PM, tianlinyi 00175029 wrote: > Hi, CoAP Folks > > Peter raised a review comment as follows: > Be clear about how different HTTP and COAP methods are. > > I think it would be good to address this issue in HTTP-COAP mapping draft. By doing this we can clarify the difference between HTTP and CoAP not only for those methods but also other features. This can also avoid the complexity of CoAP draft. The CoAP draft itself will mainly focus on how CoAP protocol works. > > Cheers, > Linyi my idea is that there should be some text, within the CoAP draft, that clarify the differences between the HTTP methods and the CoAP methods so to not mislead people (implementers I should say) expert in HTTP but new to CoAP. We have also be sure that what we have in CoAP draft is easily mappable in HTTP through a stateless HTTP mapping as stated in the second bullet of Section 1.1 of coap-04 o A stateless HTTP mapping, allowing proxies to be built providing access to CoAP resources via HTTP in a uniform way or for HTTP simple interfaces to be realized alternatively over CoAP. (e.g. I think there are some issues in mapping CoAP deferred response to HTTP) then I don't mind if we detail how different HTTP and CoAP method are within the CoAP draft or we bring the issue out of the CoAP draft and put in a new one. cheers /Sal -- Salvatore Loreto www.sloreto.com From salvatore.loreto@ericsson.com Wed Jan 26 09:50:16 2011 Return-Path: X-Original-To: core@core3.amsl.com Delivered-To: core@core3.amsl.com Received: from localhost (localhost [127.0.0.1]) by core3.amsl.com (Postfix) with ESMTP id 4EFA13A681E for ; Wed, 26 Jan 2011 09:50:16 -0800 (PST) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -106.554 X-Spam-Level: X-Spam-Status: No, score=-106.554 tagged_above=-999 required=5 tests=[AWL=0.045, BAYES_00=-2.599, RCVD_IN_DNSWL_MED=-4, USER_IN_WHITELIST=-100] Received: from mail.ietf.org ([64.170.98.32]) by localhost (core3.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id dLhmQk2YH+7H for ; Wed, 26 Jan 2011 09:50:15 -0800 (PST) Received: from mailgw9.se.ericsson.net (mailgw9.se.ericsson.net [193.180.251.57]) by core3.amsl.com (Postfix) with ESMTP id DE6B33A6845 for ; Wed, 26 Jan 2011 09:50:14 -0800 (PST) X-AuditID: c1b4fb39-b7cfbae000005c8e-5f-4d405f8bcfa5 Received: from esessmw0237.eemea.ericsson.se (Unknown_Domain [153.88.253.125]) by mailgw9.se.ericsson.net (Symantec Mail Security) with SMTP id 93.9A.23694.B8F504D4; Wed, 26 Jan 2011 18:53:15 +0100 (CET) Received: from mail.lmf.ericsson.se (153.88.115.8) by esessmw0237.eemea.ericsson.se (153.88.115.91) with Microsoft SMTP Server id 8.2.234.1; Wed, 26 Jan 2011 18:53:14 +0100 Received: from nomadiclab.lmf.ericsson.se (nomadiclab.lmf.ericsson.se [131.160.33.3]) by mail.lmf.ericsson.se (Postfix) with ESMTP id B2EB02A58; Wed, 26 Jan 2011 19:53:14 +0200 (EET) Received: from nomadiclab.lmf.ericsson.se (localhost [127.0.0.1]) by nomadiclab.lmf.ericsson.se (Postfix) with ESMTP id 7CAFC50739; Wed, 26 Jan 2011 19:53:14 +0200 (EET) Received: from Salvatore-Loretos-MacBook-Pro.local (localhost [127.0.0.1]) by nomadiclab.lmf.ericsson.se (Postfix) with ESMTP id E68A650628; Wed, 26 Jan 2011 19:53:13 +0200 (EET) Message-ID: <4D405F89.8090405@ericsson.com> Date: Wed, 26 Jan 2011 18:53:13 +0100 From: Salvatore Loreto User-Agent: Mozilla/5.0 (Macintosh; U; Intel Mac OS X 10.6; en-US; rv:1.9.2.13) Gecko/20101207 Thunderbird/3.1.7 MIME-Version: 1.0 To: Zach Shelby References: <91473B88-3BDF-404D-947C-A717A3399243@cisco.com> <4D4003BE.9070406@ericsson.com> In-Reply-To: Content-Type: text/plain; charset="ISO-8859-1"; format=flowed Content-Transfer-Encoding: 7bit X-Virus-Scanned: ClamAV using ClamSMTP X-Brightmail-Tracker: AAAAAA== Cc: "core@ietf.org" Subject: Re: [core] WGLC for draft-ietf-core-link-format-02 X-BeenThere: core@ietf.org X-Mailman-Version: 2.1.9 Precedence: list List-Id: "Constrained RESTful Environments \(CoRE\) Working Group list" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 26 Jan 2011 17:50:16 -0000 On 1/26/11 1:16 PM, Zach Shelby wrote: >> > The context URI of a link (also called base URI in >> > [RFC3986]) conveyed in the CoRE Link Format is by default built from >> > the scheme and authority parts of the target URI. In the absence of >> > this information in the target URI, the context URI is built from the >> > scheme and authority that was used for referencing the resource >> > returning the set of links, replacing the path with an empty path. >> > Thus by default links can be thought of as describing a target >> > resource hosted by the server. >> > > In CoAP there is no difference between how a unicast or multicast Request URI is reconstructed. The scheme + authority are identical in both cases. Does that need more explanation Hi Zac, I am not questioning the difference between unicast and multicast Request URI in CoAP. what I had in mind is that when a client can send a GET /.well-know/core to a multicast Request URI, the answers (CoRE Link Format) it gets from the all the nodes registered to the multicast node should not go under the context of the multicast URI (in the absence of the authority part in an URI conveyed in the CoRE Link Format) and that does not seem to be clear in the text above. cheers /Sal -- Salvatore Loreto www.sloreto.com From cabo@tzi.org Wed Jan 26 10:23:32 2011 Return-Path: X-Original-To: core@core3.amsl.com Delivered-To: core@core3.amsl.com Received: from localhost (localhost [127.0.0.1]) by core3.amsl.com (Postfix) with ESMTP id 89C9C3A6834 for ; Wed, 26 Jan 2011 10:23:32 -0800 (PST) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -106.324 X-Spam-Level: X-Spam-Status: No, score=-106.324 tagged_above=-999 required=5 tests=[AWL=-0.075, BAYES_00=-2.599, HELO_EQ_DE=0.35, RCVD_IN_DNSWL_MED=-4, USER_IN_WHITELIST=-100] Received: from mail.ietf.org ([64.170.98.32]) by localhost (core3.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id TBR5ZyVFzEze for ; Wed, 26 Jan 2011 10:23:31 -0800 (PST) Received: from informatik.uni-bremen.de (mailhost.informatik.uni-bremen.de [IPv6:2001:638:708:30c9::12]) by core3.amsl.com (Postfix) with ESMTP id 464B63A67D8 for ; Wed, 26 Jan 2011 10:23:31 -0800 (PST) X-Virus-Scanned: amavisd-new at informatik.uni-bremen.de Received: from smtp-fb3.informatik.uni-bremen.de (smtp-fb3.informatik.uni-bremen.de [134.102.224.120]) by informatik.uni-bremen.de (8.14.3/8.14.3) with ESMTP id p0QIQODE019539; Wed, 26 Jan 2011 19:26:24 +0100 (CET) Received: from [192.168.10.52] (christoph.dagstuhl.de [192.76.146.51]) (using TLSv1 with cipher AES128-SHA (128/128 bits)) (No client certificate requested) by smtp-fb3.informatik.uni-bremen.de (Postfix) with ESMTPSA id 4ED571DC; Wed, 26 Jan 2011 19:26:24 +0100 (CET) Mime-Version: 1.0 (Apple Message framework v1082) Content-Type: text/plain; charset=us-ascii From: Carsten Bormann In-Reply-To: <4D405C45.9060001@ericsson.com> Date: Wed, 26 Jan 2011 19:26:58 +0100 Content-Transfer-Encoding: quoted-printable Message-Id: References: <8F9FDD45-0F2F-4AB4-887A-F8CED9320005@cisco.com> <4D405C45.9060001@ericsson.com> To: Salvatore Loreto X-Mailer: Apple Mail (2.1082) Cc: core@ietf.org Subject: Re: [core] CoAP-04 or CoAP-HTTP Mapping for addressing difference between HTTP and CoAP X-BeenThere: core@ietf.org X-Mailman-Version: 2.1.9 Precedence: list List-Id: "Constrained RESTful Environments \(CoRE\) Working Group list" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 26 Jan 2011 18:23:32 -0000 On Jan 26, 2011, at 18:39, Salvatore Loreto wrote (about stateless = proxies): > I think there are some issues in mapping CoAP deferred response to = HTTP There is no difference here between immediate and deferred -- in both = cases, an HTTP-to-CoAP proxy has to keep state until the response comes = in. That state is just a little less in the deferred case (there is no = message layer state to keep track of most of the time we are waiting for = the response). "Stateless" here refers to the lack of need to keep hard state *between* = exchanges. (You might still want to keep a [more or less limited] cache, which is = almost always going to be a good idea for this kind of intermediary.) Gruesse, Carsten From stpeter@stpeter.im Wed Jan 26 18:20:28 2011 Return-Path: X-Original-To: core@core3.amsl.com Delivered-To: core@core3.amsl.com Received: from localhost (localhost [127.0.0.1]) by core3.amsl.com (Postfix) with ESMTP id 2C12B3A6A59 for ; Wed, 26 Jan 2011 18:20:28 -0800 (PST) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -102.574 X-Spam-Level: X-Spam-Status: No, score=-102.574 tagged_above=-999 required=5 tests=[AWL=0.025, BAYES_00=-2.599, USER_IN_WHITELIST=-100] Received: from mail.ietf.org ([64.170.98.32]) by localhost (core3.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id pK+Z0YqMroJG for ; Wed, 26 Jan 2011 18:20:24 -0800 (PST) Received: from stpeter.im (stpeter.im [207.210.219.233]) by core3.amsl.com (Postfix) with ESMTP id 1DF623A6A5C for ; Wed, 26 Jan 2011 18:20:17 -0800 (PST) Received: from squire.local (dsl-251-175.dynamic-dsl.frii.net [216.17.251.175]) (Authenticated sender: stpeter) by stpeter.im (Postfix) with ESMTPSA id 6487C400F6 for ; Wed, 26 Jan 2011 19:39:35 -0700 (MST) Message-ID: <4D40D715.2010309@stpeter.im> Date: Wed, 26 Jan 2011 19:23:17 -0700 From: Peter Saint-Andre User-Agent: Mozilla/5.0 (Macintosh; U; Intel Mac OS X 10.5; en-US; rv:1.9.2.13) Gecko/20101207 Thunderbird/3.1.7 MIME-Version: 1.0 To: core WG X-Enigmail-Version: 1.1.1 OpenPGP: url=http://www.saint-andre.com/me/stpeter.asc Content-Type: multipart/signed; protocol="application/pkcs7-signature"; micalg=sha1; boundary="------------ms060308060005020600040208" Subject: [core] link hierarchies and RFC 5785 X-BeenThere: core@ietf.org X-Mailman-Version: 2.1.9 Precedence: list List-Id: "Constrained RESTful Environments \(CoRE\) Working Group list" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 27 Jan 2011 02:20:28 -0000 This is a cryptographically signed message in MIME format. --------------ms060308060005020600040208 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: quoted-printable After today's meeting I thought some more about the well-known URIs we're using. Some of them (the "hierarchical" URIs) are not in conformance with RFC 5785 (BTW I think that RFC needs to be a normative reference because one needs to understand its concepts in order to understand the link-format spec). RFC 5785 states: A well-known URI is a URI [RFC3986] whose path component begins with the characters "/.well-known/", and whose scheme is "HTTP", "HTTPS", or another scheme that has explicitly been specified to use well- known URIs. Applications that wish to mint new well-known URIs MUST register them, following the procedures in Section 5.1. For example, if an application registers the name 'example', the corresponding well-known URI on 'http://www.example.com/' would be 'http://www.example.com/.well-known/example'. Registered names MUST conform to the segment-nz production in [RFC3986]. There are two things to note here: 1. We might need to explicitly state somewhere that the 'coap:' scheme uses well-known URIs. 2. More significantly, the segment-nz production from RFC 3986 is: segment-nz =3D 1*pchar pchar =3D unreserved / pct-encoded / sub-delims / ":" / "@"= unreserved =3D ALPHA / DIGIT / "-" / "." / "_" / "~" pct-encoded =3D "%" HEXDIG HEXDIG sub-delims =3D "!" / "$" / "&" / "'" / "(" / ")" / "*" / "+" / "," / ";" / "=3D" Because "/" is not allowed in segment-nz, the following is not a legal name for a registered well-known URI: core/sensors Thus the following example in the link-format draft is problematic or plain illegal: REQ: GET /.well-known/core/sensors As a result, I think we might need to reconsider how we are handling hierarchies. Peter -- Peter Saint-Andre https://stpeter.im/ --=20 Peter Saint-Andre https://stpeter.im/ --------------ms060308060005020600040208 Content-Type: application/pkcs7-signature; name="smime.p7s" Content-Transfer-Encoding: base64 Content-Disposition: attachment; filename="smime.p7s" Content-Description: S/MIME Cryptographic Signature MIAGCSqGSIb3DQEHAqCAMIACAQExCzAJBgUrDgMCGgUAMIAGCSqGSIb3DQEHAQAAoIITzjCC BjQwggQcoAMCAQICASMwDQYJKoZIhvcNAQELBQAwfTELMAkGA1UEBhMCSUwxFjAUBgNVBAoT DVN0YXJ0Q29tIEx0ZC4xKzApBgNVBAsTIlNlY3VyZSBEaWdpdGFsIENlcnRpZmljYXRlIFNp Z25pbmcxKTAnBgNVBAMTIFN0YXJ0Q29tIENlcnRpZmljYXRpb24gQXV0aG9yaXR5MB4XDTA3 MTAyNDIxMDMzM1oXDTE3MTAyNDIxMDMzM1owgYwxCzAJBgNVBAYTAklMMRYwFAYDVQQKEw1T dGFydENvbSBMdGQuMSswKQYDVQQLEyJTZWN1cmUgRGlnaXRhbCBDZXJ0aWZpY2F0ZSBTaWdu aW5nMTgwNgYDVQQDEy9TdGFydENvbSBDbGFzcyAzIFByaW1hcnkgSW50ZXJtZWRpYXRlIENs aWVudCBDQTCCASIwDQYJKoZIhvcNAQEBBQADggEPADCCAQoCggEBALmjSW4SPiDKlAinvVeL ZOVfItiuP1aRHL530E7QUc9icCwL33+PH+Js1HAh8CgWFl34sOxx1FJyS/C4VLPRsqDfP72j 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From cabo@tzi.org Wed Jan 26 22:27:45 2011 Return-Path: X-Original-To: core@core3.amsl.com Delivered-To: core@core3.amsl.com Received: from localhost (localhost [127.0.0.1]) by core3.amsl.com (Postfix) with ESMTP id 92B873A6AEC for ; Wed, 26 Jan 2011 22:27:45 -0800 (PST) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -106.317 X-Spam-Level: X-Spam-Status: No, score=-106.317 tagged_above=-999 required=5 tests=[AWL=-0.068, BAYES_00=-2.599, HELO_EQ_DE=0.35, RCVD_IN_DNSWL_MED=-4, USER_IN_WHITELIST=-100] Received: from mail.ietf.org ([64.170.98.32]) by localhost (core3.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id UcOeV9Wu+j-N for ; Wed, 26 Jan 2011 22:27:44 -0800 (PST) Received: from informatik.uni-bremen.de (mailhost.informatik.uni-bremen.de [IPv6:2001:638:708:30c9::12]) by core3.amsl.com (Postfix) with ESMTP id E6CF33A6AE4 for ; Wed, 26 Jan 2011 22:27:43 -0800 (PST) X-Virus-Scanned: amavisd-new at informatik.uni-bremen.de Received: from smtp-fb3.informatik.uni-bremen.de (smtp-fb3.informatik.uni-bremen.de [134.102.224.120]) by informatik.uni-bremen.de (8.14.3/8.14.3) with ESMTP id p0R6Ucmv010049; Thu, 27 Jan 2011 07:30:39 +0100 (CET) Received: from [192.168.10.52] (christoph.dagstuhl.de [192.76.146.51]) (using TLSv1 with cipher AES128-SHA (128/128 bits)) (No client certificate requested) by smtp-fb3.informatik.uni-bremen.de (Postfix) with ESMTPSA id D4D922F8; Thu, 27 Jan 2011 07:30:38 +0100 (CET) Mime-Version: 1.0 (Apple Message framework v1082) Content-Type: text/plain; charset=us-ascii From: Carsten Bormann In-Reply-To: <4D40D715.2010309@stpeter.im> Date: Thu, 27 Jan 2011 07:31:12 +0100 Content-Transfer-Encoding: quoted-printable Message-Id: <57319637-DE97-4B2C-A02F-BD17282AEFC1@tzi.org> References: <4D40D715.2010309@stpeter.im> To: Peter Saint-Andre X-Mailer: Apple Mail (2.1082) Cc: core WG Subject: Re: [core] link hierarchies and RFC 5785 X-BeenThere: core@ietf.org X-Mailman-Version: 2.1.9 Precedence: list List-Id: "Constrained RESTful Environments \(CoRE\) Working Group list" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 27 Jan 2011 06:27:45 -0000 Indeed. Thanks, Peter, for correcting my misconception in the call. So, what is the purpose of the /.well-known registry? Registering single path components (segment-nz) that then are used to = form URIs from authorities (host/port pairs). The motivating example given is the well-known "robots.txt" that = crawlers expect at http://authority/robots.txt -- .well-known was meant = as a jail to stop more of these (e.g., we now have "cross-domain.xml") = from polluting the URI space and essentially restricting the server's = choice of how to name their URIs. And that's really the point -- servers MUST have free reign on their URI = space. I'm not sure why 5785 is mute on what servers may do with the = /.well-known path prefix and continuations other than a single = segment-nz. It says A well-known URI is a URI [RFC3986] whose path component begins with the characters "/.well-known/", and whose scheme is "HTTP", "HTTPS", or another scheme that has explicitly been specified to use well- known URIs. (So we indeed need to point out in core-coap that we are among the = latter.) But it also says: Registered names MUST conform to the segment-nz production in [RFC3986]. So, /.well-known/core/foo can neither be registered nor is it really = available for us because of the definition of a well-known URI. I read the intention as "servers are not free to allocate random stuff = here". I would be uncomfortable with a server deciding to offer a = nested link-format resource under "/.well-known/core/foo", even if = "core/foo" cannot be registered under 5785. I don't think we should incite server implementers to do so. There is no gain from using /.well-known/core/sensors instead of = /sensors/index.links or some such. Instead, we should point out that /.well-known is *not* meant for = unregistered URIs. Let the server organize its space (and maybe choose a short URI if = desired). And let's keep /.well-known clean. That also makes 5785 non-normative again, as it only tells *us* = spec-writers how to do our work, not the server implementers. Gruesse, Carsten PS.: By the way, maybe we should define a file extension for link-format = resources. (And having a common expectation on how something like this is named, = such as we expect to find an index.html on many HTTP servers that serve = HTML, is helpful for debugging.) From prvs=3008264E2B=guido.moritz@uni-rostock.de Thu Jan 27 00:55:41 2011 Return-Path: X-Original-To: core@core3.amsl.com Delivered-To: core@core3.amsl.com Received: from localhost (localhost [127.0.0.1]) by core3.amsl.com (Postfix) with ESMTP id 74CF128B23E for ; Thu, 27 Jan 2011 00:55:41 -0800 (PST) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -1.895 X-Spam-Level: X-Spam-Status: No, score=-1.895 tagged_above=-999 required=5 tests=[AWL=0.354, BAYES_00=-2.599, DOS_OUTLOOK_TO_MX=1, HELO_EQ_DE=0.35, RCVD_IN_DNSWL_LOW=-1] Received: from mail.ietf.org ([64.170.98.32]) by localhost (core3.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id Jx+ADWKxP02N for ; Thu, 27 Jan 2011 00:55:40 -0800 (PST) Received: from mailrelay1.uni-rostock.de (mailrelay1.uni-rostock.de [139.30.8.201]) by core3.amsl.com (Postfix) with ESMTP id 89C653A6B0A for ; Thu, 27 Jan 2011 00:55:40 -0800 (PST) From: Guido Moritz To: 'core' Date: Thu, 27 Jan 2011 09:58:58 +0100 Message-ID: <000f01cbbe00$6ef09890$4cd1c9b0$@uni-rostock.de> MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit X-Mailer: Microsoft Outlook 14.0 Thread-Index: Acu9/41vEh48IwCqTBWpP4BTSZL+gw== Content-Language: de Subject: [core] Allowed methods in link format X-BeenThere: core@ietf.org X-Mailman-Version: 2.1.9 Precedence: list List-Id: "Constrained RESTful Environments \(CoRE\) Working Group list" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 27 Jan 2011 08:55:41 -0000 Dear WG, I was wondering if it wouldn't be helpful to add a new extension in the CoRE link format, which describes the methods allowed on the resource. If there is no clear description, I would have to go through an iterative request process and have to receive a "Method Not Allowed" as indication for not permitted methods. To relax this, the extension is of course optional and must have a default value if not carried inline (e.g. GET is allowed by default). Best, Guido From cabo@tzi.org Thu Jan 27 00:59:00 2011 Return-Path: X-Original-To: core@core3.amsl.com Delivered-To: core@core3.amsl.com Received: from localhost (localhost [127.0.0.1]) by core3.amsl.com (Postfix) with ESMTP id 5B1DF28C10D for ; Thu, 27 Jan 2011 00:59:00 -0800 (PST) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -106.311 X-Spam-Level: X-Spam-Status: No, score=-106.311 tagged_above=-999 required=5 tests=[AWL=-0.062, BAYES_00=-2.599, HELO_EQ_DE=0.35, RCVD_IN_DNSWL_MED=-4, USER_IN_WHITELIST=-100] Received: from mail.ietf.org ([64.170.98.32]) by localhost (core3.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id NIF5l5rTig8z for ; Thu, 27 Jan 2011 00:58:59 -0800 (PST) Received: from informatik.uni-bremen.de (mailhost.informatik.uni-bremen.de [IPv6:2001:638:708:30c9::12]) by core3.amsl.com (Postfix) with ESMTP id 88A7228C105 for ; Thu, 27 Jan 2011 00:58:58 -0800 (PST) X-Virus-Scanned: amavisd-new at informatik.uni-bremen.de Received: from smtp-fb3.informatik.uni-bremen.de (smtp-fb3.informatik.uni-bremen.de [134.102.224.120]) by informatik.uni-bremen.de (8.14.3/8.14.3) with ESMTP id p0R91sOI029080; Thu, 27 Jan 2011 10:01:54 +0100 (CET) Received: from [192.168.10.52] (christoph.dagstuhl.de [192.76.146.51]) (using TLSv1 with cipher AES128-SHA (128/128 bits)) (No client certificate requested) by smtp-fb3.informatik.uni-bremen.de (Postfix) with ESMTPSA id E949A3E6; Thu, 27 Jan 2011 10:01:53 +0100 (CET) Mime-Version: 1.0 (Apple Message framework v1082) Content-Type: text/plain; charset=us-ascii From: Carsten Bormann In-Reply-To: <000f01cbbe00$6ef09890$4cd1c9b0$@uni-rostock.de> Date: Thu, 27 Jan 2011 10:02:30 +0100 Content-Transfer-Encoding: 7bit Message-Id: <3F67D69F-A796-4C90-8885-02F827D46BDE@tzi.org> References: <000f01cbbe00$6ef09890$4cd1c9b0$@uni-rostock.de> To: Guido Moritz X-Mailer: Apple Mail (2.1082) Cc: 'core' Subject: Re: [core] Allowed methods in link format X-BeenThere: core@ietf.org X-Mailman-Version: 2.1.9 Precedence: list List-Id: "Constrained RESTful Environments \(CoRE\) Working Group list" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 27 Jan 2011 08:59:00 -0000 On Jan 27, 2011, at 09:58, Guido Moritz wrote: > describes the methods allowed There are two ways to do this: 1) write it up right in the link format 2) reference a description (e.g., WADL). You can supply more detail in 2. Is what we would do right within 1 useful without 2? If we need 2 anyway to derive something useful I wouldn't do 1. Gruesse, Carsten From matthieu.vial@fr.non.schneider-electric.com Thu Jan 27 01:00:46 2011 Return-Path: X-Original-To: core@core3.amsl.com Delivered-To: core@core3.amsl.com Received: from localhost (localhost [127.0.0.1]) by core3.amsl.com (Postfix) with ESMTP id D816E3A6974; Thu, 27 Jan 2011 01:00:46 -0800 (PST) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -3.332 X-Spam-Level: X-Spam-Status: No, score=-3.332 tagged_above=-999 required=5 tests=[AWL=0.267, BAYES_00=-2.599, RCVD_IN_DNSWL_LOW=-1] Received: from mail.ietf.org ([64.170.98.32]) by localhost (core3.