From nobody Mon Apr 3 09:54:19 2017 Return-Path: X-Original-To: lp-wan@ietfa.amsl.com Delivered-To: lp-wan@ietfa.amsl.com Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id A7A52129477 for ; Mon, 3 Apr 2017 09:54:16 -0700 (PDT) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -14.523 X-Spam-Level: X-Spam-Status: No, score=-14.523 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, RCVD_IN_DNSWL_HI=-5, RCVD_IN_MSPIKE_H3=-0.01, RCVD_IN_MSPIKE_WL=-0.01, RP_MATCHES_RCVD=-0.001, SPF_HELO_PASS=-0.001, SPF_PASS=-0.001, USER_IN_DEF_DKIM_WL=-7.5] autolearn=ham autolearn_force=no Authentication-Results: ietfa.amsl.com (amavisd-new); dkim=pass (1024-bit key) header.d=cisco.com Received: from mail.ietf.org ([4.31.198.44]) by localhost (ietfa.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id bnnatKbjNL8x for ; Mon, 3 Apr 2017 09:54:15 -0700 (PDT) Received: from rcdn-iport-9.cisco.com (rcdn-iport-9.cisco.com [173.37.86.80]) (using TLSv1.2 with cipher DHE-RSA-SEED-SHA (128/128 bits)) (No client certificate requested) by ietfa.amsl.com (Postfix) with ESMTPS id EB032120046 for ; Mon, 3 Apr 2017 09:54:14 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=cisco.com; i=@cisco.com; l=1634; q=dns/txt; s=iport; t=1491238454; x=1492448054; h=from:to:subject:date:message-id:references:in-reply-to: content-transfer-encoding:mime-version; bh=pAjE55RTaEahcaqLS3NXUMxARxh0gQLvVf9u1y3cCwY=; b=ZEsIhXM1b8Fx1yqEpGRXRLE9MvFxjenaEAMC4gTQyeZlY7gukqgc9Ak3 BNo60+G4LaHGu8UVkDBj2rIqYKDVEdqv5VBcu+O29O73vodBHEqpWE17n 8pG35m3Eueck7oAgvlxffYUh7CUd90wMmtXDrlnjQqRLJymkuzkHDaRl+ 8=; X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: =?us-ascii?q?A0AVAQA6feJY/4gNJK1dGQEBAQEBAQEBA?= =?us-ascii?q?QEBBwEBAQEBg1RhgQsHjW2RVZVSgg4fC4V0AgICg0Y/GAECAQEBAQEBAWsohRU?= =?us-ascii?q?BAQEBAwEBODQXBAIBCBEEAQEfCQcnCxQJCAEBBBMIigUOrSqKVwEBAQEBAQEBA?= =?us-ascii?q?QEBAQEBAQEBAQEBGQWGToRvijkFnG0BkkaCBoUuihGTdAEfOIEFWxVBhll1iDi?= =?us-ascii?q?BDQEBAQ?= X-IronPort-AV: E=Sophos;i="5.36,271,1486425600"; d="scan'208";a="226137595" Received: from alln-core-3.cisco.com ([173.36.13.136]) by rcdn-iport-9.cisco.com with ESMTP/TLS/DHE-RSA-AES256-SHA; 03 Apr 2017 16:54:14 +0000 Received: from XCH-ALN-003.cisco.com (xch-aln-003.cisco.com [173.36.7.13]) by alln-core-3.cisco.com (8.14.5/8.14.5) with ESMTP id v33GsE2i000790 (version=TLSv1/SSLv3 cipher=AES256-SHA bits=256 verify=FAIL) for ; Mon, 3 Apr 2017 16:54:14 GMT Received: from xch-rcd-001.cisco.com (173.37.102.11) by XCH-ALN-003.cisco.com (173.36.7.13) with Microsoft SMTP Server (TLS) id 15.0.1210.3; Mon, 3 Apr 2017 11:54:13 -0500 Received: from xch-rcd-001.cisco.com ([173.37.102.11]) by XCH-RCD-001.cisco.com ([173.37.102.11]) with mapi id 15.00.1210.000; Mon, 3 Apr 2017 11:54:13 -0500 From: "Pascal Thubert (pthubert)" To: lp-wan Thread-Topic: [lp-wan] comments on the LPWAN fragmentation Thread-Index: AdKpdUyzQN0hQilQSUiYVJU0k2G/iwDJSxQA Date: Mon, 3 Apr 2017 16:54:08 +0000 Deferred-Delivery: Mon, 3 Apr 2017 16:54:05 +0000 Message-ID: References: In-Reply-To: Accept-Language: fr-FR, en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: x-ms-exchange-transport-fromentityheader: Hosted x-originating-ip: [10.61.254.62] Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 Archived-At: Subject: Re: [lp-wan] comments on the LPWAN fragmentation X-BeenThere: lp-wan@ietf.org X-Mailman-Version: 2.1.22 Precedence: list List-Id: "Low-Power Wide Area Networking \(LP-WAN\), also known as LPWA or Low-Rate WAN \(LR-WAN\)" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 03 Apr 2017 16:54:17 -0000 One more suggestion: There seems to be no way for either end to terminate the exchange in the mi= ddle. If the sender decides to terminate, it could be sending an all 1s, but then= we'd need an indication before the MIC to say abort. That's probably a goo= d idea anyway. If the receiver decided to terminate, it would signal that with an ack and = a bitmap that is all zeroes. What do you think? Pascal -----Original Message----- From: lp-wan [mailto:lp-wan-bounces@ietf.org] On Behalf Of Pascal Thubert (= pthubert) Sent: jeudi 30 mars 2017 12:00 To: lp-wan Subject: [lp-wan] comments on the LPWAN fragmentation Dear authors: Please find some questions and suggestions: - introduce the assumptions early in the doc (e.g. no reordering in the net= work) - there could be a section explain what the tools are, e.g. CFN, ACK, Bitma= p, before we use them - can there be multiple fragmented packets in parallel (how so) ?=20 - Can we interleave non fragmented packets? - discussion on timeouts is probably missing here and there - discussion on what the modes are could be expressed as a matrix with X = =3D=3D windowed or not (that's CFN=3D1 or more), and Y =3D=3D type of ackn= owledgement (none, on-error, always). And in that matrix, it would help to = figure which modes are available, and then have section to explain the pro/= con, possible mitigation of the cons and applicability of each mode. What do you think? Pascal _______________________________________________ lp-wan mailing list lp-wan@ietf.org https://www.ietf.org/mailman/listinfo/lp-wan From nobody Mon Apr 3 10:05:49 2017 Return-Path: X-Original-To: lp-wan@ietfa.amsl.com Delivered-To: lp-wan@ietfa.amsl.com Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id 400AA129476; Mon, 3 Apr 2017 10:05:47 -0700 (PDT) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -14.523 X-Spam-Level: X-Spam-Status: No, score=-14.523 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, RCVD_IN_DNSWL_HI=-5, RCVD_IN_MSPIKE_H3=-0.01, RCVD_IN_MSPIKE_WL=-0.01, RP_MATCHES_RCVD=-0.001, SPF_HELO_PASS=-0.001, SPF_PASS=-0.001, USER_IN_DEF_DKIM_WL=-7.5] autolearn=ham autolearn_force=no Authentication-Results: ietfa.amsl.com (amavisd-new); dkim=pass (1024-bit key) header.d=cisco.com Received: from mail.ietf.org ([4.31.198.44]) by localhost (ietfa.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id pyAhzJh6kWGm; Mon, 3 Apr 2017 10:05:45 -0700 (PDT) Received: from alln-iport-6.cisco.com (alln-iport-6.cisco.com [173.37.142.93]) (using TLSv1.2 with cipher DHE-RSA-SEED-SHA (128/128 bits)) (No client certificate requested) by ietfa.amsl.com (Postfix) with ESMTPS id 52FB4126DD9; Mon, 3 Apr 2017 10:05:45 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=cisco.com; i=@cisco.com; l=2637; q=dns/txt; s=iport; t=1491239145; x=1492448745; h=from:to:cc:subject:date:message-id:references: in-reply-to:content-transfer-encoding:mime-version; bh=3SQ9TyzxdUFZUIbBCzjLl01vOYDWYmt+HzAkAEArLLw=; b=GUaTf9ht4kppcnVYl1yBRYuMY1ZX/OuUjEE3bvl9ncn2tsWQaMO6pL0T ZK06UQ5A12rlUwHdNwB8Ojp0B50Hiu+FZ/O2Jc8tKD3xizJGYJ0PjvrS3 W8KgQgL0jtDoZJ0R0e7q/n3OYCheAEzNyeupJudNT1khp0PrzmTLuw9zV w=; X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: =?us-ascii?q?A0AVAQCFgOJY/5pdJa1dGQEBAQEBAQEBA?= =?us-ascii?q?QEBBwEBAQEBg1RhgQsHjW2RVZVSgg4fC4V4AoNGPxgBAgEBAQEBAQFrKIUVAQE?= =?us-ascii?q?BAQMBATg0CwwEAgEIEQQBAR8JBycLFAkIAQEEAQ0FCIoFDq0zilcBAQEBAQEBA?= =?us-ascii?q?QEBAQEBAQEBAQEBAQEYBYZOhG+KOQWcbQGKJoggkUWTdAEfOIEFWxVBhFkdgWN?= =?us-ascii?q?1iDiBDQEBAQ?= X-IronPort-AV: E=Sophos;i="5.36,271,1486425600"; d="scan'208";a="406969113" Received: from rcdn-core-3.cisco.com ([173.37.93.154]) by alln-iport-6.cisco.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 03 Apr 2017 17:05:44 +0000 Received: from XCH-RCD-002.cisco.com (xch-rcd-002.cisco.com [173.37.102.12]) by rcdn-core-3.cisco.com (8.14.5/8.14.5) with ESMTP id v33H5iqb016922 (version=TLSv1/SSLv3 cipher=AES256-SHA bits=256 verify=FAIL); Mon, 3 Apr 2017 17:05:44 GMT Received: from xch-rcd-001.cisco.com (173.37.102.11) by XCH-RCD-002.cisco.com (173.37.102.12) with Microsoft SMTP Server (TLS) id 15.0.1210.3; Mon, 3 Apr 2017 12:05:43 -0500 Received: from xch-rcd-001.cisco.com ([173.37.102.11]) by XCH-RCD-001.cisco.com ([173.37.102.11]) with mapi id 15.00.1210.000; Mon, 3 Apr 2017 12:05:43 -0500 From: "Pascal Thubert (pthubert)" To: "draft-ietf-lpwan-ipv6-static-context-hc@tools.ietf.org" , "lpwan-chairs@ietf.org" CC: lp-wan Thread-Topic: Case for splitting the fragmentation piece from the SCHC IP draft Thread-Index: AdKpdN9bW8ZHpLWVS6yCICSrM/3UuADJkBEg Date: Mon, 3 Apr 2017 17:05:15 +0000 Deferred-Delivery: Mon, 3 Apr 2017 17:04:58 +0000 Message-ID: <52de257581ce4c24956733ad160c2658@XCH-RCD-001.cisco.com> References: <2b5aa143355d4e5a9040c61ab08539f4@XCH-RCD-001.cisco.com> In-Reply-To: <2b5aa143355d4e5a9040c61ab08539f4@XCH-RCD-001.cisco.com> Accept-Language: fr-FR, en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: x-ms-exchange-transport-fromentityheader: Hosted x-originating-ip: [10.61.254.62] Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 Archived-At: Subject: Re: [lp-wan] Case for splitting the fragmentation piece from the SCHC IP draft X-BeenThere: lp-wan@ietf.org X-Mailman-Version: 2.1.22 Precedence: list List-Id: "Low-Power Wide Area Networking \(LP-WAN\), also known as LPWA or Low-Rate WAN \(LR-WAN\)" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 03 Apr 2017 17:05:47 -0000 Dear authors: I talked to several folks and got pros and cons. =20 As it goes, streamlining will only occur in a positive fashion if all the i= ntervening parties are orthogonal, different sets of authors, of reviewers = etc... This is not guaranteed (at all). The bottom line is that if we can make our dates without splitting, then we= should not waste time doing that split but rather should proceed swiftly w= ith the current format. But there should be a clear delineation of the fragmentation piece in a sel= f-contained section, so we are ready for the split if a problem occurs that= causes a delay in that piece. Take care; Pascal -----Original Message----- From: lp-wan [mailto:lp-wan-bounces@ietf.org] On Behalf Of Pascal Thubert (= pthubert) Sent: jeudi 30 mars 2017 11:49 To: lp-wan Subject: [lp-wan] Case for splitting the fragmentation piece from the SCHC = IP draft Dear all: Yesterday at the LPWAN WG meeting in Chicago, we discussed the possibility = to split the fragmentation piece off the SHCH/IP document - we also discuss= ed splitting the framework piece but quickly dismissed that, see the minute= s to be published soon. Here are some arguments in favor of splitting: - the fragment piece is a sublayer below IP in order to enable IP, but it i= s not IP - the mechanisms involved are completely different, the fragmentation has v= ery basic rules. Splitting the docs improves the clarity of what is needed = for what. - the expectations on the network are different e.g. fragmentation requires= in-order delivery, IP requires 1280 MTU. - which relates to the fact that the backend device that handles the fragme= ntation may be different (e.g. the fragmentation could be done at the NS as= opposed to SCHC/IP and CoAP that could be run in some MEC or cloud locatio= n) And then there are reasons related to the standardization process. Putting = it all together like we did with RFC 4944 can probably be seen as a mistake= with the historical perspective that we have now. With the split: - going through the review process would be streamlined; we have a very con= strained agenda - maintenance of the docs for future revision / deprecation would be easier= , either updating one or the others. With this in mind, I encourage the split... but would like to hear about reasons not to split before we make a decision= . Take care, Pascal _______________________________________________ lp-wan mailing list lp-wan@ietf.org https://www.ietf.org/mailman/listinfo/lp-wan From nobody Mon Apr 3 11:10:56 2017 Return-Path: X-Original-To: lp-wan@ietfa.amsl.com Delivered-To: lp-wan@ietfa.amsl.com Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id 9F6E712948A for ; Mon, 3 Apr 2017 11:10:55 -0700 (PDT) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -4.2 X-Spam-Level: X-Spam-Status: No, score=-4.2 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, RCVD_IN_DNSWL_MED=-2.3] autolearn=ham autolearn_force=no Received: from mail.ietf.org ([4.31.198.44]) by localhost (ietfa.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id Ds03Ka3QdlTR for ; Mon, 3 Apr 2017 11:10:53 -0700 (PDT) Received: from violet.upc.es (violet.upc.es [147.83.2.51]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by ietfa.amsl.com (Postfix) with ESMTPS id D48631287A5 for ; Mon, 3 Apr 2017 11:10:52 -0700 (PDT) Received: from entelserver.upc.edu (entelserver.upc.es [147.83.39.4]) by violet.upc.es (8.14.4/8.14.4/Debian-4.1ubuntu1) with ESMTP id v33IAkfh019497; Mon, 3 Apr 2017 20:10:47 +0200 Received: from webmail.entel.upc.edu (webmail.entel.upc.edu [147.83.39.6]) by entelserver.upc.edu (Postfix) with ESMTP id 20AC01D53C1; Mon, 3 Apr 2017 20:10:46 +0200 (CEST) Received: from 83.47.116.230 by webmail.entel.upc.edu with HTTP; Mon, 3 Apr 2017 20:10:44 +0200 Message-ID: <3fa45ea300b17a3efa2d0eca0e1834b5.squirrel@webmail.entel.upc.edu> In-Reply-To: References: Date: Mon, 3 Apr 2017 20:10:44 +0200 From: "Carles Gomez Montenegro" To: "Pascal Thubert (pthubert)" Cc: "lp-wan" User-Agent: SquirrelMail/1.4.21-1.fc14 MIME-Version: 1.0 Content-Type: text/plain;charset=iso-8859-1 Content-Transfer-Encoding: 8bit X-Priority: 3 (Normal) Importance: Normal X-Virus-Scanned: clamav-milter 0.99.2 at violet X-Virus-Status: Clean X-Greylist: ACL matched, not delayed by milter-greylist-4.3.9 (violet.upc.es [147.83.2.51]); Mon, 03 Apr 2017 20:10:47 +0200 (CEST) Archived-At: Subject: Re: [lp-wan] comments on the LPWAN fragmentation X-BeenThere: lp-wan@ietf.org X-Mailman-Version: 2.1.22 Precedence: list List-Id: "Low-Power Wide Area Networking \(LP-WAN\), also known as LPWA or Low-Rate WAN \(LR-WAN\)" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 03 Apr 2017 18:10:56 -0000 Hi Pascal, Thanks a lot for your comments. Yes, all these suggestions should help clarify and complete the existing text on fragmentation. The plan would be to address all of these comments in the next SCHC draft revision, along with updates based on feedback received in Chicago. Cheers, Carles > Dear authors: > > Please find some questions and suggestions: > > - introduce the assumptions early in the doc (e.g. no reordering in the > network) > - there could be a section explain what the tools are, e.g. CFN, ACK, > Bitmap, before we use them > - can there be multiple fragmented packets in parallel (how so) ? > - Can we interleave non fragmented packets? > - discussion on timeouts is probably missing here and there > - discussion on what the modes are could be expressed as a matrix with X > == windowed or not (that's CFN=1 or more), and Y == type of > acknowledgement (none, on-error, always). And in that matrix, it would > help to figure which modes are available, and then have section to explain > the pro/con, possible mitigation of the cons and applicability of each > mode. > > What do you think? > > Pascal > > _______________________________________________ > lp-wan mailing list > lp-wan@ietf.org > https://www.ietf.org/mailman/listinfo/lp-wan > From nobody Mon Apr 3 11:36:43 2017 Return-Path: X-Original-To: lp-wan@ietfa.amsl.com Delivered-To: lp-wan@ietfa.amsl.com Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id 484A012960D for ; Mon, 3 Apr 2017 11:36:42 -0700 (PDT) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -4.2 X-Spam-Level: X-Spam-Status: No, score=-4.2 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, RCVD_IN_DNSWL_MED=-2.3] autolearn=ham autolearn_force=no Received: from mail.ietf.org ([4.31.198.44]) by localhost (ietfa.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id bdFARxq5sfKM for ; Mon, 3 Apr 2017 11:36:40 -0700 (PDT) Received: from violet.upc.es (violet.upc.es [147.83.2.51]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by ietfa.amsl.com (Postfix) with ESMTPS id 93F751294D8 for ; Mon, 3 Apr 2017 11:36:40 -0700 (PDT) Received: from entelserver.upc.edu (entelserver.upc.es [147.83.39.4]) by violet.upc.es (8.14.4/8.14.4/Debian-4.1ubuntu1) with ESMTP id v33Iaa4L026070; Mon, 3 Apr 2017 20:36:36 +0200 Received: from webmail.entel.upc.edu (webmail.entel.upc.edu [147.83.39.6]) by entelserver.upc.edu (Postfix) with ESMTP id 5798D1D53C1; Mon, 3 Apr 2017 20:36:35 +0200 (CEST) Received: from 83.47.116.230 by webmail.entel.upc.edu with HTTP; Mon, 3 Apr 2017 20:36:33 +0200 Message-ID: <9e491cb3e8ee55700e2237676a60d1ad.squirrel@webmail.entel.upc.edu> In-Reply-To: References: Date: Mon, 3 Apr 2017 20:36:33 +0200 From: "Carles Gomez Montenegro" To: "Pascal Thubert (pthubert)" Cc: "lp-wan" User-Agent: SquirrelMail/1.4.21-1.fc14 MIME-Version: 1.0 Content-Type: text/plain;charset=iso-8859-1 Content-Transfer-Encoding: 8bit X-Priority: 3 (Normal) Importance: Normal X-Virus-Scanned: clamav-milter 0.99.2 at violet X-Virus-Status: Clean X-Greylist: Delayed for 00:25:49 by milter-greylist-4.3.9 (violet.upc.es [147.83.2.51]); Mon, 03 Apr 2017 20:36:36 +0200 (CEST) Archived-At: Subject: Re: [lp-wan] comments on the LPWAN fragmentation X-BeenThere: lp-wan@ietf.org X-Mailman-Version: 2.1.22 Precedence: list List-Id: "Low-Power Wide Area Networking \(LP-WAN\), also known as LPWA or Low-Rate WAN \(LR-WAN\)" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 03 Apr 2017 18:36:42 -0000 Hi Pascal, > One more suggestion: > > There seems to be no way for either end to terminate the exchange in the > middle. > > If the sender decides to terminate, it could be sending an all 1s, but > then we'd need an indication before the MIC to say abort. That's probably > a good idea anyway. I agree that the indication to terminate requires some special Rule ID code (or some Rule ID space) to signal that the sender does want to abort. Using CFN=11..1 in this case can be useful as some extra confirmation of the sender's willingness to abort. CFN=11..1 alone without further abort signals (or Rule ID space stolen for that purpose) might still trigger feedback from the receiver and have the receiver waiting for possible retries in the reliable modes... > If the receiver decided to terminate, it would signal that with an ack and > a bitmap that is all zeroes. My concern for this is: what happens if a receiver does not receive any fragment for a given IPv6 packet (hence the bitmap would be all zeroes), but it does *not* want to abort? I think that, in order to distinguish one situation from the other, we need some special Rule ID for it. Thoughts? Thanks, Carles From nobody Mon Apr 3 11:42:52 2017 Return-Path: X-Original-To: lp-wan@ietfa.amsl.com Delivered-To: lp-wan@ietfa.amsl.com Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id 35C7D1294E7 for ; Mon, 3 Apr 2017 11:42:50 -0700 (PDT) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -4.2 X-Spam-Level: X-Spam-Status: No, score=-4.2 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, RCVD_IN_DNSWL_MED=-2.3] autolearn=ham autolearn_force=no Received: from mail.ietf.org ([4.31.198.44]) by localhost (ietfa.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id 2nDejPKNep62 for ; Mon, 3 Apr 2017 11:42:46 -0700 (PDT) Received: from dash.upc.es (dash.upc.es [147.83.2.50]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by ietfa.amsl.com (Postfix) with ESMTPS id 403851294D4 for ; Mon, 3 Apr 2017 11:42:46 -0700 (PDT) Received: from entelserver.upc.edu (entelserver.upc.es [147.83.39.4]) by dash.upc.es (8.14.4/8.14.4/Debian-4.1ubuntu1) with ESMTP id v33IgeOa043621; Mon, 3 Apr 2017 20:42:41 +0200 Received: from webmail.entel.upc.edu (webmail.entel.upc.edu [147.83.39.6]) by entelserver.upc.edu (Postfix) with ESMTP id 096B91D53C1; Mon, 3 Apr 2017 20:42:39 +0200 (CEST) Received: from 83.47.116.230 by webmail.entel.upc.edu with HTTP; Mon, 3 Apr 2017 20:42:38 +0200 Message-ID: <77a8b83ec76d583e1e81474c3f879f77.squirrel@webmail.entel.upc.edu> In-Reply-To: <52de257581ce4c24956733ad160c2658@XCH-RCD-001.cisco.com> References: <2b5aa143355d4e5a9040c61ab08539f4@XCH-RCD-001.cisco.com> <52de257581ce4c24956733ad160c2658@XCH-RCD-001.cisco.com> Date: Mon, 3 Apr 2017 20:42:38 +0200 From: "Carles Gomez Montenegro" To: "Pascal Thubert (pthubert)" Cc: "lp-wan" User-Agent: SquirrelMail/1.4.21-1.fc14 MIME-Version: 1.0 Content-Type: text/plain;charset=iso-8859-1 Content-Transfer-Encoding: 8bit X-Priority: 3 (Normal) Importance: Normal X-Virus-Scanned: clamav-milter 0.99.2 at dash X-Virus-Status: Clean X-Greylist: Delayed for 00:31:54 by milter-greylist-4.3.9 (dash.upc.es [147.83.2.50]); Mon, 03 Apr 2017 20:42:41 +0200 (CEST) Archived-At: Subject: Re: [lp-wan] Case for splitting the fragmentation piece from the SCHC IP draft X-BeenThere: lp-wan@ietf.org X-Mailman-Version: 2.1.22 Precedence: list List-Id: "Low-Power Wide Area Networking \(LP-WAN\), also known as LPWA or Low-Rate WAN \(LR-WAN\)" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 03 Apr 2017 18:42:50 -0000 Dear Pascal, Thanks for this feedback. With regard to the fragmentation piece, its "body" is currently self-contained in a specific section. That is, fragmentation-related content other than this specific section only appears elsewhere in the document in the introduction and in the security considerations sections. I believe future revisions of the document will follow this same approach. Thus, my opinion is that if at some point a split needs to be made, it will not be a difficult thing to do. Cheers, Carles > Dear authors: > > I talked to several folks and got pros and cons. > > As it goes, streamlining will only occur in a positive fashion if all the > intervening parties are orthogonal, different sets of authors, of > reviewers etc... This is not guaranteed (at all). > > The bottom line is that if we can make our dates without splitting, then > we should not waste time doing that split but rather should proceed > swiftly with the current format. > > But there should be a clear delineation of the fragmentation piece in a > self-contained section, so we are ready for the split if a problem occurs > that causes a delay in that piece. > > Take care; > > Pascal > > -----Original Message----- > From: lp-wan [mailto:lp-wan-bounces@ietf.org] On Behalf Of Pascal Thubert > (pthubert) > Sent: jeudi 30 mars 2017 11:49 > To: lp-wan > Subject: [lp-wan] Case for splitting the fragmentation piece from the SCHC > IP draft > > Dear all: > > > > Yesterday at the LPWAN WG meeting in Chicago, we discussed the possibility > to split the fragmentation piece off the SHCH/IP document - we also > discussed splitting the framework piece but quickly dismissed that, see > the minutes to be published soon. > > Here are some arguments in favor of splitting: > - the fragment piece is a sublayer below IP in order to enable IP, but it > is not IP > - the mechanisms involved are completely different, the fragmentation has > very basic rules. Splitting the docs improves the clarity of what is > needed for what. > - the expectations on the network are different e.g. fragmentation > requires in-order delivery, IP requires 1280 MTU. > - which relates to the fact that the backend device that handles the > fragmentation may be different (e.g. the fragmentation could be done at > the NS as opposed to SCHC/IP and CoAP that could be run in some MEC or > cloud location) > > And then there are reasons related to the standardization process. Putting > it all together like we did with RFC 4944 can probably be seen as a > mistake with the historical perspective that we have now. With the split: > - going through the review process would be streamlined; we have a very > constrained agenda > - maintenance of the docs for future revision / deprecation would be > easier, either updating one or the others. > > With this in mind, I encourage the split... > > > > but would like to hear about reasons not to split before we make a > decision. > > Take care, > > Pascal > > _______________________________________________ > lp-wan mailing list > lp-wan@ietf.org > https://www.ietf.org/mailman/listinfo/lp-wan > > _______________________________________________ > lp-wan mailing list > lp-wan@ietf.org > https://www.ietf.org/mailman/listinfo/lp-wan > From nobody Mon Apr 3 17:40:15 2017 Return-Path: X-Original-To: lp-wan@ietfa.amsl.com Delivered-To: lp-wan@ietfa.amsl.com Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id EA57B1294CA for ; Mon, 3 Apr 2017 17:40:13 -0700 (PDT) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -2.618 X-Spam-Level: X-Spam-Status: No, score=-2.618 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, HTML_MESSAGE=0.001, RCVD_IN_DNSWL_LOW=-0.7, RCVD_IN_MSPIKE_H3=-0.01, RCVD_IN_MSPIKE_WL=-0.01, URIBL_BLOCKED=0.001] autolearn=ham autolearn_force=no Received: from mail.ietf.org ([4.31.198.44]) by localhost (ietfa.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id hYkWShBR9lkt for ; Mon, 3 Apr 2017 17:40:09 -0700 (PDT) Received: from relay4-d.mail.gandi.net (relay4-d.mail.gandi.net [217.70.183.196]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by ietfa.amsl.com (Postfix) with ESMTPS id BFC7B129480 for ; Mon, 3 Apr 2017 17:40:09 -0700 (PDT) Received: from mfilter22-d.gandi.net (mfilter22-d.gandi.net [217.70.178.150]) by relay4-d.mail.gandi.net (Postfix) with ESMTP id EE43E172094 for ; Tue, 4 Apr 2017 02:40:07 +0200 (CEST) X-Virus-Scanned: Debian amavisd-new at mfilter22-d.gandi.net Received: from relay4-d.mail.gandi.net ([IPv6:::ffff:217.70.183.196]) by mfilter22-d.gandi.net (mfilter22-d.gandi.net [::ffff:10.0.15.180]) (amavisd-new, port 10024) with ESMTP id rJHSajjbCOy8 for ; Tue, 4 Apr 2017 02:40:06 +0200 (CEST) X-Originating-IP: 209.85.213.51 Received: from mail-vk0-f51.google.com (mail-vk0-f51.google.com [209.85.213.51]) (Authenticated sender: ivaylo@ackl.io) by relay4-d.mail.gandi.net (Postfix) with ESMTPSA id 3F236172093 for ; Tue, 4 Apr 2017 02:40:06 +0200 (CEST) Received: by mail-vk0-f51.google.com with SMTP id r69so158567764vke.2 for ; Mon, 03 Apr 2017 17:40:06 -0700 (PDT) X-Gm-Message-State: AFeK/H1oXK1X9SHOEpLLqqSMkpgPJmrxRiF/RtjKJcjxzIJfnJ4/weP819zvnzIyDYdQ9hcWMya2VUXdgELarQ== X-Received: by 10.31.190.207 with SMTP id o198mr8955213vkf.71.1491266404954; Mon, 03 Apr 2017 17:40:04 -0700 (PDT) MIME-Version: 1.0 Received: by 10.159.36.244 with HTTP; Mon, 3 Apr 2017 17:39:34 -0700 (PDT) In-Reply-To: <9e491cb3e8ee55700e2237676a60d1ad.squirrel@webmail.entel.upc.edu> References: <9e491cb3e8ee55700e2237676a60d1ad.squirrel@webmail.entel.upc.edu> From: Ivaylo Petrov Date: Mon, 3 Apr 2017 19:39:34 -0500 X-Gmail-Original-Message-ID: Message-ID: To: Carles Gomez Montenegro Cc: "Pascal Thubert (pthubert)" , lp-wan Content-Type: multipart/alternative; boundary=001a1143a698553ac0054c4c8463 Archived-At: Subject: Re: [lp-wan] comments on the LPWAN fragmentation X-BeenThere: lp-wan@ietf.org X-Mailman-Version: 2.1.22 Precedence: list List-Id: "Low-Power Wide Area Networking \(LP-WAN\), also known as LPWA or Low-Rate WAN \(LR-WAN\)" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 04 Apr 2017 00:40:14 -0000 --001a1143a698553ac0054c4c8463 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: quoted-printable Hi Carles, =E2=80=8BDo you have any particular examples in which the receiver will kno= w that she needs to send an ACK with bitmap all zeroes? Normally if you don't receive any fragment, you don't know that you need to acknowledge (with bitmap set to all 0). The only case I currently see where that could be useful is if the receiver needs to acknowledge a window and a timer has expired before the receiver has received any fragment from the window (if I understood correctly, only the last fragment from the packet will have CFN set to 111...1, so the receiver could know that she expects more data). At the same time I don't know who should be the proactive part in such case - the sender failing to receive an ACK to resend the complete window or the receiver... Thanks, Ivaylo =E2=80=8B 2017-04-03 13:36 GMT-05:00 Carles Gomez Montenegro = : > Hi Pascal, > > > One more suggestion: > > > > There seems to be no way for either end to terminate the exchange in th= e > > middle. > > > > If the sender decides to terminate, it could be sending an all 1s, but > > then we'd need an indication before the MIC to say abort. That's probab= ly > > a good idea anyway. > > I agree that the indication to terminate requires some special Rule ID > code (or some Rule ID space) to signal that the sender does want to abort= . > Using CFN=3D11..1 in this case can be useful as some extra confirmation o= f > the sender's willingness to abort. > > CFN=3D11..1 alone without further abort signals (or Rule ID space stolen = for > that purpose) might still trigger feedback from the receiver and have the > receiver waiting for possible retries in the reliable modes... > > > If the receiver decided to terminate, it would signal that with an ack > and > > a bitmap that is all zeroes. > > My concern for this is: what happens if a receiver does not receive any > fragment for a given IPv6 packet (hence the bitmap would be all zeroes), > but it does *not* want to abort? > > I think that, in order to distinguish one situation from the other, we > need some special Rule ID for it. > > Thoughts? > > Thanks, > > Carles > > _______________________________________________ > lp-wan mailing list > lp-wan@ietf.org > https://www.ietf.org/mailman/listinfo/lp-wan > --001a1143a698553ac0054c4c8463 Content-Type: text/html; charset=UTF-8 Content-Transfer-Encoding: quoted-printable
Hi Carles,

