From nobody Wed May 8 22:21:10 2019 Return-Path: X-Original-To: sfc@ietf.org Delivered-To: sfc@ietfa.amsl.com Received: from ietfa.amsl.com (localhost [IPv6:::1]) by ietfa.amsl.com (Postfix) with ESMTP id 40B7112004A; Wed, 8 May 2019 22:21:01 -0700 (PDT) MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit From: internet-drafts@ietf.org To: Cc: sfc@ietf.org X-Test-IDTracker: no X-IETF-IDTracker: 6.96.0 Auto-Submitted: auto-generated Precedence: bulk Reply-To: sfc@ietf.org Message-ID: <155737926116.22620.1566369641990656269@ietfa.amsl.com> Date: Wed, 08 May 2019 22:21:01 -0700 Archived-At: Subject: [sfc] I-D Action: draft-ietf-sfc-multi-layer-oam-03.txt X-BeenThere: sfc@ietf.org X-Mailman-Version: 2.1.29 List-Id: Network Service Chaining List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 09 May 2019 05:21:02 -0000 A New Internet-Draft is available from the on-line Internet-Drafts directories. This draft is a work item of the Service Function Chaining WG of the IETF. Title : Active OAM for Service Function Chains in Networks Authors : Greg Mirsky Wei Meng Bhumip Khasnabish Cui Wang Filename : draft-ietf-sfc-multi-layer-oam-03.txt Pages : 18 Date : 2019-05-08 Abstract: A set of requirements for active Operation, Administration and Maintenance (OAM) of Service Function Chains (SFCs) in networks is presented. Based on these requirements an encapsulation of active OAM message in SFC and a mechanism to detect and localize defects described. Also, this document updates RFC 8300 in the definition of O (OAM) bit in the Network Service Header (NSH) and defines how the active OAM message identified in SFC NSH. The IETF datatracker status page for this draft is: https://datatracker.ietf.org/doc/draft-ietf-sfc-multi-layer-oam/ There are also htmlized versions available at: https://tools.ietf.org/html/draft-ietf-sfc-multi-layer-oam-03 https://datatracker.ietf.org/doc/html/draft-ietf-sfc-multi-layer-oam-03 A diff from the previous version is available at: https://www.ietf.org/rfcdiff?url2=draft-ietf-sfc-multi-layer-oam-03 Please note that it may take a couple of minutes from the time of submission until the htmlized version and diff are available at tools.ietf.org. Internet-Drafts are also available by anonymous FTP at: ftp://ftp.ietf.org/internet-drafts/ From nobody Wed May 8 22:31:19 2019 Return-Path: X-Original-To: sfc@ietfa.amsl.com Delivered-To: sfc@ietfa.amsl.com Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id 4A777120108 for ; Wed, 8 May 2019 22:31:18 -0700 (PDT) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -1.999 X-Spam-Level: X-Spam-Status: No, score=-1.999 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, FREEMAIL_FROM=0.001, HTML_MESSAGE=0.001, RCVD_IN_DNSWL_NONE=-0.0001, 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 tWr-JlneBuge for ; Wed, 8 May 2019 22:31:15 -0700 (PDT) Received: from mail-lf1-x12a.google.com (mail-lf1-x12a.google.com [IPv6:2a00:1450:4864:20::12a]) (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 26CE612004A for ; Wed, 8 May 2019 22:31:15 -0700 (PDT) Received: by mail-lf1-x12a.google.com with SMTP id v18so611260lfi.1 for ; Wed, 08 May 2019 22:31:15 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=mime-version:references:in-reply-to:from:date:message-id:subject:to; bh=4kV+j3rE5/c7Wparpm9zMN7bWpcHdpM8gAkERmKkgmg=; b=KS4QybWAs6GUdP8oFsllB5ZyxWKHSIZazCAmP2t5uOwJEGOJ9ESJOBpHy+9KxN2Nc3 1xy3P5JSPxGNEgz/f79FR5Pl/suk/BzQVsTq+T57v6YXgi9uOiYyE/PKZBTvrAkkuYev Q7u02tRGcyJ4vcC29fq21PMS/YAsEn670dGP3I8R67DjJX9u+QXQ5ZF0VOKRU/Y5Zby/ JT0G1b+rKIY8mFIFaTNm3oR5j/LvLTpLXRTMYQpchjyQowktRIREUOuPSGhC1ditlfDZ pY64r/R7lLIgN+FKVtP/rWRU6BZAWJaEdaTOT9dfZYOTL7l5qN7s/ifnhCTtoueq3wXP Dj/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:references:in-reply-to:from:date :message-id:subject:to; bh=4kV+j3rE5/c7Wparpm9zMN7bWpcHdpM8gAkERmKkgmg=; b=DaULDuZGaG4cSbvELhAskJIIvB00TwZheZSvTFNSgKBYJK7opA6q9MoiBedCxLoGlb Ka8YZjHHuQG91YCpwv50rlobOB3VoeKnEkAa6QDTRIlYWzs1IAjo2BnMzn8hzz+V1gXd JdpCvrQD8Euq07EaNjbp74FDdvs7n681aJ/E5k8PJ3QrwwPyUh3wOScKFt8ttW0HWkQZ qj2lg9CcIhgzy9uwJXqcy8U+iqPZJB4iOzttyOEUFYdtWAjSWLp2g6o6Po9RjX/9XYRS 1pmZjyOJ4vDm0aKli85H7lQqwiV0SHXKzoLSLMduGvPg+87rGWT0Edn0NqMfWV1+v5X6 nvbg== X-Gm-Message-State: APjAAAW+zhvQHxa6kDGcAfGU/oI4rHAaWGEwaJuqVC45yNvNyRFm3Emt cvT7BLjRj9Xzt04VpfGlttldoyQHTtYjLEjxEk0OB5CV X-Google-Smtp-Source: APXvYqwXZCXoKiVTyw7q8xaiKjOf94hAd2Qp9gzNjD4UYKoK9F8buSKVlgYcyZDobpFLqZlUybbf0O1W9clxwkz/bkQ= X-Received: by 2002:a19:97c8:: with SMTP id z191mr1088606lfd.167.1557379872795; Wed, 08 May 2019 22:31:12 -0700 (PDT) MIME-Version: 1.0 References: <155737926141.22620.15797109690906794999.idtracker@ietfa.amsl.com> In-Reply-To: <155737926141.22620.15797109690906794999.idtracker@ietfa.amsl.com> From: Greg Mirsky Date: Wed, 8 May 2019 22:31:01 -0700 Message-ID: To: Service Function Chaining IETF list Content-Type: multipart/alternative; boundary="00000000000019323205886dc282" Archived-At: Subject: [sfc] Fwd: New Version Notification for draft-ietf-sfc-multi-layer-oam-03.txt X-BeenThere: sfc@ietf.