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id MGz+ZdYi8Ul7; Thu, 27 Jan 2011 01:00:46 -0800 (PST) Received: from mailX01.eud.schneider-electric.com (mailx01.eud.schneider-electric.com [205.167.7.35]) by core3.amsl.com (Postfix) with ESMTP id E89833A6970; Thu, 27 Jan 2011 01:00:45 -0800 (PST) Received: from ateui02.Schneider-Electric.com ([10.198.14.10]) by mailX01.eud.schneider-electric.com with ESMTP id 2011012709465750-81148 ; Thu, 27 Jan 2011 09:46:57 +0100 In-Reply-To: <57319637-DE97-4B2C-A02F-BD17282AEFC1@tzi.org> To: Carsten Bormann MIME-Version: 1.0 X-Mailer: Lotus Notes Release 6.5.6 March 06, 2007 From: matthieu.vial@fr.non.schneider-electric.com Message-ID: Date: Thu, 27 Jan 2011 10:03:40 +0100 X-MIMETrack: Serialize by Router on ATEUI02.Schneider-Electric.com/T/SVR/Schneider at 27/01/2011 10:03:43, Serialize complete at 27/01/2011 10:03:43, Itemize by SMTP Server on AXEU1OUT.schneider-electric.com/X/SVR/SEIxtra at 27/01/2011 09:46:57, Serialize by Router on AXEU1OUT.schneider-electric.com/X/SVR/SEIxtra at 27/01/2011 09:46:59, Serialize complete at 27/01/2011 09:46:59 Content-Type: text/plain; charset="US-ASCII" Cc: core-bounces@ietf.org, core WG Subject: Re: [core] link hierarchies and RFC 5785 X-BeenThere: core@ietf.org X-Mailman-Version: 2.1.9 Precedence: list List-Id: "Constrained RESTful Environments \(CoRE\) Working Group list" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 27 Jan 2011 09:00:47 -0000 Hi Carsten >I don't think we should incite server implementers to do so. >There is no gain from using /.well-known/core/sensors instead of /sensors/index.links or some such. >Instead, we should point out that /.well-known is *not* meant for unregistered URIs. >Let the server organize its space (and maybe choose a short URI if desired). And let's keep /.well-known clean. +1 >PS.: By the way, maybe we should define a file extension for link-format resources. >(And having a common expectation on how something like this is named, such as we expect to find an index.html on many HTTP servers that serve HTML, >is helpful for debugging.) I don't understand why you need a sort of implicit name. Why not let the server explicitly name the index resource in /.well-known/core? What option from the following ones do you have in mind? Personally I like 3). 1) REQ: GET /.well-known/core RES: 200 OK ;n="GPS position", ;rel="index";n="Geofence list";ct=40, ;rel="index";n="Pending alarms";ct=40;obs, REQ: GET /fnc/idx.lk RES: 200 OK ;ct=41, ;ct=41;sz=200, 2) REQ: GET /.well-known/core RES: 200 OK ;n="GPS position", ;rel="index";n="Geofence list";ct=40, ;rel="index";n="Pending alarms";ct=40;obs, REQ: GET /fnc/idx.lk RES: 200 OK ;ct=41, ;ct=41;sz=200, 3) REQ: GET /.well-known/core RES: 200 OK ;n="GPS position", ;rel="index";n="Geofence list";ct=40, ;rel="index";n="Pending alarms";ct=40;obs, REQ: GET /fnc RES: 200 OK ;ct=41, ;ct=41;sz=200, 4) REQ: GET /idx.lk RES: 200 OK ;n="GPS position", ;rel="index";n="Geofence list";ct=40, ;rel="index";n="Pending alarms";ct=40;obs, REQ: GET /fnc RES: 200 OK ;ct=41, ;ct=41;sz=200, Last question. How to structure a discovery repository without a /.well-known/core hierarchy? 1) A device can POST directly on /.well-known/core and the repository creates a new resource but not under /.well-known/core. 2) Or the device must start with a GET on /.well-known/core to learn the entry point of the repository service and then send a POST on that resource? Matthieu From zach@sensinode.com Thu Jan 27 01:14:00 2011 Return-Path: X-Original-To: core@core3.amsl.com Delivered-To: core@core3.amsl.com Received: from localhost (localhost [127.0.0.1]) by core3.amsl.com (Postfix) with ESMTP id A06C628C0D6 for ; Thu, 27 Jan 2011 01:14:00 -0800 (PST) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -3.524 X-Spam-Level: X-Spam-Status: No, score=-3.524 tagged_above=-999 required=5 tests=[AWL=0.075, BAYES_00=-2.599, RCVD_IN_DNSWL_LOW=-1] Received: from mail.ietf.org ([64.170.98.32]) by localhost (core3.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id TLsXzAoIrNex for ; Thu, 27 Jan 2011 01:13:56 -0800 (PST) Received: from auth-smtp.nebula.fi (auth-smtp.nebula.fi [217.30.180.105]) by core3.amsl.com (Postfix) with ESMTP id 615853A6951 for ; Thu, 27 Jan 2011 01:13:55 -0800 (PST) Received: from [213.145.205.246] ([213.145.205.246]) (authenticated bits=0) by auth-smtp.nebula.fi (8.13.4/8.13.4) with ESMTP id p0R9GsKK012862 (version=TLSv1/SSLv3 cipher=AES128-SHA bits=128 verify=NO); Thu, 27 Jan 2011 11:16:55 +0200 Mime-Version: 1.0 (Apple Message framework v1082) Content-Type: multipart/signed; boundary=Apple-Mail-128--14963235; protocol="application/pkcs7-signature"; micalg=sha1 From: Zach Shelby In-Reply-To: <000f01cbbe00$6ef09890$4cd1c9b0$@uni-rostock.de> Date: Thu, 27 Jan 2011 11:16:56 +0200 Message-Id: <28760390-16B6-4010-8F54-1CFED7186EB2@sensinode.com> References: <000f01cbbe00$6ef09890$4cd1c9b0$@uni-rostock.de> To: Guido Moritz X-Mailer: Apple Mail (2.1082) Cc: 'core' Subject: Re: [core] Allowed methods in link format X-BeenThere: core@ietf.org X-Mailman-Version: 2.1.9 Precedence: list List-Id: "Constrained RESTful Environments \(CoRE\) Working Group list" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 27 Jan 2011 09:14:00 -0000 --Apple-Mail-128--14963235 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset=us-ascii Hi Guido, On Jan 27, 2011, at 10:58 AM, Guido Moritz wrote: > Dear WG, >=20 > I was wondering if it wouldn't be helpful to add a new extension in = the CoRE > link format, which describes the methods allowed on the resource. If = there > is no clear description, I would have to go through an iterative = request > process and have to receive a "Method Not Allowed" as indication for = not > permitted methods.=20 This is the purpose of the interface description parameter. In REST = between machines only knowing what methods are allowed is not really = sufficient, you need to know input and output, query string parameters = etc. The d=3D attribute is meant to include a pre-defined name that = represents a defined interface to that resource, or e.g. reference a = WADL description. =20 What I foresee happening is that different industries (e.g. building = automation) will eventually define standard interface types. In the = SENSEI project this is what was done, a standard interface type was = defined for Sensor, Actuator and Parameter resource types. Those are = referenced in the link description with URNs which correspond to WADL = descriptions. urn:sensei:sensor urn:sensei:actuator urn:sensei:parameter Someone in CoRE could write a draft specifying some very simple = interface descriptions for doing generic things. I am not sure how = useful it is do define an interface type "Get" or "GetPostPut" for real = applications. But why not try and see if people find it useful. Zach >=20 > To relax this, the extension is of course optional and must have a = default > value if not carried inline (e.g. GET is allowed by default).=20 >=20 > Best, > Guido >=20 >=20 >=20 > _______________________________________________ > core mailing list > core@ietf.org > https://www.ietf.org/mailman/listinfo/core --=20 Zach Shelby, Chief Nerd, Sensinode Ltd. http://zachshelby.org - My blog "On the Internet of Things" http://6lowpan.net - My book "6LoWPAN: The Wireless Embedded Internet" Mobile: +358 40 7796297 --Apple-Mail-128--14963235 Content-Disposition: attachment; filename=smime.p7s Content-Type: application/pkcs7-signature; name=smime.p7s Content-Transfer-Encoding: base64 MIAGCSqGSIb3DQEHAqCAMIACAQExCzAJBgUrDgMCGgUAMIAGCSqGSIb3DQEHAQAAoIIKGzCCBMww ggQ1oAMCAQICEByunWua9OYvIoqj2nRhbB4wDQYJKoZIhvcNAQEFBQAwXzELMAkGA1UEBhMCVVMx FzAVBgNVBAoTDlZlcmlTaWduLCBJbmMuMTcwNQYDVQQLEy5DbGFzcyAxIFB1YmxpYyBQcmltYXJ5 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X-Original-To: core@core3.amsl.com Delivered-To: core@core3.amsl.com Received: from localhost (localhost [127.0.0.1]) by core3.amsl.com (Postfix) with ESMTP id 31B6328C130; Thu, 27 Jan 2011 01:24:13 -0800 (PST) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -106.303 X-Spam-Level: X-Spam-Status: No, score=-106.303 tagged_above=-999 required=5 tests=[AWL=-0.054, BAYES_00=-2.599, HELO_EQ_DE=0.35, RCVD_IN_DNSWL_MED=-4, USER_IN_WHITELIST=-100] Received: from mail.ietf.org ([64.170.98.32]) by localhost (core3.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id 2SLa9hsUOWzR; Thu, 27 Jan 2011 01:24:12 -0800 (PST) Received: from informatik.uni-bremen.de (mailhost.informatik.uni-bremen.de [IPv6:2001:638:708:30c9::12]) by core3.amsl.com (Postfix) with ESMTP id 969AE28C10D; Thu, 27 Jan 2011 01:24:07 -0800 (PST) X-Virus-Scanned: amavisd-new at informatik.uni-bremen.de Received: from smtp-fb3.informatik.uni-bremen.de (smtp-fb3.informatik.uni-bremen.de [134.102.224.120]) by informatik.uni-bremen.de (8.14.3/8.14.3) with ESMTP id p0R9R16L008890; Thu, 27 Jan 2011 10:27:01 +0100 (CET) Received: from [192.168.10.52] (christoph.dagstuhl.de [192.76.146.51]) (using TLSv1 with cipher AES128-SHA (128/128 bits)) (No client certificate requested) by smtp-fb3.informatik.uni-bremen.de (Postfix) with ESMTPSA id 3DC24421; Thu, 27 Jan 2011 10:27:01 +0100 (CET) Mime-Version: 1.0 (Apple Message framework v1082) Content-Type: text/plain; charset=us-ascii From: Carsten Bormann In-Reply-To: Date: Thu, 27 Jan 2011 10:27:38 +0100 Content-Transfer-Encoding: quoted-printable Message-Id: <0F367B98-1E1A-4DE6-95C2-59B8DA82D908@tzi.org> References: To: matthieu.vial@fr.non.schneider-electric.com X-Mailer: Apple Mail (2.1082) Cc: core-bounces@ietf.org, core WG Subject: Re: [core] link hierarchies and RFC 5785 X-BeenThere: core@ietf.org X-Mailman-Version: 2.1.9 Precedence: list List-Id: "Constrained RESTful Environments \(CoRE\) Working Group list" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 27 Jan 2011 09:24:13 -0000 On Jan 27, 2011, at 10:03, matthieu.vial@fr.non.schneider-electric.com = wrote: > I don't understand why you need a sort of implicit name. That's not what I said. We should do full HATEOAS as you proposed. I just think it would *also* be useful to establish some conventions = that might help in debugging. But these are not for machine interpretation. Gruesse, Carsten From zach@sensinode.com Thu Jan 27 01:25:24 2011 Return-Path: X-Original-To: core@core3.amsl.com Delivered-To: core@core3.amsl.com Received: from localhost (localhost [127.0.0.1]) by core3.amsl.com (Postfix) with ESMTP id 7F5B228C119 for ; Thu, 27 Jan 2011 01:25:24 -0800 (PST) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -3.539 X-Spam-Level: X-Spam-Status: No, score=-3.539 tagged_above=-999 required=5 tests=[AWL=0.060, BAYES_00=-2.599, RCVD_IN_DNSWL_LOW=-1] Received: from mail.ietf.org ([64.170.98.32]) by localhost (core3.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id NbxpCcuq3bQc for ; Thu, 27 Jan 2011 01:25:23 -0800 (PST) Received: from auth-smtp.nebula.fi (auth-smtp.nebula.fi [217.30.180.105]) by core3.amsl.com (Postfix) with ESMTP id ABEC428C10D for ; Thu, 27 Jan 2011 01:25:22 -0800 (PST) Received: from [213.145.205.246] ([213.145.205.246]) (authenticated bits=0) by auth-smtp.nebula.fi (8.13.4/8.13.4) with ESMTP id p0R9SLeF018557 (version=TLSv1/SSLv3 cipher=AES128-SHA bits=128 verify=NO); Thu, 27 Jan 2011 11:28:21 +0200 Mime-Version: 1.0 (Apple Message framework v1082) Content-Type: multipart/signed; boundary=Apple-Mail-129--14275984; protocol="application/pkcs7-signature"; micalg=sha1 From: Zach Shelby In-Reply-To: <57319637-DE97-4B2C-A02F-BD17282AEFC1@tzi.org> Date: Thu, 27 Jan 2011 11:28:23 +0200 Message-Id: <7A8CBB81-E972-4102-BDEA-69267F94F2B4@sensinode.com> References: <4D40D715.2010309@stpeter.im> <57319637-DE97-4B2C-A02F-BD17282AEFC1@tzi.org> To: Carsten Bormann X-Mailer: Apple Mail (2.1082) Cc: core WG Subject: Re: [core] link hierarchies and RFC 5785 X-BeenThere: core@ietf.org X-Mailman-Version: 2.1.9 Precedence: list List-Id: "Constrained RESTful Environments \(CoRE\) Working Group list" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 27 Jan 2011 09:25:24 -0000 --Apple-Mail-129--14275984 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset=us-ascii On Jan 27, 2011, at 8:31 AM, Carsten Bormann wrote: > Indeed. Thanks, Peter, for correcting my misconception in the call. >=20 > So, what is the purpose of the /.well-known registry? > Registering single path components (segment-nz) that then are used to = form URIs from authorities (host/port pairs). > The motivating example given is the well-known "robots.txt" that = crawlers expect at http://authority/robots.txt -- .well-known was meant = as a jail to stop more of these (e.g., we now have "cross-domain.xml") = from polluting the URI space and essentially restricting the server's = choice of how to name their URIs. >=20 > And that's really the point -- servers MUST have free reign on their = URI space. >=20 > I'm not sure why 5785 is mute on what servers may do with the = /.well-known path prefix and continuations other than a single = segment-nz. > It says >=20 > A well-known URI is a URI [RFC3986] whose path component begins with > the characters "/.well-known/", and whose scheme is "HTTP", "HTTPS", > or another scheme that has explicitly been specified to use well- > known URIs. >=20 > (So we indeed need to point out in core-coap that we are among the = latter.) Yep, and there RFC5785 would be normative I would think. I will make a = ticket. > But it also says: >=20 > Registered names MUST conform to the segment-nz production in > [RFC3986]. >=20 > So, /.well-known/core/foo can neither be registered nor is it really = available for us because of the definition of a well-known URI. > I read the intention as "servers are not free to allocate random stuff = here". I would be uncomfortable with a server deciding to offer a = nested link-format resource under "/.well-known/core/foo", even if = "core/foo" cannot be registered under 5785. These sub-resources are dynamic, but I see the point. > I don't think we should incite server implementers to do so. > There is no gain from using /.well-known/core/sensors instead of = /sensors/index.links or some such. > Instead, we should point out that /.well-known is *not* meant for = unregistered URIs. > Let the server organize its space (and maybe choose a short URI if = desired). And let's keep /.well-known clean. OK, I can live with leaving out the hierarchy recommendation from = link-format if we want to be careful with RFC5785.=20 Does anyone have an issue with removing the hierarchy? At least I would = have liked to be able to build up a resource directory under = /.well-known/core on a proxy at least.=20 >=20 > That also makes 5785 non-normative again, as it only tells *us* = spec-writers how to do our work, not the server implementers. We just need to be explicit that /.well-known/core is a single resource = and the server MUST NOT create sub-resources there. >=20 > Gruesse, Carsten >=20 > PS.: By the way, maybe we should define a file extension for = link-format resources. > (And having a common expectation on how something like this is named, = such as we expect to find an index.html on many HTTP servers that serve = HTML, is helpful for debugging.) Interesting idea, but in my opinion we don't need a .link style suffix = for those resources, I think it is enough that the content-type and = relation is indicated for that resource in /.well-known/core as Matthieu = pointed out. Zach >=20 > _______________________________________________ > core mailing list > core@ietf.org > https://www.ietf.org/mailman/listinfo/core --=20 Zach Shelby, Chief Nerd, Sensinode Ltd. http://zachshelby.org - My blog "On the Internet of Things" http://6lowpan.net - My book "6LoWPAN: The Wireless Embedded Internet" Mobile: +358 40 7796297 --Apple-Mail-129--14275984 Content-Disposition: attachment; filename=smime.p7s Content-Type: application/pkcs7-signature; name=smime.p7s Content-Transfer-Encoding: base64 MIAGCSqGSIb3DQEHAqCAMIACAQExCzAJBgUrDgMCGgUAMIAGCSqGSIb3DQEHAQAAoIIKGzCCBMww ggQ1oAMCAQICEByunWua9OYvIoqj2nRhbB4wDQYJKoZIhvcNAQEFBQAwXzELMAkGA1UEBhMCVVMx FzAVBgNVBAoTDlZlcmlTaWduLCBJbmMuMTcwNQYDVQQLEy5DbGFzcyAxIFB1YmxpYyBQcmltYXJ5 IENlcnRpZmljYXRpb24gQXV0aG9yaXR5MB4XDTA1MTAyODAwMDAwMFoXDTE1MTAyNzIzNTk1OVow gd0xCzAJBgNVBAYTAlVTMRcwFQYDVQQKEw5WZXJpU2lnbiwgSW5jLjEfMB0GA1UECxMWVmVyaVNp Z24gVHJ1c3QgTmV0d29yazE7MDkGA1UECxMyVGVybXMgb2YgdXNlIGF0IGh0dHBzOi8vd3d3LnZl 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micalg=sha1 From: Zach Shelby In-Reply-To: Date: Thu, 27 Jan 2011 11:34:59 +0200 Message-Id: <8323B114-5CC2-4D35-BE86-4285346D2187@sensinode.com> References: To: matthieu.vial@fr.non.schneider-electric.com X-Mailer: Apple Mail (2.1082) Cc: core WG , core-bounces@ietf.org Subject: Re: [core] link hierarchies and RFC 5785 X-BeenThere: core@ietf.org X-Mailman-Version: 2.1.9 Precedence: list List-Id: "Constrained RESTful Environments \(CoRE\) Working Group list" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 27 Jan 2011 09:32:01 -0000 --Apple-Mail-130--13880511 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset=us-ascii Hi, On Jan 27, 2011, at 11:03 AM, = matthieu.vial@fr.non.schneider-electric.com wrote: >=20 >> PS.: By the way, maybe we should define a file extension for = link-format=20 > resources. >> (And having a common expectation on how something like this is named,=20= > such as we expect to find an index.html on many HTTP servers that = serve=20 > HTML, >is helpful for debugging.) >=20 > I don't understand why you need a sort of implicit name. Why not let = the=20 > server explicitly name the index resource in /.well-known/core? > What option from the following ones do you have in mind? Personally I = like=20 > 3). Sure, 2 and 3 would both be legal and really up to the server. You can = name your index fcn.lk or fcn.link if you like. I agree that = /.well-known/core is the right entry point. 1 is broken because = /fcn/idx.lk is not listed in the link list. =20 > 1) > REQ: GET /.well-known/core > RES: 200 OK > ;n=3D"GPS position", > ;rel=3D"index";n=3D"Geofence list";ct=3D40, > ;rel=3D"index";n=3D"Pending alarms";ct=3D40;obs, >=20 > REQ: GET /fnc/idx.lk > RES: 200 OK > ;ct=3D41, > ;ct=3D41;sz=3D200, >=20 > 2) > REQ: GET /.well-known/core > RES: 200 OK > ;n=3D"GPS position", > ;rel=3D"index";n=3D"Geofence list";ct=3D40, > ;rel=3D"index";n=3D"Pending alarms";ct=3D40;obs, >=20 > REQ: GET /fnc/idx.lk > RES: 200 OK > ;ct=3D41, > ;ct=3D41;sz=3D200, >=20 > 3) > REQ: GET /.well-known/core > RES: 200 OK > ;n=3D"GPS position", > ;rel=3D"index";n=3D"Geofence list";ct=3D40, > ;rel=3D"index";n=3D"Pending alarms";ct=3D40;obs, >=20 > REQ: GET /fnc > RES: 200 OK > ;ct=3D41, > ;ct=3D41;sz=3D200, >=20 > 4) > REQ: GET /idx.lk > RES: 200 OK > ;n=3D"GPS position", > ;rel=3D"index";n=3D"Geofence list";ct=3D40, > ;rel=3D"index";n=3D"Pending alarms";ct=3D40;obs, >=20 > REQ: GET /fnc > RES: 200 OK > ;ct=3D41, > ;ct=3D41;sz=3D200, >=20 >=20 > Last question. How to structure a discovery repository without a=20 > /.well-known/core hierarchy? > 1) A device can POST directly on /.well-known/core and the repository=20= > creates a new resource but not under /.well-known/core. > 2) Or the device must start with a GET on /.well-known/core to learn = the=20 > entry point of the repository service and then send a POST on that=20 > resource? That is an issue that bothers me too. I would probably do 1) in order to = avoid forcing nodes to first discover where the directory entry point = is. Or a resource directory could register its own well-known URI e.g. = "/.well-known/core-rd".