=E2=80=8BDo you have any particular examples in = which the receiver will know that she needs to send an ACK with bitmap all = zeroes? Normally if you don't receive any fragment, you don't know = that you need to acknowledge (with bitmap set to all 0). The only case I cu= rrently see where that could be useful is if the receiver needs to acknowle= dge a window and a timer has expired before the receiver has received any f= ragment from the window (if I understood correctly, only the last fragment = from the packet will have CFN set to 111...1, so the receiver could know th= at she expects more data). At the same time I don't know who should be = the proactive part in such case - the sender failing to receive an ACK to r= esend the complete window or the receiver...

Thanks,
Ivaylo =C2=A0 =E2=80=8B


2017-04-03 13:36 GMT-05:00 Carles= Gomez Montenegro <carlesgo@entel.upc.edu>:
Hi Pascal,

> One more suggestion:
>
> There seems to be no way for either end to terminate the exchange in t= he
> middle.
>
> If the sender decides to terminate, it could be sending an all 1s, but=
> then we'd need an indication before the MIC to say abort. That'= ;s probably
> a good idea anyway.

I agree that the indication to terminate requires some special Rule = ID
code (or some Rule ID space) to signal that the sender does want to abort.<= br> Using CFN=3D11..1 in this case can be useful as some extra confirmation of<= br> the sender's willingness to abort.

CFN=3D11..1 alone without further abort signals (or Rule ID space stolen fo= r
that purpose) might still trigger feedback from the receiver and have the receiver waiting for possible retries in the reliable modes...

> If the receiver decided to terminate, it would signal that with an ack= and
> a bitmap that is all zeroes.

My concern for this is: what happens if a receiver does not receive = any
fragment for a given IPv6 packet (hence the bitmap would be all zeroes), but it does *not* want to abort?

I think that, in order to distinguish one situation from the other, we
need some special Rule ID for it.

Thoughts?

Thanks,

Carles

_______________________________________________
lp-wan mailing list
lp-wan@ietf.org
https://www.ietf.org/mailman/listinfo/lp-wan

--001a1143a698553ac0054c4c8463-- From nobody Mon Apr 3 23:07:48 2017 Return-Path: X-Original-To: lp-wan@ietfa.amsl.com Delivered-To: lp-wan@ietfa.amsl.com Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id 8BFBD124D37 for ; Mon, 3 Apr 2017 23:07:46 -0700 (PDT) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -14.522 X-Spam-Level: X-Spam-Status: No, score=-14.522 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, RCVD_IN_DNSWL_HI=-5, RCVD_IN_MSPIKE_H3=-0.01, RCVD_IN_MSPIKE_WL=-0.01, RP_MATCHES_RCVD=-0.001, SPF_HELO_PASS=-0.001, SPF_PASS=-0.001, URIBL_BLOCKED=0.001, USER_IN_DEF_DKIM_WL=-7.5] autolearn=ham autolearn_force=no Authentication-Results: ietfa.amsl.com (amavisd-new); dkim=pass (1024-bit key) header.d=cisco.com Received: from mail.ietf.org ([4.31.198.44]) by localhost (ietfa.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id OrFdremZ_a4H for ; Mon, 3 Apr 2017 23:07:44 -0700 (PDT) Received: from alln-iport-3.cisco.com (alln-iport-3.cisco.com [173.37.142.90]) (using TLSv1.2 with cipher DHE-RSA-SEED-SHA (128/128 bits)) (No client certificate requested) by ietfa.amsl.com (Postfix) with ESMTPS id 230B5127071 for ; Mon, 3 Apr 2017 23:07:42 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=cisco.com; i=@cisco.com; l=1736; q=dns/txt; s=iport; t=1491286062; x=1492495662; h=from:to:cc:subject:date:message-id:references: in-reply-to:content-transfer-encoding:mime-version; bh=giIEVkISenL0fVV9Upw0TfRrnyQnWBSTz+KhD0nbJ+8=; b=JWhBBfj5L3SWzUM3quTcPzbBsy/nK123r8mBMuxlv028nQj3Wr5aOgb3 JAF+ulgnI4fa9QsT+8xSFJLqp6Dnld80/0DernNPpScmCuowfqfIji3iG hOcT5qtbpJe2mC6SND6EKBegAEdnBk3d9/zN2yiOPrTzGtFpDtzURmRFe 0=; X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: =?us-ascii?q?A0A9AQBhN+NY/5pdJa1cDgwBAQEBAgEBA?= =?us-ascii?q?QEIAQEBAYNUgWyNdZFYlVKCDoYiAoNIPxgBAgEBAQEBAQFrKIUWAQQBeQULAgE?= =?us-ascii?q?IRjIlAQEEDgWKBgiwCopdAQEBAQEBAQEBAQEBAQEBAQEBAQEBHYZOggWCaoRUg?= =?us-ascii?q?zSCMQWQKIxFAYomiCmRPJN0AR84gQVbFVIBhgo9dYkUAQEB?= X-IronPort-AV: E=Sophos;i="5.36,273,1486425600"; d="scan'208";a="406519019" Received: from rcdn-core-3.cisco.com ([173.37.93.154]) by alln-iport-3.cisco.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 04 Apr 2017 06:07:41 +0000 Received: from XCH-RCD-005.cisco.com (xch-rcd-005.cisco.com [173.37.102.15]) by rcdn-core-3.cisco.com (8.14.5/8.14.5) with ESMTP id v3467f3M025221 (version=TLSv1/SSLv3 cipher=AES256-SHA bits=256 verify=FAIL); Tue, 4 Apr 2017 06:07:41 GMT Received: from xch-rcd-001.cisco.com (173.37.102.11) by XCH-RCD-005.cisco.com (173.37.102.15) with Microsoft SMTP Server (TLS) id 15.0.1210.3; Tue, 4 Apr 2017 01:07:40 -0500 Received: from xch-rcd-001.cisco.com ([173.37.102.11]) by XCH-RCD-001.cisco.com ([173.37.102.11]) with mapi id 15.00.1210.000; Tue, 4 Apr 2017 01:07:40 -0500 From: "Pascal Thubert (pthubert)" To: Carles Gomez Montenegro CC: lp-wan Thread-Topic: [lp-wan] comments on the LPWAN fragmentation Thread-Index: AdKpdUyzQN0hQilQSUiYVJU0k2G/iwDJSxQAAA4p3YAADajz5Q== Date: Tue, 4 Apr 2017 06:07:40 +0000 Message-ID: References: , <9e491cb3e8ee55700e2237676a60d1ad.squirrel@webmail.entel.upc.edu> In-Reply-To: <9e491cb3e8ee55700e2237676a60d1ad.squirrel@webmail.entel.upc.edu> Accept-Language: fr-FR, en-US Content-Language: fr-FR X-MS-Has-Attach: X-MS-TNEF-Correlator: x-ms-exchange-transport-fromentityheader: Hosted Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 Archived-At: Subject: Re: [lp-wan] comments on the LPWAN fragmentation X-BeenThere: lp-wan@ietf.org X-Mailman-Version: 2.1.22 Precedence: list List-Id: "Low-Power Wide Area Networking \(LP-WAN\), also known as LPWA or Low-Rate WAN \(LR-WAN\)" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 04 Apr 2017 06:07:47 -0000 Hello Carles I agree that rule is can do the trick in both directions. I do not follow you, though, on the=20 Problem with all zeros ack: The receiving device can only answer positively= once it has received something so a positive response must have a bit set = in it. Take care, Pascal > Le 3 avr. 2017 =E0 20:36, Carles Gomez Montenegro a =E9crit : >=20 > Hi Pascal, >=20 >> One more suggestion: >>=20 >> There seems to be no way for either end to terminate the exchange in the >> middle. >>=20 >> If the sender decides to terminate, it could be sending an all 1s, but >> then we'd need an indication before the MIC to say abort. That's probabl= y >> a good idea anyway. >=20 > I agree that the indication to terminate requires some special Rule ID > code (or some Rule ID space) to signal that the sender does want to abort= . > Using CFN=3D11..1 in this case can be useful as some extra confirmation o= f > the sender's willingness to abort. >=20 > CFN=3D11..1 alone without further abort signals (or Rule ID space stolen = for > that purpose) might still trigger feedback from the receiver and have the > receiver waiting for possible retries in the reliable modes... >=20 >> If the receiver decided to terminate, it would signal that with an ack a= nd >> a bitmap that is all zeroes. >=20 > My concern for this is: what happens if a receiver does not receive any > fragment for a given IPv6 packet (hence the bitmap would be all zeroes), > but it does *not* want to abort? >=20 > I think that, in order to distinguish one situation from the other, we > need some special Rule ID for it. >=20 > Thoughts? >=20 > Thanks, >=20 > Carles >=20 From nobody Mon Apr 3 23:14:59 2017 Return-Path: X-Original-To: lp-wan@ietfa.amsl.com Delivered-To: lp-wan@ietfa.amsl.com Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id EE9CD12955E for ; 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04 Apr 2017 06:14:54 +0000 Received: from XCH-RCD-003.cisco.com (xch-rcd-003.cisco.com [173.37.102.13]) by rcdn-core-5.cisco.com (8.14.5/8.14.5) with ESMTP id v346EsZk022079 (version=TLSv1/SSLv3 cipher=AES256-SHA bits=256 verify=FAIL); Tue, 4 Apr 2017 06:14:54 GMT Received: from xch-rcd-001.cisco.com (173.37.102.11) by XCH-RCD-003.cisco.com (173.37.102.13) with Microsoft SMTP Server (TLS) id 15.0.1210.3; Tue, 4 Apr 2017 01:14:53 -0500 Received: from xch-rcd-001.cisco.com ([173.37.102.11]) by XCH-RCD-001.cisco.com ([173.37.102.11]) with mapi id 15.00.1210.000; Tue, 4 Apr 2017 01:14:53 -0500 From: "Pascal Thubert (pthubert)" To: Ivaylo Petrov CC: Carles Gomez Montenegro , lp-wan Thread-Topic: [lp-wan] comments on the LPWAN fragmentation Thread-Index: AdKpdUyzQN0hQilQSUiYVJU0k2G/iwDJSxQAAA4p3YAADK2fAAABO86J Date: Tue, 4 Apr 2017 06:14:53 +0000 Message-ID: References: <9e491cb3e8ee55700e2237676a60d1ad.squirrel@webmail.entel.upc.edu>, In-Reply-To: Accept-Language: fr-FR, en-US Content-Language: fr-FR X-MS-Has-Attach: X-MS-TNEF-Correlator: x-ms-exchange-transport-fromentityheader: Hosted Content-Type: multipart/alternative; boundary="_000_A4FB4E83C12A41C09A1329FA40679E55ciscocom_" MIME-Version: 1.0 Archived-At: Subject: Re: [lp-wan] comments on the LPWAN fragmentation X-BeenThere: lp-wan@ietf.org X-Mailman-Version: 2.1.22 Precedence: list List-Id: "Low-Power Wide Area Networking \(LP-WAN\), also known as LPWA or Low-Rate WAN \(LR-WAN\)" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 04 Apr 2017 06:14:58 -0000 --_000_A4FB4E83C12A41C09A1329FA40679E55ciscocom_ Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: quoted-printable Agreed, Ivaylo. Note that both sides may have their reason to abort, like lack of memory, h= igher priority stuff to do. Also that depending in the direction, it might be better that the timeout/a= bort happens on source or destination so we should support both. Finally that anything that involves a continuation should have a timer asso= ciated, on both sides, so that resources are never wasted forever. For each= timeout there should be an action in the standard, be it only clean up and= go. Regards, Pascal Le 4 avr. 2017 ? 02:40, Ivaylo Petrov > a ?crit : Hi Carles, ?Do you have any particular examples in which the receiver will know that s= he needs to send an ACK with bitmap all zeroes? Normally if you don't recei= ve any fragment, you don't know that you need to acknowledge (with bitmap s= et to all 0). The only case I currently see where that could be useful is i= f the receiver needs to acknowledge a window and a timer has expired before= the receiver has received any fragment from the window (if I understood co= rrectly, only the last fragment from the packet will have CFN set to 111...= 1, so the receiver could know that she expects more data). At the same time= I don't know who should be the proactive part in such case - the sender fa= iling to receive an ACK to resend the complete window or the receiver... Thanks, Ivaylo ? 2017-04-03 13:36 GMT-05:00 Carles Gomez Montenegro >: Hi Pascal, > One more suggestion: > > There seems to be no way for either end to terminate the exchange in the > middle. > > If the sender decides to terminate, it could be sending an all 1s, but > then we'd need an indication before the MIC to say abort. That's probably > a good idea anyway. I agree that the indication to terminate requires some special Rule ID code (or some Rule ID space) to signal that the sender does want to abort. Using CFN=3D11..1 in this case can be useful as some extra confirmation of the sender's willingness to abort. CFN=3D11..1 alone without further abort signals (or Rule ID space stolen fo= r that purpose) might still trigger feedback from the receiver and have the receiver waiting for possible retries in the reliable modes... > If the receiver decided to terminate, it would signal that with an ack an= d > a bitmap that is all zeroes. My concern for this is: what happens if a receiver does not receive any fragment for a given IPv6 packet (hence the bitmap would be all zeroes), but it does *not* want to abort? I think that, in order to distinguish one situation from the other, we need some special Rule ID for it. Thoughts? Thanks, Carles _______________________________________________ lp-wan mailing list lp-wan@ietf.org https://www.ietf.org/mailman/listinfo/lp-wan --_000_A4FB4E83C12A41C09A1329FA40679E55ciscocom_ Content-Type: text/html; charset="us-ascii" Content-Transfer-Encoding: quoted-printable
Agreed, Ivaylo.

Note that both sides may have their reason t= o abort, like lack of memory, higher priority stuff to do.

Also that depending in the direction, it might be better that the time= out/abort happens on source or destination so we should support both.

Finally that anything that involves a continuation should have a timer= associated, on both sides, so that resources are never wasted forever. For= each timeout there should be an action in the standard, be it only clean u= p and go.

Regards,

Pascal

Le 4 avr. 2017 à 02:40, Ivaylo Petrov <ivaylo@ackl.io> a écrit :

Hi Carles,

​Do you have a= ny particular examples in which the receiver will know that she needs to se= nd an ACK with bitmap all zeroes? Normally if you don't receive any fragmen= t, you don't know that you need to acknowledge (with bitmap set to all 0). The only case I currently see where that could= be useful is if the receiver needs to acknowledge a window and a timer has= expired before the receiver has received any fragment from the window (if = I understood correctly, only the last fragment from the packet will have CFN set to 111...1, so the receive= r could know that she expects more data). At the same time I don't know who= should be the proactive part in such case - the sender failing to receive = an ACK to resend the complete window or the receiver...

Thanks,
Ivaylo   ​= ;


2017-04-03 13:36 GMT-05:00 Carles Gomez Monteneg= ro <carlesgo@en= tel.upc.edu>:
Hi Pascal,

> One more suggestion:
>
> There seems to be no way for either end to terminate the exchange in t= he
> middle.
>
> If the sender decides to terminate, it could be sending an all 1s, but=
> then we'd need an indication before the MIC to say abort. That's proba= bly
> a good idea anyway.

I agree that the indication to terminate requires some special Rule = ID
code (or some Rule ID space) to signal that the sender does want to abort.<= br> Using CFN=3D11..1 in this case can be useful as some extra confirmation of<= br> the sender's willingness to abort.

CFN=3D11..1 alone without further abort signals (or Rule ID space stolen fo= r
that purpose) might still trigger feedback from the receiver and have the receiver waiting for possible retries in the reliable modes...

> If the receiver decided to terminate, it would signal that with an ack= and
> a bitmap that is all zeroes.

My concern for this is: what happens if a receiver does not receive = any
fragment for a given IPv6 packet (hence the bitmap would be all zeroes), but it does *not* want to abort?

I think that, in order to distinguish one situation from the other, we
need some special Rule ID for it.

Thoughts?

Thanks,

Carles

_______________________________________________
lp-wan mailing list
lp-wan@ietf.org
https://www.ietf.org/mailman/listinfo/lp-wan

--_000_A4FB4E83C12A41C09A1329FA40679E55ciscocom_-- From nobody Tue Apr 4 02:10:06 2017 Return-Path: X-Original-To: lp-wan@ietfa.amsl.com Delivered-To: lp-wan@ietfa.amsl.com Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id 01E6B126BFD for ; Tue, 4 Apr 2017 02:10:05 -0700 (PDT) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -2.4 X-Spam-Level: X-Spam-Status: No, score=-2.4 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, FREEMAIL_FORGED_FROMDOMAIN=0.197, FREEMAIL_FROM=0.001, HEADER_FROM_DIFFERENT_DOMAINS=0.001, HTML_MESSAGE=0.001, RCVD_IN_DNSWL_LOW=-0.7, SPF_PASS=-0.001, URIBL_BLOCKED=0.001] autolearn=ham autolearn_force=no Authentication-Results: ietfa.amsl.com (amavisd-new); dkim=pass (2048-bit key) header.d=gmail.com Received: from mail.ietf.org ([4.31.198.44]) by localhost (ietfa.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id aO28kqPLJhjQ for ; Tue, 4 Apr 2017 02:10:01 -0700 (PDT) Received: from mail-oi0-x231.google.com (mail-oi0-x231.google.com [IPv6:2607:f8b0:4003:c06::231]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by ietfa.amsl.com (Postfix) with ESMTPS id BF51E1273B1 for ; Tue, 4 Apr 2017 02:10:01 -0700 (PDT) Received: by mail-oi0-x231.google.com with SMTP id d2so22539771oig.1 for ; Tue, 04 Apr 2017 02:10:01 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=mime-version:sender:in-reply-to:references:from:date:message-id :subject:to:cc; bh=SVj6m3K6x9DtY3jnOdVijnJoHoVLzLUQXBXidCUgkuM=; b=tX/A7RUkmby6vsRFTN9KLFu3YuigPQJDh9aYtOfyBSwuHJQaPL8dA7UufcFhqlH0o9 AQyn9Nb0qJhrrLSyTd+qUGkY+qKPl2FB3SzLKEbxolcrcqO//HvDuxzAggyz2QPo4UCW YTpwAxyysav1LtbnF7fXPjoQ5IQrAHtpxqSqfEv1DuZWQDE11R7TKMPk2o3CdMBCJzcp bvRUjmKi19/OArC1uIgafa3ftSJPkAwg43VaGL6Ksmx3azuEJ2TMuB1c+MEFW5WpSKF/ gu+2nS30AF6Yy/tNFZf9F6FAPwdzv2v5j7SilKnrbu6qL2ti/egQkWnRykQGc2Y+t2uD PYoQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:sender:in-reply-to:references:from :date:message-id:subject:to:cc; bh=SVj6m3K6x9DtY3jnOdVijnJoHoVLzLUQXBXidCUgkuM=; b=j4FRUhOK8NWYAPsDNWzxxTZVPzqGZIHjBe0vDyFMwmmzynDqnUEwjtT0FuFfCnNnKE L4OJhaUNYGf0h/PtT/4PpsVzAFfC0BHuzdAXZTZy8z2tzsDqVMpIkf21nMT0emwVPr6k GJN2zi0Gs8TQVzowFQT1TFduHh3vv/YXVnI29xX46L7RQ+SCMLGz+n+iJ/vcNkVvI/RF kabjaNXJ/C+ak/J/x6wnk1VfVBlDc0LWnW7Rl82A6S6SlbYl5OKwF9vG82du5WH7IZwc mPsh+aO3D3QGWxydOYYNHFfa36MUTFPT6p+Ba7QU923unTSoqGSMnMJXTVXHmfMySPHn rTwQ== X-Gm-Message-State: AFeK/H1TsbIC58OqrIMAZadqZzSXkYWW5eJziE8THtc8bJvE2uvouGB7YZQ/mhCHDxAu1Q30GjnNLkSSmOcFXA== X-Received: by 10.157.27.150 with SMTP id z22mr11019126otd.122.1491297001001; Tue, 04 Apr 2017 02:10:01 -0700 (PDT) MIME-Version: 1.0 Sender: anaminaburo@gmail.com Received: by 10.202.102.36 with HTTP; Tue, 4 Apr 2017 02:09:40 -0700 (PDT) In-Reply-To: <77a8b83ec76d583e1e81474c3f879f77.squirrel@webmail.entel.upc.edu> References: <2b5aa143355d4e5a9040c61ab08539f4@XCH-RCD-001.cisco.com> <52de257581ce4c24956733ad160c2658@XCH-RCD-001.cisco.com> <77a8b83ec76d583e1e81474c3f879f77.squirrel@webmail.entel.upc.edu> From: Ana Minaburo Date: Tue, 4 Apr 2017 11:09:40 +0200 X-Google-Sender-Auth: aG5upu_YOG5UWnJIlu_ViYgNeHU Message-ID: To: Carles Gomez Montenegro Cc: "Pascal Thubert (pthubert)" , lp-wan Content-Type: multipart/alternative; boundary=001a113e39ceffdcb5054c53a3ac Archived-At: Subject: Re: [lp-wan] Case for splitting the fragmentation piece from the SCHC IP draft X-BeenThere: lp-wan@ietf.org X-Mailman-Version: 2.1.22 Precedence: list List-Id: "Low-Power Wide Area Networking \(LP-WAN\), also known as LPWA or Low-Rate WAN \(LR-WAN\)" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 04 Apr 2017 09:10:05 -0000 --001a113e39ceffdcb5054c53a3ac Content-Type: text/plain; charset=UTF-8 Dear Pascal and all, I agree with Carles, the fragmentation part could be easily taken out from the document if needed. Nevertheless, I think the Header Compression and Fragmentation solutions must go together for the LPWAN network characteristics, do one or the other will not be enough, I think we need to do both to get the best performance. The only reason to split the document is only about standardization schedule and deadlines. But in the practice we need both of them. Ana On Mon, Apr 3, 2017 at 8:42 PM, Carles Gomez Montenegro < carlesgo@entel.upc.edu> wrote: > Dear Pascal, > > Thanks for this feedback. > > With regard to the fragmentation piece, its "body" is currently > self-contained in a specific section. That is, fragmentation-related > content other than this specific section only appears elsewhere in the > document in the introduction and in the security considerations sections. > > I believe future revisions of the document will follow this same approach. > Thus, my opinion is that if at some point a split needs to be made, it > will not be a difficult thing to do. > > Cheers, > > Carles > > > > > Dear authors: > > > > I talked to several folks and got pros and cons. > > > > As it goes, streamlining will only occur in a positive fashion if all the > > intervening parties are orthogonal, different sets of authors, of > > reviewers etc... This is not guaranteed (at all). > > > > The bottom line is that if we can make our dates without splitting, then > > we should not waste time doing that split but rather should proceed > > swiftly with the current format. > > > > But there should be a clear delineation of the fragmentation piece in a > > self-contained section, so we are ready for the split if a problem occurs > > that causes a delay in that piece. > > > > Take care; > > > > Pascal > > > > -----Original Message----- > > From: lp-wan [mailto:lp-wan-bounces@ietf.org] On Behalf Of Pascal > Thubert > > (pthubert) > > Sent: jeudi 30 mars 2017 11:49 > > To: lp-wan > > Subject: [lp-wan] Case for splitting the fragmentation piece from the > SCHC > > IP draft > > > > Dear all: > > > > > > > > Yesterday at the LPWAN WG meeting in Chicago, we discussed the > possibility > > to split the fragmentation piece off the SHCH/IP document - we also > > discussed splitting the framework piece but quickly dismissed that, see > > the minutes to be published soon. > > > > Here are some arguments in favor of splitting: > > - the fragment piece is a sublayer below IP in order to enable IP, but it > > is not IP > > - the mechanisms involved are completely different, the fragmentation has > > very basic rules. Splitting the docs improves the clarity of what is > > needed for what. > > - the expectations on the network are different e.g. fragmentation > > requires in-order delivery, IP requires 1280 MTU. > > - which relates to the fact that the backend device that handles the > > fragmentation may be different (e.g. the fragmentation could be done at > > the NS as opposed to SCHC/IP and CoAP that could be run in some MEC or > > cloud location) > > > > And then there are reasons related to the standardization process. > Putting > > it all together like we did with RFC 4944 can probably be seen as a > > mistake with the historical perspective that we have now. With the split: > > - going through the review process would be streamlined; we have a very > > constrained agenda > > - maintenance of the docs for future revision / deprecation would be > > easier, either updating one or the others. > > > > With this in mind, I encourage the split... > > > > > > > > but would like to hear about reasons not to split before we make a > > decision. > > > > Take care, > > > > Pascal > > > > _______________________________________________ > > lp-wan mailing list > > lp-wan@ietf.org > > https://www.ietf.org/mailman/listinfo/lp-wan > > > > _______________________________________________ > > lp-wan mailing list > > lp-wan@ietf.org > > https://www.ietf.org/mailman/listinfo/lp-wan > > > > > _______________________________________________ > lp-wan mailing list > lp-wan@ietf.org > https://www.ietf.org/mailman/listinfo/lp-wan > --001a113e39ceffdcb5054c53a3ac Content-Type: text/html; charset=UTF-8 Content-Transfer-Encoding: quoted-printable
Dear Pascal and all,

I agree with Carle= s, the fragmentation part could be easily taken out from the document if ne= eded. Nevertheless, I think the Header Compression and Fragmentation soluti= ons must go together for the LPWAN network characteristics, do one or the o= ther will not be enough, I think we need to do both to get the best perform= ance.=C2=A0

The only reason to split the document = is only about standardization schedule and deadlines. But in the practice w= e need both of them.