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Network Service Chaining List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 09 May 2019 05:31:18 -0000 --00000000000019323205886dc282 Content-Type: text/plain; charset="UTF-8" Dear All, the update to the draft addresses the comment received from Joel at the meeting in Prague: - Joel: if we get an echo request we can't parse, how do we know that it is an echo request, and do we have the information to return it to the correct source? - Greg: we will clarify this in the draft. It has to practical so the sender can understand the situation. We introduced two classes of TLVs: mandatory and optional. Will add clearer text. A new TLV, Errored TLVs, introduced to be optionally used to pass in an echo reply mandatory TLVs that were not understood because either the implementation on the receiver does not support them or couldn't parse them correctly. Also, please review the update to the interpretation of O-bit and the value of the Next Protocol field to address Adrian's comments at the meeting in Bangkok: The rules of interpreting the values of O bit and the Next Protocol field are as follows: o O bit set, and the Next Protocol value is not one of identifying active or hybrid OAM protocol (per [RFC7799] definitions), e.g., defined in this specification Active SFC OAM - a Fixed-Length Context Header or Variable-Length Context Header(s) contain OAM command or data. and the type of payload determined by the Next Protocol field; o O bit set, and the Next Protocol value is one of identifying active or hybrid OAM protocol - the payload that immediately follows SFC NSH contains OAM command or data; o O bit is clear - no OAM in a Fixed-Length Context Header or Variable-Length Context Header(s) and the payload determined by the value of the Next Protocol field; o O bit is clear and the Next Protocol value is one of identifying active or hybrid OAM protocol MUST be identified and reported as the erroneous combination. An implementation MAY have control to enable processing of the OAM payload. From the above-listed rules follows the recommendation to avoid combination of OAM in a Fixed-Length Context Header or Variable- Length Context Header(s) and in the payload immediately following the SFC NSH because there is no unambiguous way to identify such combination using the O bit and the Next Protocol field. Regards, Greg ---------- Forwarded message --------- From: Date: Wed, May 8, 2019 at 10:21 PM Subject: New Version Notification for draft-ietf-sfc-multi-layer-oam-03.txt To: , Gregory Mirsky , Bhumip Khasnabish , Wei Meng , Cui(Linda) Wang A new version of I-D, draft-ietf-sfc-multi-layer-oam-03.txt has been successfully submitted by Greg Mirsky and posted to the IETF repository. Name: draft-ietf-sfc-multi-layer-oam Revision: 03 Title: Active OAM for Service Function Chains in Networks Document date: 2019-05-08 Group: sfc Pages: 18 URL: https://www.ietf.org/internet-drafts/draft-ietf-sfc-multi-layer-oam-03.txt Status: https://datatracker.ietf.org/doc/draft-ietf-sfc-multi-layer-oam/ Htmlized: https://tools.ietf.org/html/draft-ietf-sfc-multi-layer-oam-03 Htmlized: https://datatracker.ietf.org/doc/html/draft-ietf-sfc-multi-layer-oam Diff: https://www.ietf.org/rfcdiff?url2=draft-ietf-sfc-multi-layer-oam-03 Abstract: A set of requirements for active Operation, Administration and Maintenance (OAM) of Service Function Chains (SFCs) in networks is presented. Based on these requirements an encapsulation of active OAM message in SFC and a mechanism to detect and localize defects described. Also, this document updates RFC 8300 in the definition of O (OAM) bit in the Network Service Header (NSH) and defines how the active OAM message identified in SFC NSH. Please note that it may take a couple of minutes from the time of submission until the htmlized version and diff are available at tools.ietf.org. The IETF Secretariat --00000000000019323205886dc282 Content-Type: text/html; charset="UTF-8" Content-Transfer-Encoding: quoted-printable
Dear All,
the update= to the draft addresses the comment received from Joel at the meeting in Pr= ague:
- Joel: if we get an echo request we can't parse, = how do we know that it is an echo request, and do we have the information t= o return it to the correct source?
- Greg: we will clarify this i= n the draft. It has to practical so the sender can understand the situation= . We introduced two classes of TLVs: mandatory and optional. Will add clear= er text.