=20 Zach >=20 > Matthieu > _______________________________________________ > core mailing list > core@ietf.org > https://www.ietf.org/mailman/listinfo/core --=20 Zach Shelby, Chief Nerd, Sensinode Ltd. http://zachshelby.org - My blog "On the Internet of Things" http://6lowpan.net - My book "6LoWPAN: The Wireless Embedded Internet" Mobile: +358 40 7796297 --Apple-Mail-130--13880511 Content-Disposition: attachment; filename=smime.p7s Content-Type: application/pkcs7-signature; name=smime.p7s Content-Transfer-Encoding: base64 MIAGCSqGSIb3DQEHAqCAMIACAQExCzAJBgUrDgMCGgUAMIAGCSqGSIb3DQEHAQAAoIIKGzCCBMww ggQ1oAMCAQICEByunWua9OYvIoqj2nRhbB4wDQYJKoZIhvcNAQEFBQAwXzELMAkGA1UEBhMCVVMx FzAVBgNVBAoTDlZlcmlTaWduLCBJbmMuMTcwNQYDVQQLEy5DbGFzcyAxIFB1YmxpYyBQcmltYXJ5 IENlcnRpZmljYXRpb24gQXV0aG9yaXR5MB4XDTA1MTAyODAwMDAwMFoXDTE1MTAyNzIzNTk1OVow 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Delivered-To: core@core3.amsl.com Received: from localhost (localhost [127.0.0.1]) by core3.amsl.com (Postfix) with ESMTP id 0161628C122 for ; Thu, 27 Jan 2011 01:46:17 -0800 (PST) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -1.935 X-Spam-Level: X-Spam-Status: No, score=-1.935 tagged_above=-999 required=5 tests=[AWL=0.314, BAYES_00=-2.599, DOS_OUTLOOK_TO_MX=1, HELO_EQ_DE=0.35, RCVD_IN_DNSWL_LOW=-1] Received: from mail.ietf.org ([64.170.98.32]) by localhost (core3.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id qL-tAN1Linzh for ; Thu, 27 Jan 2011 01:46:16 -0800 (PST) Received: from mailrelay1.uni-rostock.de (mailrelay1.uni-rostock.de [139.30.8.201]) by core3.amsl.com (Postfix) with ESMTP id F3DF928C11F for ; Thu, 27 Jan 2011 01:46:15 -0800 (PST) From: Guido Moritz To: 'core' Date: Thu, 27 Jan 2011 10:49:33 +0100 Message-ID: <002c01cbbe07$803449b0$809cdd10$@uni-rostock.de> MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit X-Mailer: Microsoft Outlook 14.0 Thread-Index: Acu+BYUjeme3OeyuRZ2lXAOHnJBsMQ== Content-Language: de Subject: [core] Block for Req and Res X-BeenThere: core@ietf.org X-Mailman-Version: 2.1.9 Precedence: list List-Id: "Constrained RESTful Environments \(CoRE\) Working Group list" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 27 Jan 2011 09:46:17 -0000 I know that there was in consensus in Bejing about that, but I am not completely sure about the interaction of the CoAP core and block protocols. I am still in favor to have a mechanism to allow block for both request and response of e.g. POST. The background: We carry SOAP over CoAP as a new lightweight reliable binding (http://tools.ietf.org/html/draft-moritz-core-soap-over-coap-00). I was thinking about if the messaging layer (aka transaction) of CoAP would make this possible with the existing block-01 draft. Due to the M flag, both endpoints are aware if this was the last block of the request. So the last block responded with an empty ACK (i.e. deferred response). For the block wise response, a new CON is initiated by the origin receiver starting a new "blockwise transfer session". Even if it was not the intention of the existing block draft, I am not sure if it is possible with it. Guido From cabo@tzi.org Thu Jan 27 02:08:17 2011 Return-Path: X-Original-To: core@core3.amsl.com Delivered-To: core@core3.amsl.com Received: from localhost (localhost [127.0.0.1]) by core3.amsl.com (Postfix) with ESMTP id 9835428C131 for ; Thu, 27 Jan 2011 02:08:17 -0800 (PST) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -106.299 X-Spam-Level: X-Spam-Status: No, score=-106.299 tagged_above=-999 required=5 tests=[AWL=-0.050, BAYES_00=-2.599, HELO_EQ_DE=0.35, RCVD_IN_DNSWL_MED=-4, USER_IN_WHITELIST=-100] Received: from mail.ietf.org ([64.170.98.32]) by localhost (core3.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id Wc9RZhDw4KYG for ; Thu, 27 Jan 2011 02:08:17 -0800 (PST) Received: from informatik.uni-bremen.de (mailhost.informatik.uni-bremen.de [IPv6:2001:638:708:30c9::12]) by core3.amsl.com (Postfix) with ESMTP id 87B3F28C13A for ; Thu, 27 Jan 2011 02:08:16 -0800 (PST) X-Virus-Scanned: amavisd-new at informatik.uni-bremen.de Received: from smtp-fb3.informatik.uni-bremen.de (smtp-fb3.informatik.uni-bremen.de [134.102.224.120]) by informatik.uni-bremen.de (8.14.3/8.14.3) with ESMTP id p0RABF1k027598; Thu, 27 Jan 2011 11:11:15 +0100 (CET) Received: from [192.168.10.52] (christoph.dagstuhl.de [192.76.146.51]) (using TLSv1 with cipher AES128-SHA (128/128 bits)) (No client certificate requested) by smtp-fb3.informatik.uni-bremen.de (Postfix) with ESMTPSA id 75CC248D; Thu, 27 Jan 2011 11:11:15 +0100 (CET) Mime-Version: 1.0 (Apple Message framework v1082) Content-Type: text/plain; charset=us-ascii From: Carsten Bormann In-Reply-To: <002c01cbbe07$803449b0$809cdd10$@uni-rostock.de> Date: Thu, 27 Jan 2011 11:11:52 +0100 Content-Transfer-Encoding: quoted-printable Message-Id: <7A6579DC-1CA3-4371-B492-ECDF8838F260@tzi.org> References: <002c01cbbe07$803449b0$809cdd10$@uni-rostock.de> To: Guido Moritz X-Mailer: Apple Mail (2.1082) Cc: 'core' Subject: Re: [core] Block for Req and Res X-BeenThere: core@ietf.org X-Mailman-Version: 2.1.9 Precedence: list List-Id: "Constrained RESTful Environments \(CoRE\) Working Group list" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 27 Jan 2011 10:08:17 -0000 On Jan 27, 2011, at 10:49, Guido Moritz wrote: > a new CON=20 Hmm. Doing this in a deferred response sounds possible, because there = is no ambiguity between the ACK of the last request block and the = response body carrying the first response block. Haven't thought this through though. It is needed? Gruesse, Carsten From prvs=200808F27D=guido.moritz@uni-rostock.de Thu Jan 27 02:18:57 2011 Return-Path: X-Original-To: core@core3.amsl.com Delivered-To: core@core3.amsl.com Received: from localhost (localhost [127.0.0.1]) by core3.amsl.com (Postfix) with ESMTP id 39B7F3A6966 for ; Thu, 27 Jan 2011 02:18:57 -0800 (PST) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -1.966 X-Spam-Level: X-Spam-Status: No, score=-1.966 tagged_above=-999 required=5 tests=[AWL=0.283, BAYES_00=-2.599, DOS_OUTLOOK_TO_MX=1, HELO_EQ_DE=0.35, RCVD_IN_DNSWL_LOW=-1] Received: from mail.ietf.org ([64.170.98.32]) by localhost (core3.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id gXvmtUey76oA for ; Thu, 27 Jan 2011 02:18:56 -0800 (PST) Received: from mailrelay1.uni-rostock.de (mailrelay1.uni-rostock.de [139.30.8.201]) by core3.amsl.com (Postfix) with ESMTP id 345BC3A6961 for ; Thu, 27 Jan 2011 02:18:56 -0800 (PST) From: Guido Moritz To: 'Carsten Bormann' References: <002c01cbbe07$803449b0$809cdd10$@uni-rostock.de> <7A6579DC-1CA3-4371-B492-ECDF8838F260@tzi.org> In-Reply-To: <7A6579DC-1CA3-4371-B492-ECDF8838F260@tzi.org> Date: Thu, 27 Jan 2011 11:22:13 +0100 Message-ID: <002e01cbbe0c$107acf40$31706dc0$@uni-rostock.de> MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable X-Mailer: Microsoft Outlook 14.0 Thread-Index: AQLQ6k+24x1KDx+KkdwtizPi8Fq9eQESL3WdkdGwnaA= Content-Language: de Cc: 'core' Subject: Re: [core] Block for Req and Res X-BeenThere: core@ietf.org X-Mailman-Version: 2.1.9 Precedence: list List-Id: "Constrained RESTful Environments \(CoRE\) Working Group list" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 27 Jan 2011 10:18:57 -0000 > It is needed? I would say yes, but I misuse CoAP for something not necessarily RESTful...so my comment may not have a huge weight ;) Based on the Webex discussion yesterday, in some way it also depends on = the maximum message size defined in the CoAP core. If there is a hard size = limit instead of the existing solution, maybe applications get in trouble? Guido > -----Urspr=FCngliche Nachricht----- > Von: Carsten Bormann [mailto:cabo@tzi.org] > Gesendet: Donnerstag, 27. Januar 2011 11:12 > An: Guido Moritz > Cc: 'core' > Betreff: Re: [core] Block for Req and Res >=20 > On Jan 27, 2011, at 10:49, Guido Moritz wrote: >=20 > > a new CON >=20 > Hmm. Doing this in a deferred response sounds possible, because there = is > no ambiguity between the ACK of the last request block and the = response > body carrying the first response block. > Haven't thought this through though. > It is needed? >=20 > Gruesse, Carsten From salvatore.loreto@ericsson.com Thu Jan 27 09:43:41 2011 Return-Path: X-Original-To: core@core3.amsl.com Delivered-To: core@core3.amsl.com Received: from localhost (localhost [127.0.0.1]) by core3.amsl.com (Postfix) with ESMTP id 407113A69B2 for ; Thu, 27 Jan 2011 09:43:41 -0800 (PST) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -106.555 X-Spam-Level: X-Spam-Status: No, score=-106.555 tagged_above=-999 required=5 tests=[AWL=0.044, BAYES_00=-2.599, RCVD_IN_DNSWL_MED=-4, USER_IN_WHITELIST=-100] Received: from mail.ietf.org ([64.170.98.32]) by localhost (core3.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id CIKQf6VYInVa for ; Thu, 27 Jan 2011 09:43:40 -0800 (PST) Received: from mailgw9.se.ericsson.net (mailgw9.se.ericsson.net [193.180.251.57]) by core3.amsl.com (Postfix) with ESMTP id E94803A69A1 for ; Thu, 27 Jan 2011 09:43:39 -0800 (PST) X-AuditID: c1b4fb39-b7cfbae000005c8e-d4-4d41af82a22c Received: from esessmw0184.eemea.ericsson.se (Unknown_Domain [153.88.253.125]) by mailgw9.se.ericsson.net (Symantec Mail Security) with SMTP id A7.3B.23694.28FA14D4; Thu, 27 Jan 2011 18:46:43 +0100 (CET) Received: from mail.lmf.ericsson.se (153.88.115.8) by esessmw0184.eemea.ericsson.se (153.88.115.82) with Microsoft SMTP Server id 8.2.234.1; Thu, 27 Jan 2011 18:46:42 +0100 Received: from nomadiclab.lmf.ericsson.se (nomadiclab.lmf.ericsson.se [131.160.33.3]) by mail.lmf.ericsson.se (Postfix) with ESMTP id 9439B2356; Thu, 27 Jan 2011 19:46:42 +0200 (EET) Received: from nomadiclab.lmf.ericsson.se (localhost [127.0.0.1]) by nomadiclab.lmf.ericsson.se (Postfix) with ESMTP id 4A5BD506AB; Thu, 27 Jan 2011 19:46:42 +0200 (EET) Received: from Salvatore-Loretos-MacBook-Pro.local (localhost [127.0.0.1]) by nomadiclab.lmf.ericsson.se (Postfix) with ESMTP id 628DA50453; Thu, 27 Jan 2011 19:46:41 +0200 (EET) Message-ID: <4D41AF80.7010601@ericsson.com> Date: Thu, 27 Jan 2011 18:46:40 +0100 From: Salvatore Loreto User-Agent: Mozilla/5.0 (Macintosh; U; Intel Mac OS X 10.6; en-US; rv:1.9.2.13) Gecko/20101207 Thunderbird/3.1.7 MIME-Version: 1.0 To: Carsten Bormann References: <8F9FDD45-0F2F-4AB4-887A-F8CED9320005@cisco.com> <4D405C45.9060001@ericsson.com> In-Reply-To: Content-Type: text/plain; charset="ISO-8859-1"; format=flowed Content-Transfer-Encoding: 7bit X-Virus-Scanned: ClamAV using ClamSMTP X-Brightmail-Tracker: AAAAAA== Cc: "core@ietf.org" Subject: Re: [core] CoAP-04 or CoAP-HTTP Mapping for addressing difference between HTTP and CoAP X-BeenThere: core@ietf.org X-Mailman-Version: 2.1.9 Precedence: list List-Id: "Constrained RESTful Environments \(CoRE\) Working Group list" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 27 Jan 2011 17:43:41 -0000 On 1/26/11 7:26 PM, Carsten Bormann wrote: > On Jan 26, 2011, at 18:39, Salvatore Loreto wrote (about stateless proxies): > >> I think there are some issues in mapping CoAP deferred response to HTTP > There is no difference here between immediate and deferred -- in both cases, an HTTP-to-CoAP proxy has to keep state until the response comes in. > That state is just a little less in the deferred case (there is no message layer state to keep track of most of the time we are waiting for the response). the issues are in the HTTP behavior, assume the HTTP GET is translate to a CoAP GET, and the CoAP answer is deferred if the CoAP message defer time is quite large once it arrives the probability that some timeout expired in some HTTP proxies or other intermediary boxes (NAT, Firewall) is quite high so the Proxy won't be able to deliver the answer to the HTTP client most likely the HTTP client will, after some time, issue a new GET to retrieve the value, so what will be the correct proxy behavior in this scenario? maybe for GET a [more or less limited] cache could help, as you suggest... alternative could be sent a Retry-After header in the HTTP response within a safe interval time (e.g. an interval time before the timeout expires) things can became more complicate if the request is not idempotent and the HTTP client retransmit > "Stateless" here refers to the lack of need to keep hard state *between* exchanges. > (You might still want to keep a [more or less limited] cache, which is almost always going to be a good idea for this kind of intermediary.) can you expand on what you mean to be an hard state *between* exchanges. I think a better explanation is also necessary in the coap draft. /Sal -- Salvatore Loreto www.sloreto.com From gc355804@ohio.edu Thu Jan 27 22:20:23 2011 Return-Path: X-Original-To: core@core3.amsl.com Delivered-To: core@core3.amsl.com Received: from localhost (localhost [127.0.0.1]) by core3.amsl.com (Postfix) with ESMTP id 95A4E3A6A8C for ; Thu, 27 Jan 2011 22:20:22 -0800 (PST) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -2.599 X-Spam-Level: X-Spam-Status: No, score=-2.599 tagged_above=-999 required=5 tests=[BAYES_00=-2.599] Received: from mail.ietf.org ([64.170.98.32]) by localhost (core3.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id 92jkmiTQKtIi for ; Thu, 27 Jan 2011 22:20:20 -0800 (PST) Received: from mx4.oit.ohio.edu (mx4.oit.ohio.edu [132.235.250.54]) by core3.amsl.com (Postfix) with ESMTP id 61C8D28C0D0 for ; Thu, 27 Jan 2011 22:20:19 -0800 (PST) X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: AvsEAJPvQU2E6who/2dsb2JhbAClAHOyXohpgniCVwSFF4cP X-IronPort-AV: E=Sophos;i="4.60,390,1291611600"; d="scan'208";a="66805693" Received: from exht1.oit.ohio.edu ([132.235.8.104]) by smtpout4.oit.ohio.edu with ESMTP; 28 Jan 2011 01:23:24 -0500 Received: from exmail1.ohio.edu ([10.13.10.1]) by exht1.oit.ohio.edu ([10.13.10.31]) with mapi; Fri, 28 Jan 2011 01:23:23 -0500 From: "Clark, Gilbert" To: core Date: Fri, 28 Jan 2011 01:23:22 -0500 Thread-Topic: thoughts on ticket #60 (proxy cache + access controls) Thread-Index: Acu+BYUjeme3OeyuRZ2lXAOHnJBsMQArld7P Message-ID: In-Reply-To: <002c01cbbe07$803449b0$809cdd10$@uni-rostock.de> Accept-Language: en-US Content-Language: en X-MS-Has-Attach: X-MS-TNEF-Correlator: acceptlanguage: en-US Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 Subject: [core] thoughts on ticket #60 (proxy cache + access controls) X-BeenThere: core@ietf.org X-Mailman-Version: 2.1.9 Precedence: list List-Id: "Constrained RESTful Environments \(CoRE\) Working Group list" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 28 Jan 2011 06:20:23 -0000 Hi: I noticed ticket #60 (Access control and proxy caches) was listed as being better off described as an extension, so thought I'd throw out a tentative idea. If it seems workable, then I can write it up as a draft; if not, the= n maybe something will be useful to somebody else. To define a proxy's behavior, a given node publishes a resource (either in binary or plaintext form) that is used to inform interested proxies what they can do with the node's content. Note that the proxy would need to verify the node's identity when the resource was retrieved, or spoofed ACLs could be a problem. Additionally, securing access to this resource somehow (require SharedKey?) would be highly recommended. In any case, I'd imagine the resource itself could be pretty simple; perhap= s something like: " ACL_VERSION Allow/deny OPERATION for RESOURCE from SOURCE " where: ACL_VERSION =3D 1 OPERATION =3D "GET", "PUT", "OBSERVE", * RESOURCE =3D "/path/to/resource" (with an optional wildcard) SOURCE =3D "trusted", "local", "external", IPv6 address + mask, * and the rules would be applied in order of their definition. "external" / "trusted" / "local" would be keywords that would apply to the external network (beyond the proxy), trusted network (SharedKey / MultiKey / Certificate / pre-arranged IP address from the node's perspective), and the local network (local CoAP network). In place of those keywords, an IPv6 address + mask or a wildcard character could be used. For example: " CoAP ACL version 1 allow * for coap://mynode/* from trusted allow * for coap://mynode/* from local allow GET for coap://mynode/* from external deny * for * from * " The proxy could either poll or observe this resource for nodes it was servicing, and use it to restrict traffic destined for various CoAP nodes. The existence of this resource would be provided as a way to specify *only* what the proxy should do with the node's content (e.g. It wouldn't say anything about what the node's access controls were). If neither the plaintext nor the binary version of this resource were to not exist, the proxy would assume the equivalent of "allow * for * from *". Perhaps cache information could be additionally specified in this resource as: " cache a/specific/resource TIMEOUT " Per-host access control lists / cache rules could optionally be specified o= n the proxy, with the caveat that resolving conflicts between a proxy that said one thing and a node that said another could be interesting. Additionally, upon notification of an updated rule set, the cache entries for all entries the previous rule set affected would be flushed on the proxy. All rules would be applied to inbound HTTP --> CoAP traffic at the proxy. Tangent: for protocols other than HTTP, a mechanism could be defined to map required information into CoAP URIs (for example, SNMPv1 / v2c might be mapped to an snmp/community_string/o/i/d resource, with each individual SNM= P transaction broken down into a relevant series of CoAP commands or somethin= g that all had to complete successfully for the operation to succeed). --Gilbert Clark From peter.van.der.stok@philips.com Fri Jan 28 00:25:52 2011 Return-Path: X-Original-To: core@core3.amsl.com Delivered-To: core@core3.amsl.com Received: from localhost (localhost [127.0.0.1]) by core3.amsl.com (Postfix) with ESMTP id 6C8D93A6AAA; Fri, 28 Jan 2011 00:25:52 -0800 (PST) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -5.999 X-Spam-Level: X-Spam-Status: No, score=-5.999 tagged_above=-999 required=5 tests=[AWL=-0.600, BAYES_00=-2.599, J_CHICKENPOX_32=0.6, J_CHICKENPOX_34=0.6, RCVD_IN_DNSWL_MED=-4] Received: from mail.ietf.org ([64.170.98.32]) by localhost (core3.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id xMZNoSom9I7O; Fri, 28 Jan 2011 00:25:50 -0800 (PST) Received: from TX2EHSOBE005.bigfish.com (tx2ehsobe003.messaging.microsoft.com [65.55.88.13]) by core3.amsl.com (Postfix) with ESMTP id 95B493A6B98; Fri, 28 Jan 2011 00:25:47 -0800 (PST) Received: from mail125-tx2-R.bigfish.com (10.9.14.246) by TX2EHSOBE005.bigfish.com (10.9.40.25) with Microsoft SMTP Server id 14.1.225.8; Fri, 28 Jan 2011 08:28:53 +0000 Received: from mail125-tx2 (localhost.localdomain [127.0.0.1]) by mail125-tx2-R.bigfish.com (Postfix) with ESMTP id 35A60940711; Fri, 28 Jan 2011 08:28:53 +0000 (UTC) X-SpamScore: -61 X-BigFish: VPS-61(zz15d6O9251J542N1432N1453M98dN217bL9371P853kzz1202hzz8275bh8275dh8275ch1033ILz2dh2a8h668h61h) X-Spam-TCS-SCL: 0:0 X-Forefront-Antispam-Report: KIP:(null); UIP:(null); IPVD:NLI; H:NLAMSEXE03.connect1.local; RD:smtpx.philips.com; EFVD:NLI Received: from mail125-tx2 (localhost.localdomain [127.0.0.1]) by mail125-tx2 (MessageSwitch) id 1296203332624190_13027; Fri, 28 Jan 2011 08:28:52 +0000 (UTC) Received: from TX2EHSMHS044.bigfish.com (unknown [10.9.14.246]) by mail125-tx2.bigfish.com (Postfix) with ESMTP id 8AE725E804E; Fri, 28 Jan 2011 08:28:52 +0000 (UTC) Received: from NLAMSEXE03.connect1.local (168.87.56.20) by TX2EHSMHS044.bigfish.com (10.9.99.144) with Microsoft SMTP Server (TLS) id 14.1.225.8; Fri, 28 Jan 2011 08:28:52 +0000 Received: from nlamsexh01.connect1.local (172.16.153.11) by connect1.philips.com (172.16.156.42) with Microsoft SMTP Server (TLS) id 8.3.106.1; Fri, 28 Jan 2011 09:28:19 +0100 Received: from NLCLUEXM03.connect1.local ([172.16.157.42]) by nlamsexh01.connect1.local ([172.16.153.11]) with mapi; Fri, 28 Jan 2011 09:28:28 +0100 From: "Stok, Peter van der" To: Zach Shelby , "matthieu.vial@fr.non.schneider-electric.com" Date: Fri, 28 Jan 2011 09:28:25 +0100 Thread-Topic: [core] link hierarchies and RFC 5785 Thread-Index: Acu+BX4B6dUfsnRsSnmCIoKJMcSACQAvHNAQ Message-ID: References: <8323B114-5CC2-4D35-BE86-4285346D2187@sensinode.com> In-Reply-To: <8323B114-5CC2-4D35-BE86-4285346D2187@sensinode.com> Accept-Language: en-US, nl-NL Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: acceptlanguage: en-US, nl-NL Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 X-OriginatorOrg: philips.com Cc: "core-bounces@ietf.org" , core WG Subject: Re: [core] link hierarchies and RFC 5785 X-BeenThere: core@ietf.org X-Mailman-Version: 2.1.9 Precedence: list List-Id: "Constrained RESTful Environments \(CoRE\) Working Group list" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 28 Jan 2011 08:25:52 -0000 Dear all, The recent discussion on /.well-known/core creates a new point of view with= respect to the handling of standards which describe the representations of= the services and devices delivered by a CoAP host. If I understand correctly /.well-known/core returns ALL resources of the ho= st and nothing more, and cannot be used to reserve other names in a hierarc= hical fashion hanging on /well-known/core. My personal wish is that CoAP can be used to transport service and device r= epresentations which are specified by existing and possibly future standard= ization bodies or alliances. To support interoperability naming conventions should adhere to the same sy= ntax and conventions, and I quite agree that these conventions are the resp= onsibility of the organization describing them. I also can imagine that such an organization specifies how this is handled = in the name space of a CoAP host. However, too much freedom may give proble= ms between different standardization bodies, assuming that more than one st= andard will be present. So I like to encourage that the CoAP draft says something about how these d= ifferent representation standards can be recognized to be present on the ho= st. Some suggestions are (given that XXX stands for BACnet, KNX, ZigBee, DALI, = oBIX, etc....): A path for a given standard is preceded by /representation/XXX/name Or is preceded by /XXX/name (is shorter) Or is given by /name but with d=3D"XXX" as link extension to be returned by= resource query. I have no preference for any syntax, as long as there is a recommendation i= n the CoAP draft on how to introduce the representation type. All these suggestions do not reserve any mnemonics, so no involvement by IA= NA. This may lead to name clashes, but I have no idea how likely that is. A= nyone has a better suggestion while at the same time maintaining the possib= ility to reserve mnemonics? Peter van der Stok -----Original Message----- From: core-bounces@ietf.org [mailto:core-bounces@ietf.org] On Behalf Of Zac= h Shelby Sent: Thursday 27 January 2011 10:35 To: matthieu.vial@fr.non.schneider-electric.com Cc: core WG; core-bounces@ietf.org Subject: Re: [core] link hierarchies and RFC 5785 Hi, On Jan 27, 2011, at 11:03 AM, matthieu.vial@fr.non.schneider-electric.com w= rote: > >> PS.: By the way, maybe we should define a file extension for >> link-format > resources. >> (And having a common expectation on how something like this is named, > such as we expect to find an index.html on many HTTP servers that > serve HTML, >is helpful for debugging.) > > I don't understand why you need a sort of implicit name. Why not let > the server explicitly name the index resource in /.well-known/core? > What option from the following ones do you have in mind? Personally I > like 3). Sure, 2 and 3 would both be legal and really up to the server. You can name= your index fcn.lk or fcn.link if you like. I agree that /.well-known/core = is the right entry point. 