Ana

=




On Mon, Apr 3, 2017 at 8:42 PM,= Carles Gomez Montenegro <carlesgo@entel.upc.edu> wrote= :
Dear Pascal,

Thanks for this feedback.

With regard to the fragmentation piece, its "body" is currently self-contained in a specific section. That is, fragmentation-related
content other than this specific section only appears elsewhere in the
document in the introduction and in the security considerations sections.
I believe future revisions of the document will follow this same approach.<= br> Thus, my opinion is that if at some point a split needs to be made, it
will not be a difficult thing to do.

Cheers,

Carles



> Dear authors:
>
> I talked to several folks and got pros and cons.
>
> As it goes, streamlining will only occur in a positive fashion if all = the
> intervening parties are orthogonal, different sets of authors, of
> reviewers etc... This is not guaranteed (at all).
>
> The bottom line is that if we can make our dates without splitting, th= en
> we should not waste time doing that split but rather should proceed > swiftly with the current format.
>
> But there should be a clear delineation of the fragmentation piece in = a
> self-contained section, so we are ready for the split if a problem occ= urs
> that causes a delay in that piece.
>
> Take care;
>
> Pascal
>
> -----Original Message-----
> From: lp-wan [mailto:lp-wan= -bounces@ietf.org] On Behalf Of Pascal Thubert
> (pthubert)
> Sent: jeudi 30 mars 2017 11:49
> To: lp-wan <lp-wan@ietf.org&= gt;
> Subject: [lp-wan] Case for splitting the fragmentation piece from the = SCHC
> IP draft
>
> Dear all:
>
> <chair hat off>
>
> Yesterday at the LPWAN WG meeting in Chicago, we discussed the possibi= lity
> to split the fragmentation piece off the SHCH/IP document - we also > discussed splitting the framework piece but quickly dismissed that, se= e
> the minutes to be published soon.
>
> Here are some arguments in favor of splitting:
> - the fragment piece is a sublayer below IP in order to enable IP, but= it
> is not IP
> - the mechanisms involved are completely different, the fragmentation = has
> very basic rules. Splitting the docs improves the clarity of what is > needed for what.
> - the expectations on the network are different e.g. fragmentation
> requires in-order delivery, IP requires 1280 MTU.
> - which relates to the fact that the backend device that handles the > fragmentation may be different (e.g. the fragmentation could be done a= t
> the NS as opposed to SCHC/IP and CoAP that could be run in some MEC or=
> cloud location)
>
> And then there are reasons related to the standardization process. Put= ting
> it all together like we did with RFC 4944 can probably be seen as a > mistake with the historical perspective that we have now. With the spl= it:
> - going through the review process would be streamlined; we have a ver= y
> constrained agenda
> - maintenance of the docs for future revision / deprecation would be > easier, either updating one or the others.
>
> With this in mind, I encourage the split...
>
> <chair hat on>
>
> but would like to hear about reasons not to split before we make a
> decision.
>
> Take care,
>
> Pascal
>
> _______________________________________________
> lp-wan mailing list
> lp-wan@ietf.org
> https://www.ietf.org/mailman/listinfo/lp-wan
>
> _______________________________________________
> lp-wan mailing list
> lp-wan@ietf.org
> https://www.ietf.org/mailman/listinfo/lp-wan
>


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--001a113e39ceffdcb5054c53a3ac-- From nobody Tue Apr 4 02:12:31 2017 Return-Path: X-Original-To: lp-wan@ietfa.amsl.com Delivered-To: lp-wan@ietfa.amsl.com Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id 1F049126BFD for ; Tue, 4 Apr 2017 02:12:30 -0700 (PDT) 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=-1.9, RCVD_IN_DNSWL_LOW=-0.7, URIBL_BLOCKED=0.001] autolearn=ham autolearn_force=no Received: from mail.ietf.org ([4.31.198.44]) by localhost (ietfa.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id tz4j4e_ytTXx for ; Tue, 4 Apr 2017 02:12:28 -0700 (PDT) Received: from relay4-d.mail.gandi.net (relay4-d.mail.gandi.net [IPv6:2001:4b98:c:538::196]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by ietfa.amsl.com (Postfix) with ESMTPS id E80461273B1 for ; Tue, 4 Apr 2017 02:12:27 -0700 (PDT) Received: from [IPv6:2001:660:7301:3728:6dd5:9ce3:6ab0:b933] (unknown [IPv6:2001:660:7301:3728:6dd5:9ce3:6ab0:b933]) (Authenticated sender: alex@ackl.io) by relay4-d.mail.gandi.net (Postfix) with ESMTPSA id 68AFC1720E7 for ; Tue, 4 Apr 2017 11:12:22 +0200 (CEST) From: Alexander Pelov Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: quoted-printable Mime-Version: 1.0 (Mac OS X Mail 10.2 \(3259\)) Message-Id: Date: Tue, 4 Apr 2017 11:12:18 +0200 To: lp-wan X-Mailer: Apple Mail (2.3259) Archived-At: Subject: [lp-wan] Minutes from IETF 98 meeting X-BeenThere: lp-wan@ietf.org X-Mailman-Version: 2.1.22 Precedence: list List-Id: "Low-Power Wide Area Networking \(LP-WAN\), also known as LPWA or Low-Rate WAN \(LR-WAN\)" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 04 Apr 2017 09:12:30 -0000 Dear all, The minutes from our meeting are now online on the Datatracker: = https://datatracker.ietf.org/doc/minutes-98-lpwan/ Many thanks to the notetakers and the jabber scribes without who all = this would not have been possible! Best, Pascal and Alexander From nobody Tue Apr 4 05:58:14 2017 Return-Path: X-Original-To: lp-wan@ietfa.amsl.com Delivered-To: lp-wan@ietfa.amsl.com Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id 798391296B3 for ; Tue, 4 Apr 2017 05:58:13 -0700 (PDT) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -4.2 X-Spam-Level: X-Spam-Status: No, score=-4.2 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, RCVD_IN_DNSWL_MED=-2.3] autolearn=ham autolearn_force=no Received: from mail.ietf.org ([4.31.198.44]) by localhost (ietfa.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id dVdjwod0iMpC for ; Tue, 4 Apr 2017 05:58:11 -0700 (PDT) Received: from violet.upc.es (violet.upc.es [147.83.2.51]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by ietfa.amsl.com (Postfix) with ESMTPS id 421AF129697 for ; Tue, 4 Apr 2017 05:58:04 -0700 (PDT) Received: from entelserver.upc.edu (entelserver.upc.es [147.83.39.4]) by violet.upc.es (8.14.4/8.14.4/Debian-4.1ubuntu1) with ESMTP id v34CvwFw013065; Tue, 4 Apr 2017 14:57:59 +0200 Received: from webmail.entel.upc.edu (webmail.entel.upc.edu [147.83.39.6]) by entelserver.upc.edu (Postfix) with ESMTP id 1AD771D53C1; Tue, 4 Apr 2017 14:57:58 +0200 (CEST) Received: from 10.193.109.182 by webmail.entel.upc.edu with HTTP; Tue, 4 Apr 2017 14:57:54 +0200 Message-ID: <17184101f54b09fc92f25eca2109e64c.squirrel@webmail.entel.upc.edu> In-Reply-To: References: , <9e491cb3e8ee55700e2237676a60d1ad.squirrel@webmail.entel.upc.edu> Date: Tue, 4 Apr 2017 14:57:54 +0200 From: "Carles Gomez Montenegro" To: "Pascal Thubert (pthubert)" Cc: "lp-wan" User-Agent: SquirrelMail/1.4.21-1.fc14 MIME-Version: 1.0 Content-Type: text/plain;charset=iso-8859-1 Content-Transfer-Encoding: 8bit X-Priority: 3 (Normal) Importance: Normal X-Virus-Scanned: clamav-milter 0.99.2 at violet X-Virus-Status: Clean X-Greylist: IP, sender and recipient auto-whitelisted, not delayed by milter-greylist-4.3.9 (violet.upc.es [147.83.2.51]); Tue, 04 Apr 2017 14:57:59 +0200 (CEST) Archived-At: Subject: Re: [lp-wan] comments on the LPWAN fragmentation X-BeenThere: lp-wan@ietf.org X-Mailman-Version: 2.1.22 Precedence: list List-Id: "Low-Power Wide Area Networking \(LP-WAN\), also known as LPWA or Low-Rate WAN \(LR-WAN\)" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 04 Apr 2017 12:58:13 -0000 Hi Pascal, > I agree that rule is can do the trick in both directions. OK! > I do not follow you, though, on the > Problem with all zeros ack: The receiving device can only answer > positively once it has received something so a positive response must have > a bit set in it. Yes, my previous text was a bit rushed, but I think Ivaylo's example is good to illustrate what I was trying to say. In any case, yes, some Rule ID space will need to be used for this purpose (in any direction). Thanks, (and thanks Ivaylo!), Carles From nobody Tue Apr 4 06:23:52 2017 Return-Path: X-Original-To: lp-wan@ietfa.amsl.com Delivered-To: lp-wan@ietfa.amsl.com Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id 9D601127601 for ; Tue, 4 Apr 2017 06:23:50 -0700 (PDT) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -14.523 X-Spam-Level: X-Spam-Status: No, score=-14.523 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, RCVD_IN_DNSWL_HI=-5, RCVD_IN_MSPIKE_H3=-0.01, RCVD_IN_MSPIKE_WL=-0.01, RP_MATCHES_RCVD=-0.001, SPF_HELO_PASS=-0.001, SPF_PASS=-0.001, USER_IN_DEF_DKIM_WL=-7.5] autolearn=unavailable autolearn_force=no Authentication-Results: ietfa.amsl.com (amavisd-new); dkim=pass (1024-bit key) header.d=cisco.com Received: from mail.ietf.org ([4.31.198.44]) by localhost (ietfa.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id GI20yAZaebEP for ; Tue, 4 Apr 2017 06:23:49 -0700 (PDT) Received: from alln-iport-2.cisco.com (alln-iport-2.cisco.com [173.37.142.89]) (using TLSv1.2 with cipher DHE-RSA-SEED-SHA (128/128 bits)) (No client certificate requested) by ietfa.amsl.com (Postfix) with ESMTPS id CF5EC127599 for ; Tue, 4 Apr 2017 06:14:28 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=cisco.com; i=@cisco.com; l=1067; q=dns/txt; s=iport; t=1491311668; x=1492521268; h=from:to:cc:subject:date:message-id: content-transfer-encoding:mime-version; bh=4guLCbRijeN5NvfXnEqEJ8jTyMKAhPQLAyO4o6xVIdQ=; b=jPe6R3AwsphSJTaw/k83ZLn8UVhMyVHtV3gZuN57QMNxdI7j5t1U1ui6 GHWdDES6LEPZhNtVhna0ApdMgGbUML+8qPbO7ApXhD6jIHQdfuuDnFe9D DtfQxaQ1l/43pNnz1cfkhKviGGEkqRwGHCPorYWSCGZjGMdQt8NDwiFWN s=; X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: =?us-ascii?q?A0BYAgBJm+NY/4gNJK1cGwEBAQMBAQEJA?= =?us-ascii?q?QEBgykrgRJhjW6nLoIOhiKDPj8YAQIBAQEBAQEBax0LhhUSAYEAJgEEDg2KBrA?= =?us-ascii?q?0iloBAQEBAQEEAQEBAQEBIoZOjygFkCiMRQGSRpFFk3QBHziBBVsVhxqJA4ENA?= =?us-ascii?q?QEB?= X-IronPort-AV: E=Sophos;i="5.36,275,1486425600"; d="scan'208";a="403445896" Received: from alln-core-3.cisco.com ([173.36.13.136]) by alln-iport-2.cisco.com with ESMTP/TLS/DHE-RSA-AES256-SHA; 04 Apr 2017 13:14:28 +0000 Received: from XCH-RCD-002.cisco.com (xch-rcd-002.cisco.com [173.37.102.12]) by alln-core-3.cisco.com (8.14.5/8.14.5) with ESMTP id v34DES1S019080 (version=TLSv1/SSLv3 cipher=AES256-SHA bits=256 verify=FAIL); Tue, 4 Apr 2017 13:14:28 GMT Received: from xch-rcd-001.cisco.com (173.37.102.11) by XCH-RCD-002.cisco.com (173.37.102.12) with Microsoft SMTP Server (TLS) id 15.0.1210.3; Tue, 4 Apr 2017 08:14:27 -0500 Received: from xch-rcd-001.cisco.com ([173.37.102.11]) by XCH-RCD-001.cisco.com ([173.37.102.11]) with mapi id 15.00.1210.000; Tue, 4 Apr 2017 08:14:27 -0500 From: "Pascal Thubert (pthubert)" To: "draft-ietf-lpwan-ipv6-static-context-hc@tools.ietf.org" CC: lp-wan Thread-Topic: Interleaving packets between fragments Thread-Index: AdKtRR772Hu83I8/Sniwwt6g97e6ZA== Date: Tue, 4 Apr 2017 13:14:13 +0000 Deferred-Delivery: Tue, 4 Apr 2017 13:13:49 +0000 Message-ID: <8773d19f5e024fc98756c529a9b421d5@XCH-RCD-001.cisco.com> Accept-Language: fr-FR, en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: x-ms-exchange-transport-fromentityheader: Hosted x-originating-ip: [10.55.22.4] Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 Archived-At: Subject: [lp-wan] Interleaving packets between fragments X-BeenThere: lp-wan@ietf.org X-Mailman-Version: 2.1.22 Precedence: list List-Id: "Low-Power Wide Area Networking \(LP-WAN\), also known as LPWA or Low-Rate WAN \(LR-WAN\)" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 04 Apr 2017 13:23:51 -0000 Dear authors=A0: Considering the time it may take to send a large fragmented packet, do we w= ant to have provisions for interleaving a higher priority packet? If not: - we may have to abort a transmission when emergency occurs, that's bad bu= t simple to do. - As a result, a long frame in a busy environment may take a lot of energy = and never go through. There c/should be rules to abandon it, maybe make tha= t implementation dependent? If yes: - then we have to consider the consequences on running timers, which may ne= ed to be restarted, but not for ever, upon an interleaved packet. - can we interleave a fragmented frame? If so we need to define an optional= datagram-tag, probably together with the rule ID and the CFN. A datagram t= ag of 1 bit can be used as a flip flop to disambiguate some situations wher= e fragments of the next frame are confused with fragments of a previous fra= me. More bits would make it a frame identifier and could allow interleaving= of a few fragmented frames. What do you think? Pascal=20 From nobody Tue Apr 4 06:43:13 2017 Return-Path: X-Original-To: lp-wan@ietfa.amsl.com Delivered-To: lp-wan@ietfa.amsl.com Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id 1E51B1296A3 for ; Tue, 4 Apr 2017 06:43:12 -0700 (PDT) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -4.2 X-Spam-Level: X-Spam-Status: No, score=-4.2 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, RCVD_IN_DNSWL_MED=-2.3] autolearn=ham autolearn_force=no Received: from mail.ietf.org ([4.31.198.44]) by localhost (ietfa.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id 9o9r5ppk5HYH for ; Tue, 4 Apr 2017 06:43:10 -0700 (PDT) Received: from mailhost.informatik.uni-bremen.de (mailhost.informatik.uni-bremen.de [IPv6:2001:638:708:30c9::12]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by ietfa.amsl.com (Postfix) with ESMTPS id 879211294B5 for ; Tue, 4 Apr 2017 06:43:10 -0700 (PDT) X-Virus-Scanned: amavisd-new at informatik.uni-bremen.de Received: from submithost.informatik.uni-bremen.de (submithost.informatik.uni-bremen.de [134.102.201.11]) by mailhost.informatik.uni-bremen.de (8.14.5/8.14.5) with ESMTP id v34Dh3NC009274; Tue, 4 Apr 2017 15:43:03 +0200 (CEST) Received: from client-0226.vpn.uni-bremen.de (client-0226.vpn.uni-bremen.de [134.102.107.226]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by submithost.informatik.uni-bremen.de (Postfix) with ESMTPSA id 3vy9CW3Mr2zDHF8; Tue, 4 Apr 2017 15:43:03 +0200 (CEST) Content-Type: text/plain; charset=utf-8 Mime-Version: 1.0 (Mac OS X Mail 10.3 \(3273\)) From: Carsten Bormann In-Reply-To: <8773d19f5e024fc98756c529a9b421d5@XCH-RCD-001.cisco.com> Date: Tue, 4 Apr 2017 15:43:00 +0200 Cc: "draft-ietf-lpwan-ipv6-static-context-hc@tools.ietf.org" , lp-wan X-Mao-Original-Outgoing-Id: 513006179.896634-617f3ca8113e25654fd0a24e249b72a9 Content-Transfer-Encoding: quoted-printable Message-Id: <99DA1E7A-DBD8-4878-9085-5CCCC2C20333@tzi.org> References: <8773d19f5e024fc98756c529a9b421d5@XCH-RCD-001.cisco.com> To: Pascal Thubert X-Mailer: Apple Mail (2.3273) Archived-At: Subject: Re: [lp-wan] Interleaving packets between fragments X-BeenThere: lp-wan@ietf.org X-Mailman-Version: 2.1.22 Precedence: list List-Id: "Low-Power Wide Area Networking \(LP-WAN\), also known as LPWA or Low-Rate WAN \(LR-WAN\)" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 04 Apr 2017 13:43:12 -0000 Ha, shades of RFC2686. In a route-over situation, it is hard to imagine how to avoid = interleaving (a router may simply not have all fragments of packet 1 = when it gets packet 2 =E2=80=94 should it leave the link idle? How long = before it gives up?). In a star situation, where the sender is identical with the fragmenter, = this is easier to avoid. However, if latency is an issue, some = mechanism such as that in RFC2686 is needed (which simply used a 2-bit = or 4-bit class number to be able to stack transmission suspensions =E2=80=94= reordering does not happen in PPP). Gr=C3=BC=C3=9Fe, Carsten From nobody Tue Apr 4 10:08:52 2017 Return-Path: X-Original-To: lp-wan@ietfa.amsl.com Delivered-To: lp-wan@ietfa.amsl.com Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id 6DE071296F7 for ; Tue, 4 Apr 2017 10:08:41 -0700 (PDT) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -2.619 X-Spam-Level: X-Spam-Status: No, score=-2.619 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, RCVD_IN_DNSWL_LOW=-0.7, RCVD_IN_MSPIKE_H3=-0.01, RCVD_IN_MSPIKE_WL=-0.01, URIBL_BLOCKED=0.001] autolearn=ham autolearn_force=no Received: from mail.ietf.org ([4.31.198.44]) by localhost (ietfa.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id SLy3_v7TMmld for ; Tue, 4 Apr 2017 10:08:30 -0700 (PDT) Received: from relay4-d.mail.gandi.net (relay4-d.mail.gandi.net [217.70.183.196]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by ietfa.amsl.com (Postfix) with ESMTPS id CE18E129474 for ; Tue, 4 Apr 2017 10:08:23 -0700 (PDT) Received: from [IPv6:2001:660:7301:3728:f5b2:5204:dbf8:688c] (unknown [IPv6:2001:660:7301:3728:f5b2:5204:dbf8:688c]) (Authenticated sender: alex@ackl.io) by relay4-d.mail.gandi.net (Postfix) with ESMTPSA id 2407C17209F; Tue, 4 Apr 2017 19:08:21 +0200 (CEST) Content-Type: text/plain; charset=utf-8 Mime-Version: 1.0 (Mac OS X Mail 10.2 \(3259\)) From: Alexander Pelov In-Reply-To: <8773d19f5e024fc98756c529a9b421d5@XCH-RCD-001.cisco.com> Date: Tue, 4 Apr 2017 19:08:21 +0200 Cc: "draft-ietf-lpwan-ipv6-static-context-hc@tools.ietf.org" , lp-wan Content-Transfer-Encoding: quoted-printable Message-Id: <120C4A60-AF37-4D0F-ACC7-8FF47452708E@ackl.io> References: <8773d19f5e024fc98756c529a9b421d5@XCH-RCD-001.cisco.com> To: "Pascal Thubert (pthubert)" X-Mailer: Apple Mail (2.3259) Archived-At: Subject: Re: [lp-wan] Interleaving packets between fragments X-BeenThere: lp-wan@ietf.org X-Mailman-Version: 2.1.22 Precedence: list List-Id: "Low-Power Wide Area Networking \(LP-WAN\), also known as LPWA or Low-Rate WAN \(LR-WAN\)" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 04 Apr 2017 17:08:41 -0000 Dear authors,=20 I second the question that Pascal has raised. I see how it is not = trivial and I=E2=80=99d like to encourage you to keep in mind the LPWAN = characteristics when addressing the question. Some questions to = consider: - Can we realistically expect to have multiple parallel fragmented data = flows of the same type flowing through the same compressor, where the = compressor would be likely to decide to change in runtime the order?=20 - How do we abort a data flow that went bad? For example, the compressor = got restarted for some reason, and the end-device is waiting for some = fragment.. with valid MIC. Which would never arrive (as the compressor = doesn=E2=80=99t have the packets already sent to sent the appropriate = MIC). I think there is a case for an =C2=AB abort =C2=BB mechanism. This would be highly device-dependent, as you may have non-constrained = devices capable of handling multiple parallel transmissions, but in most = cases you=E2=80=99d be expected to have a single transmission. For = example, would it be possible to add an =C2=AB abort =C2=BB flag to the = fragmentation header for the last fragment? Then again, we=E2=80=99ll = need to add it to the ACK. Timers could be expensive to keep (not saying = that we should not expect them.. just that if we can do without them = that would be perfect), especially if we make them mandatory for the = fragmentation.=20 So, to sum up - if we can KISS it, I=E2=80=99m all for it.=20 Thanks, Pascal, for catching that! Best, Alexander > Le 4 avr. 2017 =C3=A0 15:14, Pascal Thubert (pthubert) = a =C3=A9crit : >=20 > Dear authors : >=20 > Considering the time it may take to send a large fragmented packet, do = we want to have provisions for interleaving a higher priority packet? >=20 > If not: > - we may have to abort a transmission when emergency occurs, that's = bad but simple to do. > - As a result, a long frame in a busy environment may take a lot of = energy and never go through. There c/should be rules to abandon it, = maybe make that implementation dependent? >=20 > If yes: > - then we have to consider the consequences on running timers, which = may need to be restarted, but not for ever, upon an interleaved packet. > - can we interleave a fragmented frame? If so we need to define an = optional datagram-tag, probably together with the rule ID and the CFN. A = datagram tag of 1 bit can be used as a flip flop to disambiguate some = situations where fragments of the next frame are confused with fragments = of a previous frame. More bits would make it a frame identifier and = could allow interleaving of a few fragmented frames. >=20 > What do you think? >=20 > Pascal=20 >=20 > _______________________________________________ > lp-wan mailing list > lp-wan@ietf.org > https://www.ietf.org/mailman/listinfo/lp-wan From nobody Wed Apr 5 03:39:12 2017 Return-Path: X-Original-To: lp-wan@ietfa.amsl.com Delivered-To: lp-wan@ietfa.amsl.com Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id 67CBE129462 for ; Wed, 5 Apr 2017 03:39:10 -0700 (PDT) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -2.401 X-Spam-Level: X-Spam-Status: No, score=-2.401 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, FREEMAIL_FORGED_FROMDOMAIN=0.197, FREEMAIL_FROM=0.001, HEADER_FROM_DIFFERENT_DOMAINS=0.001, HTML_MESSAGE=0.001, RCVD_IN_DNSWL_LOW=-0.7, SPF_PASS=-0.001] autolearn=ham autolearn_force=no Authentication-Results: ietfa.amsl.com (amavisd-new); dkim=pass (2048-bit key) header.d=gmail.com Received: from mail.ietf.org ([4.31.198.44]) by localhost (ietfa.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id Y3XmBuI3D24O for ; Wed, 5 Apr 2017 03:39:08 -0700 (PDT) Received: from mail-oi0-x230.google.com (mail-oi0-x230.google.com [IPv6:2607:f8b0:4003:c06::230]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by ietfa.amsl.com (Postfix) with ESMTPS id 619D31242F7 for ; Wed, 5 Apr 2017 03:39:05 -0700 (PDT) Received: by mail-oi0-x230.google.com with SMTP id d2so10138854oig.1 for ; Wed, 05 Apr 2017 03:39:05 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=mime-version:sender:in-reply-to:references:from:date:message-id :subject:to:cc; bh=ZH4/LM3fjKd4ngKOCeUOgkirf1G7YlqltvmzNVRFLIQ=; b=l62vbyb+LYLaorbZQywp8KEsNWsyTZVtvLZfWuMes0c9KLgBeq+8PsDiSCA/23FkQM f2QdvIuOXzx8JSuqwkmrk0FqDUceTGmGOJ3xOZAcFvh3qYWL9uab+Y6N5pKD6ooRavej OINH1l55DFGYNp+e6XYffTUkoTImVVL05vdewG1msc8v5iuFy3N4qW0yeSCtDlyquHF0 E6qWzaaAIC2s25dcGdQ7eBkPTLzhLpEtHfhskLKZud2vs8n5V+NsNYm/k10H9j7dxAuJ B1xs7+meDvb2vlknIGtZrluk8FVloXaxBnFSkEt9+6n+mTbERU9XVdqWF7zCqClLsCHD Mh/Q== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:sender:in-reply-to:references:from :date:message-id:subject:to:cc; bh=ZH4/LM3fjKd4ngKOCeUOgkirf1G7YlqltvmzNVRFLIQ=; b=sikIsGMd1GzJlVrKrXBY4VSdjGYPqEjDcqTVNY8G9pXawr6nwIIxMu+M6m4M4vchYZ +leCDzBVtmTLIUk9KvsuKEjJdDl6JHIDCaBcTM6d58vNi1QjBmmYC7TAUb3a+E0PenXT x3lz08Q+CyCvydW6AZWWLlzMKL7DKH8bx69AnjDtOY04s42ny12J/5tp84g9PZHLknvu kriiqxE0lpmH9btZB0t7gHBZLWz06wzHaykiPxLu7FtsQ/SA38szvleHrmgH7yKlYG2E 6ubpUpL7HUb4VOQMGE3M+4jmFVLGjpqNL3kRSWlDTvkrkxLgxIaPNFpu0A8bFr0IQdVQ qGbg== X-Gm-Message-State: AFeK/H0BN6/87nnd3g6NezsxthKgEkXG33d8HmjO1GmfcfoNwes8GBy7R5te1EmDcELLcFc9DZub86IZkct/fA== X-Received: by 10.157.42.165 with SMTP id e34mr14247694otb.120.1491388744709; Wed, 05 Apr 2017 03:39:04 -0700 (PDT) MIME-Version: 1.0 Sender: anaminaburo@gmail.com Received: by 10.202.102.36 with HTTP; Wed, 5 Apr 2017 03:38:44 -0700 (PDT) In-Reply-To: <17184101f54b09fc92f25eca2109e64c.squirrel@webmail.entel.upc.edu> References: <9e491cb3e8ee55700e2237676a60d1ad.squirrel@webmail.entel.upc.edu> <17184101f54b09fc92f25eca2109e64c.squirrel@webmail.entel.upc.edu> From: Ana Minaburo Date: Wed, 5 Apr 2017 12:38:44 +0200 X-Google-Sender-Auth: axzr2s8h6W-5NvWNy9TN5oJkpJI Message-ID: To: Carles Gomez Montenegro Cc: "Pascal Thubert (pthubert)" , lp-wan Content-Type: multipart/alternative; boundary=94eb2c11f01459bcb3054c6900b3 Archived-At: Subject: Re: [lp-wan] comments on the LPWAN fragmentation X-BeenThere: lp-wan@ietf.org X-Mailman-Version: 2.1.22 Precedence: list List-Id: "Low-Power Wide Area Networking \(LP-WAN\), also known as LPWA or Low-Rate WAN \(LR-WAN\)" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 05 Apr 2017 10:39:10 -0000 --94eb2c11f01459bcb3054c6900b3 Content-Type: text/plain; charset=UTF-8 Hello, Do you mean an Abort-ACK with a Rule-ID that means Abort? Ana On Tue, Apr 4, 2017 at 2:57 PM, Carles Gomez Montenegro < carlesgo@entel.upc.edu> wrote: > Hi Pascal, > > > I agree that rule is can do the trick in both directions. > > OK! > > > I do not follow you, though, on the > > Problem with all zeros ack: The receiving device can only answer > > positively once it has received something so a positive response must > have > > a bit set in it. > > Yes, my previous text was a bit rushed, but I think Ivaylo's example is > good to illustrate what I was trying to say. > > In any case, yes, some Rule ID space will need to be used for this purpose > (in any direction). > > Thanks, (and thanks Ivaylo!), > > Carles > > _______________________________________________ > lp-wan mailing list > lp-wan@ietf.org > https://www.ietf.org/mailman/listinfo/lp-wan > --94eb2c11f01459bcb3054c6900b3 Content-Type: text/html; charset=UTF-8 Content-Transfer-Encoding: quoted-printable
Hello,

Do you mean an Abort-ACK with a = Rule-ID that means Abort?

Ana

On Tue, Apr 4, 2017 at 2:57= PM, Carles Gomez Montenegro <carlesgo@entel.upc.edu> w= rote:
Hi Pascal,

> I agree that rule is can do the trick in both directions.

OK!

>=C2=A0 I do not follow you, though, on the
> Problem with all zeros ack: The receiving device can only answer
> positively once it has received something so a positive response must = have
> a bit set in it.

Yes, my previous text was a bit rushed, but I think Ivaylo's exa= mple is
good to illustrate what I was trying to say.

In any case, yes, some Rule ID space will need to be used for this purpose<= br> (in any direction).

Thanks, (and thanks Ivaylo!),

Carles

_______________________________________________
lp-wan mailing list
lp-wan@ietf.org
https://www.ietf.org/mailman/listinfo/lp-wan

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X19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fPGJyPg0KbHAtd2FuIG1h aWxpbmcgbGlzdDxicj4NCjxhIGhyZWY9Im1haWx0bzpscC13YW5AaWV0Zi5vcmciPmxwLXdhbkBp ZXRmLm9yZzwvYT48YnI+DQo8YSBocmVmPSJodHRwczovL3d3dy5pZXRmLm9yZy9tYWlsbWFuL2xp c3RpbmZvL2xwLXdhbiIgdGFyZ2V0PSJfYmxhbmsiPmh0dHBzOi8vd3d3LmlldGYub3JnL21haWxt YW4vbGlzdGluZm8vbHAtd2FuPC9hPjxvOnA+PC9vOnA+PC9wPg0KPC9kaXY+DQo8L2Rpdj4NCjwv YmxvY2txdW90ZT4NCjwvZGl2Pg0KPHAgY2xhc3M9Ik1zb05vcm1hbCIgc3R5bGU9Im1hcmdpbi1s ZWZ0OjM2LjBwdCI+PG86cD4mbmJzcDs8L286cD48L3A+DQo8L2Rpdj4NCjwvZGl2Pg0KPC9kaXY+ DQo8L2Rpdj4NCjwvYm9keT4NCjwvaHRtbD4NCg== --_000_2779d3b807db4dc39782f584ef071f00XCHRCD001ciscocom_-- From nobody Mon Apr 10 07:14:05 2017 Return-Path: X-Original-To: lp-wan@ietf.org Delivered-To: lp-wan@ietfa.amsl.com Received: from ietfa.amsl.com (localhost [IPv6:::1]) by ietfa.amsl.com (Postfix) with ESMTP id 97790129501; Mon, 10 Apr 2017 07:14:02 -0700 (PDT) MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit From: IESG Secretary To: "IETF-Announce" Cc: lp-wan@ietf.org X-Test-IDTracker: no X-IETF-IDTracker: 6.49.0 Auto-Submitted: auto-generated Precedence: bulk Message-ID: <149183364258.3192.4632986842054296141@ietfa.amsl.com> Date: Mon, 10 Apr 2017 07:14:02 -0700 Archived-At: Subject: [lp-wan] IPv6 over Low Power Wide-Area Networks (lpwan) WG Virtual Meeting: 2017-04-26 X-BeenThere: lp-wan@ietf.org X-Mailman-Version: 2.1.22 List-Id: "Low-Power Wide Area Networking \(LP-WAN\), also known as LPWA or Low-Rate WAN \(LR-WAN\)" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 10 Apr 2017 14:14:03 -0000 The IPv6 over Low Power Wide-Area Networks (lpwan) Working Group will hold a virtual interim meeting on 2017-04-26 from 16:00 to 17:00 Europe/Paris. Agenda: The meeting agenda will be adjusted with appropriate information before the meeting (1 week before the meeting at the latest). The general topics will include presentations and discussions on updates / reviews / implementation feedback on the WG documents. - SCHC IP/UDP draft update from IETF98 meeting ( draft-ietf-lpwan-ipv6-static-context-hc-02 ) - SCHC CoAP draft update from IETF98 meeting ( draft-ietf-lpwan-coap-static-context-hc-01 ) - LPWAN Overview document update from IETF98 meeting ( draft-ietf-lpwan-overview-01 ) ---------------------- Information on joining the meeting: JOIN WEBEX MEETING https://cisco.webex.com/ciscosales/j.php?MTID=me7f536292c568c696a054a7ff7ef0746 Meeting number (access code): 203 453 401 Meeting password: chicalors (24422567 from phones) JOIN FROM A VIDEO SYSTEM OR APPLICATION Dial sip:203453401@cisco.webex.com >From the Cisco internal network, dial *267* and the 9-digit meeting number. If you are the host, enter your PIN when prompted. JOIN BY PHONE +1-866-432-9903 Call-in toll-free number (US/Canada) +1-408-525-6800 Call-in toll number (US/Canada) Global call-in numbers: https://cisco.webex.com/ciscosales/globalcallin.php?serviceType=MC&ED=370387747&tollFree=1 Toll-free dialing restrictions: https://www.webex.com/pdf/tollfree_restrictions.pdf Can't join the meeting? https://help.webex.com/docs/DOC-5412 Information about remote participation: https://cisco.webex.com/ciscosales/j.php?MTID=me7f536292c568c696a054a7ff7ef0746 (see Agenda for password/details how to join) From nobody Mon Apr 10 09:23:57 2017 Return-Path: X-Original-To: lp-wan@ietfa.amsl.com Delivered-To: lp-wan@ietfa.amsl.com Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id CFC87129666 for ; Mon, 10 Apr 2017 09:23:52 -0700 (PDT) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: 1.584 X-Spam-Level: * X-Spam-Status: No, score=1.584 tagged_above=-999 required=5 tests=[BAYES_50=0.8, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, FORGED_HOTMAIL_RCVD2=0.874, FREEMAIL_FROM=0.001, HTML_MESSAGE=0.001, RCVD_IN_DNSWL_NONE=-0.0001, SPF_HELO_PASS=-0.001, SPF_PASS=-0.001, T_KAM_HTML_FONT_INVALID=0.01] autolearn=no autolearn_force=no Authentication-Results: ietfa.amsl.com (amavisd-new); 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H:CY4PR12MB1800.namprd12.prod.outlook.com; FPR:; SPF:None; LANG:en; x-ms-office365-filtering-correlation-id: 6878f331-89c5-4aae-7e4f-08d4802df55e x-microsoft-antispam: UriScan:; BCL:0; PCL:0; RULEID:(22001)(201702061074)(5061506573)(5061507331)(1603103135)(2017031320274)(2017031324274)(2017031323274)(2017031322274)(1603101448)(1601125374)(1701031045); SRVR:CY1NAM02HT039; x-exchange-antispam-report-cfa-test: BCL:0; PCL:0; RULEID:(444000031); SRVR:CY1NAM02HT039; BCL:0; PCL:0; RULEID:; SRVR:CY1NAM02HT039; x-forefront-prvs: 027367F73D spamdiagnosticoutput: 1:99 spamdiagnosticmetadata: NSPM Content-Type: multipart/alternative; boundary="_000_CY4PR12MB1800EB60AFF2BC6E0B054BABD9010CY4PR12MB1800namp_" MIME-Version: 1.0 X-OriginatorOrg: hotmail.com X-MS-Exchange-CrossTenant-originalarrivaltime: 10 Apr 2017 16:23:44.3325 (UTC) X-MS-Exchange-CrossTenant-fromentityheader: Internet X-MS-Exchange-CrossTenant-id: 84df9e7f-e9f6-40af-b435-aaaaaaaaaaaa X-MS-Exchange-Transport-CrossTenantHeadersStamped: CY1NAM02HT039 Archived-At: Subject: [lp-wan] Place of the position value for CoAP options (SCHC) X-BeenThere: lp-wan@ietf.org X-Mailman-Version: 2.1.22 Precedence: list List-Id: "Low-Power Wide Area Networking \(LP-WAN\), also known as LPWA or Low-Rate WAN \(LR-WAN\)" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 10 Apr 2017 16:23:53 -0000 --_000_CY4PR12MB1800EB60AFF2BC6E0B054BABD9010CY4PR12MB1800namp_ Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Dear all, I am currently working on an implementation for SCHC of IPv6/UDP/CoAP over = LoRaWAN following the drafts "draft-ietf-lpwan-ipv6-static-context-hc-02" a= nd "draft-ietf-lpwan-coap-static-context-hc-01". While working on the implementation it occurred to me that it might be good= to consider taking the position value added in the Matching Operator for t= he CoAP options and put it directly in the Field ID. My main reason for thi= nking this comes from the way the compressor/decompressor I have implemente= d works and how this change simplifies the coding. There are two main reasons why the code gets more complicated and these are= the following: In the implementation made in a LoPy, the rules are stored in dictionaries = (Python) and there cannot be two keys with the same name in a dictionary (t= his is the same thing for objects in Javascript), so for a start the FID of= repeatable options must have different names. The other reason is that if the FID is the same for repeatable options, onc= e the Matching Operator has been matched for that field in a rule, each pos= ition for that option must also be treated in a different way and this adds= complexity to the processes of compression/decompression. While, on the ot= her hand, if each FID is different for repeatable options these fields can = be treated as completely different fields with no relation to other appeara= nces of the same option and no extra operations should be carried out. Finally, I also get the feeling that it gives a clearer conceptions for the= use of the position value. Regards, Philippe Clavier --_000_CY4PR12MB1800EB60AFF2BC6E0B054BABD9010CY4PR12MB1800namp_ Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable

Dear all,


I am currently= working on an implementation for SCHC of IPv6/UDP/CoAP over LoRaWAN following the drafts "draft= -ietf-lpwan-ipv6-static-context-hc-02" and "draft-ietf-lpwan-coap-static-context-hc-01".


While working on the implementation it occurred to me that it might be good to consider taking the position va= lue added in the Matching Operator for the CoAP options and put it directly= in the Field ID. My main reason for thinking this comes from the way the c= ompressor/decompressor I have implemented works and how  this change simplifies  the coding.


There are two main reasons why the code gets more complicated and these are= the following:

In the implementation made in a LoPy, the rules are stored in dictionaries (Python) and there cannot be tw= o keys with the same name in a dictionary (this is the same thing for objec= ts in Javascript), so for a start the FID of repeatable options must have d= ifferent names.

The other reason is that if the FID is the same for repeatable options, once the Matching Operator has bee= n matched for that field in a rule, each position for that option must also= be treated in a different way and this adds complexity to the processes of= compression/decompression. While, on the other hand, if each FID is different for repeatable options the= se fields can be treated as completely different fields with no relation to other appearances of the same option = and no extra operations should be carried out.

Finally, I also get the feeling that it gives a clearer conceptions for the use of the position value.


Regards,

Philippe Clavier


  &nb= sp;

--_000_CY4PR12MB1800EB60AFF2BC6E0B054BABD9010CY4PR12MB1800namp_-- From nobody Wed Apr 12 06:27:59 2017 Return-Path: X-Original-To: lp-wan@ietfa.amsl.com Delivered-To: lp-wan@ietfa.amsl.com Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id 13526129B20 for ; Wed, 12 Apr 2017 06:27:58 -0700 (PDT) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -2.119 X-Spam-Level: X-Spam-Status: No, score=-2.119 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, HTML_MESSAGE=0.001, RCVD_IN_DNSWL_LOW=-0.7, RCVD_IN_MSPIKE_H3=-0.01, RCVD_IN_MSPIKE_WL=-0.01, RCVD_IN_SORBS_SPAM=0.5] autolearn=ham autolearn_force=no Received: from mail.ietf.org ([4.31.198.44]) by localhost (ietfa.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id D0v32h-LNv-z for ; Wed, 12 Apr 2017 06:27:55 -0700 (PDT) Received: from relay2-d.mail.gandi.net (relay2-d.mail.gandi.net [217.70.183.194]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by ietfa.amsl.com (Postfix) with ESMTPS id 925AF129B2D for ; Wed, 12 Apr 2017 06:27:54 -0700 (PDT) Received: from mfilter31-d.gandi.net (mfilter31-d.gandi.net [217.70.178.162]) by relay2-d.mail.gandi.net (Postfix) with ESMTP id 10363C5A84; Wed, 12 Apr 2017 15:27:52 +0200 (CEST) X-Virus-Scanned: Debian amavisd-new at mfilter31-d.gandi.net Received: from relay2-d.mail.gandi.net ([IPv6:::ffff:217.70.183.194]) by mfilter31-d.gandi.net (mfilter31-d.gandi.net [::ffff:10.0.15.180]) (amavisd-new, port 10024) with ESMTP id z4p-n7v-nVm9; Wed, 12 Apr 2017 15:27:49 +0200 (CEST) X-Originating-IP: 192.44.77.204 Received: from el-meco.rennes.enst-bretagne.fr (nat-asr-incub-b204.rennes.enst-bretagne.fr [192.44.77.204]) (Authenticated sender: ana@ackl.io) by relay2-d.mail.gandi.net (Postfix) with ESMTPSA id 2BC7DC5A74; Wed, 12 Apr 2017 15:27:48 +0200 (CEST) Content-Type: multipart/alternative; boundary="Apple-Mail=_FE0C13FA-9EEC-4C32-A0BC-1CD626D0D8ED" Mime-Version: 1.0 (Mac OS X Mail 9.3 \(3124\)) From: Ana Minaburo In-Reply-To: <2779d3b807db4dc39782f584ef071f00@XCH-RCD-001.cisco.com> Date: Wed, 12 Apr 2017 15:27:51 +0200 Cc: Ana Minaburo , Carles Gomez Montenegro , lp-wan Message-Id: References: <9e491cb3e8ee55700e2237676a60d1ad.squirrel@webmail.entel.upc.edu> <17184101f54b09fc92f25eca2109e64c.squirrel@webmail.entel.upc.edu> <2779d3b807db4dc39782f584ef071f00@XCH-RCD-001.cisco.com> To: "Pascal Thubert (pthubert)" X-Mailer: Apple Mail (2.3124) Archived-At: Subject: Re: [lp-wan] comments on the LPWAN fragmentation X-BeenThere: lp-wan@ietf.org X-Mailman-Version: 2.1.22 Precedence: list List-Id: "Low-Power Wide Area Networking \(LP-WAN\), also known as LPWA or Low-Rate WAN \(LR-WAN\)" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 12 Apr 2017 13:27:58 -0000 --Apple-Mail=_FE0C13FA-9EEC-4C32-A0BC-1CD626D0D8ED Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset=utf-8 Hello, I=E2=80=99m agree about this abort-ruleID, for instance we need to = define the structure of this context rule and we need to define the = specific rule-ID to be used.=20 It could be a generic abort rule to be used in any protocol?=20 Ana > On 05 Apr 2017, at 13:51, Pascal Thubert (pthubert) = wrote: >=20 > Hello Ana : > =20 > The rule can be abort, and can be triggered by both sides = asynchronously, though maybe it takes a packet in to be able to send a = packet out so one side may not be able to transmit it at any time it = wants (e.g. in case of time out it may have to wait some additional = time). > Like other messages, we may want an abort-ack, or not, depending if = the device has something useful to do with the confirm. I suggest that = the abort rule is followed by fields that indicate what the error is, = the datagram tag if there is one, and whether it is an ack. > =20 > I=E2=80=99m wondering is the CoAP piece also needs abort? > =20 > Take care, > =20 > Pascal > =20 > =20 > =20 > From: anaminaburo@gmail.com [mailto:anaminaburo@gmail.com] On Behalf = Of Ana Minaburo > Sent: mercredi 5 avril 2017 12:39 > To: Carles Gomez Montenegro > Cc: Pascal Thubert (pthubert) ; lp-wan = > Subject: Re: [lp-wan] comments on the LPWAN fragmentation > =20 > Hello, > =20 > Do you mean an Abort-ACK with a Rule-ID that means Abort? > =20 > Ana > =20 > On Tue, Apr 4, 2017 at 2:57 PM, Carles Gomez Montenegro = > wrote: > Hi Pascal, >=20 > > I agree that rule is can do the trick in both directions. >=20 > OK! >=20 > > I do not follow you, though, on the > > Problem with all zeros ack: The receiving device can only answer > > positively once it has received something so a positive response = must have > > a bit set in it. >=20 > Yes, my previous text was a bit rushed, but I think Ivaylo's example = is > good to illustrate what I was trying to say. >=20 > In any case, yes, some Rule ID space will need to be used for this = purpose > (in any direction). >=20 > Thanks, (and thanks Ivaylo!), >=20 > Carles >=20 > _______________________________________________ > lp-wan mailing list > lp-wan@ietf.org > https://www.ietf.org/mailman/listinfo/lp-wan = > =20 > _______________________________________________ > lp-wan mailing list > lp-wan@ietf.org > https://www.ietf.org/mailman/listinfo/lp-wan --Apple-Mail=_FE0C13FA-9EEC-4C32-A0BC-1CD626D0D8ED Content-Transfer-Encoding: quoted-printable Content-Type: text/html; charset=utf-8 Hello,

I=E2=80=99m agree about this abort-ruleID, for instance we = need to define the structure of this context rule and we need to define = the specific rule-ID to be used. 

It could be a generic abort rule to be = used in any protocol? 

Ana

On 05 Apr 2017, at 13:51, = Pascal Thubert (pthubert) <pthubert@cisco.com> wrote:

Hello Ana :
 
The rule can be abort, = and can be triggered by both sides asynchronously, though maybe it takes = a packet in to be able to send a packet out so one side may not be able = to transmit it at any time it wants (e.g. in case of time out it may = have to wait some additional time).
Like other messages, we may want an abort-ack, or not, = depending if the device has something useful to do with the confirm. I = suggest that the abort rule is followed by fields that indicate what the = error is, the datagram tag if there is one, and whether it is an = ack.
 
I=E2=80=99m wondering = is the CoAP piece also needs abort?
 
Take care,
 
Pascal
 
 
 
From: anaminaburo@gmail.com= [mailto:anaminaburo@gmail.com] On Behalf = Of Ana Minaburo
Sent: mercredi 5 avril 2017 = 12:39
To: Carles Gomez Montenegro = <carlesgo@entel.upc.edu>
Cc: Pascal Thubert (pthubert) = <pthubert@cisco.com>; lp-wan <lp-wan@ietf.org>
Subject: Re: [lp-wan] comments on = the LPWAN fragmentation
 
Hello,
 
Do you mean an Abort-ACK with a Rule-ID that means = Abort?
 
Ana
 
On Tue, Apr 4, 2017 at 2:57 PM, Carles Gomez = Montenegro <carlesgo@entel.upc.edu> wrote:
Hi Pascal,

> I agree that rule is can do the trick in both = directions.

OK!

>  I do not follow you, though, on the
> Problem with all zeros ack: The receiving device can = only answer
> positively once it has received something = so a positive response must have
> a bit set in it.

Yes, my previous text was a bit rushed, but I = think Ivaylo's example is
good to illustrate what I was = trying to say.

In any case, yes, some Rule = ID space will need to be used for this purpose
(in any = direction).