1 is broken because /fcn/idx.lk is not listed in = the link list. > 1) > REQ: GET /.well-known/core > RES: 200 OK > ;n=3D"GPS position", > ;rel=3D"index";n=3D"Geofence list";ct=3D40, > ;rel=3D"index";n=3D"Pending alarms";ct=3D40;obs, > > REQ: GET /fnc/idx.lk > RES: 200 OK > ;ct=3D41, > ;ct=3D41;sz=3D200, > > 2) > REQ: GET /.well-known/core > RES: 200 OK > ;n=3D"GPS position", > ;rel=3D"index";n=3D"Geofence list";ct=3D40, > ;rel=3D"index";n=3D"Pending alarms";ct=3D40;obs, > > REQ: GET /fnc/idx.lk > RES: 200 OK > ;ct=3D41, > ;ct=3D41;sz=3D200, > > 3) > REQ: GET /.well-known/core > RES: 200 OK > ;n=3D"GPS position", > ;rel=3D"index";n=3D"Geofence list";ct=3D40, > ;rel=3D"index";n=3D"Pending alarms";ct=3D40;obs, > > REQ: GET /fnc > RES: 200 OK > ;ct=3D41, > ;ct=3D41;sz=3D200, > > 4) > REQ: GET /idx.lk > RES: 200 OK > ;n=3D"GPS position", > ;rel=3D"index";n=3D"Geofence list";ct=3D40, > ;rel=3D"index";n=3D"Pending alarms";ct=3D40;obs, > > REQ: GET /fnc > RES: 200 OK > ;ct=3D41, > ;ct=3D41;sz=3D200, > > > Last question. How to structure a discovery repository without a > /.well-known/core hierarchy? > 1) A device can POST directly on /.well-known/core and the repository > creates a new resource but not under /.well-known/core. > 2) Or the device must start with a GET on /.well-known/core to learn > the entry point of the repository service and then send a POST on that > resource? That is an issue that bothers me too. I would probably do 1) in order to av= oid forcing nodes to first discover where the directory entry point is. Or = a resource directory could register its own well-known URI e.g. "/.well-kno= wn/core-rd". Zach > > Matthieu > _______________________________________________ > core mailing list > core@ietf.org > https://www.ietf.org/mailman/listinfo/core -- Zach Shelby, Chief Nerd, Sensinode Ltd. http://zachshelby.org - My blog "On the Internet of Things" http://6lowpan.net - My book "6LoWPAN: The Wireless Embedded Internet" Mobile: +358 40 7796297 The information contained in this message may be confidential and legally p= rotected under applicable law. The message is intended solely for the addre= ssee(s). If you are not the intended recipient, you are hereby notified tha= t any use, forwarding, dissemination, or reproduction of this message is st= rictly prohibited and may be unlawful. If you are not the intended recipien= t, please contact the sender by return e-mail and destroy all copies of the= original message. From lars.eggert@nokia.com Fri Jan 28 02:55:29 2011 Return-Path: X-Original-To: core@core3.amsl.com Delivered-To: core@core3.amsl.com Received: from localhost (localhost [127.0.0.1]) by core3.amsl.com (Postfix) with ESMTP id 319893A6767 for ; Fri, 28 Jan 2011 02:55:27 -0800 (PST) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -103.332 X-Spam-Level: X-Spam-Status: No, score=-103.332 tagged_above=-999 required=5 tests=[AWL=-0.733, BAYES_00=-2.599, USER_IN_WHITELIST=-100] Received: from mail.ietf.org ([64.170.98.32]) by localhost (core3.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id onCO3Lt+cD4G for ; Fri, 28 Jan 2011 02:55:18 -0800 (PST) Received: from mgw-da02.nokia.com (smtp.nokia.com [147.243.128.26]) by core3.amsl.com (Postfix) with ESMTP id D4FC93A63D2 for ; Fri, 28 Jan 2011 02:55:11 -0800 (PST) Received: from mail.fit.nokia.com (esdhcp030222.research.nokia.com [172.21.30.222]) by mgw-da02.nokia.com (Switch-3.4.3/Switch-3.4.3) with ESMTP id p0SAwEvR004630 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=NO) for ; Fri, 28 Jan 2011 12:58:15 +0200 From: Lars Eggert X-Virus-Status: Clean X-Virus-Scanned: clamav-milter 0.96.5 at fit.nokia.com Content-Type: multipart/signed; boundary=Apple-Mail-12-77507060; protocol="application/pkcs7-signature"; micalg=sha1 Date: Fri, 28 Jan 2011 12:58:06 +0200 Message-Id: <67F8F57A-962F-47BD-8F39-416D1305F3EE@nokia.com> To: core@ietf.org Mime-Version: 1.0 (Apple Message framework v1082) X-Mailer: Apple Mail (2.1082) X-Greylist: Sender succeeded SMTP AUTH, not delayed by milter-greylist-4.2.6 (mail.fit.nokia.com); Fri, 28 Jan 2011 12:58:12 +0200 (EET) X-Nokia-AV: Clean Subject: [core] draft-eggert-core-congestion-control-01 X-BeenThere: core@ietf.org X-Mailman-Version: 2.1.9 Precedence: list List-Id: "Constrained RESTful Environments \(CoRE\) Working Group list" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 28 Jan 2011 10:55:30 -0000 --Apple-Mail-12-77507060 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset=us-ascii Hi,=20 I posted a modest -01 revision of draft-eggert-core-congestion-control = that clarifies a few things and fixes a few nits that were present in = -00. When I talked about -00 in Anaheim, a few folks indicated an interest to = experiment with some of these ideas in their experimental testbeds. I'd = be interested to hear if any of this has happened as of yet? http://tools.ietf.org/html/draft-eggert-core-congestion-control Lars= --Apple-Mail-12-77507060 Content-Disposition: attachment; filename=smime.p7s Content-Type: application/pkcs7-signature; name=smime.p7s Content-Transfer-Encoding: base64 MIAGCSqGSIb3DQEHAqCAMIACAQExCzAJBgUrDgMCGgUAMIAGCSqGSIb3DQEHAQAAoIIMRjCCBVAw ggQ4oAMCAQICEGxdPUZzCwUJ8KBiJwH+bYgwDQYJKoZIhvcNAQEFBQAwgd0xCzAJBgNVBAYTAlVT MRcwFQYDVQQKEw5WZXJpU2lnbiwgSW5jLjEfMB0GA1UECxMWVmVyaVNpZ24gVHJ1c3QgTmV0d29y azE7MDkGA1UECxMyVGVybXMgb2YgdXNlIGF0IGh0dHBzOi8vd3d3LnZlcmlzaWduLmNvbS9ycGEg KGMpMDkxHjAcBgNVBAsTFVBlcnNvbmEgTm90IFZhbGlkYXRlZDE3MDUGA1UEAxMuVmVyaVNpZ24g Q2xhc3MgMSBJbmRpdmlkdWFsIFN1YnNjcmliZXIgQ0EgLSBHMzAeFw0xMDEwMTUwMDAwMDBaFw0x MTEwMTUyMzU5NTlaMIIBEzEXMBUGA1UEChMOVmVyaVNpZ24sIEluYy4xHzAdBgNVBAsTFlZlcmlT aWduIFRydXN0IE5ldHdvcmsxRjBEBgNVBAsTPXd3dy52ZXJpc2lnbi5jb20vcmVwb3NpdG9yeS9S UEEgSW5jb3JwLiBieSBSZWYuLExJQUIuTFREKGMpOTgxHjAcBgNVBAsTFVBlcnNvbmEgTm90IFZh 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[209.85.216.172]) by core3.amsl.com (Postfix) with ESMTP id 93A7C3A6882 for ; Fri, 28 Jan 2011 07:46:36 -0800 (PST) Received: by qyk34 with SMTP id 34so965711qyk.10 for ; Fri, 28 Jan 2011 07:49:42 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma; h=domainkey-signature:mime-version:sender:in-reply-to:references:from :date:x-google-sender-auth:message-id:subject:to:cc:content-type :content-transfer-encoding; bh=QnHDTCf6MMeLS+g39xxuO2+QDM6fmpWigrxgVi2CBcE=; b=FfnLLSEi3IyhsK7Zu/W8J+dEPfj70Rt80V/AJ62Pb/qLYf7dvFNufpkVew5EcTxCMU q0Hd9/GpZ9D/aTgpC6gk5SGmVNZY5qYCPLE+0GmKO8Yf4pPc8YS1QqPdJ8IZSqq45hvq mZlVkkf/srpXhf2NDxzYRln3CzX2flKiG/k/4= DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=mime-version:sender:in-reply-to:references:from:date :x-google-sender-auth:message-id:subject:to:cc:content-type :content-transfer-encoding; b=sTbj7ICk14b3stCM9BJNMZA+oMe1QopuehtIZ7qjSTKdnc2p3FUihPAR+8iyrnzF6S mpw/1cNSVwffvQD2RCL7fuuTd0afZAx+Ybgl15/FvqNonB0bHjwVZywXx/eBU0TMD9bp 9Nu0bFfFlQ6dlzc4UbX9XtqC3ah5qOHtFKQQA= Received: by 10.229.230.17 with SMTP id jk17mr2830873qcb.184.1296229782772; Fri, 28 Jan 2011 07:49:42 -0800 (PST) MIME-Version: 1.0 Sender: angelo.castellani@gmail.com Received: by 10.229.218.69 with HTTP; Fri, 28 Jan 2011 07:49:22 -0800 (PST) In-Reply-To: References: <8F9FDD45-0F2F-4AB4-887A-F8CED9320005@cisco.com> From: "Angelo P. Castellani" Date: Fri, 28 Jan 2011 16:49:22 +0100 X-Google-Sender-Auth: AXYwHlC6bFVn2KUXZItx2b0-FA8 Message-ID: To: tianlinyi 00175029 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: quoted-printable Cc: Nicola Bui , Michele Zorzi , core WG Subject: Re: [core] CoAP-04 or CoAP-HTTP Mapping for addressing difference between HTTP and CoAP X-BeenThere: core@ietf.org X-Mailman-Version: 2.1.9 Precedence: list List-Id: "Constrained RESTful Environments \(CoRE\) Working Group list" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 28 Jan 2011 15:46:37 -0000 Given the current design of CoAP and its differences from HTTP, mapping is not straightforward. If we want to keep the current CoAP design, in my opinion, the HTTP mapping should be discussed extensively in a different document focused on the topic. The mapping document should be kept updated with the CoAP specification, to highlight any possible HTTP mapping issue. A more detailed version of my opinion follows: ################################ Section 8 of CoAP-04 addresses the basic assumptions required for HTTP mapp= ing. The draft says: "CoAP supports a limited subset of HTTP functionality, and thus a mapping to HTTP is straightforward." In my opinion, the mapping would have been straightforward only if HTTP compatibility and mapping has been kept as primary requirement in the CoAP design. The WG itself has always told that this should be the approach. However, in Section 8.1 and 8.2, the notes describe several differences that are leading the mapping to be quite harder than straightforward. Example: In CoAP-04 was widely introduced the concept that each method can receive a subset of response codes, see Sections 5.8 and 5.9. HTTP agents (servers & clients) does not comply to this specs. This simple difference between CoAP and HTTP will require the proxy to keep track of the request method to identify the more suitable HTTP status code "matching" the received CoAP response code and vice versa, thus adding more complexity and state to the proxy itself. In my opinion CoAP draft has mainly focus on the basic definition of a RESTful protocol suitable for contrained devices, believing that HTTP mapping will always be achieved through a more powerful device (proxy/gateway). This assumption has now lead to a protocol quite different from HTTP, and its mapping is quite hard as draft-castellani-core-http-coap-mapping-00 has started discussing. For this reason I think that right now we have two different options: A) CoAP design can be reverted to be more similar to HTTP, thus requiring less effort in defining the HTTP mapping. B) CoAP design can continue to identify the best REST protocol for a contrained environment, leaving the mapping specification to an extended document specifically focused on HTTP (and maybe other protocols as briefly discussed on the list, e.g. XMPP). Given the work devoted to the current CoAP definition, I prefer option B and probably our draft (draft-castellani-core-http-coap-mapping-00) can be extended by the working group to address all the mapping issues between HTTP and CoAP. If we believe in this path, I hope that the parallel definition of the mapping will outline possible troubles, and drive the current CoAP protocol specification to be surely lightweight but also hopefully mappable to the traditional HTTP-based Internet through a transparent proxy, easy to deploy and that does not require any knowledge about the constrained WPAN. Best, Angelo 2011/1/26 tianlinyi 00175029 : > Hi, CoAP Folks > > Peter raised a review comment as follows: > =A0Be clear about how different HTTP and COAP methods are. > > I think it would be good to address this issue in HTTP-COAP mapping draft= . By doing this we can clarify the difference between HTTP and CoAP not onl= y for those methods but also other features. This can also avoid the comple= xity of CoAP draft. The CoAP draft itself will mainly focus on how CoAP pro= tocol works. > > Cheers, > Linyi > > _______________________________________________ > core mailing list > core@ietf.org > https://www.ietf.org/mailman/listinfo/core > > From paduffy@cisco.com Fri Jan 28 08:48:21 2011 Return-Path: X-Original-To: core@core3.amsl.com Delivered-To: core@core3.amsl.com Received: from localhost (localhost [127.0.0.1]) by core3.amsl.com (Postfix) with ESMTP id 889543A67C1; Fri, 28 Jan 2011 08:48:21 -0800 (PST) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -10.599 X-Spam-Level: X-Spam-Status: No, score=-10.599 tagged_above=-999 required=5 tests=[BAYES_00=-2.599, RCVD_IN_DNSWL_HI=-8] Received: from mail.ietf.org ([64.170.98.32]) by localhost (core3.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id RFRqX8jF0T0O; Fri, 28 Jan 2011 08:48:20 -0800 (PST) Received: from rtp-iport-1.cisco.com (rtp-iport-1.cisco.com [64.102.122.148]) by core3.amsl.com (Postfix) with ESMTP id 89A4A3A67B0; Fri, 28 Jan 2011 08:48:20 -0800 (PST) Authentication-Results: rtp-iport-1.cisco.com; dkim=neutral (message not signed) header.i=none X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: AvsEAMOCQk1AZnwM/2dsb2JhbAClAHOfe4JXDgGYaoVPBIUYhw+DRA Received: from rtp-core-1.cisco.com ([64.102.124.12]) by rtp-iport-1.cisco.com with ESMTP; 28 Jan 2011 16:51:27 +0000 Received: from [161.44.65.115] ([161.44.65.115]) by rtp-core-1.cisco.com (8.13.8/8.14.3) with ESMTP id p0SGpQJY000956; Fri, 28 Jan 2011 16:51:26 GMT Message-ID: <4D42F40E.6030908@cisco.com> Date: Fri, 28 Jan 2011 11:51:26 -0500 From: Paul Duffy Organization: Cisco Systems User-Agent: Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.9.2.13) Gecko/20101207 Thunderbird/3.1.7 MIME-Version: 1.0 To: "Stok, Peter van der" References: <8323B114-5CC2-4D35-BE86-4285346D2187@sensinode.com> In-Reply-To: Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Cc: core WG , "core-bounces@ietf.org" Subject: Re: [core] link hierarchies and RFC 5785 X-BeenThere: core@ietf.org X-Mailman-Version: 2.1.9 Precedence: list Reply-To: paduffy@cisco.com List-Id: "Constrained RESTful Environments \(CoRE\) Working Group list" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 28 Jan 2011 16:48:21 -0000 Would IANA assigned Private Enterprise Numbers suffice? On 1/28/2011 3:28 AM, Stok, Peter van der wrote: > ... > > Some suggestions are (given that XXX stands for BACnet, KNX, ZigBee, DALI, oBIX, etc....): > A path for a given standard is preceded by /representation/XXX/name > Or is preceded by /XXX/name (is shorter) > Or is given by /name but with d="XXX" as link extension to be returned by resource query. > > I have no preference for any syntax, as long as there is a recommendation in the CoAP draft on how to introduce the representation type. > > All these suggestions do not reserve any mnemonics, so no involvement by IANA. This may lead to name clashes, but I have no idea how likely that is. Anyone has a better suggestion while at the same time maintaining the possibility to reserve mnemonics? > From salvatore.loreto@ericsson.com Fri Jan 28 09:28:49 2011 Return-Path: X-Original-To: core@core3.amsl.com Delivered-To: core@core3.amsl.com Received: from localhost (localhost [127.0.0.1]) by core3.amsl.com (Postfix) with ESMTP id 2B9923A6901 for ; Fri, 28 Jan 2011 09:28:49 -0800 (PST) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -106.556 X-Spam-Level: X-Spam-Status: No, score=-106.556 tagged_above=-999 required=5 tests=[AWL=0.042, BAYES_00=-2.599, HTML_MESSAGE=0.001, RCVD_IN_DNSWL_MED=-4, USER_IN_WHITELIST=-100] Received: from mail.ietf.org ([64.170.98.32]) by localhost (core3.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id uL-gn1gIPKRm for ; Fri, 28 Jan 2011 09:28:48 -0800 (PST) Received: from mailgw10.se.ericsson.net (mailgw10.se.ericsson.net [193.180.251.61]) by core3.amsl.com (Postfix) with ESMTP id 6F52D3A68FA for ; Fri, 28 Jan 2011 09:28:47 -0800 (PST) X-AuditID: c1b4fb3d-b7b89ae0000036a3-de-4d42fd896daf Received: from esessmw0197.eemea.ericsson.se (Unknown_Domain [153.88.253.125]) by mailgw10.se.ericsson.net (Symantec Mail Security) with SMTP id A3.7F.13987.98DF24D4; Fri, 28 Jan 2011 18:31:53 +0100 (CET) Received: from mail.lmf.ericsson.se (153.88.115.8) by esessmw0197.eemea.ericsson.se (153.88.115.88) with Microsoft SMTP Server id 8.2.234.1; Fri, 28 Jan 2011 18:31:53 +0100 Received: from nomadiclab.lmf.ericsson.se (nomadiclab.lmf.ericsson.se [131.160.33.3]) by mail.lmf.ericsson.se (Postfix) with ESMTP id A605425CD for ; Fri, 28 Jan 2011 19:31:52 +0200 (EET) Received: from nomadiclab.lmf.ericsson.se (localhost [127.0.0.1]) by nomadiclab.lmf.ericsson.se (Postfix) with ESMTP id 6D67E506DC for ; Fri, 28 Jan 2011 19:31:52 +0200 (EET) Received: from Salvatore-Loretos-MacBook-Pro.local (localhost [127.0.0.1]) by nomadiclab.lmf.ericsson.se (Postfix) with ESMTP id EBCCB506D0 for ; Fri, 28 Jan 2011 19:31:51 +0200 (EET) Message-ID: <4D42FD87.3070701@ericsson.com> Date: Fri, 28 Jan 2011 18:31:51 +0100 From: Salvatore Loreto User-Agent: Mozilla/5.0 (Macintosh; U; Intel Mac OS X 10.6; en-US; rv:1.9.2.13) Gecko/20101207 Thunderbird/3.1.7 MIME-Version: 1.0 To: "core@ietf.org" Content-Type: multipart/alternative; boundary="------------040005040208060701030709" X-Virus-Scanned: ClamAV using ClamSMTP X-Brightmail-Tracker: AAAAAA== Subject: [core] coap-04 POST related issues X-BeenThere: core@ietf.org X-Mailman-Version: 2.1.9 Precedence: list List-Id: "Constrained RESTful Environments \(CoRE\) Working Group list" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 28 Jan 2011 17:28:49 -0000 --------------040005040208060701030709 Content-Type: text/plain; charset="ISO-8859-1"; format=flowed Content-Transfer-Encoding: 7bit 1) CoAP POST is neither safe nor idempotent, but the answer to a CoAP POST request both CON and NON can be deferred. So it is not clear in the spec if the CoAP client that receives an empty ACK to a CON CoAP POST can or cannot issue a second CoAP POST as there is no warranty about the order how the two requests will be served. (the Message-ID is not mandate to be sequentially incremental) 2) 200 OK should be allowed for CoAP POST 3) HTTP to CoaP mapping: -------------------- - HTTP POST is straightforward translated in CoAP POST - however the CoAP response to POST at moment can be deferred and the defer can lead at the expiration of some timeout in the HTTP side so that the actual POST answer it will never delivered to the HTTP client - that will lead to the undefined situation where the CoAP POST is performed on the CoAP sensor, the HTTP/CoAP proxy at some point in time will receive the answer but the HTTP client is not sure about the fact that the action it has been performed neither about the result. It is not clear then how the client will be able to retrieve the answer from the HTTP/CoAP. http://tools.ietf.org/html/draft-ietf-httpbis-p1-messaging-12 in section 7.1.4 states This means that clients, servers, and proxies MUST be able to recover from asynchronous close events. Client software SHOULD reopen the transport connection and retransmit the aborted sequence of requests without user interaction so long as the request sequence is idempotent (see Section 7.1.2 of [Part2 ]). Non-idempotent methods or sequences MUST NOT be automatically retried, although user agents MAY offer a human operator the choice of retrying the request(s). Is not clear what happen in this situation if the HTTP client decide to retry the POST request. The HTTP/CoAP proxy is unable to distinguish whether or not it is a retransmission. cheers /Sal -- Salvatore Loreto www.sloreto.com --------------040005040208060701030709 Content-Type: text/html; charset="ISO-8859-1" Content-Transfer-Encoding: 7bit 1) CoAP POST is neither safe nor idempotent, but the answer to a CoAP POST request both CON and NON
    can be deferred.
    So it is not clear in the spec if the CoAP client that receives an empty ACK to a CON CoAP POST can or cannot issue
    a second CoAP POST as there is no warranty about the order how the two requests will be served.
    (the Message-ID is not mandate to be sequentially incremental)