Thanks, (and thanks = Ivaylo!),

Carles

_______________________________________________
lp-wan mailing list
lp-wan@ietf.org
https://www.ietf.org/mailman/listinfo/lp-wan
 
_______________________________________________
lp-wan mailing = list
lp-wan@ietf.org
https://www.ietf.org/mailman/listinfo/lp-wan

= --Apple-Mail=_FE0C13FA-9EEC-4C32-A0BC-1CD626D0D8ED-- From nobody Wed Apr 12 06:46:10 2017 Return-Path: X-Original-To: lp-wan@ietfa.amsl.com Delivered-To: lp-wan@ietfa.amsl.com Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id 684911294A9 for ; Wed, 12 Apr 2017 06:46:08 -0700 (PDT) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -1.09 X-Spam-Level: X-Spam-Status: No, score=-1.09 tagged_above=-999 required=5 tests=[BAYES_50=0.8, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, HTML_MESSAGE=0.001, RCVD_IN_DNSWL_MED=-2.3, RCVD_IN_SORBS_SPAM=0.5, SPF_PASS=-0.001, T_KAM_HTML_FONT_INVALID=0.01] autolearn=ham autolearn_force=no Authentication-Results: ietfa.amsl.com (amavisd-new); dkim=pass (1024-bit key) header.d=imt-atlantique.fr Received: from mail.ietf.org ([4.31.198.44]) by localhost (ietfa.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id pJHvHTuX0mYU for ; Wed, 12 Apr 2017 06:46:05 -0700 (PDT) Received: from zproxy220.enst-bretagne.fr (zproxy220.enst-bretagne.fr [192.108.117.9]) by ietfa.amsl.com (Postfix) with ESMTP id 6FD67128799 for ; Wed, 12 Apr 2017 06:46:04 -0700 (PDT) Received: from localhost (localhost [127.0.0.1]) by zproxy220.enst-bretagne.fr (Postfix) with ESMTP id 1A28830222 for ; Wed, 12 Apr 2017 15:46:04 +0200 (CEST) Received: from zproxy220.enst-bretagne.fr ([127.0.0.1]) by localhost (zproxy220.enst-bretagne.fr [127.0.0.1]) (amavisd-new, port 10032) with ESMTP id AS589lyGtLkN for ; Wed, 12 Apr 2017 15:46:03 +0200 (CEST) Received: from localhost (localhost [127.0.0.1]) by zproxy220.enst-bretagne.fr (Postfix) with ESMTP id 615C230269 for ; Wed, 12 Apr 2017 15:46:03 +0200 (CEST) DKIM-Filter: OpenDKIM Filter v2.9.2 zproxy220.enst-bretagne.fr 615C230269 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=imt-atlantique.fr; s=50EA75E8-DE22-11E6-A6DE-0662BA474D24; t=1492004763; bh=2z6uDng6b3ci4a1aYgQ/gDR//y3GJ11NAPKPdUnY6+s=; h=MIME-Version:From:Date:Message-ID:Subject:To:Content-Type; b=gHaoLMra62KmC9a8OtElT8fA/Z5IIwyf2CU4foItIin4BdmQ/KZLMMrE9u688SNlO UtIZTXtCWVpSH6Klnl3wDvsUE3PXr4u1sUEyy5Ub4hItIz+ryoadaAVkBgz0ZWaWPd /kADzxDTqgxeQR5X8nMuMP5xaiccKbomzFmHPM3c= X-Virus-Scanned: amavisd-new at zproxy220.enst-bretagne.fr Received: from zproxy220.enst-bretagne.fr ([127.0.0.1]) by localhost (zproxy220.enst-bretagne.fr [127.0.0.1]) (amavisd-new, port 10026) with ESMTP id nE24xrwbArYc for ; Wed, 12 Apr 2017 15:46:03 +0200 (CEST) Received: from mail-qk0-f171.google.com (mail-qk0-f171.google.com [209.85.220.171]) by zproxy220.enst-bretagne.fr (Postfix) with ESMTPSA id 0362730261 for ; Wed, 12 Apr 2017 15:46:03 +0200 (CEST) Received: by mail-qk0-f171.google.com with SMTP id d131so23300883qkc.3 for ; Wed, 12 Apr 2017 06:46:02 -0700 (PDT) X-Gm-Message-State: AFeK/H1UfoWPSZiG1SRBFVdOhKLwTpSD58MHAM22MGbzJXlHTsdyr+uu1W474RKeFhZZaf+l0BNq51s9vw1jHw== X-Received: by 10.55.86.5 with SMTP id k5mr57289607qkb.124.1492004761773; Wed, 12 Apr 2017 06:46:01 -0700 (PDT) MIME-Version: 1.0 Received: by 10.12.132.33 with HTTP; Wed, 12 Apr 2017 06:45:21 -0700 (PDT) In-Reply-To: References: From: Laurent Toutain Date: Wed, 12 Apr 2017 15:45:21 +0200 X-Gmail-Original-Message-ID: Message-ID: To: Philippe Clavier Cc: "lp-wan@ietf.org" Content-Type: multipart/alternative; boundary=001a114ea342d42df2054cf86d07 Archived-At: Subject: Re: [lp-wan] Place of the position value for CoAP options (SCHC) X-BeenThere: lp-wan@ietf.org X-Mailman-Version: 2.1.22 Precedence: list List-Id: "Low-Power Wide Area Networking \(LP-WAN\), also known as LPWA or Low-Rate WAN \(LR-WAN\)" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 12 Apr 2017 13:46:08 -0000 --001a114ea342d42df2054cf86d07 Content-Type: text/plain; charset=UTF-8 Hi Philippe, Thank you for this proposal, I like it. It simplifies two things in the current proposal: - MO has just a single value argument - it will be easier to locate a rule entry when there is multiple instances of it. This "field id value" becomes a key. Laurent On Mon, Apr 10, 2017 at 6:23 PM, Philippe Clavier wrote: > Dear all, > > > I am currently working on an implementation for SCHC of IPv6/UDP/CoAP over > LoRaWAN following the drafts "draft-ietf-lpwan-ipv6-static-context-hc-02" > and "draft-ietf-lpwan-coap-static-context-hc-01". > > > While working on the implementation it occurred to me that it might be > good to consider taking the position value added in the Matching Operator > for the CoAP options and put it directly in the Field ID. My main reason > for thinking this comes from the way the compressor/decompressor I have > implemented works and how this change simplifies the coding. > > > There are two main reasons why the code gets more complicated and these > are the following: > > In the implementation made in a LoPy, the rules are stored in dictionaries > (Python) and there cannot be two keys with the same name in a dictionary > (this is the same thing for objects in Javascript), so for a start the FID > of repeatable options must have different names. > > The other reason is that if the FID is the same for repeatable options, > once the Matching Operator has been matched for that field in a rule, each > position for that option must also be treated in a different way and this > adds complexity to the processes of compression/decompression. While, on > the other hand, if each FID is different for repeatable options these > fields can be treated as completely different fields with no relation to > other appearances of the same option and no extra operations should be > carried out. > > Finally, I also get the feeling that it gives a clearer conceptions for > the use of the position value. > > > Regards, > > Philippe Clavier > > > > > _______________________________________________ > lp-wan mailing list > lp-wan@ietf.org > https://www.ietf.org/mailman/listinfo/lp-wan > > --001a114ea342d42df2054cf86d07 Content-Type: text/html; charset=UTF-8 Content-Transfer-Encoding: quoted-printable
Hi Philippe,

Thank you fo= r this proposal, I like it. It simplifies two things in the current proposa= l:
- MO has just a single value argument
- it will be eas= ier to locate a rule entry when there is multiple instances of it. This &qu= ot;field id value"=C2=A0 becomes a key.

Laurent
=

On Mon, Apr 10, 2= 017 at 6:23 PM, Philippe Clavier <pclavier@hotmail.com> w= rote:

=

= Dear all,

=

= I am currently working on= an implementation for SCHC of IPv6/UDP/CoAP over LoRaWAN following the drafts "draft-ietf-lpwan-= ipv6-static-context-hc-02" and "draft-ietf-lpwan-coap-static-context-hc-01".

=

= While= working on the implementation it occurred to me that it might be good to consider taking the position va= lue added in the Matching Operator for the CoAP options and put it directly= in the Field ID. My main reason for thinking this comes from the way the c= ompressor/decompressor I have implemented works and how =C2=A0this change simplifies =C2=A0the coding.


There are two main reasons why the code gets more complicated and these are= the following:

In the implemen= tation made in a LoPy, the rules are stored in dictionaries (Python) and there cannot be tw= o keys with the same name in a dictionary (this is the same thing for objec= ts in Javascript), so for a start the FID of repeatable options must have d= ifferent names.

The other reaso= n is that if the FID is the same for repeatable options, once the Matching Operator has bee= n matched for that field in a rule, each position for that option must also= be treated in a different way and this adds complexity to the processes of= compression/decompression. While, on the = other hand, if each FID is different for repeatable options these fields ca= n be treated as completely different fields with no relation to other appearances of the same option = and no extra operations should be carried out.

Finally, I also= get the feeling that it gives a clearer conceptions for the use of the position value.


Regards,=

Philippe Clavie= r


=C2=A0 =C2=A0


_______________________________________________
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lp-wan@ietf.org
https://www.ietf.org/mailman/listinfo/lp-wan

--001a114ea342d42df2054cf86d07-- From nobody Wed Apr 12 06:59:18 2017 Return-Path: X-Original-To: lp-wan@ietfa.amsl.com Delivered-To: lp-wan@ietfa.amsl.com Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id BBCEF1294BF for ; Wed, 12 Apr 2017 06:59:17 -0700 (PDT) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -14.522 X-Spam-Level: X-Spam-Status: No, score=-14.522 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, HTML_MESSAGE=0.001, RCVD_IN_DNSWL_HI=-5, RCVD_IN_MSPIKE_H3=-0.01, RCVD_IN_MSPIKE_WL=-0.01, RP_MATCHES_RCVD=-0.001, SPF_HELO_PASS=-0.001, SPF_PASS=-0.001, USER_IN_DEF_DKIM_WL=-7.5] autolearn=ham autolearn_force=no Authentication-Results: ietfa.amsl.com (amavisd-new); dkim=pass (1024-bit key) header.d=cisco.com Received: from mail.ietf.org ([4.31.198.44]) by localhost (ietfa.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id iaycUpwQPtHQ for ; Wed, 12 Apr 2017 06:59:15 -0700 (PDT) Received: from rcdn-iport-6.cisco.com (rcdn-iport-6.cisco.com [173.37.86.77]) (using TLSv1.2 with cipher DHE-RSA-SEED-SHA (128/128 bits)) (No client certificate requested) by ietfa.amsl.com (Postfix) with ESMTPS id 92FB0129B48 for ; Wed, 12 Apr 2017 06:59:12 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=cisco.com; i=@cisco.com; l=8792; q=dns/txt; s=iport; t=1492005552; x=1493215152; h=from:to:cc:subject:date:message-id:mime-version; bh=ItIOhcuvxxPXdMe4qnthQR66c/SOGegkJZPVn/hP5Vc=; b=A1Kz8meMa25pgm619SwoGju9rv0AH+IYfWOw7S0ynmB4qTC5h91DKUcV wDrdy++K9RyHJA4smozW2RXJUxrGNvLTQPsr0KQolCx+VygBfQ/59NgHJ VXCxfzdY/nODcW1teUUJq7qKL/b2IxXF5lHuvLl6NCVVlJN6JbzB1MgZc E=; X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: =?us-ascii?q?A0DkAQDyMe5Y/4YNJK1cGgEBAQECAQEBA?= =?us-ascii?q?QgBAQEBgm46K2ExYY1ykkCPNYU1gg+GJIN6PxgBAgEBAQEBAQFrHQuFSUwSAYE?= =?us-ascii?q?AJgEEDg2KDqp5inkBAQEBAQEBAQEBAQEBAQEBAQEBH4ZRgV2CDVaKbwWJJ5NjA?= =?us-ascii?q?ZJXkU2UAQEfOIEFWxVBhRCBSokKgQ0BAQE?= X-IronPort-AV: E=Sophos;i="5.37,191,1488844800"; d="scan'208,217";a="232038821" Received: from alln-core-12.cisco.com ([173.36.13.134]) by rcdn-iport-6.cisco.com with ESMTP/TLS/DHE-RSA-AES256-SHA; 12 Apr 2017 13:59:11 +0000 Received: from XCH-ALN-002.cisco.com (xch-aln-002.cisco.com [173.36.7.12]) by alln-core-12.cisco.com (8.14.5/8.14.5) with ESMTP id v3CDxBZ0004189 (version=TLSv1/SSLv3 cipher=AES256-SHA bits=256 verify=FAIL); Wed, 12 Apr 2017 13:59:11 GMT Received: from xch-rcd-001.cisco.com (173.37.102.11) by XCH-ALN-002.cisco.com (173.36.7.12) with Microsoft SMTP Server (TLS) id 15.0.1210.3; Wed, 12 Apr 2017 08:59:11 -0500 Received: from xch-rcd-001.cisco.com ([173.37.102.11]) by XCH-RCD-001.cisco.com ([173.37.102.11]) with mapi id 15.00.1210.000; Wed, 12 Apr 2017 08:59:10 -0500 From: "Pascal Thubert (pthubert)" To: "draft-ietf-lpwan-ipv6-static-context-hc@tools.ietf.org" CC: lp-wan Thread-Topic: Summary (refresher) on issues / suggestions for the fragmentation piece in the SCHC draft Thread-Index: AdKzlHVKgFjX2VC+TvevWs6Luoz3QQ== Date: Wed, 12 Apr 2017 13:59:10 +0000 Deferred-Delivery: Wed, 12 Apr 2017 13:58:35 +0000 Message-ID: <885e24668e654c06b51fc1c67823bf6d@XCH-RCD-001.cisco.com> Accept-Language: fr-FR, en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: x-ms-exchange-transport-fromentityheader: Hosted x-originating-ip: [10.61.219.183] Content-Type: multipart/alternative; boundary="_000_885e24668e654c06b51fc1c67823bf6dXCHRCD001ciscocom_" MIME-Version: 1.0 Archived-At: Subject: [lp-wan] Summary (refresher) on issues / suggestions for the fragmentation piece in the SCHC draft X-BeenThere: lp-wan@ietf.org X-Mailman-Version: 2.1.22 Precedence: list List-Id: "Low-Power Wide Area Networking \(LP-WAN\), also known as LPWA or Low-Rate WAN \(LR-WAN\)" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 12 Apr 2017 13:59:18 -0000 --_000_885e24668e654c06b51fc1c67823bf6dXCHRCD001ciscocom_ Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: quoted-printable Dear all; I digged the list and packaged a status; --------------- Aborting a an exchange, or a series of fragments A Rule could be used; may be a generic rule like a < NO > prefix Also that depending in the direction, it might be better that the timeout/a= bort happens on source or destination so we should support both. A discussion on timeouts is probably missing here and there Finally that anything that involves a continuation should have a timer asso= ciated, on both sides, so that resources are never wasted forever. For each= timeout there should be an action in the standard, be it only clean up and= go. ------------ can there be multiple fragmented packets in parallel (how so) ? interleaving a higher priority packet? If not: - we may have to abort a transmission when emergency occurs, that's bad bu= t simple to do. - As a result, a long frame in a busy environment may take a lot of energy = and never go through. There c/should be rules to abandon it, maybe make tha= t implementation dependent? If yes: - then we have to consider the consequences on running timers, which may ne= ed to be restarted, but not for ever, upon an interleaved packet. - can we interleave a fragmented frame? If so we need to define an optional= datagram-tag, probably together with the rule ID and the CFN. A datagram t= ag of 1 bit can be used as a flip flop to disambiguate some situations wher= e fragments of the next frame are confused with fragments of a previous fra= me. More bits would make it a frame identifier and could allow interleaving= of a few fragmented frames. ------------------ Also, editorial : - introduce the assumptions early in the doc (e.g. no reordering in the net= work) - there could be a section explain what the tools are, e.g. CFN, ACK, Bitma= p, before we use them - discussion on what the modes are could be expressed as a matrix with X = =3D=3D windowed or not (that's CFN=3D1 or more), and Y =3D=3D type of ackn= owledgement (none, on-error, always). And in that matrix, it would help to = figure which modes are available, and then have section to explain the pro/= con, possible mitigation of the cons and applicability of each mode. Pascal --_000_885e24668e654c06b51fc1c67823bf6dXCHRCD001ciscocom_ Content-Type: text/html; charset="us-ascii" Content-Transfer-Encoding: quoted-printable

Dear all;

 

I digged the list and packaged a status; =

 

---------------

Aborting a an exchange, or a series of fragments

 

A Rule could be used; may be a generic rule lik= e a « NO » prefix

 

Also that depending in the direction, it might be= better that the timeout/abort happens on source or destination so we shoul= d support both.

A discussion on timeouts is probably missing here= and there

 

 

Finally that anything that involves a continuation s= hould have a timer associated, on both sides, so that resources are never w= asted forever. For each timeout there should be an action in the standard, = be it only clean up and go.

 

------------

 

can there be multiple fragmented packets in paral= lel (how so) ?

 

interleaving a higher priority packet?=

 

If not:

-  we may have to abort a transmission when = emergency occurs, that's bad but simple to do.

- As a result, a long frame in a busy environment= may take a lot of energy and never go through. There c/should be rules to = abandon it, maybe make that implementation dependent?

 

If yes:

- then we have to consider the consequences on ru= nning timers, which may need to be restarted, but not for ever, upon an int= erleaved packet.

- can we interleave a fragmented frame? If so we = need to define an optional datagram-tag, probably together with the rule ID= and the CFN. A datagram tag of 1 bit can be used as a flip flop to disambi= guate some situations where fragments of the next frame are confused with fragments of a previous frame. More bi= ts would make it a frame identifier and could allow interleaving of a few f= ragmented frames.

 

------------------

 

Also, editorial :

 

- introduce the assumptions early in the doc (e.g= . no reordering in the network)

- there could be a section explain what the tools= are, e.g. CFN, ACK, Bitmap, before we use them

- discussion on what the modes are could be expre= ssed as a matrix with X =3D=3D  windowed or not (that's CFN=3D1 or mor= e), and Y =3D=3D type of acknowledgement (none, on-error, always). And in t= hat matrix, it would help to figure which modes are available, and then have section to explain the pro/con, possible mitigati= on of the cons and applicability of each mode.

 

Pascal

 

--_000_885e24668e654c06b51fc1c67823bf6dXCHRCD001ciscocom_-- From nobody Tue Apr 18 08:04:28 2017 Return-Path: X-Original-To: lp-wan@ietf.org Delivered-To: lp-wan@ietfa.amsl.com Received: from ietfa.amsl.com (localhost [IPv6:::1]) by ietfa.amsl.com (Postfix) with ESMTP id 2D33512ECEF; Tue, 18 Apr 2017 08:04:21 -0700 (PDT) MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit From: IESG Secretary To: "IETF-Announce" Cc: lp-wan@ietf.org X-Test-IDTracker: no X-IETF-IDTracker: 6.49.1 Auto-Submitted: auto-generated Precedence: bulk Message-ID: <149252786091.16194.7029248643884425791@ietfa.amsl.com> Date: Tue, 18 Apr 2017 08:04:21 -0700 Archived-At: Subject: [lp-wan] IPv6 over Low Power Wide-Area Networks (lpwan) WG Virtual Meeting: 2017-05-10 X-BeenThere: lp-wan@ietf.org X-Mailman-Version: 2.1.22 List-Id: "Low-Power Wide Area Networking \(LP-WAN\), also known as LPWA or Low-Rate WAN \(LR-WAN\)" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 18 Apr 2017 15:04:21 -0000 The IPv6 over Low Power Wide-Area Networks (lpwan) Working Group will hold a virtual interim meeting on 2017-05-10 from 16:00 to 17:00 Europe/Paris. Agenda: The meeting agenda will be adjusted with appropriate information before the meeting (1 week before the meeting at the latest). The general topics will include presentations and discussions on updates / reviews / implementation feedback on the WG documents. - SCHC IP/UDP draft update from previous virtual interim meeting ( draft-ietf-lpwan-ipv6-static-context-hc- ?? ) - SCHC CoAP draft update from previous virtual interim meeting ( draft-ietf-lpwan-coap-static-context-hc- ?? ) - LPWAN Overview document update from previous virtual interim meeting ( draft-ietf-lpwan-overview- ?? ) ---------------------- Information on joining the meeting: JOIN WEBEX MEETING https://cisco.webex.com/ciscosales/j.php?MTID=me7f536292c568c696a054a7ff7ef0746 Meeting number (access code): 203 453 401 Meeting password: chicalors (24422567 from phones) JOIN FROM A VIDEO SYSTEM OR APPLICATION Dial sip:203453401@cisco.webex.com >From the Cisco internal network, dial *267* and the 9-digit meeting number. If you are the host, enter your PIN when prompted. JOIN BY PHONE +1-866-432-9903 Call-in toll-free number (US/Canada) +1-408-525-6800 Call-in toll number (US/Canada) Global call-in numbers: https://cisco.webex.com/ciscosales/globalcallin.php?serviceType=MC&ED=370387747&tollFree=1 Toll-free dialing restrictions: https://www.webex.com/pdf/tollfree_restrictions.pdf Can't join the meeting? https://help.webex.com/docs/DOC-5412 Information about remote participation: https://cisco.webex.com/ciscosales/j.php?MTID=me7f536292c568c696a054a7ff7ef0746 (see Agenda for password/details how to join) From prvs=2767c9254=ange.ouya@enedis.fr Thu Apr 20 02:39:28 2017 Return-Path: X-Original-To: lp-wan@ietfa.amsl.com Delivered-To: lp-wan@ietfa.amsl.com Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id 1909712EBDF for ; Thu, 20 Apr 2017 02:39:28 -0700 (PDT) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -4.199 X-Spam-Level: X-Spam-Status: No, score=-4.199 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, HTML_FONT_LOW_CONTRAST=0.001, HTML_MESSAGE=0.001, RCVD_IN_DNSWL_MED=-2.3, SPF_PASS=-0.001] autolearn=ham autolearn_force=no Received: from mail.ietf.org ([4.31.198.44]) by localhost (ietfa.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id x9XE6GwbQ4NY for ; Thu, 20 Apr 2017 02:39:25 -0700 (PDT) Received: from mtagatea.edf.fr (mtagatea.edf.fr [163.114.23.130]) by ietfa.amsl.com (Postfix) with ESMTP id DDE6D12EBE8 for ; Thu, 20 Apr 2017 02:39:22 -0700 (PDT) X-IronPort-AV: E=Sophos;i="5.37,225,1488841200"; d="png'150?scan'150,208,217,150";a="128654039" Received: from unknown (HELO webmail.intranet.edf.com) ([10.22.136.197]) by PCYDMZPIRGW001-back.edf.fr with ESMTP; 20 Apr 2017 11:39:20 +0200 Received: from NOEINTPEXMU027.NEOPROD.EDF.FR (10.22.136.214) by NOEINTPEXMU010.NEOPROD.EDF.FR (10.22.136.197) with Microsoft SMTP Server (TLS) id 15.0.1263.5; Thu, 20 Apr 2017 11:39:20 +0200 Received: from NOEINTPEXMU027.NEOPROD.EDF.FR (10.22.136.214) by NOEINTPEXMU027.NEOPROD.EDF.FR (10.22.136.214) with Microsoft SMTP Server (TLS) id 15.0.1263.5; Thu, 20 Apr 2017 11:39:19 +0200 Received: from NOEINTPEXMU027.NEOPROD.EDF.FR ([::1]) by NOEINTPEXMU027.NEOPROD.EDF.FR ([fe80::b49d:8abb:326:7e2%16]) with mapi id 15.00.1263.000; Thu, 20 Apr 2017 11:39:19 +0200 From: OUYA Ange To: "lp-wan@ietf.org" Thread-Topic: Implementation of SCHC protocol Thread-Index: AdK5ufubFt+kHdpeTme7S42MYqn3SA== Date: Thu, 20 Apr 2017 09:39:19 +0000 Message-ID: Accept-Language: fr-FR, en-US Content-Language: fr-FR X-MS-Has-Attach: yes X-MS-TNEF-Correlator: x-ms-exchange-transport-fromentityheader: Hosted x-originating-ip: [10.22.137.69] x_exchange_neo: 1 Content-Type: multipart/related; boundary="_008_b6388a90e42849eebe2fc6902a5c9a80NOEINTPEXMU027NEOPRODED_"; type="multipart/alternative" MIME-Version: 1.0 Archived-At: X-Mailman-Approved-At: Thu, 20 Apr 2017 02:50:28 -0700 Subject: [lp-wan] Implementation of SCHC protocol X-BeenThere: lp-wan@ietf.org X-Mailman-Version: 2.1.22 Precedence: list List-Id: "Low-Power Wide Area Networking \(LP-WAN\), also known as LPWA or Low-Rate WAN \(LR-WAN\)" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 20 Apr 2017 09:42:55 -0000 --_008_b6388a90e42849eebe2fc6902a5c9a80NOEINTPEXMU027NEOPRODED_ Content-Type: multipart/alternative; boundary="_000_b6388a90e42849eebe2fc6902a5c9a80NOEINTPEXMU027NEOPRODED_" --_000_b6388a90e42849eebe2fc6902a5c9a80NOEINTPEXMU027NEOPRODED_ Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Good morning, I'm currently working on interoperability solutions for LPWAN networks. So I'm dealing with the integration of IPv6 for enabling this interoperabi= lity. In this context, I read the draft about SCHC protocol 'draft-ietf-lpwan-ipv= 6-static-context-hc-02'. I would like to know if there are some current implementations of this prot= ocol and where I could eventually find them. Best regards, [ENEDIS] Ange OUYA Ing=E9nieur Stagiaire CPL/RF Enedis - Direction Technique D=E9partement STD - Programme LINKY 345, Avenue Georges Clemenceau - 92000 Nanterre +33 1 81 97 81 64 - +33 7 83 07 64 98 ange.ouya@enedis.fr [ENEDIS]_[Facebook]_[Twitter]_[Youtube]_ Merci de penser =E0 l'environnement avant d'imprimer ce message ---------------------------------------------------------------------------= ---------------------------------------------------------------------------= -------------------------------- Ce message est destin=E9 exclusivement aux personnes ou entit=E9s auxquelle= s il est adress=E9 et peut contenir des informations privil=E9gi=E9es ou co= nfidentielles. Si vous avez re=E7u ce document par erreur, merci de nous l'= indiquer par retour et proc=E9der =E0 sa destruction. --_000_b6388a90e42849eebe2fc6902a5c9a80NOEINTPEXMU027NEOPRODED_ Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable

Good morning,

 

I’m currently working on interoperability solu= tions for LPWAN networks.

So I’m dealing  with the integration of I= Pv6 for enabling this interoperability.

In this context, I read the draft about SCHC protoco= l ‘draft-ietf-lpwan-ipv6-static-context-hc-02’.=

I would like to know if there are some current imple= mentations of this protocol and where I could eventually find them.

 

Best regards,

 

3D"ENEDIS"<= /span>

Ange OUYA

Ing=E9nieur Stagiaire CPL/RF

Enedis - Direction Technique
D=E9partement STD - Programme LINKY
345, Avenue Georges Clemenceau - 92000 Nanterre
+33 1 81 97 81 64 - +33 7 83 07 64 98
ange.ouya@enedis.fr

3D"ENEDIS"_3D"Facebook"_<= span style=3D"font-size:12.0pt;color:white">3D"Twitter"_3D"=_

Merci de penser =E0 l'envi= ronnement avant d'imprimer ce message

----------------------------------------------= ---------------------------------------------------------------------------= -------------------------------------------------------------
Ce message est destin=E9 exclusivement aux personnes ou entit=E9s auxquelle= s il est adress=E9 et peut contenir des informations privil=E9gi=E9es ou co= nfidentielles. Si vous avez re=E7u ce document par erreur, merci de nous l'= indiquer par retour et proc=E9der =E0 sa destruction.

 

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RCVD_IN_MSPIKE_H2=-2.8, RP_MATCHES_RCVD=-0.001, SPF_PASS=-0.001, UNPARSEABLE_RELAY=0.001] autolearn=ham autolearn_force=no Received: from mail.ietf.org ([4.31.198.44]) by localhost (ietfa.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id Oj3riE7vgiXB for ; Thu, 20 Apr 2017 02:55:40 -0700 (PDT) Received: from relais-inet.orange.com (mta135.mail.business.static.orange.com [80.12.70.35]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by ietfa.amsl.com (Postfix) with ESMTPS id C51F912EC4E for ; Thu, 20 Apr 2017 02:55:39 -0700 (PDT) Received: from opfednr04.francetelecom.fr (unknown [xx.xx.xx.68]) by opfednr23.francetelecom.fr (ESMTP service) with ESMTP id 98582C04EB; Thu, 20 Apr 2017 11:55:38 +0200 (CEST) Received: from Exchangemail-eme2.itn.ftgroup (unknown [xx.xx.31.32]) by opfednr04.francetelecom.fr (ESMTP service) with ESMTP id 613FE4005B; Thu, 20 Apr 2017 11:55:38 +0200 (CEST) Received: from OPEXCLILM22.corporate.adroot.infra.ftgroup ([fe80::8c90:f4e9:be28:2a1]) by OPEXCLILM32.corporate.adroot.infra.ftgroup ([fe80::8924:188:2124:a046%19]) with mapi id 14.03.0319.002; Thu, 20 Apr 2017 11:55:38 +0200 From: To: OUYA Ange , "lp-wan@ietf.org" Thread-Topic: [lp-wan] Implementation of SCHC protocol Thread-Index: AQHSubxDD4ifW77wkEyg9pwl2bfzmw== Date: Thu, 20 Apr 2017 09:55:37 +0000 Message-ID: <5229_1492682138_58F8859A_5229_2542_1_D51E51A4.42BE7%dominique.barthel@orange.com> Accept-Language: fr-FR, en-US Content-Language: fr-FR X-MS-Has-Attach: yes X-MS-TNEF-Correlator: user-agent: Microsoft-MacOutlook/14.7.1.161129 x-originating-ip: [10.168.234.3] Content-Type: multipart/mixed; boundary="_008_D51E51A442BE7dominiquebarthelorangecom_" MIME-Version: 1.0 Archived-At: Subject: Re: [lp-wan] Implementation of SCHC protocol X-BeenThere: lp-wan@ietf.org X-Mailman-Version: 2.1.22 Precedence: list List-Id: "Low-Power Wide Area Networking \(LP-WAN\), also known as LPWA or Low-Rate WAN \(LR-WAN\)" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 20 Apr 2017 09:55:42 -0000 --_008_D51E51A442BE7dominiquebarthelorangecom_ Content-Type: multipart/alternative; boundary="_000_D51E51A442BE7dominiquebarthelorangecom_" --_000_D51E51A442BE7dominiquebarthelorangecom_ Content-Type: text/plain; charset="Windows-1252" Content-Transfer-Encoding: quoted-printable Hello Ange, I know this one, in Python, targeted at LoRaWAN. https://github.com/ltn22/SCHC There could be others Please send a summary email when you have listed what is publicly available. Best regards, Dominique De : lp-wan > on be= half of OUYA Ange > Date : Thursday 20 April 2017 11:39 =C0 : "lp-wan@ietf.org" > Objet : [lp-wan] Implementation of SCHC protocol Good morning, I=92m currently working on interoperability solutions for LPWAN networks. So I=92m dealing with the integration of IPv6 for enabling this interopera= bility. In this context, I read the draft about SCHC protocol =91draft-ietf-lpwan-i= pv6-static-context-hc-02=92. I would like to know if there are some current implementations of this prot= ocol and where I could eventually find them. Best regards, [ENEDIS] Ange OUYA Ing=E9nieur Stagiaire CPL/RF Enedis - Direction Technique D=E9partement STD - Programme LINKY 345, Avenue Georges Clemenceau - 92000 Nanterre +33 1 81 97 81 64 - +33 7 83 07 64 98 ange.ouya@enedis.fr [ENEDIS]_[Facebook]_[Twitter]_[Youtube]_ Merci de penser =E0 l'environnement avant d'imprimer ce message ---------------------------------------------------------------------------= ---------------------------------------------------------------------------= -------------------------------- Ce message est destin=E9 exclusivement aux personnes ou entit=E9s auxquelle= s il est adress=E9 et peut contenir des informations privil=E9gi=E9es ou co= nfidentielles. Si vous avez re=E7u ce document par erreur, merci de nous l'= indiquer par retour et proc=E9der =E0 sa destruction. ___________________________________________________________________________= ______________________________________________ Ce message et ses pieces jointes peuvent contenir des informations confiden= tielles ou privilegiees et ne doivent donc pas etre diffuses, exploites ou copies sans autorisation. Si vous avez recu= ce message par erreur, veuillez le signaler a l'expediteur et le detruire ainsi que les pieces jointes. Les messages el= ectroniques etant susceptibles d'alteration, Orange decline toute responsabilite si ce message a ete altere, deforme ou = falsifie. Merci. This message and its attachments may contain confidential or privileged inf= ormation that may be protected by law; they should not be distributed, used or copied without authorisation. If you have received this email in error, please notify the sender and dele= te this message and its attachments. As emails may be altered, Orange is not liable for messages that have been = modified, changed or falsified. Thank you. --_000_D51E51A442BE7dominiquebarthelorangecom_ Content-Type: text/html; charset="Windows-1252" Content-ID: <9725FC52F291284595E472303816D8C3@adroot.infra.ftgroup> Content-Transfer-Encoding: quoted-printable
Hello Ange,

I know this one, in Python, targeted at LoRaWAN.
There could be others
Please send a summary email when you have listed what is publicly avai= lable.
Best regards,

Dominique

De : lp-wan <lp-wan-bounces@ietf.org> on behalf of O= UYA Ange <ange.ouya@enedis.fr= >
Date : Thursday 20 April 2017 = 11:39
=C0 : "lp-wan@ietf.org" <lp-wan@ietf.org>
Objet : [lp-wan] Implementatio= n of SCHC protocol

Good morning,

 

I=92m currently working on interoperability solution= s for LPWAN networks.

So I=92m dealing  with the integration of IPv6 = for enabling this interoperability.

In this context, I read the draft about SCHC protoco= l =91draft-ietf-lpwan-ipv6-static-context-hc-02=92.

I would like to know if there are some current imple= mentations of this protocol and where I could eventually find them.

 

Best regards,

 

3D"ENEDIS"<= /span>

Ange OUYA

Ing=E9nieur Stagiaire CPL/RF

Enedis - Direction Technique
D=E9partement STD - Programme LINKY
345, Avenue Georges Clemenceau - 92000 Nanterre
+33 1 81 97 81 64 - +33 7 83 07 64 98
ange.ouya@enedis.fr

3D"ENEDIS"_3D"Facebook"_<= span style=3D"font-size:12.0pt;color:white">3D"Twitter"_3D"=_

Merci de penser =E0 l'envi= ronnement avant d'imprimer ce message

----------------------------------------------= ---------------------------------------------------------------------------= -------------------------------------------------------------
Ce message est destin=E9 exclusivement aux personnes ou entit=E9s auxquelle= s il est adress=E9 et peut contenir des informations privil=E9gi=E9es ou co= nfidentielles. Si vous avez re=E7u ce document par erreur, merci de nous l'= indiquer par retour et proc=E9der =E0 sa destruction.

 

 
______________________________________________________________________=
___________________________________________________

Ce message et ses pieces jointes peuvent contenir des informations confiden=
tielles ou privilegiees et ne doivent donc
pas etre diffuses, exploites ou copies sans autorisation. Si vous avez recu=
 ce message par erreur, veuillez le signaler
a l'expediteur et le detruire ainsi que les pieces jointes. Les messages el=
ectroniques etant susceptibles d'alteration,
Orange decline toute responsabilite si ce message a ete altere, deforme ou =
falsifie. Merci.

This message and its attachments may contain confidential or privileged inf=
ormation that may be protected by law;
they should not be distributed, used or copied without authorisation.
If you have received this email in error, please notify the sender and dele=
te this message and its attachments.
As emails may be altered, Orange is not liable for messages that have been =
modified, changed or falsified.
Thank you.
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with SMTP id m136mr2709862wma.87.1492687386699; Thu, 20 Apr 2017 04:23:06 -0700 (PDT) MIME-Version: 1.0 Received: by 10.28.46.129 with HTTP; Thu, 20 Apr 2017 04:23:05 -0700 (PDT) In-Reply-To: References: From: "Prof. Diego Dujovne" Date: Thu, 20 Apr 2017 08:23:05 -0300 Message-ID: To: lp-wan Content-Type: multipart/related; boundary=001a114b204272308d054d975dd1 Archived-At: Subject: [lp-wan] Fwd: Implementation of SCHC protocol X-BeenThere: lp-wan@ietf.org X-Mailman-Version: 2.1.22 Precedence: list List-Id: "Low-Power Wide Area Networking \(LP-WAN\), also known as LPWA or Low-Rate WAN \(LR-WAN\)" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 20 Apr 2017 11:23:11 -0000 --001a114b204272308d054d975dd1 Content-Type: multipart/alternative; boundary=001a114b204272308a054d975dd0 --001a114b204272308a054d975dd0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: quoted-printable ---------- Message transf=C3=A9r=C3=A9 ---------- De : *Prof. Diego Dujovne* Date : jeudi 20 avril 2017 Objet : [lp-wan] Implementation of SCHC protocol =C3=80 : OUYA Ange Ange, There is an open-source implementation we have been developing at Universidad Diego Portales, Chile, for LoRaWAN. You can find the current source code at https://github.com/tlagos1/LoRA_IPv6_implementation/tree/develop Regards, Diego Dujovne Le 20 avril 2017 =C3=A0 06:39, OUYA Ange > a =C3=A9crit : > Good morning, > > > > I=E2=80=99m currently working on interoperability solutions for LPWAN net= works. > > So I=E2=80=99m dealing with the integration of IPv6 for enabling this > interoperability. > > In this context, I read the draft about SCHC protocol > =E2=80=98draft-ietf-lpwan-ipv6-static-context-hc-02=E2=80=99. > > I would like to know if there are some current implementations of this > protocol and where I could eventually find them. > > > > Best regards, > > > > [image: ENEDIS] > > *Ange OUYA* > > Ing=C3=A9nieur Stagiaire CPL/RF > > *Enedis* - Direction Technique > D=C3=A9partement STD - Programme LINKY > 345, Avenue Georges Clemenceau - 92000 Nanterre > +33 1 81 97 81 64 <+33%201%2081%2097%2081%2064> - +33 7 83 07 64 98 > <+33%207%2083%2007%2064%2098> > *ange.ouya@enedis.fr * > > [image: ENEDIS]_ [image: Facebook]_ > [image: Twitter]_ > [image: Youtube]_ > > > *Merci de penser =C3=A0 l'environnement avant d'imprimer ce message* > > ------------------------------------------------------------ > ------------------------------------------------------------ > -------------------------------------------------------------- > Ce message est destin=C3=A9 exclusivement aux personnes ou entit=C3=A9s a= uxquelles > il est adress=C3=A9 et peut contenir des informations privil=C3=A9gi=C3= =A9es ou > confidentielles. Si vous avez re=C3=A7u ce document par erreur, merci de = nous > l'indiquer par retour et proc=C3=A9der =C3=A0 sa destruction. > > > > _______________________________________________ > lp-wan mailing list > lp-wan@ietf.org > https://www.ietf.org/mailman/listinfo/lp-wan > > --=20 DIEGO DUJOVNE Profesor Asociado Escuela de Inform=C3=A1tica y Telecomunicaciones Facultad de Ingenier=C3=ADa - Universidad Diego Portales - Chile www.ingenieria.udp.cl (56 2) 676 8125 --=20 DIEGO DUJOVNE Profesor Asociado Escuela de Inform=C3=A1tica y Telecomunicaciones Facultad de Ingenier=C3=ADa - Universidad Diego Portales - Chile www.ingenieria.udp.cl (56 2) 676 8125 --001a114b204272308a054d975dd0 Content-Type: text/html; charset=UTF-8 Content-Transfer-Encoding: quoted-printable

---------- Message transf=C3=A9r=C3=A9 ----------
De=C2=A0: P= rof. Diego Dujovne <die= go.dujovne@mail.udp.cl>
Date=C2=A0: jeudi 20 avril 2017
Objet= =C2=A0: [lp-wan] Implementation of SCHC protocol
=C3=80=C2=A0: OUYA Ange= <ange.ouya@enedis.fr>
=

Ange,
=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 There= is an open-source implementation
we have been developing at Univ= ersidad Diego
Portales, Chile, for LoRaWAN.=C2=A0
=C2= =A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0You can find the current source code = at


=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0Regards,

=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0= =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2= =A0 Diego Dujovne

Le 20 avril 2017 =C3=A0 06:39, OUYA Ange <= ange.ouya@enedis.fr> a =C3=A9crit :

Good morning,

=C2=A0

I=E2=80=99m currently working on interoperability so= lutions for LPWAN networks.

So I=E2=80=99m dealing =C2=A0with the integration of= IPv6 for enabling this interoperability.

In this context, I read the draft about SCHC protoco= l =E2=80=98draft-ietf-lpwan-ipv6-static-context-hc-02=E2=80=99.

I would like to know if there are some current imple= mentations of this protocol and where I could eventually find them.<= u>

=C2=A0

Best regards,

=C2=A0

3D"ENEDIS"

Ange O= UYA=

Ing=C3=A9nieur Stagiaire CPL/RF

Enedis - Direction Technique
D=C3=A9partement STD - Programme LINKY
345, Avenue Georges Clemenceau - 92000 Nanterre
+33 1 81 97 81 64 - +33 7 83 07 64 98
ange.ouya@enedis.fr

3D"ENEDIS"_3D"Facebook"_3D"T=_= 3D"Youtube"_

Merci de penser =C3=A0 l&#= 39;environnement avant d'imprimer ce message

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DIEGO DUJOVNE
Profesor Asociado
Escuela de Inform=C3=A1tica y Teleco= municaciones
Facultad de Ingenier=C3=ADa - Universidad Diego Portales - = Chile
www.ing= enieria.udp.cl
(56 2) 676 8125



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DIEGO DUJOVN= E
Profesor Asociado
Escuela de Inform=C3=A1tica y Telecomunicaciones<= br>Facultad de Ingenier=C3=ADa - Universidad Diego Portales - Chile
www.ingenieria.udp.c= l
(56 2) 676 8125

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(PDT) MIME-Version: 1.0 Received: by 10.176.5.225 with HTTP; Thu, 20 Apr 2017 07:32:19 -0700 (PDT) In-Reply-To: References: From: Ivaylo Petrov Date: Thu, 20 Apr 2017 16:32:19 +0200 X-Gmail-Original-Message-ID: Message-ID: To: "Prof. Diego Dujovne" Cc: lp-wan Content-Type: multipart/related; boundary=f403043c4f48f98fdc054d9a030a Archived-At: Subject: Re: [lp-wan] Fwd: Implementation of SCHC protocol X-BeenThere: lp-wan@ietf.org X-Mailman-Version: 2.1.22 Precedence: list List-Id: "Low-Power Wide Area Networking \(LP-WAN\), also known as LPWA or Low-Rate WAN \(LR-WAN\)" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 20 Apr 2017 14:33:01 -0000 --f403043c4f48f98fdc054d9a030a Content-Type: multipart/alternative; boundary=f403043c4f48f98fd8054d9a0309 --f403043c4f48f98fd8054d9a0309 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: quoted-printable Dear Ange, As you are probably already aware, Acklio has a commercial implementation of SCHC. Best regards, Ivaylo Petrov 2017-04-20 13:23 GMT+02:00 Prof. Diego Dujovne : > > > ---------- Message transf=C3=A9r=C3=A9 ---------- > De : *Prof. Diego Dujovne* > Date : jeudi 20 avril 2017 > Objet : [lp-wan] Implementation of SCHC protocol > =C3=80 : OUYA Ange > > > Ange, > There is an open-source implementation > we have been developing at Universidad Diego > Portales, Chile, for LoRaWAN. > You can find the current source code at > > https://github.com/tlagos1/LoRA_IPv6_implementation/tree/develop > > Regards, > > Diego Dujovne > > Le 20 avril 2017 =C3=A0 06:39, OUYA Ange a =C3=A9cr= it : > >> Good morning, >> >> >> >> I=E2=80=99m currently working on interoperability solutions for LPWAN ne= tworks. >> >> So I=E2=80=99m dealing with the integration of IPv6 for enabling this >> interoperability. >> >> In this context, I read the draft about SCHC protocol >> =E2=80=98draft-ietf-lpwan-ipv6-static-context-hc-02=E2=80=99. >> >> I would like to know if there are some current implementations of this >> protocol and where I could eventually find them. >> >> >> >> Best regards, >> >> >> >> [image: ENEDIS] >> >> *Ange OUYA* >> >> Ing=C3=A9nieur Stagiaire CPL/RF >> >> *Enedis* - Direction Technique >> D=C3=A9partement STD - Programme LINKY >> 345, Avenue Georges Clemenceau - 92000 Nanterre >> +33 1 81 97 81 64 <+33%201%2081%2097%2081%2064> - +33 7 83 07 64 98 >> <+33%207%2083%2007%2064%2098> >> *ange.ouya@enedis.fr* >> >> [image: ENEDIS]_ [image: Facebook]_ >> [image: Twitter]_ >> [image: Youtube]_ >> >> >> *Merci de penser =C3=A0 l'environnement avant d'imprimer ce message* >> >> ------------------------------------------------------------ >> ------------------------------------------------------------ >> -------------------------------------------------------------- >> Ce message est destin=C3=A9 exclusivement aux personnes ou entit=C3=A9s = auxquelles >> il est adress=C3=A9 et peut contenir des informations privil=C3=A9gi=C3= =A9es ou >> confidentielles. Si vous avez re=C3=A7u ce document par erreur, merci de= nous >> l'indiquer par retour et proc=C3=A9der =C3=A0 sa destruction. >> >> >> >> _______________________________________________ >> lp-wan mailing list >> lp-wan@ietf.org >> https://www.ietf.org/mailman/listinfo/lp-wan >> >> > > > -- > DIEGO DUJOVNE > Profesor Asociado > Escuela de Inform=C3=A1tica y Telecomunicaciones > Facultad de Ingenier=C3=ADa - Universidad Diego Portales - Chile > www.ingenieria.udp.cl > (56 2) 676 8125 > > > > -- > DIEGO DUJOVNE > Profesor Asociado > Escuela de Inform=C3=A1tica y Telecomunicaciones > Facultad de Ingenier=C3=ADa - Universidad Diego Portales - Chile > www.ingenieria.udp.cl > (56 2) 676 8125 > > > _______________________________________________ > lp-wan mailing list > lp-wan@ietf.org > https://www.ietf.org/mailman/listinfo/lp-wan > > --f403043c4f48f98fd8054d9a0309 Content-Type: text/html; charset=UTF-8 Content-Transfer-Encoding: quoted-printable
= Dear Ange,

As you are probably already aware, Acklio has a commercial implementation of SCHC.

Best regards,
Ivaylo Petrov

2017-04-20 13:23 GMT+02:00 Prof. Dieg= o Dujovne <diego.dujovne@mail.udp.cl>:


---------- Message transf=C3=A9r=C3=A9 -------= ---
De=C2=A0: Prof. Diego Dujovne <diego.dujovne@mail.udp.cl>
Da= te=C2=A0: jeudi 20 avril 2017
Objet=C2=A0: [lp-wan] Imp= lementation of SCHC protocol
=C3=80=C2=A0: OUYA Ange <ange.ouya@enedis.fr&g= t;


Ange,
=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0= There is an open-source implementation
we have been developing a= t Universidad Diego
Portales, Chile, for LoRaWAN.=C2=A0
=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0You can find the current source c= ode at


<= /div>
=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0Regards,

<= /div>
=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 = =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2= =A0 =C2=A0 Diego Dujovne

Le 20 avril 2017 =C3=A0 06:39, OU= YA Ange <ange.ouya@enedis.fr> a =C3= =A9crit :

Good morning,

=C2=A0

I=E2=80=99m currently working on interoperability so= lutions for LPWAN networks.

So I=E2=80=99m dealing =C2=A0with the integration of= IPv6 for enabling this interoperability.

In this context, I read the draft about SCHC protoco= l =E2=80=98draft-ietf-lpwan-ipv6-static-context-hc-02=E2=80=99.

I would like to know if there are some current imple= mentations of this protocol and where I could eventually find them.<= u>

=C2=A0

Best regards,

=C2=A0

3D"ENEDIS"

Ange O= UYA=

Ing=C3=A9nieur Stagiaire CPL/RF

Enedis - Direction Technique
D=C3=A9partement STD - Programme LINKY
345, Avenue Georges Clemenceau - 92000 Nanterre
+33 1 81 97 81 64 - +33 7 83 07 64 98
ange.ouya@enedis.f= r

3D"ENEDIS"_3D"Facebook"_3D"T=_= 3D"Youtube"_

Merci de penser =C3=A0 l&#= 39;environnement avant d'imprimer ce message

--------= -----------------------------------------------------------------= -----------------------------------------------------------------= --------------------------------------------
Ce message est destin=C3=A9 exclusivement aux personnes ou entit=C3=A9s aux= quelles il est adress=C3=A9 et peut contenir des informations privil=C3=A9g= i=C3=A9es ou confidentielles. Si vous avez re=C3=A7u ce document par erreur= , merci de nous l'indiquer par retour et proc=C3=A9der =C3=A0 sa destru= ction.

=C2=A0


_______________________________________________
lp-wan mailing list
lp-wan@ietf.org
https://www.ietf.org/mailman/listinfo/lp-wan

<= br clear=3D"all">

--
DIEGO DUJOVNE
Profesor A= sociado
Escuela de Inform=C3=A1tica y Telecomunicaciones
Facultad de = Ingenier=C3=ADa - Universidad Diego Portales - Chile
www.ingenieria.udp.cl
(56 2)= 676 8125



--
DIEGO DUJOVN= E
Profesor Asociado
Escuela de Inform=C3=A1tica y Telecomunicaciones<= br>Facultad de Ingenier=C3=ADa - Universidad Diego Portales - Chile
www.ingenieria.udp.c= l
(56 2) 676 8125


_______________________________________________
lp-wan mailing list
lp-wan@ietf.org
https://www.ietf.org/mailman/listinfo/lp-wan

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List-Subscribe: , X-List-Received-Date: Fri, 21 Apr 2017 22:22:37 -0000 --f403045d61209e3163054db4b1b2 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: quoted-printable Hello, I am writing to inform you of the latest update of my work titled "implementation of IPv6 in LoRa networks" using SCHC. https://github.com/tlagos1/LoRA_IPv6_implementation/tree/develop The branch in which I am developing is the "develop". I'll wait for your comments regards Tom=C3=A1s Lagos --f403045d61209e3163054db4b1b2 Content-Type: text/html; charset=UTF-8 Content-Transfer-Encoding: quoted-printable
Hello,
I am writing to inform you of the la= test update of my work titled "implementation of IPv6 in LoRa networks= " using SCHC.


The br= anch in which I am developing is the "develop". I'll wait for= your comments

regards

To= m=C3=A1s Lagos
--f403045d61209e3163054db4b1b2-- From nobody Tue Apr 25 05:57:57 2017 Return-Path: X-Original-To: lp-wan@ietfa.amsl.com Delivered-To: lp-wan@ietfa.amsl.com Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id 0635A128D40 for ; Tue, 25 Apr 2017 05:57:56 -0700 (PDT) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -14.501 X-Spam-Level: X-Spam-Status: No, score=-14.501 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, HTML_MESSAGE=0.001, RCVD_IN_DNSWL_HI=-5, RP_MATCHES_RCVD=-0.001, SPF_HELO_PASS=-0.001, SPF_PASS=-0.001, URIBL_BLOCKED=0.001, USER_IN_DEF_DKIM_WL=-7.5] autolearn=ham autolearn_force=no Authentication-Results: ietfa.amsl.com (amavisd-new); dkim=pass (1024-bit key) header.d=cisco.com Received: from mail.ietf.org ([4.31.198.44]) by localhost (ietfa.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id Cj319Ynbq9AW for ; Tue, 25 Apr 2017 05:57:54 -0700 (PDT) Received: from rcdn-iport-1.cisco.com (rcdn-iport-1.cisco.com [173.37.86.72]) (using TLSv1.2 with cipher DHE-RSA-SEED-SHA (128/128 bits)) (No client certificate requested) by ietfa.amsl.com (Postfix) with ESMTPS id 4E807126557 for ; Tue, 25 Apr 2017 05:57:54 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=cisco.com; i=@cisco.com; l=13342; q=dns/txt; s=iport; t=1493125074; x=1494334674; h=from:to:subject:date:message-id:mime-version; bh=8YLZp7pw5xjhbT7uQV35ckUcW2rUfZ4hSe8JqYXrX9Y=; b=GVb1UMDUfO7M5/Se2CUG/vwsUIFqvJ2NxcrjN+icL5Oo7fny2OVRpdc8 xHHBs3zI5IIsx1rqFjkULHY/I8veMVC4OwRZ8PcAtw4hkAtyPxODOSMlK aNvnTOatc9Muh/oguxvKGIlBVqFcmEteP+wm7ophIJfC60g9I1ZksfN4K I=; X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: =?us-ascii?q?A0DPAACMRv9Y/4cNJK1BGhkBAQEBAQEBA?= =?us-ascii?q?QEBAQcBAQEBAYJuZmGBDAeNdaIehTWCDy6FdoQSPxgBAgEBAQEBAQFrKIVJXgE?= =?us-ascii?q?cHAw8JgEEG4oUDjGaI5Ivg1SHRgEBAQEBBQEBAQEBAQEBIIZTgV2EVYFcgV8ug?= =?us-ascii?q?hKCaxoFnUEBgVqFPItmggmFM4oklBgBHziBBmMVhS0cgWN1AYgogQ0BAQE?= X-IronPort-AV: E=Sophos;i="5.37,249,1488844800"; d="scan'208,217";a="240937315" Received: from alln-core-2.cisco.com ([173.36.13.135]) by rcdn-iport-1.cisco.com with ESMTP/TLS/DHE-RSA-AES256-SHA; 25 Apr 2017 12:57:53 +0000 Received: from XCH-RCD-004.cisco.com (xch-rcd-004.cisco.com [173.37.102.14]) by alln-core-2.cisco.com (8.14.5/8.14.5) with ESMTP id v3PCvri2017982 (version=TLSv1/SSLv3 cipher=AES256-SHA bits=256 verify=FAIL) for ; Tue, 25 Apr 2017 12:57:53 GMT Received: from xch-rcd-001.cisco.com (173.37.102.11) by XCH-RCD-004.cisco.com (173.37.102.14) with Microsoft SMTP Server (TLS) id 15.0.1210.3; Tue, 25 Apr 2017 07:57:52 -0500 Received: from xch-rcd-001.cisco.com ([173.37.102.11]) by XCH-RCD-001.cisco.com ([173.37.102.11]) with mapi id 15.00.1210.000; Tue, 25 Apr 2017 07:57:52 -0500 From: "Pascal Thubert (pthubert)" To: lp-wan Thread-Topic: Agenda for LPWAN WG Interim, Wed. 2017-04-26 Thread-Index: AdK9w0lpwfovV+/IQ4aZVTBIUHnZBQ== Date: Tue, 25 Apr 2017 12:57:33 +0000 Deferred-Delivery: Tue, 25 Apr 2017 12:57:05 +0000 Message-ID: <14407fa39ab94bd89050bfa861de35b0@XCH-RCD-001.cisco.com> Accept-Language: fr-FR, en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: x-ms-exchange-transport-fromentityheader: Hosted x-originating-ip: [10.55.22.4] Content-Type: multipart/alternative; boundary="_000_14407fa39ab94bd89050bfa861de35b0XCHRCD001ciscocom_" MIME-Version: 1.0 Archived-At: Subject: [lp-wan] Agenda for LPWAN WG Interim, Wed. 2017-04-26 X-BeenThere: lp-wan@ietf.org X-Mailman-Version: 2.1.22 Precedence: list List-Id: "Low-Power Wide Area Networking \(LP-WAN\), also known as LPWA or Low-Rate WAN \(LR-WAN\)" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 25 Apr 2017 12:57:56 -0000 --_000_14407fa39ab94bd89050bfa861de35b0XCHRCD001ciscocom_ Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: quoted-printable Connection details * Date: 7-8am US Pacific, 4pm CEST: http://www.worldtimebuddy.com/?qm= =3D1&lid=3D100,12,5392171,1850147&h=3D100&date=3D2017-04-26&sln=3D14-15 * Webex Link: https://cisco.webex.com/ciscosales/j.php?MTID=3Dme7f53629= 2c568c696a054a7ff7ef0746 * Meeting number (access code): 203 453 401 * Meeting password: chicalors (24422567 from phones) Agenda * [7:05]Administrivia = [ 2min] * Agenda bashing * Approval minutes from last meeting * [7:07] Status of drafts (chairs) = [5min] * Close to WGLC? * [7:12] LPWAN Overview (Steve) = [10min] * [7:22] SCHC IP/UDP Compression (Laurent, Ana) [15= min] * [7:37] SCHC Fragmentation (Carles) [15mi= n] * [7:52] SCHC CoAP (Laurent) = [5min] * [7:57] AOB = [ 3min] As usual, please let the chairs (cc) know if you wish to add/modify agenda = items. The chairs; --_000_14407fa39ab94bd89050bfa861de35b0XCHRCD001ciscocom_ Content-Type: text/html; charset="us-ascii" Content-Transfer-Encoding: quoted-printable

Connection details

Agenda

  • [7:05]Administrivia           =             &nb= sp;            =              &n= bsp;            &nbs= p;      [ 2min]
    • Agenda bashing
    • Approval minutes from last meeting
  • [7:07] Status of drafts (chairs)        =              &n= bsp;            = ;           [5min]
    • Close to WGLC?
  • [7:12] LPWAN Overview  (Steve)       &nb= sp;             = ;              =            [10min]
  • [7:22] SCHC IP/UDP Compression (Laurent, Ana)   = ;             &= nbsp;    [15min]
  • [7:37] SCHC Fragmentation (Carles)       &nbs= p;            &= nbsp;         [15min]
  • [7:52] SCHC CoAP (Laurent)         =             &nb= sp;            =              &n= bsp;           [5min]
  • [7:57] AOB            &nb= sp;            =             &nb= sp;            =              &n= bsp;            &nbs= p;         [ 3min]
    • <= /ul>

    As usual, please let the chairs (cc) know if you wis= h to add/modify agenda items.