   
2) 200 OK should be allowed for CoAP POST


3) HTTP to CoaP mapping:
   --------------------

- HTTP POST is straightforward translated in CoAP POST

- however the CoAP response to POST at moment can be deferred
   and the defer can lead at the expiration of some timeout in the HTTP side
   so that the actual POST answer it will never delivered to the HTTP client

- that will lead to the undefined situation where the CoAP POST is performed on the CoAP sensor,
  the HTTP/CoAP proxy at some point in time will receive the answer
   but the HTTP client is not sure about the fact that the action it has been performed neither about the result.

It is not clear then how the client will be able to retrieve the answer from the HTTP/CoAP.
http://tools.ietf.org/html/draft-ietf-httpbis-p1-messaging-12 in section 7.1.4 states
   This means that clients, servers, and proxies MUST be able to recover
   from asynchronous close events.  Client software SHOULD reopen the
   transport connection and retransmit the aborted sequence of requests
   without user interaction so long as the request sequence is
   idempotent (see Section 7.1.2 of [Part2]).  Non-idempotent methods or
   sequences MUST NOT be automatically retried, although user agents MAY
   offer a human operator the choice of retrying the request(s).
Is not clear what happen in this situation if the HTTP client decide to retry the POST request.
The HTTP/CoAP proxy is unable to distinguish whether or not it is a retransmission.

cheers
/Sal
-- 
Salvatore Loreto
www.sloreto.com
--------------040005040208060701030709-- From klaus.hartke@googlemail.com Fri Jan 28 14:11:11 2011 Return-Path: X-Original-To: core@core3.amsl.com Delivered-To: core@core3.amsl.com Received: from localhost (localhost [127.0.0.1]) by core3.amsl.com (Postfix) with ESMTP id 46C9C3A68BD for ; Fri, 28 Jan 2011 14:11:10 -0800 (PST) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -2.52 X-Spam-Level: X-Spam-Status: No, score=-2.52 tagged_above=-999 required=5 tests=[AWL=0.457, BAYES_00=-2.599, FM_FORGED_GMAIL=0.622, RCVD_IN_DNSWL_LOW=-1] Received: from mail.ietf.org ([64.170.98.32]) by localhost (core3.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id 7XA1q-a3bxkL for ; Fri, 28 Jan 2011 14:11:07 -0800 (PST) Received: from mail-bw0-f44.google.com (mail-bw0-f44.google.com [209.85.214.44]) by core3.amsl.com (Postfix) with ESMTP id 7B5C23A689E for ; Fri, 28 Jan 2011 14:11:06 -0800 (PST) Received: by bwz12 with SMTP id 12so4322566bwz.31 for ; Fri, 28 Jan 2011 14:14:13 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=googlemail.com; s=gamma; h=domainkey-signature:mime-version:sender:date:x-google-sender-auth :message-id:subject:from:to:content-type; bh=KYRuhFNPsOtSxlsp7ShCxfQtvI+TFs930HXRENKCRe4=; b=bsZrkq4b+UnZ1WGDBp09jto3xH7eOdfdYcHTRQLsfuywj1OoBoU+mntPPsn4KrHqOM ynCpq+42507UQ9pju96xQBOiwJFO1UhRsEtFsrb6MhejW2wp5TzJeCtBoU6vgM1MRIUU oBWbWZqI87lE9G0uQ85pDvN+KP62cjEU58iao= DomainKey-Signature: a=rsa-sha1; c=nofws; d=googlemail.com; s=gamma; h=mime-version:sender:date:x-google-sender-auth:message-id:subject :from:to:content-type; b=EL0f1f62WNU5R2GtIli2ots9yELtkwZQ6C77JWHZI9QafxjE0JzAXgkYwzf4KbO319 0itDAj26XqAcBhPMD2h6t8JGrlZXfAFApX0pbg/L3ZFVax5yqae3vx9MljbrKc2Rvypc ZCnhveBP6+55t5U50rdaP8tP8YLpi6/ZhW364= MIME-Version: 1.0 Received: by 10.204.77.196 with SMTP id h4mr2915381bkk.89.1296252852816; Fri, 28 Jan 2011 14:14:12 -0800 (PST) Sender: klaus.hartke@googlemail.com Received: by 10.204.141.28 with HTTP; Fri, 28 Jan 2011 14:14:12 -0800 (PST) Date: Fri, 28 Jan 2011 23:14:12 +0100 X-Google-Sender-Auth: nz93_nAHqmtByhlSMijeGpP2OjM Message-ID: From: Klaus Hartke To: core Content-Type: text/plain; charset=ISO-8859-1 Subject: [core] Response codes for POST X-BeenThere: core@ietf.org X-Mailman-Version: 2.1.9 Precedence: list List-Id: "Constrained RESTful Environments \(CoRE\) Working Group list" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 28 Jan 2011 22:11:12 -0000 It has been mentioned in the webex call and on this mailing list that there should be a response code with payload for POST requests. I, too, agree that this would be useful to have. We need to be specific what the properties/semantics of that response code are. Each response code needs to define the following properties: - What methods does the response code apply to. - Is payload required or optional or forbidden. - What is the meaning of the payload (for example, the payload in a successful response to a GET request is a representation of the target resource; the payload in an error response is a human-readable diagnostic message). - What is the format of the payload (for example, the format in a successful response to a GET is indicated by the Content-Type option; the format of the payload in an error response is always Net-Unicode text). - Is the response cacheable (max-age). - Is the response validatable when cached (etag). - Does the response mark stored responses for the request URI as stale. - Does the response mark stored responses for the Location URI become as stale. To summarize coap-04, the success response codes are currently defined as follows: +-------------+-------------------------+---------+---------+------+-------+ | Request | Response | Payload | Max-Age | Etag | Stale | +-------------+-------------------------+---------+---------+------+-------+ | GET | 2.00 OK | x | x | x | - | | GET + Etag | 2.03 Valid | - | updates cache | x | | GET + Etag | 2.00 OK | x | x | x | - | | POST | 2.01 Created | - | - | - | x | | POST | 2.01 Created + Location | - | - | - | x | | POST | 2.04 Changed | - | - | - | x | | PUT | 2.04 Changed | - | - | - | x | | PUT | 2.01 Created | - | - | - | x | | DELETE | 2.02 Deleted | - | - | - | x | +-------------+-------------------------+---------+---------+------+-------+ You'll notice that many of the response codes have the same properties/effects. The reason for this is that coap-04 aims to indicate what happened semantically, rather than define one response for each unique combination of effects. Illustrating example from HTML: text has the effect of making the text be rendered in italics (often used for emphasis) text indicates emphasized text (often rendered in italics), i.e. the semantic meaning I think having the response code indicate what happened semantically is a useful property to have. We should try to keep it. Now on to the response codes for POST. Currently, a 2.00 (OK) response is defined to be cacheable. This makes it unsuitable for POST responses, because we invoke the POST method for its side-effects, not its return value. In the webex call, we agreed that it might make sense to create a new success response code for GET requests (say, 2.05), so 2.00 (OK) can be used to indicate general success. So we have three changes: - Rename 2.00 to, say, 2.05, to be used for GET responses; - Add a new code indicating general success; and - Add a new code for POST responses with payload. (I believe the two new codes will not have the same properties, so I listed them separately.) Here are a couple of questions to get the discussion started. Question 1.) What's a good name for the code used for responses to GET requests? The name "Your request was successful and here's the resource representation you've asked for" is too long :-) Question 2.) What should be the properties of the general success code? Proposal: - Applies to any method - Payload must be ignored by any recipient - Not cacheable or validatable - Does not mark stored responses as stale, except if defined by method - Does not use the Location Option This would define the general success code that is currently missing from coap-04: "However, there is no generic Response Code indicating success, so a Response Code in the Success class that is unrecognized by an end-point can only be used to determine that the request was successful without any further details." Question 3.) What are some good example use-cases for POST responses with payload? The only example given so far is that of merging two resources, which in my opinion is not a good example to motivate POST responses with payload. In that example, a POST takes two URI arguments, merges the two resources into a new resource, and deletes the old resources. What we'd ideally like to say in the response would be this: - The operation was successful - This information is not cacheable - The old resource #1 was deleted; any stored response for that URI should be marked as stale - The old resource #2 was deleted; any stored response for that URI should be marked as stale - A new resource was created at Location #3; any stored response for that URI should be marked as stale - The target resource did not change - No payload We don't have a response code for this, so we need select a response code that comes close. It seems to me a simple 2.01 Created + Location of the new resource would be the best solution here, because the client needs to be informed of the URI of the newly created resource, and it doesn't hurt too much that stored responses for the two deleted URIs aren't marked as stale. I guess there have to be tons of good examples to motivate POST responses with payload. Please list some that come to your mind. Question 4.) What should be the properties of POST responses with payload? Proposal: - Applies only to POST (not to PUT or DELETE) - Payload may be a representation of the resource, or something else, depending on the operation performed by the server - Payload format is determined by Content-Type option - Not cacheable or validatable - Marks any stored responses for request URI as stale - Does not use the Location Option Question 5.) This is probably the most interesting question. What are the semantics of a POST response with payload? What happened when such a response is sent? What can an intermediary infer when it sees one? Did the target resource change? Did another resource change? Was a new resource created? Was an existing resource deleted? Did the server just compute something without changing anything? Klaus From evnikita2@gmail.com Fri Jan 28 21:58:09 2011 Return-Path: X-Original-To: core@core3.amsl.com Delivered-To: core@core3.amsl.com Received: from localhost (localhost [127.0.0.1]) by core3.amsl.com (Postfix) with ESMTP id 0B80C3A695B for ; Fri, 28 Jan 2011 21:58:09 -0800 (PST) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -2.234 X-Spam-Level: X-Spam-Status: No, score=-2.234 tagged_above=-999 required=5 tests=[AWL=-0.596, BAYES_00=-2.599, HTML_MESSAGE=0.001, RCVD_IN_BL_SPAMCOP_NET=1.96, RCVD_IN_DNSWL_LOW=-1] Received: from mail.ietf.org ([64.170.98.32]) by localhost (core3.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id jwQHtgaSgaaV for ; Fri, 28 Jan 2011 21:58:06 -0800 (PST) Received: from mail-fx0-f44.google.com (mail-fx0-f44.google.com [209.85.161.44]) by core3.amsl.com (Postfix) with ESMTP id D4A703A6895 for ; Fri, 28 Jan 2011 21:58:05 -0800 (PST) Received: by fxm9 with SMTP id 9so4413848fxm.31 for ; Fri, 28 Jan 2011 22:01:13 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma; h=domainkey-signature:message-id:date:from:user-agent:mime-version:to :subject:content-type; bh=SXYZLR1urt1jsgiUJwOGQYlFo3WBh8i2ZG5rx82MXJA=; b=xxDV427pTSxjgQHhI/FNK5CmKOXH2sZVNFSrJ4ZFaFXX7ewqZ2zsL/vVyoNkmmEt7t fU1tPlBDOwG5wHqpSoaGZu1uBuZF7IDPZ+qTsfCQPPYq7quBqHExKw13ZgEPSj5hRL44 waO7o5TBcNBvT3h8pnm4HQYVUWe8fnS0kQVa4= DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=message-id:date:from:user-agent:mime-version:to:subject :content-type; b=rphixlMC/AZRG0Of7hPSxILeWPt7Z0YkwC/6pHofoXKavEef2+djcUQL8E/yPdqWlE uvyy26NmubwqhfDDE5c2uNPn1LVm9a3BIbyn1zLbDABlEN7fiTNvI2YkEHYLePpjJcEx 8a3Y1HvWhaA67UhGzOfjjjsEW09mE2Pzwy8kc= Received: by 10.223.79.74 with SMTP id o10mr3339287fak.63.1296280872277; Fri, 28 Jan 2011 22:01:12 -0800 (PST) Received: from [127.0.0.1] ([195.191.104.134]) by mx.google.com with ESMTPS id 21sm6694038fav.17.2011.01.28.22.01.10 (version=SSLv3 cipher=RC4-MD5); Fri, 28 Jan 2011 22:01:11 -0800 (PST) Message-ID: <4D43AD3E.5030301@gmail.com> Date: Sat, 29 Jan 2011 08:01:34 +0200 From: Mykyta Yevstifeyev User-Agent: Mozilla/5.0 (Windows; U; Windows NT 5.1; ru; rv:1.9.2.13) Gecko/20101207 Thunderbird/3.1.7 MIME-Version: 1.0 To: core@ietf.org Content-Type: multipart/alternative; boundary="------------090604010108080903090907" Subject: [core] Comments on Section 11 of draft-ietf-core-coap-04 X-BeenThere: core@ietf.org X-Mailman-Version: 2.1.9 Precedence: list List-Id: "Constrained RESTful Environments \(CoRE\) Working Group list" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sat, 29 Jan 2011 05:58:09 -0000 This is a multi-part message in MIME format. --------------090604010108080903090907 Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit Hello all, I'm forwarding my message to the mailing list, that I've sent to one of the authors of draft-ietf-core-coap-04. I copied it to the mailing list befor before, but Klaus wanted to comment my message, but told me it hadn't arrived to mailing list. Mykyta > Hello all, > > On this week one of the authors of draft-ietf-core-coap-04, that is > the 'core' WG doc, wrote to uri-review mailing list to request the > review of Section 6 and Section 11.4 of the document. However I > wanted the comment the entire Section 11 of this document. So these > are my comments. > > As I've mentioned, comments to Section 11.4 can be found here: > http://www.ietf.org/mail-archive/web/uri-review/current/msg01323.html. > > As for Section 11.5. [I-D.ietf-tsvwg-iana-ports], that is referenced, > says: > >> o Port Number: If assignment of a port number is desired, either the >> port number the requester suggests for assignment or indication of >> port range (user or system) MUST be provided. If only a service >> name is to be assigned, this field is left empty. If a specific >> port number is requested, IANA is encouraged to assign the >> requested number. If a range is specified, IANA will choose a >> suitable number from the User or System Ports ranges. Note that >> the applicant MUST NOT use the requested port prior to the >> completion of the assignment. > Therefore, mentioning desired port number is acceptable. What will > happen if, e.g. the port 5683 will be assigned before the document > processes as the RFC? So there should be mentioned TBD1 - > [USER-REGISTERED PORT] and throughout the document mention TBD1 > instead 5683. > > Now as for the remainder of Section 11. Firstly, the CoAP Option > Numbers registry seems to be underspecified. What are the boundary > values for the registry value 'Number'? Looking at Section 3.2 does > not let me answer this question. Moreover, I do not understand why > did you choose using the Option Delta field instead the Option > Number. Option Deltas will allow the option numbers to be the endless > value, and IANA will not be able to track endless registry. So I > cannot say anything definite as for this registry until this issue > will not be resolved. > > As for Section 11.1. The registry is underspecified too. I would > like to suggest the following description of the 'CoAP Codes' registry: > > >> IANA is asked to create and maintain the registry called 'CoAP Codes' >> following the guidelines below. >> >> The registry consists of 3 values: Code, Description and Reference. >> They are described below: >> >> Code - an integer; values from 0 to 255 are assigned. Refers to >> the value, used in CoAP messages header. Values 1-31 are used to >> identify the message that contains the CoAP request; values 64-191 - >> CoAP response. >> >> Description - a brief description of the code. >> >> Reference - the reference, that specifies the code. >> >> Initial values are given below; new assignments are to be made >> following the 'IETF Consensus' policies [RFC5226]. >> >> +---------+---------------------------------------------------------+--------------+ >> |Code | Description >> |Reference | >> +---------+---------------------------------------------------------+--------------+ >> >> |0 | Empty message (see Section 4.3) >> |This document | >> |1-31 | Assigned by the "Method Codes" sub-registry >> |(everywhere | >> |32-63 | Reserved | >> below) | >> |64-191 | Assigned by the "Response Codes" sub-registry >> | | >> |192-255 | Reserved >> | | >> +---------+---------------------------------------------------------+--------------+ > > The same needs to be for two sub-registries. > > Secondly, you need to specify all Unassigned and Reserved values or > their ranges, per RFC 5226. Personally I consider mentioning 'All > other values are Unassigned, but values xx-yy are Reserved' as not > appropriate. > > Moreover, Reference should contain the document, but not Section, > since this may create the question 'Section of what document?' > > The same concerns Section 11.3 as well. > > Finally, as a typographical error in Section 5.9.1.3. The response > code description is for 2.04, not 2.02. > >> 5.9.1.3. 2.02 Deleted >> >> >> Like HTTP 204 "No Content", but only used in response to DELETE >> requests. >> >> This response is not cacheable. > > Thank you in advance for considering my comments in the next version > of the draft. You may feel free to contact me for further information. > > All the best, > Mykyta Yevstifeyev --------------090604010108080903090907 Content-Type: text/html; charset=UTF-8 Content-Transfer-Encoding: 8bit Hello all,

I'm forwarding my message to the mailing list, that I've sent to one of the authors of draft-ietf-core-coap-04.  I copied  it to the mailing list befor before, but Klaus wanted to comment my message, but told me it hadn't arrived to mailing list.

Mykyta
Hello all,

On this week one of the authors of draft-ietf-core-coap-04, that is the 'core' WG doc, wrote to uri-review mailing list to request the review of Section 6 and Section 11.4 of the document.  However I wanted the comment the entire Section 11 of this document.  So these are my comments.

As I've mentioned, comments to Section 11.4 can be found here: http://www.ietf.org/mail-archive/web/uri-review/current/msg01323.html.

As for Section 11.5. [I-D.ietf-tsvwg-iana-ports], that is referenced, says:

 o  Port Number: If assignment of a port number is desired, either the
      port number the requester suggests for assignment or indication of
      port range (user or system) MUST be provided.  If only a service
      name is to be assigned, this field is left empty.  If a specific
      port number is requested, IANA is encouraged to assign the
      requested number.  If a range is specified, IANA will choose a
      suitable number from the User or System Ports ranges.  Note that
      the applicant MUST NOT use the requested port prior to the
      completion of the assignment.
Therefore, mentioning desired port number is acceptable.  What will happen if, e.g. the port 5683 will be assigned before the document processes as the RFC?  So there should be mentioned TBD1 - [USER-REGISTERED PORT] and throughout the document mention TBD1 instead 5683.

Now as for the remainder of Section 11.  Firstly, the CoAP Option Numbers registry seems to be underspecified.  What are the boundary values for the registry value 'Number'?  Looking at Section 3.2 does not let me answer this question.  Moreover, I do not understand why did you choose using the Option Delta field instead the Option Number.  Option Deltas will allow the option numbers to be the endless value, and IANA will not be able to track endless registry.  So I cannot say anything definite as for this registry until this issue will not be resolved.

As for Section 11.1.  The registry is underspecified too.  I would like to suggest the following description of the 'CoAP Codes' registry:


IANA is asked to create and maintain the registry called 'CoAP Codes' following the guidelines below.

The registry consists of 3 values: Code, Description and Reference.  They are described below:

  Code - an integer; values from 0 to 255 are assigned.  Refers to the value, used in CoAP messages header.  Values 1-31 are used to identify the message that contains the CoAP request; values 64-191 - CoAP response.

  Description - a brief description of the code.

  Reference - the reference, that specifies the code.

Initial values are given below; new assignments are to be made following the 'IETF Consensus' policies [RFC5226].

+---------+---------------------------------------------------------+--------------+
|Code     | Description                                             |Reference     |
+---------+---------------------------------------------------------+--------------+  
|0        | Empty message (see Section 4.3)                         |This document |
|1-31     | Assigned by the "Method Codes" sub-registry             |(everywhere   |
|32-63    | Reserved                                                | below)       |
|64-191   | Assigned by the "Response Codes" sub-registry           |              |
|192-255  | Reserved                                                |              |
+---------+---------------------------------------------------------+--------------+

The same needs to be for two sub-registries. 

Secondly, you need to specify all Unassigned and Reserved values or their ranges, per RFC 5226.  Personally I consider mentioning 'All other values are Unassigned, but values xx-yy are Reserved' as not appropriate.

Moreover, Reference should contain the document, but not Section, since this may create the question 'Section of what document?'

The same concerns Section 11.3 as well.

Finally, as a typographical error in Section 5.9.1.3.  The response code description is for 2.04, not 2.02.

5.9.1.3. 2.02 Deleted


   Like HTTP 204 "No Content", but only used in response to DELETE
   requests.

   This response is not cacheable.

Thank you in advance for considering my comments in the next version of the draft.  You may feel free to contact me for further information.