     

    The chairs;

     

--_000_14407fa39ab94bd89050bfa861de35b0XCHRCD001ciscocom_-- From nobody Wed Apr 26 23:48:28 2017 Return-Path: X-Original-To: lp-wan@ietfa.amsl.com Delivered-To: lp-wan@ietfa.amsl.com Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id 77B8F1294CF for ; Wed, 26 Apr 2017 23:48:27 -0700 (PDT) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -14.522 X-Spam-Level: X-Spam-Status: No, score=-14.522 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, RCVD_IN_DNSWL_HI=-5, RCVD_IN_MSPIKE_H3=-0.01, RCVD_IN_MSPIKE_WL=-0.01, RP_MATCHES_RCVD=-0.001, SPF_HELO_PASS=-0.001, SPF_PASS=-0.001, URIBL_BLOCKED=0.001, USER_IN_DEF_DKIM_WL=-7.5] autolearn=ham autolearn_force=no Authentication-Results: ietfa.amsl.com (amavisd-new); dkim=pass (1024-bit key) header.d=cisco.com Received: from mail.ietf.org ([4.31.198.44]) by localhost (ietfa.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id HDBgXUUKgNi0 for ; Wed, 26 Apr 2017 23:48:25 -0700 (PDT) Received: from rcdn-iport-4.cisco.com (rcdn-iport-4.cisco.com [173.37.86.75]) (using TLSv1.2 with cipher DHE-RSA-SEED-SHA (128/128 bits)) (No client certificate requested) by ietfa.amsl.com (Postfix) with ESMTPS id 67A681294A8 for ; Wed, 26 Apr 2017 23:48:25 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=cisco.com; i=@cisco.com; l=12444; q=dns/txt; s=iport; t=1493275705; x=1494485305; h=from:to:subject:date:message-id: content-transfer-encoding:mime-version; bh=tp7zdvIhO9YVIi40aETNMdLWnRr+ZwgGMfCEL0NktCI=; b=XNWeZaolejmARqbC6Rts0BvVMDzeazCvuZw/lG2eD2PYgcZOX1h+08Mr BGaeGsmKGvTwi/nJ+pyjZdeJ78Zy2PJ85YgXZtG/DqoiKej0Sc45dMFfW PGmRaERFfy6UY//Ua1rfMklWi5sDGBoYaYB1AXK0qM42UoxachO+kFuo0 U=; X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: =?us-ascii?q?A0DMAAAAlAFZ/4kNJK1DGhkBAQEBAQEBA?= =?us-ascii?q?QEBAQcBAQEBAYNVYYEMB415pzWCDy6KJj8YAQIBAQEBAQEBayiFOQpHHQEaAhw?= =?us-ascii?q?MPBcPAQQbihMOMZtwkXg6g1WHTQEBAQEBAQEDAQEBAQEBAQEBH4RDghGBXoRWg?= =?us-ascii?q?WSBIgEBaYISgmsaBYk9hlJCjH8BhxiLaoILhTeKJYh0izIBHziBB2UVRIRtHIF?= =?us-ascii?q?jdQGGRoEhgQ0BAQE?= X-IronPort-AV: E=Sophos;i="5.37,257,1488844800"; d="scan'208";a="238241916" Received: from alln-core-4.cisco.com ([173.36.13.137]) by rcdn-iport-4.cisco.com with ESMTP/TLS/DHE-RSA-AES256-SHA; 27 Apr 2017 06:48:24 +0000 Received: from XCH-RCD-005.cisco.com (xch-rcd-005.cisco.com [173.37.102.15]) by alln-core-4.cisco.com (8.14.5/8.14.5) with ESMTP id v3R6mNBA005322 (version=TLSv1/SSLv3 cipher=AES256-SHA bits=256 verify=FAIL) for ; Thu, 27 Apr 2017 06:48:24 GMT Received: from xch-rcd-001.cisco.com (173.37.102.11) by XCH-RCD-005.cisco.com (173.37.102.15) with Microsoft SMTP Server (TLS) id 15.0.1210.3; Thu, 27 Apr 2017 01:48:23 -0500 Received: from xch-rcd-001.cisco.com ([173.37.102.11]) by XCH-RCD-001.cisco.com ([173.37.102.11]) with mapi id 15.00.1210.000; Thu, 27 Apr 2017 01:48:23 -0500 From: "Pascal Thubert (pthubert)" To: lp-wan Thread-Topic: Minutes, LPWAN Interim meeting, April 26th, 2017 Thread-Index: AdK/IQsBQep0ofayTqCA3GbXbOC7/g== Date: Thu, 27 Apr 2017 06:47:41 +0000 Deferred-Delivery: Thu, 27 Apr 2017 06:47:35 +0000 Message-ID: <7ee58e3c7c314669bb740797e4309f21@XCH-RCD-001.cisco.com> Accept-Language: fr-FR, en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: x-ms-exchange-transport-fromentityheader: Hosted x-originating-ip: [10.55.22.4] Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 Archived-At: Subject: [lp-wan] Minutes, LPWAN Interim meeting, April 26th, 2017 X-BeenThere: lp-wan@ietf.org X-Mailman-Version: 2.1.22 Precedence: list List-Id: "Low-Power Wide Area Networking \(LP-WAN\), also known as LPWA or Low-Rate WAN \(LR-WAN\)" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 27 Apr 2017 06:48:27 -0000 Disclaimer ------------- This is a draft. The final minutes are published on the IETF website and are maintained ther= e.=20 If you have IPR to announce or changes to propose to the minutes, please co= ntact the chairs. Connection details ----------------------- .=A0=A0=A0 Date: 7-8am US Pacific, 4pm CEST: http://www.worldtimebuddy.com/= ?qm=3D1&lid=3D100,12,5392171,1850147&h=3D100&date=3D2017-04-26&sln=3D14-15= =A0 .=A0=A0=A0 Webex Link: https://cisco.webex.com/ciscosales/j.php?MTID=3Dme7f= 536292c568c696a054a7ff7ef0746=A0 .=A0=A0=A0 Meeting number (Access code): 203 453 401=A0 .=A0=A0=A0 Meeting password: chicalors (24422567 from phones) Agenda ---------- .=A0=A0=A0 [7:05]Administrivia=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0= =A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0= =A0=A0=A0=A0 [ 2min]=A0 =A0=A0=A0 o=A0=A0=A0 Note-Well, Blue Sheets, Scribes, Agenda Bashing=A0=A0 =A0=A0=A0 o=A0=A0=A0 Milestones .=A0=A0=A0 [7:07] Status of drafts (chairs)=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0= =A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0 [ 5min]=A0 =A0=A0=A0 o=A0=A0=A0 Close to WGLC? .=A0=A0=A0 [7:12] LPWAN Overview=A0 (Steve)=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0= =A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0 [10mi= n] .=A0=A0=A0 [7:22] SCHC IP/UDP Compression (Laurent, Ana)=A0=A0=A0=A0=A0=A0= =A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0 [15min]=A0 .=A0=A0=A0 [7:37] SCHC Fragmentation (Carles)=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0= =A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0 [15min] .=A0=A0=A0 [7:52] SCHC CoAP (Laurent)=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0= =A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0= [ 5min] .=A0=A0=A0 [7:57] AOB=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0= =A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0= =A0=A0=A0=A0=A0=A0=A0=A0=A0=A0 [ 3min] Action Items ------------ .=A0=A0=A0 JC, DD: Review IP/UDP drafts .=A0=A0=A0 CB, DD: Review CoAP draft .=A0=A0=A0 Ana: Post to the mailing list with the terms that we want confir= med Minute takers ------------- .=A0=A0=A0 Arunprabhu Kandasamy .=A0=A0=A0 Diego Dujovne .=A0=A0=A0 Pascal Thubert Attendees --------- .=A0=A0=A0 Stephen Farrell .=A0=A0=A0 Ana minaburo .=A0=A0=A0 Laurent Toutain .=A0=A0=A0 Alex Pelov .=A0=A0=A0 Julien Catalano .=A0=A0=A0 Sumankumar Panchal .=A0=A0=A0 Tomas Bolckmans .=A0=A0=A0 Carsten Bormann .=A0=A0=A0 Arunprabhu Kandasamy .=A0=A0=A0 Hannes Tschofenig .=A0=A0=A0 Carles Gomez .=A0=A0=A0 Uday Davuluru .=A0=A0=A0 Diego Dujovne=A0 .=A0=A0=A0 Juan Carlos Zuniga .=A0=A0=A0 Paul Duffy .=A0=A0=A0 A Paventhan .=A0=A0=A0 Friedhelm Rodermund .=A0=A0=A0 Juan Carlos Zuniga Minutes ------- .=A0=A0=A0 [7:05]Administrivia=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0= =A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0= =A0=A0=A0=A0 [ 2min]=A0 =A0=A0=A0 o=A0=A0=A0 Note-Well, Blue Sheets, Scribes, Agenda Bashing=A0=A0 =A0=A0=A0=A0=A0=A0=A0=A0 *=A0=A0 =A0=A0=A0 o=A0=A0=A0 Milestones =A0=A0=A0=A0 =A0=A0=A0=A0=A0=A0=A0=A0 *=A0=A0 .=A0=A0=A0 [7:07] Status of drafts (chairs)=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0= =A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0 [ 5min]=A0 =A0=A0=A0 o=A0=A0=A0 Close to WGLC? =A0=A0=A0 AP: Discuss the current drafts. =A0=A0=A0 PT: Changed the SCHC to 20mins for Carles to have enough time = to explain =A0=A0=A0 AP: Two chartered items. =A0=A0=A0 AP:=A0=A0 Next Deadline :LPWAN specification to IESG=A0 =A0=A0=A0 PT: Last call for LPWAN overview? we are late.=A0 =A0=A0=A0 Keep the structure as it is now.=A0 =A0=A0=A0 PT: IETF 98 Action items overview. Announce discussion of SCHC= IP/UDP/CoAP structure. Follow-up to=A0 =A0=A0=A0 PT: Identified reviewers for Coap draft?=A0 =A0=A0=A0=A0=A0=A0=A0 JCZ: agreed to review ip udp draft. =A0=A0=A0=A0=A0=A0=A0 PT: JCZ and Diego are the indepth reviewer for lpwan = group =A0=A0=A0=A0=A0=A0=A0 PT: WiSUN contribution follow up =A0=A0=A0=A0=A0=A0=A0 SCHC CoAP draft reviewers: Carsten, Diego =A0=A0=A0=A0=A0=A0=A0 PT: To Paul Duffy: we have always considered WI-SUN, = Bob has not yet delivered. =A0=A0=A0=A0 =A0=A0 PT: Paul volunteering for the contribution from WiSUN =A0=A0=A0=A0 =A0=A0 PT: publish anyway documents , from Paul Diffy. . =A0=A0=A0 Ana: discussion on the architecture - do we need to have one? D= o we agree on the terminology? =A0=A0=A0=A0 SF: WiSUN slide: no references on the Slide=A0 =A0=A0=A0 =A0 PD: Can't=A0 reference the spec, due to confidentiality. Can= 't allow direct access to technical specification. =A0=A0=A0 =A0 PT: Sigfox progressing with ETSI=A0 =A0=A0=A0=A0 SF: contact offline with PD for references?=A0 =A0=A0=A0 https://tools.ietf.org/html/draft-ietf-lpwan-overview-= 01#section-2.4 SF: chairs to ask the working group for the draft's status =20 .=A0=A0=A0 [7:12] LPWAN Overview=A0 (Stephen)=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0= =A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0 [<<10= min] =A0=A0=A0 o=A0=A0=A0 [Stephen]:=A0 =A0=A0=A0=A0=A0=A0=A0=A0 *=A0 Issues to chat about:=A0 =A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0 - Wi-SUN references? If none, then wha= t? . =A0=A0=A0=A0=A0=A0=A0=A0 options: 1) ok as-is without refs 2) remove sect= ion 2.4 3) something else =A0=A0=A0=A0=A0=A0=A0=A0=A0 Other issues can be taken to list before WGLC a= nd/or while editing -02 (next week) . Editor will propose change or PR to list for stuff like that =A0=A0=A0=A0=A0=A0=A0=A0 .=A0=A0=A0 [7:22] SCHC IP/UDP Compression (Laurent, Ana)=A0=A0=A0=A0=A0=A0= =A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0 [15min]=A0 =A0=A0=A0=A0=A0 AP: Terminology needs to be cleared out. Ana: wants to know if everybody agrees with the naming terminologies = with the schc. =A0=A0=A0=A0 PT: List the terms which are casting stone. Which are relevan= t on the mail. =A0=A0=A0=A0 LT: on the SCHC draft there is an architecture description gra= ph =A0=A0=A0=A0 PT: Ana will take 4 or 5 more important items to give the poss= ible terms, Put the terminologies on the mailing list. =A0=A0=A0=A0 Ana: Third version of the draft. Input from the list -> change= s made for SCHC compression. =A0=A0=A0=A0 Do you agree to put a direction of the compression on UDP/IP c= ompression? Bidirectional? =A0=A0=A0=A0 At least for all the fields of the header,(at least hoplimit) = could change from uplink to downlink =A0=A0=A0=A0 How could this affect the compression? =A0=A0=A0=A0 PT: It makes sense to put this rule to SCHC, so all the rules = are described in one document =A0=A0=A0=A0 JC: Directional? Could also apply it to be ?? (bidirectional?)= =A0 =A0=A0=A0=A0 Ana: IP/UDP Bidirectional, explicitly bidirectional or nothing= , and assume that it will be bidirectional. CoAP says it will be (bi?)direc= tional =A0=A0=A0=A0 PT: having IP draft with directionality would be a good thing. =A0=A0=A0=A0 JC: Is it more generic? looks alie a good idea isf there is no= cost. Do we lose anything by doing this?=A0 =A0=A0=A0=A0 Ana: Any quesstion for the position: List of values to use, li= ke IP address, which we can use for each device. It is added to the UDP/IP = draft as directional =A0=A0=A0=A0 Ana:=A0 introduced for Coap to compress the URI; direction and= postion would be important? =A0=A0=A0=A0 LT: Position will be 1 on all fields on UDP/IP=A0 =A0=A0=A0=A0=A0PT: if we have Routing headaer; position for extension heade= r default to 1? =A0=A0=A0=A0 LT: We don't look at extension in the draft. =A0=A0=A0=A0 PT: A second release can add this option on the header. We alr= eady have the method. =A0=A0=A0=A0 Ana: using LSB, Optimizations for the compression? =A0=A0=A0=A0 LT: less useful for IP/UDP; coap it is useful.=A0 =A0=A0=A0=A0 PT: Do you think we are reaching a stable state on this docume= nt? =A0=A0=A0=A0 LT: yes, personally.=A0 =A0=A0=A0=A0 PT: Two official reviewers, when to trigger them? =A0=A0=A0=A0 LT: it is almost ready. =A0=A0=A0=A0 PT: Publish and launch last call =A0=A0=A0=A0=A0 LT: it is on the github, can issue 03 on request. =A0=A0=A0=A0 Wait the fragmentation part to trigger the reviewers= ?=20 PT: we can start reviewing the rest .=A0=A0=A0 [7:37] SCHC Fragmentation (Carles)=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0= =A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0 [20min] CG: date has been based on the meetings and feedback from the mailin= g list. CG: first update: new section on reliability option on fragment deli= very. CG: comments on posible use of NACK. bitmap provide information abou= t lost fragment CG: New terms used on github replacing the old names. CG: No ACK not tied to Packe/window mode. CG: one issue: if ACK is lost then sender assumes is successful.=A0 CG: WM/ ACk on error, no use case identified ? PT: design index for each packets in window. more bits means larger = the window; draft doesn't say how many bits, upto the decision of the imp= lementor. CG: Whether will be possible to interleave fragments with different = IPv6 packets? Datagram-Tag will be used to distiinguish these packets=A0=A0=A0=A0 CG:will it be possible to allow frag/ no frag ipv6 datagrams. ? answ= er is YES! Rule ID for datagrams of each IPv6 packet are different LT: Likes the decision to add DTag field. Include D-Tag field in the ack to distinguish the fragment what happens when last fragment is lost? The receiver does not receive the last fragment the ACK is not trigger, so= =A0 Timer will be used to send the Ack on Error Ana: Timer will be used at the same time when there is no error?=A0 CG: another timer for ACK always option. CG: Ack always: start timer upon sending last fragments, and timer e= xpiration when no ACK. LT: 2 cases are almost same behaviour. agree with the current propos= al. PT: Timer value is dependent on the direction(sender as device/netwo= rk) and technology.=A0 CG: to be defined in the technology specific profiles? CG: proper name of the timer in each case to be added=A0 CG: Packet mode problem: Ambiguity on the receiver side when retrans= mission of the fragments The idea is to renumber the fragments in the retransmission CB: What case are we optimizing 90% or 10% loss?; be less optimal, l= ooks good for one round of retransmisison. PT: need a format for the tries and retries. LT: what happen when you retries the retries PT: the problem will be when crossing the renumbering fragments betw= een the =E9nd and the next retries=A0 CB: timer controlled transmission introduces ambiguity. PT: echoes Carsten CB: what range of asymmetry do we address here? 1-20, 1-80?=A0 sending the bitmap on the ack is too expensive=A0=A0=A0=A0=A0 CB: Sender has to compute something like FEC=A0 PT: Can take the discussion further in the mailing list. Asymmetric is more about the number of packets, and not the n= umber of bits Prove that we can live with the renumbering? if not introduce= the asymmetric level PT: don't think bit map would be too expensive. JCZ: cost may be different depending upon the direction. PT: address the problem of sending less bits than the bit map CG: pending items ; main questions are solved or some proposal avail= able. PT: prepare the document for publication, needs to start the review = process. =20 .=A0=A0=A0 [7:52] SCHC CoAP (Laurent)=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0= =A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0 [ = 5min] LT: Nothing for CoaP; can be asked in the mailing list. see if we ca= n apply compression schemes for CoMI, Lightweight M2M. AP: working on CoMI. still last minute modification. to be resolved = next week and can provide update in the next interim. .=A0=A0=A0 [7:57] AOB=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0= =A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0= =A0=A0=A0=A0=A0=A0=A0=A0=A0=A0 [ 3min] The chairs=A0; From nobody Thu Apr 27 01:18:00 2017 Return-Path: X-Original-To: lp-wan@ietfa.amsl.com Delivered-To: lp-wan@ietfa.amsl.com Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id 9ACBE1294CE for ; Thu, 27 Apr 2017 01:17:58 -0700 (PDT) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -3.799 X-Spam-Level: X-Spam-Status: No, score=-3.799 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, HTML_MESSAGE=0.001, RCVD_IN_DNSWL_MED=-2.3, RCVD_IN_SORBS_SPAM=0.5, SPF_PASS=-0.001, URIBL_BLOCKED=0.001] autolearn=ham autolearn_force=no Authentication-Results: ietfa.amsl.com (amavisd-new); dkim=pass (1024-bit key) header.d=imt-atlantique.fr Received: from mail.ietf.org ([4.31.198.44]) by localhost (ietfa.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id WYZHDDi_y3BL for ; Thu, 27 Apr 2017 01:17:55 -0700 (PDT) Received: from zproxy220.enst-bretagne.fr (zproxy220.enst-bretagne.fr [192.108.117.9]) by ietfa.amsl.com (Postfix) with ESMTP id 3B0861243FE for ; Thu, 27 Apr 2017 01:17:54 -0700 (PDT) Received: from localhost (localhost [127.0.0.1]) by zproxy220.enst-bretagne.fr (Postfix) with ESMTP id B811030404 for ; Thu, 27 Apr 2017 10:17:53 +0200 (CEST) Received: from zproxy220.enst-bretagne.fr ([127.0.0.1]) by localhost (zproxy220.enst-bretagne.fr [127.0.0.1]) (amavisd-new, port 10032) with ESMTP id IOyWy2-xX9sp for ; Thu, 27 Apr 2017 10:17:52 +0200 (CEST) Received: from localhost (localhost [127.0.0.1]) by zproxy220.enst-bretagne.fr (Postfix) with ESMTP id 6886430403 for ; Thu, 27 Apr 2017 10:17:52 +0200 (CEST) DKIM-Filter: OpenDKIM Filter v2.9.2 zproxy220.enst-bretagne.fr 6886430403 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=imt-atlantique.fr; s=50EA75E8-DE22-11E6-A6DE-0662BA474D24; t=1493281072; bh=MIPT3hgWOLcLxTwCO9LgWUWF9fKf6sPh8kZjMWLJ424=; h=MIME-Version:From:Date:Message-ID:Subject:To:Content-Type; b=YqsnO2zypOMkGG/6mD7+Y3M6h/BCgWs+hIYgRgragvDs6cdXcjmNXZVrprTon8LM2 Rb9bi3sQ9kYV9YnSggHhTGsTBOECSm8qvPSbs7Q/UWyMud45DPPHlRo2dGjx0uCSuR 7vGKohoelkCsX/k+4gF5uiXQ2eRU64GVQaiokoUo= X-Virus-Scanned: amavisd-new at zproxy220.enst-bretagne.fr Received: from zproxy220.enst-bretagne.fr ([127.0.0.1]) by localhost (zproxy220.enst-bretagne.fr [127.0.0.1]) (amavisd-new, port 10026) with ESMTP id SOIG0sZ6zweu for ; Thu, 27 Apr 2017 10:17:52 +0200 (CEST) Received: from mail-qt0-f174.google.com (mail-qt0-f174.google.com [209.85.216.174]) by zproxy220.enst-bretagne.fr (Postfix) with ESMTPSA id D8948303DF for ; Thu, 27 Apr 2017 10:17:51 +0200 (CEST) Received: by mail-qt0-f174.google.com with SMTP id y33so20036296qta.2 for ; Thu, 27 Apr 2017 01:17:51 -0700 (PDT) X-Gm-Message-State: AN3rC/6Q/ks8cP3mnSkhTnbt2RvV3OfND/DdWlCkvBihjH0RLmvuIrfN i6ExXrv5Mtnya6i9nKx5ornImFe53w== X-Received: by 10.200.51.215 with SMTP id d23mr4112284qtb.55.1493281070562; Thu, 27 Apr 2017 01:17:50 -0700 (PDT) MIME-Version: 1.0 Received: by 10.12.132.99 with HTTP; Thu, 27 Apr 2017 01:17:10 -0700 (PDT) In-Reply-To: <7ee58e3c7c314669bb740797e4309f21@XCH-RCD-001.cisco.com> References: <7ee58e3c7c314669bb740797e4309f21@XCH-RCD-001.cisco.com> From: Laurent Toutain Date: Thu, 27 Apr 2017 10:17:10 +0200 X-Gmail-Original-Message-ID: Message-ID: To: "Pascal Thubert (pthubert)" Cc: lp-wan Content-Type: multipart/alternative; boundary=001a113d71e2c2c99e054e2197e8 Archived-At: Subject: Re: [lp-wan] Minutes, LPWAN Interim meeting, April 26th, 2017 X-BeenThere: lp-wan@ietf.org X-Mailman-Version: 2.1.22 Precedence: list List-Id: "Low-Power Wide Area Networking \(LP-WAN\), also known as LPWA or Low-Rate WAN \(LR-WAN\)" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 27 Apr 2017 08:17:59 -0000 --001a113d71e2c2c99e054e2197e8 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: quoted-printable Salut Deux remarques : - Juan Carlos apparait deux fois dans les attendies - pour les reviewers des drafts, DD apparait deux fois IPv6 et CoAP, dans mes souvenir il y avait un autre nom sur le PPT. Laurent On Thu, Apr 27, 2017 at 8:47 AM, Pascal Thubert (pthubert) < pthubert@cisco.com> wrote: > Disclaimer > ------------- > > This is a draft. > The final minutes are published on the IETF website and are maintained > there. > If you have IPR to announce or changes to propose to the minutes, please > contact the chairs. > > > Connection details > ----------------------- > . Date: 7-8am US Pacific, 4pm CEST: http://www.worldtimebuddy.com/ > ?qm=3D1&lid=3D100,12,5392171,1850147&h=3D100&date=3D2017-04-26&sln=3D14-1= 5 > . Webex Link: https://cisco.webex.com/ciscosales/j.php?MTID=3D > me7f536292c568c696a054a7ff7ef0746 > . Meeting number (Access code): 203 453 401 > . Meeting password: chicalors (24422567 from phones) > > > Agenda > ---------- > . [7:05]Administrivia [ > 2min] > o Note-Well, Blue Sheets, Scribes, Agenda Bashing > o Milestones > . [7:07] Status of drafts (chairs) [ > 5min] > o Close to WGLC? > . [7:12] LPWAN Overview (Steve) > [10min] > . [7:22] SCHC IP/UDP Compression (Laurent, Ana) > [15min] > . [7:37] SCHC Fragmentation (Carles) > [15min] > . [7:52] SCHC CoAP (Laurent) [ > 5min] > . [7:57] AOB [ > 3min] > > Action Items > ------------ > . JC, DD: Review IP/UDP drafts > . CB, DD: Review CoAP draft > . Ana: Post to the mailing list with the terms that we want confirmed > > > Minute takers > ------------- > . Arunprabhu Kandasamy > . Diego Dujovne > . Pascal Thubert > > Attendees > --------- > . Stephen Farrell > . Ana minaburo > . Laurent Toutain > . Alex Pelov > . Julien Catalano > . Sumankumar Panchal > . Tomas Bolckmans > . Carsten Bormann > . Arunprabhu Kandasamy > . Hannes Tschofenig > . Carles Gomez > . Uday Davuluru > . Diego Dujovne > . Juan Carlos Zuniga > . Paul Duffy > . A Paventhan > . Friedhelm Rodermund > . Juan Carlos Zuniga > > > Minutes > ------- > . [7:05]Administrivia [ > 2min] > o Note-Well, Blue Sheets, Scribes, Agenda Bashing > * > o Milestones > > * > . [7:07] Status of drafts (chairs) [ > 5min] > o Close to WGLC? > AP: Discuss the current drafts. > PT: Changed the SCHC to 20mins for Carles to have enough time to > explain > AP: Two chartered items. > AP: Next Deadline :LPWAN specification to IESG > PT: Last call for LPWAN overview? we are late. > Keep the structure as it is now. > PT: IETF 98 Action items overview. Announce discussion of SCHC > IP/UDP/CoAP structure. Follow-up to > PT: Identified reviewers for Coap draft? > JCZ: agreed to review ip udp draft. > PT: JCZ and Diego are the indepth reviewer for lpwan group > PT: WiSUN contribution follow up > SCHC CoAP draft reviewers: Carsten, Diego > PT: To Paul Duffy: we have always considered WI-SUN, Bob has not > yet delivered. > PT: Paul volunteering for the contribution from WiSUN > PT: publish anyway documents , from Paul Diffy. > . Ana: discussion on the architecture - do we need to have one? Do we > agree on the terminology? > SF: WiSUN slide: no references on the Slide > PD: Can't reference the spec, due to confidentiality. Can't allow > direct access to technical specification. > PT: Sigfox progressing with ETSI > SF: contact offline with PD for references? > https://tools.ietf.org/html/draft-ietf-lpwan-overview-01# > section-2.4 > SF: chairs to ask the working group for the draft's status > > . [7:12] LPWAN Overview (Stephen) > [<<10min] > o [Stephen]: > * Issues to chat about: > - Wi-SUN references? If none, then what? > . options: 1) ok as-is without refs 2) remove section 2.4 3) > something else > Other issues can be taken to list before WGLC and/or while > editing -02 (next week) > . Editor will propose change or PR to list for stuff like that > > . [7:22] SCHC IP/UDP Compression (Laurent, Ana) > [15min] > AP: Terminology needs to be cleared out. > Ana: wants to know if everybody agrees with the naming terminologie= s > with the schc. > PT: List the terms which are casting stone. Which are relevant on > the mail. > LT: on the SCHC draft there is an architecture description graph > PT: Ana will take 4 or 5 more important items to give the possible > terms, Put the terminologies on the mailing list. > Ana: Third version of the draft. Input from the list -> changes made > for SCHC compression. > Do you agree to put a direction of the compression on UDP/IP > compression? Bidirectional? > At least for all the fields of the header,(at least hoplimit) could > change from uplink to downlink > How could this affect the compression? > PT: It makes sense to put this rule to SCHC, so all the rules are > described in one document > JC: Directional? Could also apply it to be ?? (bidirectional?) > Ana: IP/UDP Bidirectional, explicitly bidirectional or nothing, and > assume that it will be bidirectional. CoAP says it will be (bi?)direction= al > PT: having IP draft with directionality would be a good thing. > JC: Is it more generic? looks alie a good idea isf there is no cost. > Do we lose anything by doing this? > Ana: Any quesstion for the position: List of values to use, like IP > address, which we can use for each device. It is added to the UDP/IP draf= t > as directional > Ana: introduced for Coap to compress the URI; direction and postion > would be important? > LT: Position will be 1 on all fields on UDP/IP > PT: if we have Routing headaer; position for extension header defaul= t > to 1? > LT: We don't look at extension in the draft. > PT: A second release can add this option on the header. We already > have the method. > Ana: using LSB, Optimizations for the compression? > LT: less useful for IP/UDP; coap it is useful. > PT: Do you think we are reaching a stable state on this document? > LT: yes, personally. > PT: Two official reviewers, when to trigger them? > LT: it is almost ready. > PT: Publish and launch last call > LT: it is on the github, can issue 03 on request. > Wait the fragmentation part to trigger the reviewers ? > PT: we can start reviewing the rest > . [7:37] SCHC Fragmentation (Carles) > [20min] > CG: date has been based on the meetings and feedback from the > mailing list. > CG: first update: new section on reliability option on fragment > delivery. > CG: comments on posible use of NACK. bitmap provide information > about lost fragment > CG: New terms used on github replacing the old names. > CG: No ACK not tied to Packe/window mode. > CG: one issue: if ACK is lost then sender assumes is successful. > CG: WM/ ACk on error, no use case identified ? > PT: design index for each packets in window. more bits means large= r > the window; > draft doesn't say how many bits, upto the decision of the > implementor. > CG: Whether will be possible to interleave fragments with differen= t > IPv6 packets? > Datagram-Tag will be used to distiinguish these packets > CG:will it be possible to allow frag/ no frag ipv6 datagrams. ? > answer is YES! > Rule ID for datagrams of each IPv6 packet are different > LT: Likes the decision to add DTag field. > Include D-Tag field in the ack to distinguish the fragment > what happens when last fragment is lost? > The receiver does not receive the last fragment the ACK is not trigger, s= o > Timer will be used to send the Ack on Error > Ana: Timer will be used at the same time when there is no error? > CG: another timer for ACK always option. > CG: Ack always: start timer upon sending last fragments, and timer > expiration when no ACK. > LT: 2 cases are almost same behaviour. agree with the current > proposal. > PT: Timer value is dependent on the direction(sender as > device/network) and technology. > CG: to be defined in the technology specific profiles? > CG: proper name of the timer in each case to be added > CG: Packet mode problem: Ambiguity on the receiver side when > retransmission of the fragments > The idea is to renumber the fragments in the retransmission > CB: What case are we optimizing 90% or 10% loss?; be less optimal, > looks good for one round of retransmisison. > PT: need a format for the tries and retries. > LT: what happen when you retries the retries > PT: the problem will be when crossing the renumbering fragments > between the =C3=A9nd and the next retries > CB: timer controlled transmission introduces ambiguity. > PT: echoes Carsten > CB: what range of asymmetry do we address here? 1-20, 1-80? > sending the bitmap on the ack is too expensive > CB: Sender has to compute something like FEC > PT: Can take the discussion further in the mailing list. > Asymmetric is more about the number of packets, and not the > number of bits > Prove that we can live with the renumbering? if not > introduce the asymmetric level > PT: don't think bit map would be too expensive. > JCZ: cost may be different depending upon the direction. > PT: address the problem of sending less bits than the bit map > CG: pending items ; main questions are solved or some proposal > available. > PT: prepare the document for publication, needs to start the revie= w > process. > > . [7:52] SCHC CoAP (Laurent) [ > 5min] > LT: Nothing for CoaP; can be asked in the mailing list. see if we > can apply compression schemes for CoMI, Lightweight M2M. > AP: working on CoMI. still last minute modification. to be resolve= d > next week and can provide update in the next interim. > > . [7:57] AOB [ > 3min] > > The chairs ; > > _______________________________________________ > lp-wan mailing list > lp-wan@ietf.org > https://www.ietf.org/mailman/listinfo/lp-wan > --001a113d71e2c2c99e054e2197e8 Content-Type: text/html; charset=UTF-8 Content-Transfer-Encoding: quoted-printable
Salut