All the best,
Mykyta Yevstifeyev

 --------------090604010108080903090907-- From cabo@tzi.org Sat Jan 29 06:43:24 2011 Return-Path: X-Original-To: core@core3.amsl.com Delivered-To: core@core3.amsl.com Received: from localhost (localhost [127.0.0.1]) by core3.amsl.com (Postfix) with ESMTP id 3417C3A672F for ; Sat, 29 Jan 2011 06:43:24 -0800 (PST) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -106.249 X-Spam-Level: X-Spam-Status: No, score=-106.249 tagged_above=-999 required=5 tests=[BAYES_00=-2.599, HELO_EQ_DE=0.35, RCVD_IN_DNSWL_MED=-4, USER_IN_WHITELIST=-100] Received: from mail.ietf.org ([64.170.98.32]) by localhost (core3.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id HBeCbcq1iVNl for ; Sat, 29 Jan 2011 06:43:22 -0800 (PST) Received: from informatik.uni-bremen.de (mailhost.informatik.uni-bremen.de [IPv6:2001:638:708:30c9::12]) by core3.amsl.com (Postfix) with ESMTP id 17BD93A67D9 for ; Sat, 29 Jan 2011 06:43:21 -0800 (PST) X-Virus-Scanned: amavisd-new at informatik.uni-bremen.de Received: from smtp-fb3.informatik.uni-bremen.de (smtp-fb3.informatik.uni-bremen.de [134.102.224.120]) by informatik.uni-bremen.de (8.14.3/8.14.3) with ESMTP id p0TEkL9o016935; Sat, 29 Jan 2011 15:46:21 +0100 (CET) Received: from [192.168.0.101] (xdsl-78-34-108-124.netcologne.de [78.34.108.124]) (using TLSv1 with cipher AES128-SHA (128/128 bits)) (No client certificate requested) by smtp-fb3.informatik.uni-bremen.de (Postfix) with ESMTPSA id 61418DDA; Sat, 29 Jan 2011 15:46:21 +0100 (CET) Mime-Version: 1.0 (Apple Message framework v1082) Content-Type: text/plain; charset=us-ascii From: Carsten Bormann In-Reply-To: <4D43AD3E.5030301@gmail.com> Date: Sat, 29 Jan 2011 15:47:10 +0100 Content-Transfer-Encoding: quoted-printable Message-Id: References: <4D43AD3E.5030301@gmail.com> To: Mykyta Yevstifeyev X-Mailer: Apple Mail (2.1082) Cc: core@ietf.org Subject: Re: [core] Comments on Section 11 of draft-ietf-core-coap-04 X-BeenThere: core@ietf.org X-Mailman-Version: 2.1.9 Precedence: list List-Id: "Constrained RESTful Environments \(CoRE\) Working Group list" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sat, 29 Jan 2011 14:43:24 -0000 On Jan 29, 2011, at 07:01, Mykyta Yevstifeyev wrote: >> What are the boundary values for the registry value 'Number'? =20 Due to the way we encode option numbers, there is no really useful upper = bound, so we didn't give one. If we implement the recent discussion about a maximum message size, = there can't be more than 1148 options in a normal-sized message, so = 17220 may be the highest option number reachable, but this is a rather = unlikely number to reach in practice (I'd expect we stay in the two = digits even in the long term). So I don't think IANA needs any guidance here beyond the IETF review = policy we already have. Thanks for reading the IANA-related sections carefully; we will make = sure these items are addressed in the next version. Gruesse, Carsten From evnikita2@gmail.com Sat Jan 29 21:59:18 2011 Return-Path: X-Original-To: core@core3.amsl.com Delivered-To: core@core3.amsl.com Received: from localhost (localhost [127.0.0.1]) by core3.amsl.com (Postfix) with ESMTP id E09C03A6B09 for ; Sat, 29 Jan 2011 21:59:18 -0800 (PST) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -2.222 X-Spam-Level: X-Spam-Status: No, score=-2.222 tagged_above=-999 required=5 tests=[AWL=-0.583, BAYES_00=-2.599, RCVD_IN_BL_SPAMCOP_NET=1.96, RCVD_IN_DNSWL_LOW=-1] Received: from mail.ietf.org ([64.170.98.32]) by localhost (core3.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id 7NHwblvUhLCO for ; Sat, 29 Jan 2011 21:59:18 -0800 (PST) Received: from mail-fx0-f44.google.com (mail-fx0-f44.google.com [209.85.161.44]) by core3.amsl.com (Postfix) with ESMTP id E09363A6A6C for ; Sat, 29 Jan 2011 21:59:17 -0800 (PST) Received: by fxm9 with SMTP id 9so5060393fxm.31 for ; Sat, 29 Jan 2011 22:02:28 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma; h=domainkey-signature:message-id:date:from:user-agent:mime-version:to :cc:subject:references:in-reply-to:content-type :content-transfer-encoding; bh=Ec8LCLgrq/WzLR141ULLVwA16uz88MMleNLm5LkkFzw=; b=sZ0VoNlEdWRNPN843hGy/EDIq1UL8OZ8z+mDCwOsUlgqI7ajaXULXfyRI2G6ho3T1i aYX9KXrb0P4TA2eMI7gcVBR6ORWDqQuaBYqpfNVVPU/iZGyLoYdA9J7hE/kV2DznmTyU kSv02Wv/GvAB/BaxLRJySgeoPjTZnyNkaUfY8= DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=message-id:date:from:user-agent:mime-version:to:cc:subject :references:in-reply-to:content-type:content-transfer-encoding; b=aAIXIV4kr/FLU9BbM/xVSXcG0Alvv9znWoMMhgYXIeUm7rNVrPlEhxR4enwzzlSZ39 jcUck8s6bZecbulyuq/b7VH8C1zernF/ENSyzcGwggDpGXU8vgL/ax7sHvWL67304JnG szDkL0HzmZWNpWzB0VnpMVFrGKVqJ/VO4C738= Received: by 10.223.98.193 with SMTP id r1mr4418778fan.83.1296367348139; Sat, 29 Jan 2011 22:02:28 -0800 (PST) Received: from [127.0.0.1] ([195.191.104.134]) by mx.google.com with ESMTPS id b7sm6941968faa.18.2011.01.29.22.02.26 (version=SSLv3 cipher=RC4-MD5); Sat, 29 Jan 2011 22:02:27 -0800 (PST) Message-ID: <4D44FF09.6000508@gmail.com> Date: Sun, 30 Jan 2011 08:02:49 +0200 From: Mykyta Yevstifeyev User-Agent: Mozilla/5.0 (Windows; U; Windows NT 5.1; ru; rv:1.9.2.13) Gecko/20101207 Thunderbird/3.1.7 MIME-Version: 1.0 To: Carsten Bormann References: <4D43AD3E.5030301@gmail.com> In-Reply-To: Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Cc: core@ietf.org Subject: Re: [core] Comments on Section 11 of draft-ietf-core-coap-04 X-BeenThere: core@ietf.org X-Mailman-Version: 2.1.9 Precedence: list List-Id: "Constrained RESTful Environments \(CoRE\) Working Group list" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sun, 30 Jan 2011 05:59:19 -0000 29.01.2011 16:47, Carsten Bormann wrote: > On Jan 29, 2011, at 07:01, Mykyta Yevstifeyev wrote: > >>> What are the boundary values for the registry value 'Number'? > Due to the way we encode option numbers, there is no really useful upper bound, so we didn't give one. > If we implement the recent discussion about a maximum message size, there can't be more than 1148 options in a normal-sized message, so 17220 may be the highest option number reachable, but this is a rather unlikely number to reach in practice (I'd expect we stay in the two digits even in the long term). > So I don't think IANA needs any guidance here beyond the IETF review policy we already have. Carsten, Let me cite RFC 5226: > < . . . > > Documents that create a new namespace < . . .> MUST > provide clear instructions on details of the namespace. In > particular, instructions MUST include: > < . . . > > 4) The size, format, and syntax of registry entries. When > creating a new name/number space, authors must describe any > technical requirements on registry (and sub-registry) values > (e.g., valid ranges for integers, length limitations on > strings, etc.) as well as the exact format in which registry > values should be displayed. > < . . . > That's why mentioning boundary values is actually needed Moreover, it has the MUST requirement. Mykyta Yevstifeyev > Thanks for reading the IANA-related sections carefully; we will make sure these items are addressed in the next version. > > Gruesse, Carsten > > From peter.van.der.stok@philips.com Mon Jan 31 00:02:38 2011 Return-Path: X-Original-To: core@core3.amsl.com Delivered-To: core@core3.amsl.com Received: from localhost (localhost [127.0.0.1]) by core3.amsl.com (Postfix) with ESMTP id 6A6263A6BA6; Mon, 31 Jan 2011 00:02:38 -0800 (PST) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -6.449 X-Spam-Level: X-Spam-Status: No, score=-6.449 tagged_above=-999 required=5 tests=[AWL=0.150, BAYES_00=-2.599, RCVD_IN_DNSWL_MED=-4] Received: from mail.ietf.org ([64.170.98.32]) by localhost (core3.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id ufQgUsCXW5vE; Mon, 31 Jan 2011 00:02:37 -0800 (PST) Received: from TX2EHSOBE005.bigfish.com (tx2ehsobe003.messaging.microsoft.com [65.55.88.13]) by core3.amsl.com (Postfix) with ESMTP id 4486B3A6BA3; Mon, 31 Jan 2011 00:02:36 -0800 (PST) Received: from mail116-tx2-R.bigfish.com (10.9.14.245) by TX2EHSOBE005.bigfish.com (10.9.40.25) with Microsoft SMTP Server id 14.1.225.8; Mon, 31 Jan 2011 08:05:49 +0000 Received: from mail116-tx2 (localhost.localdomain [127.0.0.1]) by mail116-tx2-R.bigfish.com (Postfix) with ESMTP id 989EF1182AB; Mon, 31 Jan 2011 08:05:49 +0000 (UTC) X-SpamScore: -69 X-BigFish: VPS-69(zzbb2dK15d6O9251J542N1432N98dN1447R217bL9371P853kzz1202hzz1033ILz2dh2a8h668h61h) X-Spam-TCS-SCL: 0:0 X-Forefront-Antispam-Report: KIP:(null); UIP:(null); IPVD:NLI; H:NLHILEXE01.connect1.local; RD:smtpx.philips.com; EFVD:NLI Received: from mail116-tx2 (localhost.localdomain [127.0.0.1]) by mail116-tx2 (MessageSwitch) id 1296461149433212_30613; Mon, 31 Jan 2011 08:05:49 +0000 (UTC) Received: from TX2EHSMHS020.bigfish.com (unknown [10.9.14.243]) by mail116-tx2.bigfish.com (Postfix) with ESMTP id 5B6181488051; Mon, 31 Jan 2011 08:05:49 +0000 (UTC) Received: from NLHILEXE01.connect1.local (168.87.56.20) by TX2EHSMHS020.bigfish.com (10.9.99.120) with Microsoft SMTP Server (TLS) id 14.1.225.8; Mon, 31 Jan 2011 08:05:48 +0000 Received: from NLAMSEXH04.connect1.local (172.16.153.25) by connect1.philips.com (172.16.156.150) with Microsoft SMTP Server (TLS) id 8.3.106.1; Mon, 31 Jan 2011 09:05:48 +0100 Received: from NLCLUEXM03.connect1.local ([172.16.157.42]) by NLAMSEXH04.connect1.local ([172.16.153.25]) with mapi; Mon, 31 Jan 2011 09:05:47 +0100 From: "Stok, Peter van der" To: "paduffy@cisco.com" Date: Mon, 31 Jan 2011 09:05:46 +0100 Thread-Topic: [core] link hierarchies and RFC 5785 Thread-Index: Acu/C51oS4PYubwMRC6tZvs1LOuoBwCEbhTg Message-ID: References: <8323B114-5CC2-4D35-BE86-4285346D2187@sensinode.com> <4D42F40E.6030908@cisco.com> In-Reply-To: <4D42F40E.6030908@cisco.com> Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: acceptlanguage: en-US Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 X-OriginatorOrg: philips.com Cc: core WG , "core-bounces@ietf.org" Subject: Re: [core] link hierarchies and RFC 5785 X-BeenThere: core@ietf.org X-Mailman-Version: 2.1.9 Precedence: list List-Id: "Constrained RESTful Environments \(CoRE\) Working Group list" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 31 Jan 2011 08:02:38 -0000 thanks for the suggestion, but can you elaborate a bit? peter -----Original Message----- From: Paul Duffy [mailto:paduffy@cisco.com] Sent: Friday 28 January 2011 17:51 To: Stok, Peter van der Cc: Zach Shelby; matthieu.vial@fr.non.schneider-electric.com; core-bounces@= ietf.org; core WG Subject: Re: [core] link hierarchies and RFC 5785 Would IANA assigned Private Enterprise Numbers suffice? On 1/28/2011 3:28 AM, Stok, Peter van der wrote: > ... > > Some suggestions are (given that XXX stands for BACnet, KNX, ZigBee, DALI= , oBIX, etc....): > A path for a given standard is preceded by /representation/XXX/name > Or is preceded by /XXX/name (is shorter) > Or is given by /name but with d=3D"XXX" as link extension to be returned = by resource query. > > I have no preference for any syntax, as long as there is a recommendation= in the CoAP draft on how to introduce the representation type. > > All these suggestions do not reserve any mnemonics, so no involvement by = IANA. This may lead to name clashes, but I have no idea how likely that is.= Anyone has a better suggestion while at the same time maintaining the poss= ibility to reserve mnemonics? > The information contained in this message may be confidential and legally p= rotected under applicable law. The message is intended solely for the addre= ssee(s). If you are not the intended recipient, you are hereby notified tha= t any use, forwarding, dissemination, or reproduction of this message is st= rictly prohibited and may be unlawful. If you are not the intended recipien= t, please contact the sender by return e-mail and destroy all copies of the= original message. From prvs=201256BF81=guido.moritz@uni-rostock.de Mon Jan 31 01:12:31 2011 Return-Path: X-Original-To: core@core3.amsl.com Delivered-To: core@core3.amsl.com Received: from localhost (localhost [127.0.0.1]) by core3.amsl.com (Postfix) with ESMTP id A4B0C3A6B32 for ; Mon, 31 Jan 2011 01:12:31 -0800 (PST) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -1.992 X-Spam-Level: X-Spam-Status: No, score=-1.992 tagged_above=-999 required=5 tests=[AWL=0.257, BAYES_00=-2.599, DOS_OUTLOOK_TO_MX=1, HELO_EQ_DE=0.35, RCVD_IN_DNSWL_LOW=-1] Received: from mail.ietf.org ([64.170.98.32]) by localhost (core3.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id 7ulcM3rdRH2p for ; Mon, 31 Jan 2011 01:12:30 -0800 (PST) Received: from mailrelay1.uni-rostock.de (mailrelay1.uni-rostock.de [139.30.8.201]) by core3.amsl.com (Postfix) with ESMTP id C45823A6B2F for ; Mon, 31 Jan 2011 01:12:29 -0800 (PST) From: Guido Moritz To: 'core' References: In-Reply-To: Date: Mon, 31 Jan 2011 10:15:42 +0100 Message-ID: <002a01cbc127$6f6dc020$4e494060$@uni-rostock.de> MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable X-Mailer: Microsoft Outlook 14.0 Thread-Index: AQGhxakaBs5WVgacw5WQBkurmEUXLJQ+vDVw Content-Language: de Subject: Re: [core] Response codes for POST X-BeenThere: core@ietf.org X-Mailman-Version: 2.1.9 Precedence: list List-Id: "Constrained RESTful Environments \(CoRE\) Working Group list" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 31 Jan 2011 09:12:31 -0000 Klaus, thank you for your detailed analyses. There are details in your text = about the design of CoAP I was not completely aware while reading only the = draft. I will try to answer few of your questions. > Question 2.) >=20 > What should be the properties of the general success code? >=20 > Proposal: > - Applies to any method +1 > - Payload must be ignored by any recipient Why? If the general success code is so generic, it will depend on the application if payload is required or not. > Question 3.) >=20 > What are some good example use-cases for POST responses with payload? >=20 > I guess there have to be tons of good examples to motivate POST > responses with payload. Please list some that come to your mind. I love POST to be interpreted as "server, please process my response and give me the result." This may be a new resource or maybe even two. Or no resource being created and I just get the response for my request. But = since the "please do what you have to do with this data and give me the = answer" is so generic, defining if and which payload is included is not that = simple. For our SOAP over CoAP binding we have both cases: One way request = exchange pattern without payload in the ACK and two way request response exchange pattern with payload in the ACK. > Question 4.) >=20 > What should be the properties of POST responses with payload? >=20 > Proposal: > - Applies only to POST (not to PUT or DELETE) Wouldn't the generic OK be sufficient, since POST is 'somewhat' generic = too? > - Payload may be a representation of the resource, or something else, > depending on the operation performed by the server +1 > - Payload format is determined by Content-Type option +1 =20 > Question 5.) >=20 > This is probably the most interesting question. What are the semantics > of a POST response with payload? What happened when such a response is > sent? What can an intermediary infer when it sees one? >=20 > Did the target resource change? Depends on the response code. 2.04. indicated changed resource. > Did another resource change? Location + 2.04 > Was a new resource created? Location + 2.01 > Was an existing resource deleted? 2.02 > Did the server just compute something without changing anything? 2.00 OK Guido > -----Urspr=FCngliche Nachricht----- > Von: core-bounces@ietf.org [mailto:core-bounces@ietf.org] Im Auftrag = von > Klaus Hartke > Gesendet: Freitag, 28. Januar 2011 23:14 > An: core > Betreff: [core] Response codes for POST >=20 > It has been mentioned in the webex call and on this mailing list that > there should be a response code with payload for POST requests. I, > too, agree that this would be useful to have. >=20 > We need to be specific what the properties/semantics of that response = code > are. >=20 >=20 > Each response code needs to define the following properties: >=20 > - What methods does the response code apply to. > - Is payload required or optional or forbidden. > - What is the meaning of the payload (for example, the payload in a > successful response to a GET request is a representation of the target > resource; the payload in an error response is a human-readable > diagnostic message). > - What is the format of the payload (for example, the format in a > successful response to a GET is indicated by the Content-Type option; > the format of the payload in an error response is always Net-Unicode > text). > - Is the response cacheable (max-age). > - Is the response validatable when cached (etag). > - Does the response mark stored responses for the request URI as = stale. > - Does the response mark stored responses for the Location URI become = as > stale. >=20 > To summarize coap-04, the success response codes are currently defined > as follows: >=20 > +-------------+-------------------------+---------+---------+------+-----= --+ > | Request | Response | Payload | Max-Age | Etag | = Stale | > +-------------+-------------------------+---------+---------+------+-----= --+ > | GET | 2.00 OK | x | x | x | - | > | GET + Etag | 2.03 Valid | - | updates cache | x | > | GET + Etag | 2.00 OK | x | x | x | - | > | POST | 2.01 Created | - | - | - | x | > | POST | 2.01 Created + Location | - | - | - | x | > | POST | 2.04 Changed | - | - | - | x | > | PUT | 2.04 Changed | - | - | - | x | > | PUT | 2.01 Created | - | - | - | x | > | DELETE | 2.02 Deleted | - | - | - | x | > +-------------+-------------------------+---------+---------+------+-----= --+ >=20 > You'll notice that many of the response codes have the same > properties/effects. The reason for this is that coap-04 aims to > indicate what happened semantically, rather than define one response > for each unique combination of effects. Illustrating example from > HTML: >=20 > text has the effect of making the text be rendered in italics > (often used for emphasis) > text indicates emphasized text (often rendered in italics), > i.e. the semantic meaning >=20 > I think having the response code indicate what happened semantically > is a useful property to have. We should try to keep it. >=20 >=20 > Now on to the response codes for POST. >=20 > Currently, a 2.00 (OK) response is defined to be cacheable. This makes > it unsuitable for POST responses, because we invoke the POST method > for its side-effects, not its return value. In the webex call, we > agreed that it might make sense to create a new success response code > for GET requests (say, 2.05), so 2.00 (OK) can be used to indicate > general success. >=20 > So we have three changes: >=20 > - Rename 2.00 to, say, 2.05, to be used for GET responses; >=20 > - Add a new code indicating general success; and >=20 > - Add a new code for POST responses with payload. >=20 > (I believe the two new codes will not have the same properties, so I > listed them separately.) >=20 > Here are a couple of questions to get the discussion started. >=20 >=20 > Question 1.) >=20 > What's a good name for the code used for responses to GET requests? >=20 > The name "Your request was successful and here's the resource > representation you've asked for" is too long :-) >=20 >=20 > Question 2.) >=20 > What should be the properties of the general success code? >=20 > Proposal: > - Applies to any method > - Payload must be ignored by any recipient > - Not cacheable or validatable > - Does not mark stored responses as stale, except if defined by method > - Does not use the Location Option >=20 > This would define the general success code that is currently missing > from coap-04: >=20 > "However, there is no generic Response Code indicating success, so a > Response Code in the Success class that is unrecognized by an > end-point can only be used to determine that the request was > successful without any further details." >=20 >=20 > Question 3.) >=20 > What are some good example use-cases for POST responses with payload? >=20 > The only example given so far is that of merging two resources, which > in my opinion is not a good example to motivate POST responses with > payload. In that example, a POST takes two URI arguments, merges the > two resources into a new resource, and deletes the old resources. What > we'd ideally like to say in the response would be this: >=20 > - The operation was successful > - This information is not cacheable > - The old resource #1 was deleted; any stored response for that URI > should be marked as stale > - The old resource #2 was deleted; any stored response for that URI > should be marked as stale > - A new resource was created at Location #3; any stored response for > that URI should be marked as stale > - The target resource did not change > - No payload >=20 > We don't have a response code for this, so we need select a response > code that comes close. It seems to me a simple 2.01 Created + Location > of the new resource would be the best solution here, because the > client needs to be informed of the URI of the newly created resource, > and it doesn't hurt too much that stored responses for the two deleted > URIs aren't marked as stale. >=20 > I guess there have to be tons of good examples to motivate POST > responses with payload. Please list some that come to your mind. >=20 >=20 > Question 4.) >=20 > What should be the properties of POST responses with payload? >=20 > Proposal: > - Applies only to POST (not to PUT or DELETE) > - Payload may be a representation of the resource, or something else, > depending on the operation performed by the server > - Payload format is determined by Content-Type option > - Not cacheable or validatable > - Marks any stored responses for request URI as stale > - Does not use the Location Option >=20 >=20 > Question 5.) >=20 > This is probably the most interesting question. What are the semantics > of a POST response with payload? What happened when such a response is > sent? What can an intermediary infer when it sees one? >=20 > Did the target resource change? > Did another resource change? > Was a new resource created? > Was an existing resource deleted? > Did the server just compute something without changing anything? >=20 >=20 > Klaus > _______________________________________________ > core mailing list > core@ietf.org > https://www.ietf.org/mailman/listinfo/core From matthieu.vial@fr.non.schneider-electric.com Mon Jan 31 03:01:17 2011 Return-Path: X-Original-To: core@core3.amsl.com Delivered-To: core@core3.amsl.com Received: from localhost (localhost [127.0.0.1]) by core3.amsl.com (Postfix) with ESMTP id 1976B3A68F6; Mon, 31 Jan 2011 03:01:17 -0800 (PST) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -3.05 X-Spam-Level: X-Spam-Status: No, score=-3.05 tagged_above=-999 required=5 tests=[AWL=-0.051, BAYES_00=-2.599, J_CHICKENPOX_12=0.6, RCVD_IN_DNSWL_LOW=-1] Received: from mail.ietf.org ([64.170.98.32]) by localhost (core3.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id 2mh4YaU65GQr; Mon, 31 Jan 2011 03:01:16 -0800 (PST) Received: from mailX03.eud.schneider-electric.com (mailx03.eud.schneider-electric.com [205.167.7.41]) by core3.amsl.com (Postfix) with ESMTP id 0E1AE3A68ED; Mon, 31 Jan 2011 03:01:15 -0800 (PST) Received: from ateui02.Schneider-Electric.com ([10.198.14.10]) by mailX03.eud.schneider-electric.com with ESMTP id 2011013111472929-106288 ; Mon, 31 Jan 2011 11:47:29 +0100 In-Reply-To: <002a01cbc127$6f6dc020$4e494060$@uni-rostock.de> To: Guido Moritz MIME-Version: 1.0 X-Mailer: Lotus Notes Release 6.5.6 March 06, 2007 From: Matthieu VIAL Message-ID: Date: Mon, 31 Jan 2011 12:04:25 +0100 X-MIMETrack: Serialize by Router on ATEUI02.Schneider-Electric.com/T/SVR/Schneider at 31/01/2011 12:04:28, Serialize complete at 31/01/2011 12:04:28, Itemize by SMTP Server on AXEU3OUT.schneider-electric.com/X/SVR/SEIxtra at 31/01/2011 11:47:29, Serialize by Router on AXEU3OUT.schneider-electric.com/X/SVR/SEIxtra at 31/01/2011 11:47:30, Serialize complete at 31/01/2011 11:47:30 Content-Type: text/plain; charset="US-ASCII" Cc: core-bounces@ietf.org, 'core' Subject: Re: [core] Response codes for POST X-BeenThere: core@ietf.org X-Mailman-Version: 2.1.9 Precedence: list List-Id: "Constrained RESTful Environments \(CoRE\) Working Group list" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 31 Jan 2011 11:01:17 -0000 Hi Guido, I don't understand in your proposition the exact semantic attached to the payload in the response. Is the following proposition acceptable? >> Question 5.) >> >> This is probably the most interesting question. What are the semantics >> of a POST response with payload? What happened when such a response is >> sent? What can an intermediary infer when it sees one? >> >> Was a new resource created? >Location + 2.01 The payload is the representation of the new resource. This should be used only if the new resource is not identical to the representation submited in the request (the server may add a timestamp or an automatically incremented ID for example). It is then an optimization to avoid a GET on the created resource. Or some kind of extended code to provide a detailed status of the operation. For example the client may determine from this code that a subsequent GET is needed to get the exact representation of the new resource. >> Did another resource change? >Location + 2.04 same as previous >> Did the target resource change? >Depends on the response code. 2.04. indicated changed resource. same as previous >> Was an existing resource deleted? >2.02 The payload is a representation of the last state before deletion. How the server can decide if the client is interested in the last state? I'am not in favor of having 2 methods to delete a resource to keep the interface simple and uniform. But an "invoke" POST could be used to make an atomic operation on several resources just like the merge example from Klaus. >> Did the server just compute something without changing anything? >2.00 OK The payload is the result of an "invoke" POST Matthieu From prvs=50126E67A8=guido.moritz@uni-rostock.de Mon Jan 31 03:30:54 2011 Return-Path: X-Original-To: core@core3.amsl.com Delivered-To: core@core3.amsl.com Received: from localhost (localhost [127.0.0.1]) by core3.amsl.com (Postfix) with ESMTP id 7EDDC3A6BEB for ; Mon, 31 Jan 2011 03:30:54 -0800 (PST) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -1.713 X-Spam-Level: X-Spam-Status: No, score=-1.713 tagged_above=-999 required=5 tests=[AWL=-0.064, BAYES_00=-2.599, DOS_OUTLOOK_TO_MX=1, HELO_EQ_DE=0.35, J_CHICKENPOX_12=0.6, RCVD_IN_DNSWL_LOW=-1] Received: from mail.ietf.org ([64.170.98.32]) by localhost (core3.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id YAFZecJD53zg for ; Mon, 31 Jan 2011 03:30:53 -0800 (PST) Received: from mailrelay1.uni-rostock.de (mailrelay1.uni-rostock.de [139.30.8.201]) by core3.amsl.com (Postfix) with ESMTP id 82E8A3A696D for ; Mon, 31 Jan 2011 03:30:49 -0800 (PST) From: Guido Moritz To: 'Matthieu VIAL' References: <002a01cbc127$6f6dc020$4e494060$@uni-rostock.de> In-Reply-To: Date: Mon, 31 Jan 2011 12:34:02 +0100 Message-ID: <003701cbc13a$c2845ef0$478d1cd0$@uni-rostock.de> MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable X-Mailer: Microsoft Outlook 14.0 Thread-Index: AQKMIW7+R+xr+WDOYGpf1Ub42MyD65JqL/sg Content-Language: de Cc: 'core' Subject: Re: [core] Response codes for POST X-BeenThere: core@ietf.org X-Mailman-Version: 2.1.9 Precedence: list List-Id: "Constrained RESTful Environments \(CoRE\) Working Group list" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 31 Jan 2011 11:30:54 -0000 Matthieu, See my comments inline. Guido > -----Urspr=FCngliche Nachricht----- > Von: Matthieu VIAL = [mailto:matthieu.vial@fr.non.schneider-electric.com] > Gesendet: Montag, 31. Januar 2011 12:04 > An: Guido Moritz > Cc: 'core'; core-bounces@ietf.org > Betreff: Re: [core] Response codes for POST >=20 > Hi Guido, >=20 > I don't understand in your proposition the exact semantic attached to = the > payload in the response. > Is the following proposition acceptable? >=20 > >> Question 5.) > >> > >> This is probably the most interesting question. What are the = semantics > >> of a POST response with payload? What happened when such a response > is > >> sent? What can an intermediary infer when it sees one? > >> >=20 > >> Was a new resource created? > >Location + 2.01 > The payload is the representation of the new resource. This should be = used > only if the new resource is not identical to the representation = submited > in the request (the server may add a timestamp or an automatically > incremented ID for example). It is then an optimization to avoid a GET = on > the created resource. If POST results in exactly the same resource like the submitted one, = isn't this a PUT and not a POST? > Or some kind of extended code to provide a detailed status of the > operation. For example the client may determine from this code that a > subsequent GET is needed to get the exact representation of the new > resource. In general yes, to avoid an additional GET for a new resource. Maybe the response resource (i.e. is the newly created one) is only a temporary = one, valid only for this single request. So the server does not have to = create a new one, but just sends it out and after transaction can forget about >=20 > >> Did another resource change? > >Location + 2.04 > same as previous >=20 > >> Did the target resource change? > >Depends on the response code. 2.04. indicated changed resource. > same as previous >=20 > >> Was an existing resource deleted? > >2.02 > The payload is a representation of the last state before deletion. How = the > server can decide if the client is interested in the last state? > I'am not in favor of having 2 methods to delete a resource to keep the > interface simple and uniform. But an "invoke" POST could be used to = make > an atomic operation on several resources just like the merge example = from > Klaus. If you want to delete, use DELETE. But what if it depends on some application logic if a resource is deleted. Something like "Delete if TEMP>25, otherwise keep it." A deleted resource must not be integrated = in the payload. (or are their applications for logging and roll-back to = keep the last state at the client?) >=20 > >> Did the server just compute something without changing anything? > >2.00 OK > The payload is the result of an "invoke" POST Yes. >=20 > Matthieu From klaus.hartke@googlemail.com Mon Jan 31 07:24:25 2011 Return-Path: X-Original-To: core@core3.amsl.com Delivered-To: core@core3.amsl.com Received: from localhost (localhost [127.0.0.1]) by core3.amsl.com (Postfix) with ESMTP id CB7A83A6A73 for ; Mon, 31 Jan 2011 07:24:25 -0800 (PST) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -2.544 X-Spam-Level: X-Spam-Status: No, score=-2.544 tagged_above=-999 required=5 tests=[AWL=0.433, BAYES_00=-2.599, FM_FORGED_GMAIL=0.622, RCVD_IN_DNSWL_LOW=-1] Received: from mail.ietf.org ([64.170.98.32]) by localhost (core3.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id yc4m4-e12+sE for ; Mon, 31 Jan 2011 07:24:23 -0800 (PST) Received: from mail-bw0-f44.google.com (mail-bw0-f44.google.com [209.85.214.44]) by core3.amsl.com (Postfix) with ESMTP id 6B50F3A6A86 for ; Mon, 31 Jan 2011 07:24:22 -0800 (PST) Received: by bwz12 with SMTP id 12so6233129bwz.31 for ; Mon, 31 Jan 2011 07:27:36 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=googlemail.com; s=gamma; h=domainkey-signature:mime-version:sender:in-reply-to:references:date :x-google-sender-auth:message-id:subject:from:to:cc:content-type :content-transfer-encoding; bh=ZyuO9o4RxTp61WQ3qdQjVNnF47YUfnXkajcMb30Uqs8=; b=RAzF0JAFSgPJcnDZxfN4I0Z/yS2ii2gJUx85KcfSHsgKvpALalqmQp4FPcGpqDl2cl V+ERlsCSU613+M4U1ng7e+dDsQVG4tXrG7cC2qieNrk/OvfI3MYzs1j0sU9C/paqtXem weiddWBr8OxYVJsfQ3Fn+ld8pK6b5Oan+UmP0= DomainKey-Signature: a=rsa-sha1; c=nofws; d=googlemail.com; s=gamma; h=mime-version:sender:in-reply-to:references:date :x-google-sender-auth:message-id:subject:from:to:cc:content-type :content-transfer-encoding; b=N+V0UKPlVQ+t+j0lhuE/ICgrMS//QMILoDOvFWdL9JW/oIIMtQhONe7NEYlNJpRXMf 1eyK8zEkrO0qXfiUEE4yIm6/GWbNcNUJsel8HawxYxPG84BbJZcb4u5HgfH5g4qAfdTH EqWbdjsnpM69qBLm7608jA7BocuQIWkSCsPq8= MIME-Version: 1.0 Received: by 10.204.119.204 with SMTP id a12mr406575bkr.116.1296487656090; Mon, 31 Jan 2011 07:27:36 -0800 (PST) Sender: klaus.hartke@googlemail.com Received: by 10.204.141.28 with HTTP; Mon, 31 Jan 2011 07:27:36 -0800 (PST) In-Reply-To: <4D43AD3E.5030301@gmail.com> References: <4D43AD3E.5030301@gmail.com> Date: Mon, 31 Jan 2011 16:27:36 +0100 X-Google-Sender-Auth: TDeXIBfYx1zcGdmumz6IZ099PZQ Message-ID: From: Klaus Hartke To: Mykyta Yevstifeyev Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: quoted-printable Cc: core@ietf.org Subject: Re: [core] Comments on Section 11 of draft-ietf-core-coap-04 X-BeenThere: core@ietf.org X-Mailman-Version: 2.1.9 Precedence: list List-Id: "Constrained RESTful Environments \(CoRE\) Working Group list" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 31 Jan 2011 15:24:25 -0000 Mykyta Yevstifeyev wrote: > As for Section 11.1.=A0 The registry is underspecified too.=A0 I would li= ke to > suggest the following description of the 'CoAP Codes' registry: The CoAP Codes registry isn't really intended to assign any codes. The document defines what the different ranges mean. All codes that can be registered are assigned by the two sub-registries. So I don't think we need such text. > Finally, as a typographical error in Section 5.9.1.3.=A0 The response cod= e > description is for 2.04, not 2.02. No, this is correct. A CoAP 2.02 (Deleted) response indicates that a resource was successfully deleted. It has no content, so it's similar to a HTTP 204 (No Content) response. I will create a ticket for the other issues shortly. Carsten already commented on the option numbers. Klaus From klaus.hartke@googlemail.com Mon Jan 31 07:54:17 2011 Return-Path: X-Original-To: core@core3.amsl.com Delivered-To: core@core3.amsl.com Received: from localhost (localhost [127.0.0.1]) by core3.amsl.com (Postfix) with ESMTP id 2A5BE3A6977 for ; Mon, 31 Jan 2011 07:54:17 -0800 (PST) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -2.555 X-Spam-Level: X-Spam-Status: No, score=-2.555 tagged_above=-999 required=5 tests=[AWL=0.422, BAYES_00=-2.599, FM_FORGED_GMAIL=0.622, RCVD_IN_DNSWL_LOW=-1] Received: from mail.ietf.org ([64.170.98.32]) by localhost (core3.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id PXlwhEztRwXj for ; Mon, 31 Jan 2011 07:54:10 -0800 (PST) Received: from mail-ey0-f172.google.com (mail-ey0-f172.google.com [209.85.215.172]) by core3.amsl.com (Postfix) with ESMTP id 9CF533A67F0 for ; Mon, 31 Jan 2011 07:54:10 -0800 (PST) Received: by eyd10 with SMTP id 10so2855339eyd.31 for ; Mon, 31 Jan 2011 07:57:24 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=googlemail.com; s=gamma; h=domainkey-signature:mime-version:sender:in-reply-to:references:date :x-google-sender-auth:message-id:subject:from:to:content-type; bh=PVgsfKePLTuXJQozEDIMKOEb77ZaaiyvCQY6rBw/F+8=; b=HtLg01cO6WlBFRpGXYMIBl/Y852buWXye/GqzJGPylGc0U/Z5FY4NcqL2FLQ1yp3rM rf1fTErx0Gt8DS0mDNuslJqqdh7tC7+1ONZjtrHatgD4WcLdgRNE3DbuhQ9vA/+mEeU5 LtNqkPUSq5GDiwhpVfM+9IXcrhx5jiCJuDvEE= DomainKey-Signature: a=rsa-sha1; c=nofws; d=googlemail.com; s=gamma; h=mime-version:sender:in-reply-to:references:date :x-google-sender-auth:message-id:subject:from:to:content-type; b=VA5FGQyZ+vX+dqmoJjydUZvoU83D3HjhoOfuy2ZXvCj0xSFngkNyCqnVlCZOrxh9Ck YkZAFQYfw/WdpAHPcnKwcXTCCzoY6D3jcq6kzeJ3nmqiBFrjwYjHN7xOKkl5sLmjp8/J c2FULbrLMsAATrA8TyUkL0dRSQ+CO2Wyn0J/4= MIME-Version: 1.0 Received: by 10.204.127.89 with SMTP id f25mr5463432bks.143.1296489442987; Mon, 31 Jan 2011 07:57:22 -0800 (PST) Sender: klaus.hartke@googlemail.com Received: by 10.204.141.28 with HTTP; Mon, 31 Jan 2011 07:57:22 -0800 (PST) In-Reply-To: <002a01cbc127$6f6dc020$4e494060$@uni-rostock.de> References: <002a01cbc127$6f6dc020$4e494060$@uni-rostock.de> Date: Mon, 31 Jan 2011 16:57:22 +0100 X-Google-Sender-Auth: QcoMKQMibDi2ZyD6ZTgDhUnsdmY Message-ID: From: Klaus Hartke To: core Content-Type: text/plain; charset=ISO-8859-1 Subject: Re: [core] Response codes for POST X-BeenThere: core@ietf.org X-Mailman-Version: 2.1.9 Precedence: list List-Id: "Constrained RESTful Environments \(CoRE\) Working Group list" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 31 Jan 2011 15:54:17 -0000 Guido Moritz wrote: >> Question 2.) >> >> What should be the properties of the general success code? >> >> Proposal: >> - Applies to any method > +1 On second thought, what's the meaning of a generic success response to, e.g., a GET? >> - Payload must be ignored by any recipient > Why? If the general success code is so generic, it will depend on the > application if payload is required or not. What's the meaning of payload in a generic success response? (Assuming a generic success response is different from a success response to a POST that created/updated/deleted/computed something.) >> Question 3.) >> >> What are some good example use-cases for POST responses with payload? >> >> I guess there have to be tons of good examples to motivate POST >> responses with payload. Please list some that come to your mind. > I love POST to be interpreted as "server, please process my response and > give me the result." This may be a new resource or maybe even two. Or no > resource being created and I just get the response for my request. Agreed. > For our SOAP over CoAP binding we have both cases: One way request exchange > pattern without payload in the ACK and two way request response exchange > pattern with payload in the ACK. SOAP over CoAP isn't exactly a *good* example ;-) Need moar. >> Question 4.) >> >> What should be the properties of POST responses with payload? >> >> Proposal: >> - Applies only to POST (not to PUT or DELETE) > Wouldn't the generic OK be sufficient, since POST is 'somewhat' generic too? When we have finished designing the generic OK and the response code for POST, and there seems to be no difference between the two, we can assign the same number to them. But I'd like to keep the two issues separated for now. (Example: The current success responses to POST and PUT were designed separately. But the result was that the "Created" response to a POST and the "Created" response to a PUT were so similar, that I assigned both the code 2.01) >> - Payload may be a representation of the resource, or something else, >> depending on the operation performed by the server > +1 >> - Payload format is determined by Content-Type option > +1 An interesting question is also how to use the Block Option with a POST where both request and response have payload. >> Question 5.) >> >> This is probably the most interesting question. What are the semantics >> of a POST response with payload? What happened when such a response is >> sent? What can an intermediary infer when it sees one? >> >> Did the target resource change? > Depends on the response code. 2.04. indicated changed resource. >> Did another resource change? > Location + 2.04 >> Was a new resource created? > Location + 2.01 >> Was an existing resource deleted? > 2.02 >> Did the server just compute something without changing anything? > 2.00 OK So you suggest to allow payload with 2.01 and 2.04, so a server can include the result of a POST in the response? 2.01 and 2.04 are also used for PUT. What's the meaning of payload in a response to a PUT? If it's a representation of the updated resource, shouldn't the response be cachable? Klaus From prvs=30120E270E=guido.moritz@uni-rostock.de Mon Jan 31 08:11:09 2011 Return-Path: X-Original-To: core@core3.amsl.com Delivered-To: core@core3.amsl.com Received: from localhost (localhost [127.0.0.1]) by core3.amsl.com (Postfix) with ESMTP id DB5123A6C43 for ; Mon, 31 Jan 2011 08:11:09 -0800 (PST) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -2.008 X-Spam-Level: X-Spam-Status: No, score=-2.008 tagged_above=-999 required=5 tests=[AWL=0.241, BAYES_00=-2.599, DOS_OUTLOOK_TO_MX=1, HELO_EQ_DE=0.35, RCVD_IN_DNSWL_LOW=-1] Received: from mail.ietf.org ([64.170.98.32]) by localhost (core3.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id tyNC9SjpvsnL for ; Mon, 31 Jan 2011 08:11:07 -0800 (PST) Received: from mailrelay1.uni-rostock.de (mailrelay1.uni-rostock.de [139.30.8.201]) by core3.amsl.com (Postfix) with ESMTP id D81CB3A67B6 for ; Mon, 31 Jan 2011 08:11:05 -0800 (PST) From: Guido Moritz To: 'Klaus Hartke' , 'core' References: <002a01cbc127$6f6dc020$4e494060$@uni-rostock.de> In-Reply-To: Date: Mon, 31 Jan 2011 17:14:17 +0100 Message-ID: <007601cbc161$e8ca1f60$ba5e5e20$@uni-rostock.de> MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable X-Mailer: Microsoft Outlook 14.0 Thread-Index: AQGhxakaBs5WVgacw5WQBkurmEUXLAHG5Q4yAj2uUmWUHxBJQA== Content-Language: de Subject: Re: [core] Response codes for POST X-BeenThere: core@ietf.org X-Mailman-Version: 2.1.9 Precedence: list List-Id: "Constrained RESTful Environments \(CoRE\) Working Group list" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 31 Jan 2011 16:11:11 -0000 Comments inline. Guido > -----Urspr=FCngliche Nachricht----- > Von: core-bounces@ietf.org [mailto:core-bounces@ietf.org] Im Auftrag = von > Klaus Hartke > Gesendet: Montag, 31. Januar 2011 16:57 > An: core > Betreff: Re: [core] Response codes for POST >=20 > Guido Moritz wrote: > >> Question 2.) > >> > >> What should be the properties of the general success code? > >> > >> Proposal: > >> - Applies to any method > > +1 >=20 > On second thought, what's the meaning of a generic success response > to, e.g., a GET? I would say it is the same for both. So maybe it is not required a new response code for a GET, but just remove the dependency of 2.00 OK to a specific method? >=20 > >> - Payload must be ignored by any recipient > > Why? If the general success code is so generic, it will depend on = the > > application if payload is required or not. >=20 > What's the meaning of payload in a generic success response? (Assuming > a generic success response is different from a success response to a > POST that created/updated/deleted/computed something.) >=20 > >> Question 3.) > >> > >> What are some good example use-cases for POST responses with > payload? > >> > >> I guess there have to be tons of good examples to motivate POST > >> responses with payload. Please list some that come to your mind. > > I love POST to be interpreted as "server, please process my response = and > > give me the result." This may be a new resource or maybe even two. = Or no > > resource being created and I just get the response for my request. >=20 > Agreed. >=20 > > For our SOAP over CoAP binding we have both cases: One way request > exchange > > pattern without payload in the ACK and two way request response > exchange > > pattern with payload in the ACK. >=20 > SOAP over CoAP isn't exactly a *good* example ;-) Need moar. Yea, it is not. But maybe a good example for an application profile on = top of CoAP ;) >=20 > >> Question 4.) > >> > >> What should be the properties of POST responses with payload? > >> > >> Proposal: > >> - Applies only to POST (not to PUT or DELETE) > > Wouldn't the generic OK be sufficient, since POST is 'somewhat' = generic > too? >=20 > When we have finished designing the generic OK and the response code > for POST, and there seems to be no difference between the two, we can > assign the same number to them. But I'd like to keep the two issues > separated for now. >=20 > (Example: The current success responses to POST and PUT were designed > separately. But the result was that the "Created" response to a POST > and the "Created" response to a PUT were so similar, that I assigned > both the code 2.01) >=20 > >> - Payload may be a representation of the resource, or something = else, > >> depending on the operation performed by the server > > +1 > >> - Payload format is determined by Content-Type option > > +1 >=20 > An interesting question is also how to use the Block Option with a > POST where both request and response have payload. There is a small thread on the list, that maybe the current block design = can be used with deferred responses: http://www.ietf.org/mail-archive/web/core/current/msg01508.html Maybe in future versions of block the door should be kept open.