Deux remarques :
- Juan Carlos apparait deux fois dans les attendies
- p= our les reviewers des drafts, DD apparait=C2=A0 deux fois IPv6 et CoAP, dan= s mes souvenir il y avait un autre nom sur le PPT.

Laurent
=

On Thu, Apr= 27, 2017 at 8:47 AM, Pascal Thubert (pthubert) <pthubert@cisco.com&g= t; wrote:
Disclaimer
-------------

This is a draft.
The final minutes are published on the IETF website and are maintained ther= e.
If you have IPR to announce or changes to propose to the minutes, please co= ntact the chairs.


Connection details
-----------------------
.=C2=A0=C2=A0=C2=A0 Date: 7-8am US Pacific, 4pm CEST: h= ttp://www.worldtimebuddy.com/?qm=3D1&lid=3D100,12,5392171,185= 0147&h=3D100&date=3D2017-04-26&sln=3D14-15=C2=A0
.=C2=A0=C2=A0=C2=A0 Webex Link: https://cisco.webex.com/ciscosales/j.php?MTID=3Dme7f= 536292c568c696a054a7ff7ef0746=C2=A0
.=C2=A0=C2=A0=C2=A0 Meeting number (Access code): 203 453 401=C2=A0
.=C2=A0=C2=A0=C2=A0 Meeting password: chicalors (24422567 from phones)


Agenda
----------
.=C2=A0=C2=A0=C2=A0 [7:05]Administrivia=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0= =C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2= =A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0= =C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2= =A0=C2=A0=C2=A0 [ 2min]=C2=A0
=C2=A0=C2=A0=C2=A0 o=C2=A0=C2=A0=C2=A0 Note-Well, Blue Sheets, Scribes, Age= nda Bashing=C2=A0=C2=A0
=C2=A0=C2=A0=C2=A0 o=C2=A0=C2=A0=C2=A0 Milestones
.=C2=A0=C2=A0=C2=A0 [7:07] Status of drafts (chairs)=C2=A0=C2=A0=C2=A0=C2= =A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0= =C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2= =A0=C2=A0=C2=A0=C2=A0 [ 5min]=C2=A0
=C2=A0=C2=A0=C2=A0 o=C2=A0=C2=A0=C2=A0 Close to WGLC?
.=C2=A0=C2=A0=C2=A0 [7:12] LPWAN Overview=C2=A0 (Steve)=C2=A0=C2=A0=C2=A0= =C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2= =A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0= =C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0 [10min]
.=C2=A0=C2=A0=C2=A0 [7:22] SCHC IP/UDP Compression (Laurent, Ana)=C2=A0=C2= =A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0= =C2=A0=C2=A0=C2=A0=C2=A0 [15min]=C2=A0
.=C2=A0=C2=A0=C2=A0 [7:37] SCHC Fragmentation (Carles)=C2=A0=C2=A0=C2=A0=C2= =A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0= =C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2= =A0=C2=A0 [15min]
.=C2=A0=C2=A0=C2=A0 [7:52] SCHC CoAP (Laurent)=C2=A0=C2=A0=C2=A0=C2=A0=C2= =A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0= =C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2= =A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0 [ 5min]
.=C2=A0=C2=A0=C2=A0 [7:57] AOB=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2= =A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0= =C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2= =A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0= =C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0 [ 3min]

Action Items
------------
.=C2=A0=C2=A0=C2=A0 JC, DD: Review IP/UDP drafts
.=C2=A0=C2=A0=C2=A0 CB, DD: Review CoAP draft
.=C2=A0=C2=A0=C2=A0 Ana: Post to the mailing list with the terms that we wa= nt confirmed


Minute takers
-------------
.=C2=A0=C2=A0=C2=A0 Arunprabhu Kandasamy
.=C2=A0=C2=A0=C2=A0 Diego Dujovne
.=C2=A0=C2=A0=C2=A0 Pascal Thubert

Attendees
---------
.=C2=A0=C2=A0=C2=A0 Stephen Farrell
.=C2=A0=C2=A0=C2=A0 Ana minaburo
.=C2=A0=C2=A0=C2=A0 Laurent Toutain
.=C2=A0=C2=A0=C2=A0 Alex Pelov
.=C2=A0=C2=A0=C2=A0 Julien Catalano
.=C2=A0=C2=A0=C2=A0 Sumankumar Panchal
.=C2=A0=C2=A0=C2=A0 Tomas Bolckmans
.=C2=A0=C2=A0=C2=A0 Carsten Bormann
.=C2=A0=C2=A0=C2=A0 Arunprabhu Kandasamy
.=C2=A0=C2=A0=C2=A0 Hannes Tschofenig
.=C2=A0=C2=A0=C2=A0 Carles Gomez
.=C2=A0=C2=A0=C2=A0 Uday Davuluru
.=C2=A0=C2=A0=C2=A0 Diego Dujovne=C2=A0
.=C2=A0=C2=A0=C2=A0 Juan Carlos Zuniga
.=C2=A0=C2=A0=C2=A0 Paul Duffy
.=C2=A0=C2=A0=C2=A0 A Paventhan
.=C2=A0=C2=A0=C2=A0 Friedhelm Rodermund
.=C2=A0=C2=A0=C2=A0 Juan Carlos Zuniga


Minutes
-------
.=C2=A0=C2=A0=C2=A0 [7:05]Administrivia=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0= =C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2= =A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0= =C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2= =A0=C2=A0=C2=A0 [ 2min]=C2=A0
=C2=A0=C2=A0=C2=A0 o=C2=A0=C2=A0=C2=A0 Note-Well, Blue Sheets, Scribes, Age= nda Bashing=C2=A0=C2=A0
=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0 *=C2=A0=C2=A0
=C2=A0=C2=A0=C2=A0 o=C2=A0=C2=A0=C2=A0 Milestones
=C2=A0=C2=A0=C2=A0=C2=A0
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.=C2=A0=C2=A0=C2=A0 [7:07] Status of drafts (chairs)=C2=A0=C2=A0=C2=A0=C2= =A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0= =C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2= =A0=C2=A0=C2=A0=C2=A0 [ 5min]=C2=A0
=C2=A0=C2=A0=C2=A0 o=C2=A0=C2=A0=C2=A0 Close to WGLC?
=C2=A0 =C2=A0=C2=A0=C2=A0=C2=A0 AP: Discuss the current drafts.
=C2=A0 =C2=A0=C2=A0=C2=A0=C2=A0 PT: Changed the SCHC to 20mins for Carles t= o have enough time to explain
=C2=A0 =C2=A0=C2=A0=C2=A0=C2=A0 AP: Two chartered items.
=C2=A0 =C2=A0=C2=A0=C2=A0=C2=A0 AP:=C2=A0=C2=A0 Next Deadline :LPWAN specif= ication to IESG=C2=A0
=C2=A0 =C2=A0=C2=A0=C2=A0=C2=A0 PT: Last call for LPWAN overview? we are la= te.=C2=A0
=C2=A0 =C2=A0=C2=A0=C2=A0=C2=A0 Keep the structure as it is now.=C2=A0
=C2=A0 =C2=A0=C2=A0=C2=A0=C2=A0 PT: IETF 98 Action items overview. Announce= discussion of SCHC IP/UDP/CoAP structure. Follow-up to=C2=A0
=C2=A0 =C2=A0=C2=A0=C2=A0=C2=A0 PT: Identified reviewers for Coap draft?=C2= =A0
=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0 JCZ: agreed to review ip udp dra= ft.
=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0 PT: JCZ and Diego are the indept= h reviewer for lpwan group
=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0 PT: WiSUN contribution follow up=
=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0 SCHC CoAP draft reviewers: Carst= en, Diego
=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0 PT: To Paul Duffy: we have alway= s considered WI-SUN, Bob has not yet delivered.
=C2=A0=C2=A0=C2=A0=C2=A0 =C2=A0=C2=A0 PT: Paul volunteering for the contrib= ution from WiSUN
=C2=A0=C2=A0=C2=A0=C2=A0 =C2=A0=C2=A0 PT: publish anyway documents , from P= aul Diffy.
. =C2=A0=C2=A0=C2=A0 Ana: discussion on the architecture - do we need to ha= ve one? Do we agree on the terminology?
=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0 =C2=A0SF: WiSUN slide: no references on the = Slide=C2=A0
=C2=A0=C2=A0=C2=A0=C2=A0 =C2=A0 PD: Can't=C2=A0 reference the spec, due= to confidentiality. Can't allow direct access to technical specificati= on.
=C2=A0=C2=A0=C2=A0=C2=A0 =C2=A0 PT: Sigfox progressing with ETSI=C2=A0
=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0 =C2=A0SF: contact offline with PD for refere= nces?=C2=A0
=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0=C2=A0=C2=A0=C2=A0 https://tools.ietf.org/html/draft-ietf-lpw= an-overview-01#section-2.4
=C2=A0 =C2=A0 =C2=A0 =C2=A0SF: chairs to ask the working group for the draf= t's status

.=C2=A0=C2=A0=C2=A0 [7:12] LPWAN Overview=C2=A0 (Stephen)=C2=A0=C2=A0=C2=A0= =C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2= =A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0= =C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0 [<<10min]
=C2=A0=C2=A0=C2=A0 o=C2=A0=C2=A0=C2=A0 [Stephen]:=C2=A0
=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0 *=C2=A0 Issues to chat abo= ut:=C2=A0
=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0 - = Wi-SUN references? If none, then what?
. =C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0 options: 1) ok as-is wit= hout refs 2) remove section 2.4 3) something else
=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0 Other issues can be = taken to list before WGLC and/or while editing -02 (next week)
. Editor will propose change or PR to list for stuff like that
=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0
.=C2=A0=C2=A0=C2=A0 [7:22] SCHC IP/UDP Compression (Laurent, Ana)=C2=A0=C2= =A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0= =C2=A0=C2=A0=C2=A0=C2=A0 [15min]=C2=A0
=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0 AP: Terminology needs to be cleared out.
=C2=A0 =C2=A0 =C2=A0 Ana: wants to know if everybody agrees with the naming= terminologies with the schc.
=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0 PT: List the terms which are casting stone. = Which are relevant on the mail.
=C2=A0=C2=A0=C2=A0=C2=A0 LT: on the SCHC draft there is an architecture des= cription graph
=C2=A0=C2=A0=C2=A0=C2=A0 PT: Ana will take 4 or 5 more important items to g= ive the possible terms, Put the terminologies on the mailing list.
=C2=A0=C2=A0=C2=A0=C2=A0 Ana: Third version of the draft. Input from the li= st -> changes made for SCHC compression.
=C2=A0=C2=A0=C2=A0=C2=A0 Do you agree to put a direction of the compression= on UDP/IP compression? Bidirectional?
=C2=A0=C2=A0=C2=A0=C2=A0 At least for all the fields of the header,(at leas= t hoplimit) could change from uplink to downlink
=C2=A0=C2=A0=C2=A0=C2=A0 How could this affect the compression?
=C2=A0=C2=A0=C2=A0=C2=A0 PT: It makes sense to put this rule to SCHC, so al= l the rules are described in one document
=C2=A0=C2=A0=C2=A0=C2=A0 JC: Directional? Could also apply it to be ?? (bid= irectional?)=C2=A0
=C2=A0=C2=A0=C2=A0=C2=A0 Ana: IP/UDP Bidirectional, explicitly bidirectiona= l or nothing, and assume that it will be bidirectional. CoAP says it will b= e (bi?)directional
=C2=A0=C2=A0=C2=A0=C2=A0 PT: having IP draft with directionality would be a= good thing.
=C2=A0=C2=A0=C2=A0=C2=A0 JC: Is it more generic? looks alie a good idea isf= there is no cost. Do we lose anything by doing this?=C2=A0
=C2=A0=C2=A0=C2=A0=C2=A0 Ana: Any quesstion for the position: List of value= s to use, like IP address, which we can use for each device. It is added to= the UDP/IP draft as directional
=C2=A0=C2=A0=C2=A0=C2=A0 Ana:=C2=A0 introduced for Coap to compress the URI= ; direction and postion would be important?
=C2=A0=C2=A0=C2=A0=C2=A0 LT: Position will be 1 on all fields on UDP/IP=C2= =A0
=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0PT: if we have Routing headaer; position for = extension header default to 1?
=C2=A0=C2=A0=C2=A0=C2=A0 LT: We don't look at extension in the draft. =C2=A0=C2=A0=C2=A0=C2=A0 PT: A second release can add this option on the he= ader. We already have the method.
=C2=A0=C2=A0=C2=A0=C2=A0 Ana: using LSB, Optimizations for the compression?=
=C2=A0=C2=A0=C2=A0=C2=A0 LT: less useful for IP/UDP; coap it is useful.=C2= =A0
=C2=A0=C2=A0=C2=A0=C2=A0 PT: Do you think we are reaching a stable state on= this document?
=C2=A0=C2=A0=C2=A0=C2=A0 LT: yes, personally.=C2=A0
=C2=A0=C2=A0=C2=A0=C2=A0 PT: Two official reviewers, when to trigger them?<= br> =C2=A0=C2=A0=C2=A0=C2=A0 LT: it is almost ready.
=C2=A0=C2=A0=C2=A0=C2=A0 PT: Publish and launch last call
=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0 LT: it is on the github, can issue 03 on req= uest.
=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0Wait the f= ragmentation part to trigger the reviewers ?
=C2=A0 =C2=A0 =C2=A0PT: we can start reviewing the rest
.=C2=A0=C2=A0=C2=A0 [7:37] SCHC Fragmentation (Carles)=C2=A0=C2=A0=C2=A0=C2= =A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0= =C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2= =A0=C2=A0 [20min]
=C2=A0 =C2=A0 =C2=A0 =C2=A0CG: date has been based on the meetings and feed= back from the mailing list.
=C2=A0 =C2=A0 =C2=A0 =C2=A0CG: first update: new section on reliability opt= ion on fragment delivery.
=C2=A0 =C2=A0 =C2=A0 =C2=A0CG: comments on posible use of NACK. bitmap prov= ide information about lost fragment
=C2=A0 =C2=A0 =C2=A0 =C2=A0CG: New terms used on github replacing the old n= ames.
=C2=A0 =C2=A0 =C2=A0 =C2=A0CG: No ACK not tied to Packe/window mode.
=C2=A0 =C2=A0 =C2=A0 =C2=A0CG: one issue: if ACK is lost then sender assume= s is successful.=C2=A0
=C2=A0 =C2=A0 =C2=A0 =C2=A0CG: WM/ ACk on error, no use case identified ? =C2=A0 =C2=A0 =C2=A0 =C2=A0PT: design index for each packets in window. mor= e bits means larger the window;
=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 draft doesn't say how = many bits, upto the decision of the implementor.
=C2=A0 =C2=A0 =C2=A0 =C2=A0CG: Whether will be possible to interleave fragm= ents with different IPv6 packets?
=C2=A0 =C2=A0 =C2=A0 =C2=A0Datagram-Tag will be used to distiinguish these = packets=C2=A0=C2=A0=C2=A0=C2=A0
=C2=A0 =C2=A0 =C2=A0 =C2=A0CG:will it be possible to allow frag/ no frag ip= v6 datagrams. ? answer is YES!
Rule ID for datagrams of each IPv6 packet are different
LT: Likes the decision to add DTag field.
Include D-Tag field in the ack to distinguish the fragment
what happens when last fragment is lost?
The receiver does not receive the last fragment the ACK is not trigger, so= =C2=A0
Timer will be used to send the Ack on Error
Ana: Timer will be used at the same time when there is no error?=C2=A0
=C2=A0 =C2=A0 =C2=A0 =C2=A0CG: another timer for ACK always option.
=C2=A0 =C2=A0 =C2=A0 =C2=A0CG: Ack always: start timer upon sending last fr= agments, and timer expiration when no ACK.
=C2=A0 =C2=A0 =C2=A0 =C2=A0LT: 2 cases are almost same behaviour. agree wit= h the current proposal.
=C2=A0 =C2=A0 =C2=A0 =C2=A0PT: Timer value is dependent on the direction(se= nder as device/network) and technology.=C2=A0
=C2=A0 =C2=A0 =C2=A0 =C2=A0CG: to be defined in the technology specific pro= files?
=C2=A0 =C2=A0 =C2=A0 =C2=A0CG: proper name of the timer in each case to be = added=C2=A0
=C2=A0 =C2=A0 =C2=A0 =C2=A0CG: Packet mode problem: Ambiguity on the receiv= er side when retransmission of the fragments
=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 The idea is to renumber th= e fragments in the retransmission
=C2=A0 =C2=A0 =C2=A0 =C2=A0CB: What case are we optimizing 90% or 10% loss?= ; be less optimal, looks good for one round of retransmisison.
=C2=A0 =C2=A0 =C2=A0 =C2=A0PT: need a format for the tries and retries.
=C2=A0 =C2=A0 =C2=A0 =C2=A0LT: what happen when you retries the retries
=C2=A0 =C2=A0 =C2=A0 =C2=A0PT: the problem will be when crossing the renumb= ering fragments between the =C3=A9nd and the next retries=C2=A0
=C2=A0 =C2=A0 =C2=A0 =C2=A0CB: timer controlled transmission introduces amb= iguity.
=C2=A0 =C2=A0 =C2=A0 =C2=A0PT: echoes Carsten
=C2=A0 =C2=A0 =C2=A0 =C2=A0CB: what range of asymmetry do we address here? = 1-20, 1-80?=C2=A0
=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 sending the bitmap on the = ack is too expensive=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0
=C2=A0 =C2=A0 =C2=A0 =C2=A0CB: Sender has to compute something like FEC=C2= =A0
=C2=A0 =C2=A0 =C2=A0 =C2=A0PT: Can take the discussion further in the maili= ng list.
=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 Asymmetric is more about t= he number of packets, and not the number of bits
=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 Prove that we can live wit= h the renumbering? if not introduce the asymmetric level
=C2=A0 =C2=A0 =C2=A0 =C2=A0PT: don't think bit map would be too expensi= ve.
=C2=A0 =C2=A0 =C2=A0 =C2=A0JCZ: cost may be different depending upon the di= rection.
=C2=A0 =C2=A0 =C2=A0 =C2=A0PT: address the problem of sending less bits tha= n the bit map
=C2=A0 =C2=A0 =C2=A0 =C2=A0CG: pending items ; main questions are solved or= some proposal available.
=C2=A0 =C2=A0 =C2=A0 =C2=A0PT: prepare the document for publication, needs = to start the review process.

.=C2=A0=C2=A0=C2=A0 [7:52] SCHC CoAP (Laurent)=C2=A0=C2=A0=C2=A0=C2=A0=C2= =A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0= =C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2= =A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0 [ 5min]
=C2=A0 =C2=A0 =C2=A0 =C2=A0LT: Nothing for CoaP; can be asked in the mailin= g list. see if we can apply compression schemes for CoMI, Lightweight M2M.<= br> =C2=A0 =C2=A0 =C2=A0 =C2=A0AP: working on CoMI. still last minute modificat= ion. to be resolved next week and can provide update in the next interim.
.=C2=A0=C2=A0=C2=A0 [7:57] AOB=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2= =A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0= =C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2= =A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0= =C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0 [ 3min]

The chairs=C2=A0;

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XCH-RCD-001.cisco.com ([173.37.102.11]) with mapi id 15.00.1210.000; Thu, 27 Apr 2017 07:18:27 -0500 From: "Pascal Thubert (pthubert)" To: Laurent Toutain CC: lp-wan , "lp-wan-chairs@ietf.org" Thread-Topic: [lp-wan] Minutes, LPWAN Interim meeting, April 26th, 2017 Thread-Index: AdK/IQsBQep0ofayTqCA3GbXbOC7/gAN4iAAAAJZ/VA= Date: Thu, 27 Apr 2017 12:18:14 +0000 Deferred-Delivery: Thu, 27 Apr 2017 12:18:04 +0000 Message-ID: <75d9ad2a29b246d88be8a992571b8c62@XCH-RCD-001.cisco.com> References: <7ee58e3c7c314669bb740797e4309f21@XCH-RCD-001.cisco.com> In-Reply-To: Accept-Language: fr-FR, en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: x-ms-exchange-transport-fromentityheader: Hosted x-originating-ip: [10.55.22.4] Content-Type: multipart/alternative; boundary="_000_75d9ad2a29b246d88be8a992571b8c62XCHRCD001ciscocom_" MIME-Version: 1.0 Archived-At: Subject: Re: [lp-wan] Minutes, LPWAN Interim meeting, April 26th, 2017 X-BeenThere: lp-wan@ietf.org X-Mailman-Version: 2.1.22 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