=20 >=20 > >> Question 5.) > >> > >> This is probably the most interesting question. What are the = semantics > >> of a POST response with payload? What happened when such a response > is > >> sent? What can an intermediary infer when it sees one? > >> > >> Did the target resource change? > > Depends on the response code. 2.04. indicated changed resource. > >> Did another resource change? > > Location + 2.04 > >> Was a new resource created? > > Location + 2.01 > >> Was an existing resource deleted? > > 2.02 > >> Did the server just compute something without changing anything? > > 2.00 OK >=20 > So you suggest to allow payload with 2.01 and 2.04, so a server can > include the result of a POST in the response? 2.01 and 2.04 are also > used for PUT. Sounds reasonable. >=20 > What's the meaning of payload in a response to a PUT? If it's a > representation of the updated resource, As I understand, PUT is "Replace existing with this one or create of not exists". So there is no need to response with the resource. But POST may result in a resource (or something else the server made of the request) different from the one I sent=20 > shouldn't the response be cachable? Jep. >=20 >=20 > Klaus > _______________________________________________ > core mailing list > core@ietf.org > https://www.ietf.org/mailman/listinfo/core From cabo@tzi.org Mon Jan 31 08:20:34 2011 Return-Path: X-Original-To: core@core3.amsl.com Delivered-To: core@core3.amsl.com Received: from localhost (localhost [127.0.0.1]) by core3.amsl.com (Postfix) with ESMTP id 807193A6827 for ; Mon, 31 Jan 2011 08:20:34 -0800 (PST) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -106.376 X-Spam-Level: X-Spam-Status: No, score=-106.376 tagged_above=-999 required=5 tests=[AWL=-0.127, BAYES_00=-2.599, HELO_EQ_DE=0.35, RCVD_IN_DNSWL_MED=-4, USER_IN_WHITELIST=-100] Received: from mail.ietf.org ([64.170.98.32]) by localhost (core3.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id oo+yFcL9fg47 for ; Mon, 31 Jan 2011 08:20:33 -0800 (PST) Received: from informatik.uni-bremen.de (mailhost.informatik.uni-bremen.de [IPv6:2001:638:708:30c9::12]) by core3.amsl.com (Postfix) with ESMTP id 3F50F3A679F for ; Mon, 31 Jan 2011 08:20:32 -0800 (PST) X-Virus-Scanned: amavisd-new at informatik.uni-bremen.de Received: from smtp-fb3.informatik.uni-bremen.de (smtp-fb3.informatik.uni-bremen.de [134.102.224.120]) by informatik.uni-bremen.de (8.14.3/8.14.3) with ESMTP id p0VGNeoP017625; Mon, 31 Jan 2011 17:23:40 +0100 (CET) Received: from [192.168.217.101] (p5489B7BC.dip.t-dialin.net [84.137.183.188]) (using TLSv1 with cipher AES128-SHA (128/128 bits)) (No client certificate requested) by smtp-fb3.informatik.uni-bremen.de (Postfix) with ESMTPSA id CFCBE463; Mon, 31 Jan 2011 17:23:39 +0100 (CET) Mime-Version: 1.0 (Apple Message framework v1082) Content-Type: text/plain; charset=us-ascii From: Carsten Bormann In-Reply-To: <007601cbc161$e8ca1f60$ba5e5e20$@uni-rostock.de> Date: Mon, 31 Jan 2011 17:24:40 +0100 Content-Transfer-Encoding: quoted-printable Message-Id: References: <002a01cbc127$6f6dc020$4e494060$@uni-rostock.de> <007601cbc161$e8ca1f60$ba5e5e20$@uni-rostock.de> To: Guido Moritz X-Mailer: Apple Mail (2.1082) Cc: 'core' , 'Klaus Hartke' Subject: Re: [core] Response codes for POST X-BeenThere: core@ietf.org X-Mailman-Version: 2.1.9 Precedence: list List-Id: "Constrained RESTful Environments \(CoRE\) Working Group list" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 31 Jan 2011 16:20:34 -0000 On Jan 31, 2011, at 17:14, Guido Moritz wrote: > Maybe in future versions of block the door should be kept open.=20 I'm working on a good solution for that. (Not that I think it's particularly important, but it is sure nice to be = more general here. As long as it doesn't increase complexity.) Gruesse, Carsten From matthieu.vial@fr.non.schneider-electric.com Mon Jan 31 08:31:10 2011 Return-Path: X-Original-To: core@core3.amsl.com Delivered-To: core@core3.amsl.com Received: from localhost (localhost [127.0.0.1]) by core3.amsl.com (Postfix) with ESMTP id 9D66A3A6C3E for ; Mon, 31 Jan 2011 08:31:10 -0800 (PST) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -3.347 X-Spam-Level: X-Spam-Status: No, score=-3.347 tagged_above=-999 required=5 tests=[AWL=0.252, BAYES_00=-2.599, RCVD_IN_DNSWL_LOW=-1] Received: from mail.ietf.org ([64.170.98.32]) by localhost (core3.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id tvB6NGDNneuM for ; Mon, 31 Jan 2011 08:31:09 -0800 (PST) Received: from mailX02.eud.schneider-electric.com (mailx02.eud.schneider-electric.com [205.167.7.38]) by core3.amsl.com (Postfix) with ESMTP id B89633A6C37 for ; Mon, 31 Jan 2011 08:31:09 -0800 (PST) Received: from ateui02.Schneider-Electric.com ([10.198.14.10]) by mailX02.eud.schneider-electric.com with ESMTP id 2011013117111522-164803 ; Mon, 31 Jan 2011 17:11:15 +0100 In-Reply-To: <003701cbc13a$c2845ef0$478d1cd0$@uni-rostock.de> To: Guido Moritz MIME-Version: 1.0 X-Mailer: Lotus Notes Release 6.5.6 March 06, 2007 From: Matthieu VIAL Message-ID: Date: Mon, 31 Jan 2011 17:34:20 +0100 X-MIMETrack: Serialize by Router on ATEUI02.Schneider-Electric.com/T/SVR/Schneider at 31/01/2011 17:34:22, Serialize complete at 31/01/2011 17:34:22, Itemize by SMTP Server on AXEU2OUT.schneider-electric.com/X/SVR/SEIxtra at 31/01/2011 17:11:15, Serialize by Router on AXEU2OUT.schneider-electric.com/X/SVR/SEIxtra at 31/01/2011 17:11:16, Serialize complete at 31/01/2011 17:11:16 Content-Type: text/plain; charset="US-ASCII" Cc: 'core' Subject: [core] RE AW: Response codes for POST X-BeenThere: core@ietf.org X-Mailman-Version: 2.1.9 Precedence: list List-Id: "Constrained RESTful Environments \(CoRE\) Working Group list" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 31 Jan 2011 16:31:10 -0000 >> >> Was a new resource created? >> >Location + 2.01 >> The payload is the representation of the new resource. This should be used >> only if the new resource is not identical to the representation submited >> in the request (the server may add a timestamp or an automatically >> incremented ID for example). It is then an optimization to avoid a GET on >> the created resource. >If POST results in exactly the same resource like the submitted one, isn't >this a PUT and not a POST? The idea is: REQ: POST /alrm RES: 2.01 Created /alrm/1 instead of REQ: POST /alrm RES: 2.01 Created /alrm/1 REQ: GET /alrm/1 RES: 2.00 OK or REQ: POST /alrm RES: 2.01 Created /alrm/2 if REQ: GET /alrm/2 RES: 2.00 OK But the client may not directly be interested in the final representation especially if it is quite large. Matthieu From prvs=6012D022AF=guido.moritz@uni-rostock.de Mon Jan 31 09:12:01 2011 Return-Path: X-Original-To: core@core3.amsl.com Delivered-To: core@core3.amsl.com Received: from localhost (localhost [127.0.0.1]) by core3.amsl.com (Postfix) with ESMTP id 1274D3A67F0 for ; Mon, 31 Jan 2011 09:12:01 -0800 (PST) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -2.025 X-Spam-Level: X-Spam-Status: No, score=-2.025 tagged_above=-999 required=5 tests=[AWL=0.224, BAYES_00=-2.599, DOS_OUTLOOK_TO_MX=1, HELO_EQ_DE=0.35, RCVD_IN_DNSWL_LOW=-1] Received: from mail.ietf.org ([64.170.98.32]) by localhost (core3.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id L6X79gZifY06 for ; Mon, 31 Jan 2011 09:12:00 -0800 (PST) Received: from mailrelay1.uni-rostock.de (mailrelay1.uni-rostock.de [139.30.8.201]) by core3.amsl.com (Postfix) with ESMTP id 690893A67B7 for ; Mon, 31 Jan 2011 09:11:59 -0800 (PST) From: Guido Moritz To: 'Matthieu VIAL' References: <003701cbc13a$c2845ef0$478d1cd0$@uni-rostock.de> In-Reply-To: Date: Mon, 31 Jan 2011 18:15:13 +0100 Message-ID: <008601cbc16a$6c4b27f0$44e177d0$@uni-rostock.de> MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable X-Mailer: Microsoft Outlook 14.0 Thread-Index: AQGPY/ypz35F/Ws2CIbpoZdDjanHc5RkCZpQ Content-Language: de Cc: 'core' Subject: Re: [core] RE AW: Response codes for POST X-BeenThere: core@ietf.org X-Mailman-Version: 2.1.9 Precedence: list List-Id: "Constrained RESTful Environments \(CoRE\) Working Group list" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 31 Jan 2011 17:12:01 -0000 OK, got the point. Using a subsequent GET is possible, but I would argue an overhead. In = your 'emergency scenario' you could (by means of numbers of messages) half = the network load. REQ: POST /alrm RES: 2.01 Created /alrm/1 Evacuation > But the client may not directly be interested in the final = representation > especially if it is quite large. Agreed. But this is responsibility of the application developer if = payload is included or not. So don't use a MUST or MUST NOT, but something which allows it if required. Btw, a GET may also result in a very huge result. You may have = information of the expected size during the discovery, but if the resource is = changed by a third party between discovery and invocation, you might not get what = you expected.=20 Guido > -----Urspr=FCngliche Nachricht----- > Von: Matthieu VIAL = [mailto:matthieu.vial@fr.non.schneider-electric.com] > Gesendet: Montag, 31. Januar 2011 17:34 > An: Guido Moritz > Cc: 'core' > Betreff: RE AW: [core] Response codes for POST >=20 > >> >> Was a new resource created? > >> >Location + 2.01 > >> The payload is the representation of the new resource. This should = be > used > >> only if the new resource is not identical to the representation > submited > >> in the request (the server may add a timestamp or an automatically > >> incremented ID for example). It is then an optimization to avoid a = GET > on > >> the created resource. > >If POST results in exactly the same resource like the submitted one, > isn't > >this a PUT and not a POST? >=20 > The idea is: >=20 > REQ: POST /alrm > > RES: 2.01 Created /alrm/1 > >=20 > instead of >=20 > REQ: POST /alrm > > RES: 2.01 Created /alrm/1 >=20 > REQ: GET /alrm/1 > RES: 2.00 OK > >=20 > or >=20 > REQ: POST /alrm > > RES: 2.01 Created /alrm/2 >=20 > if >=20 > REQ: GET /alrm/2 > RES: 2.00 OK > >=20 > But the client may not directly be interested in the final = representation > especially if it is quite large. >=20 > Matthieu From klaus.hartke@googlemail.com Mon Jan 31 10:08:29 2011 Return-Path: X-Original-To: core@core3.amsl.com Delivered-To: core@core3.amsl.com Received: from localhost (localhost [127.0.0.1]) by core3.amsl.com (Postfix) with ESMTP id D8A593A6ABB for ; Mon, 31 Jan 2011 10:08:29 -0800 (PST) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -2.565 X-Spam-Level: X-Spam-Status: No, score=-2.565 tagged_above=-999 required=5 tests=[AWL=0.412, BAYES_00=-2.599, FM_FORGED_GMAIL=0.622, RCVD_IN_DNSWL_LOW=-1] Received: from mail.ietf.org ([64.170.98.32]) by localhost (core3.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id qwnFgetXhFyR for ; Mon, 31 Jan 2011 10:08:28 -0800 (PST) Received: from mail-bw0-f44.google.com (mail-bw0-f44.google.com [209.85.214.44]) by core3.amsl.com (Postfix) with ESMTP id 55A5A3A6A6F for ; Mon, 31 Jan 2011 10:08:28 -0800 (PST) Received: by bwz12 with SMTP id 12so6407699bwz.31 for ; Mon, 31 Jan 2011 10:11:42 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=googlemail.com; s=gamma; h=domainkey-signature:mime-version:sender:in-reply-to:references:date :x-google-sender-auth:message-id:subject:from:to:content-type; bh=a5CRP/Yw2WqRcaV3mPEijZSVA+MGg8yjDVoLdn8t8Ps=; b=x5y7o2ueQvDsspjvKh86x79SqjlCWcEcOx31efi8Kr5zkMsnvT+Y0xpgo3befsv60b rxHQALu/hOuXUUBaP4n42YeHWiggePwj0Z3DQuudEJfSj3RiN7gdGmLBuaq2u4OOuS30 TWpanKO0BNthQ4IY5OGiUp9KOt6Gd5blpzhP8= DomainKey-Signature: a=rsa-sha1; c=nofws; d=googlemail.com; s=gamma; h=mime-version:sender:in-reply-to:references:date :x-google-sender-auth:message-id:subject:from:to:content-type; b=Ds9Z66JWBrQ4URBSsWabDZXbr2lXxE8Notn9JWckRoVeGXGAsVKs+Ylixjj4DcR3rQ p0BeXaQ0Ju0fNX8wKNPFyzfs9uSwixACHpk3eNWtX4GEaaiN1hA2yVeOySjS7oFe5/Nc sbEZjCpZOQhIWvepnnFkc6H0Dg6C9a+5VtUf0= MIME-Version: 1.0 Received: by 10.204.71.77 with SMTP id g13mr5695282bkj.170.1296497502187; Mon, 31 Jan 2011 10:11:42 -0800 (PST) Sender: klaus.hartke@googlemail.com Received: by 10.204.141.28 with HTTP; Mon, 31 Jan 2011 10:11:42 -0800 (PST) In-Reply-To: References: <003701cbc13a$c2845ef0$478d1cd0$@uni-rostock.de> Date: Mon, 31 Jan 2011 19:11:42 +0100 X-Google-Sender-Auth: hVphYYzCdSMJMVIA6lfDB5iBQsA Message-ID: From: Klaus Hartke To: core Content-Type: text/plain; charset=ISO-8859-1 Subject: Re: [core] RE AW: Response codes for POST X-BeenThere: core@ietf.org X-Mailman-Version: 2.1.9 Precedence: list List-Id: "Constrained RESTful Environments \(CoRE\) Working Group list" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 31 Jan 2011 18:08:30 -0000 Matthieu VIAL wrote: > The idea is: > > REQ: POST /alrm > > RES: 2.01 Created /alrm/1 > I think we are getting too clever here. An intermediary that sees an exchange like this > REQ: POST /alrm > > RES: 2.01 Created /alrm/1 > > REQ: GET /alrm/1 > RES: 2.00 OK > knows exactly what's going on and will do the right thing regarding, e.g., cache invalidation and updating. A client receives the location of the created resource and can decide what it wants to do next. The two operations are decoupled and can evolve independently. These all are good properties of a RESTful design. Klaus From prvs=6012D022AF=guido.moritz@uni-rostock.de Mon Jan 31 10:53:53 2011 Return-Path: X-Original-To: core@core3.amsl.com Delivered-To: core@core3.amsl.com Received: from localhost (localhost [127.0.0.1]) by core3.amsl.com (Postfix) with ESMTP id 6E7E03A6AB9 for ; Mon, 31 Jan 2011 10:53:53 -0800 (PST) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -2.04 X-Spam-Level: X-Spam-Status: No, score=-2.04 tagged_above=-999 required=5 tests=[AWL=0.209, BAYES_00=-2.599, DOS_OUTLOOK_TO_MX=1, HELO_EQ_DE=0.35, RCVD_IN_DNSWL_LOW=-1] Received: from mail.ietf.org ([64.170.98.32]) by localhost (core3.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id jwjJXLTV2gmt for ; Mon, 31 Jan 2011 10:53:52 -0800 (PST) Received: from mailrelay1.uni-rostock.de (mailrelay1.uni-rostock.de [139.30.8.201]) by core3.amsl.com (Postfix) with ESMTP id 6F32D3A6965 for ; Mon, 31 Jan 2011 10:53:52 -0800 (PST) From: Guido Moritz To: 'Klaus Hartke' , 'core' References: <003701cbc13a$c2845ef0$478d1cd0$@uni-rostock.de> In-Reply-To: Date: Mon, 31 Jan 2011 19:57:06 +0100 Message-ID: <000301cbc178$a8757f60$f9607e20$@uni-rostock.de> MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit X-Mailer: Microsoft Outlook 14.0 Thread-Index: AQI5WAjdJ5gRIcyOxPABx36hLWRQqwGPY/ypAfN2C++S9CmgMA== Content-Language: de Subject: Re: [core] RE AW: Response codes for POST X-BeenThere: core@ietf.org X-Mailman-Version: 2.1.9 Precedence: list List-Id: "Constrained RESTful Environments \(CoRE\) Working Group list" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 31 Jan 2011 18:53:53 -0000 > An intermediary that sees an exchange like this > knows exactly what's going on and will do the right thing regarding, > e.g., cache invalidation and updating. A client receives the location > of the created resource and can decide what it wants to do next. The > two operations are decoupled and can evolve independently. These all > are good properties of a RESTful design. RESTful yes, but not necessarily for resource constrained environments. Guido From klaus.hartke@googlemail.com Mon Jan 31 11:03:14 2011 Return-Path: X-Original-To: core@core3.amsl.com Delivered-To: core@core3.amsl.com Received: from localhost (localhost [127.0.0.1]) by core3.amsl.com (Postfix) with ESMTP id DDE463A6C21 for ; Mon, 31 Jan 2011 11:03:14 -0800 (PST) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -2.575 X-Spam-Level: X-Spam-Status: No, score=-2.575 tagged_above=-999 required=5 tests=[AWL=0.402, BAYES_00=-2.599, FM_FORGED_GMAIL=0.622, RCVD_IN_DNSWL_LOW=-1] Received: from mail.ietf.org ([64.170.98.32]) by localhost (core3.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id z9vQa1NUuKnz for ; Mon, 31 Jan 2011 11:03:13 -0800 (PST) Received: from mail-ew0-f44.google.com (mail-ew0-f44.google.com [209.85.215.44]) by core3.amsl.com (Postfix) with ESMTP id 94C3F3A6AD2 for ; Mon, 31 Jan 2011 11:03:13 -0800 (PST) Received: by ewy8 with SMTP id 8so2980378ewy.31 for ; Mon, 31 Jan 2011 11:06:27 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=googlemail.com; s=gamma; h=domainkey-signature:mime-version:sender:in-reply-to:references:date :x-google-sender-auth:message-id:subject:from:to:content-type; bh=3GNj3ft+JBewmKi/PJhOwcn8tZ0k9H8wd5nbauklsrQ=; b=GN37q6M2s5SvUpfu5lKG6XCXHcG2ZYNgpN2mi0Hl2Td8s8cYyJ19zoXdzsExQOA9V9 OFSvSMp0J2444TptVMSpRKO+NfWI+i+O2VZtLhBNMXfHLVvwfU65fInKM22sqFnnQXtc /57M8k61ZEOC9ilBBOsp/IBlRw9ED3kiyKWbQ= DomainKey-Signature: a=rsa-sha1; c=nofws; d=googlemail.com; s=gamma; h=mime-version:sender:in-reply-to:references:date :x-google-sender-auth:message-id:subject:from:to:content-type; b=xgkYsa3OatFXZ9e4/Hzo/eutVRx1fRdC8KMPjhqDz/QBiGcnevrfD8dwrwmBRmcvn1 e/x4viDDmAg63wMQGwrwN05JuD4cATjWT/d9wWSeZPLu9MD0lylTjhNUKpbvT2qRYWeQ 6alT2LDQEjj/vOXTjq0njPEYUTr/LJUDylkJo= MIME-Version: 1.0 Received: by 10.204.71.77 with SMTP id g13mr5755505bkj.170.1296500787748; Mon, 31 Jan 2011 11:06:27 -0800 (PST) Sender: klaus.hartke@googlemail.com Received: by 10.204.141.28 with HTTP; Mon, 31 Jan 2011 11:06:27 -0800 (PST) In-Reply-To: References: <8F9FDD45-0F2F-4AB4-887A-F8CED9320005@cisco.com> Date: Mon, 31 Jan 2011 20:06:27 +0100 X-Google-Sender-Auth: _hV7mN43d_EEwP0y1-atRUDpxFk Message-ID: From: Klaus Hartke To: core Content-Type: text/plain; charset=ISO-8859-1 Subject: Re: [core] CoAP-04 or CoAP-HTTP Mapping for addressing difference between HTTP and CoAP X-BeenThere: core@ietf.org X-Mailman-Version: 2.1.9 Precedence: list List-Id: "Constrained RESTful Environments \(CoRE\) Working Group list" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 31 Jan 2011 19:03:15 -0000 Angelo P. Castellani wrote: > B) CoAP design can continue to identify the best REST protocol for a > contrained environment, leaving the mapping specification to an > extended document specifically focused on HTTP (and maybe other > protocols as briefly discussed on the list, e.g. XMPP). +1 Klaus From evnikita2@gmail.com Mon Jan 31 21:43:10 2011 Return-Path: X-Original-To: core@core3.amsl.com Delivered-To: core@core3.amsl.com Received: from localhost (localhost [127.0.0.1]) by core3.amsl.com (Postfix) with ESMTP id 1B7A03A6B72 for ; Mon, 31 Jan 2011 21:43:10 -0800 (PST) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -3.204 X-Spam-Level: X-Spam-Status: No, score=-3.204 tagged_above=-999 required=5 tests=[AWL=0.395, BAYES_00=-2.599, RCVD_IN_DNSWL_LOW=-1] Received: from mail.ietf.org ([64.170.98.32]) by localhost (core3.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id 4YF9jp0NVjgT for ; Mon, 31 Jan 2011 21:43:09 -0800 (PST) Received: from mail-fx0-f44.google.com (mail-fx0-f44.google.com [209.85.161.44]) by core3.amsl.com (Postfix) with ESMTP id D90BF3A6B68 for ; Mon, 31 Jan 2011 21:43:08 -0800 (PST) Received: by fxm9 with SMTP id 9so7020489fxm.31 for ; Mon, 31 Jan 2011 21:46:24 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma; h=domainkey-signature:message-id:date:from:user-agent:mime-version:to :cc:subject:references:in-reply-to:content-type :content-transfer-encoding; bh=eS3LpoaZGBOjOjgX64VSYSc2v/l8H1Uj4vUWc8bSUqw=; b=M4n5mGwUaf0xayRmTpKHWDXcnoM76A1cYMCPnt6uhwLsmtn7JbONgfEjd2/utluKW3 NsMIg3PZ/hjLBMao57PpaId0y+K1DMD4V+b7A/5ryhF+X2mM9kRaSDj+MBi3mACkCObq ipJYxLgTNmaoWZXVxjfi/7tOpPbu27phJvndI= DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=message-id:date:from:user-agent:mime-version:to:cc:subject :references:in-reply-to:content-type:content-transfer-encoding; b=QiIhVUaxCzNhqEjSrrM+OmeGrgFhqZb/U2rmv4wQfLQxwHj7TUh7RGMw9YcRxpRFG0 3B6Xs1svOexbPDS/TJfSiFnqjSz3YmcbU6KKq2co4TowsYSRcfcso6Ae/UOzwg2K5MYI 3IJhAKnetmM9RznasxjghtBRR6dDITEeK7qJ4= Received: by 10.223.101.134 with SMTP id c6mr2588352fao.12.1296539184497; Mon, 31 Jan 2011 21:46:24 -0800 (PST) Received: from [127.0.0.1] ([195.191.104.134]) by mx.google.com with ESMTPS id n26sm7676551fam.37.2011.01.31.21.46.22 (version=SSLv3 cipher=RC4-MD5); Mon, 31 Jan 2011 21:46:23 -0800 (PST) Message-ID: <4D479E46.7000306@gmail.com> Date: Tue, 01 Feb 2011 07:46:46 +0200 From: Mykyta Yevstifeyev User-Agent: Mozilla/5.0 (Windows; U; Windows NT 5.1; ru; rv:1.9.2.13) Gecko/20101207 Thunderbird/3.1.7 MIME-Version: 1.0 To: Klaus Hartke References: <4D43AD3E.5030301@gmail.com> In-Reply-To: Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Cc: core@ietf.org Subject: Re: [core] Comments on Section 11 of draft-ietf-core-coap-04 X-BeenThere: core@ietf.org X-Mailman-Version: 2.1.9 Precedence: list List-Id: "Constrained RESTful Environments \(CoRE\) Working Group list" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 01 Feb 2011 05:43:10 -0000 31.01.2011 17:27, Klaus Hartke wrote: > Mykyta Yevstifeyev wrote: >> As for Section 11.1. The registry is underspecified too. I would like to >> suggest the following description of the 'CoAP Codes' registry: > The CoAP Codes registry isn't really intended to assign any codes. The > document defines what the different ranges mean. All codes that can be > registered are assigned by the two sub-registries. So I don't think we > need such text. However this might be needed for two sub-registries either. >> Finally, as a typographical error in Section 5.9.1.3. The response code >> description is for 2.04, not 2.02. > No, this is correct. A CoAP 2.02 (Deleted) response indicates that a > resource was successfully deleted. It has no content, so it's similar > to a HTTP 204 (No Content) response. Agreed here. I just haven't carefully read the section; but I noticed this shortly after I posted that message. Mykyta > I will create a ticket for the other issues shortly. Carsten already > commented on the option numbers. > > > Klaus >