A new TLV, Errored TLVs, introduced to be= optionally used to pass in an echo reply mandatory TLVs that were not unde= rstood because either the implementation on the receiver does not support t= hem or couldn't parse them correctly.

Also, pl= ease review the update to the interpretation of O-bit and the value of the = Next Protocol field to address Adrian's comments at the meeting in Bang= kok:
The rules of
=C2=A0 =C2=A0interpreting the va= lues of O bit and the Next Protocol field are as
=C2=A0 =C2=A0fol= lows:

=C2=A0 =C2=A0o=C2=A0 O bit set, and the Next= Protocol value is not one of identifying
=C2=A0 =C2=A0 =C2=A0 ac= tive or hybrid OAM protocol (per [RFC7799] definitions), e.g.,
= =C2=A0 =C2=A0 =C2=A0 defined in this specification Active SFC OAM - a Fixed= -Length
=C2=A0 =C2=A0 =C2=A0 Context Header or Variable-Length Co= ntext Header(s) contain OAM
=C2=A0 =C2=A0 =C2=A0 command or data.= =C2=A0 and the type of payload determined by the Next
=C2=A0 =C2= =A0 =C2=A0 Protocol field;

=C2=A0 =C2=A0o=C2=A0 O = bit set, and the Next Protocol value is one of identifying
=C2=A0= =C2=A0 =C2=A0 active or hybrid OAM protocol - the payload that immediately=
=C2=A0 =C2=A0 =C2=A0 follows SFC NSH contains OAM command or dat= a;

=C2=A0 =C2=A0o=C2=A0 O bit is clear - no OAM in= a Fixed-Length Context Header or
=C2=A0 =C2=A0 =C2=A0 Variable-L= ength Context Header(s) and the payload determined by
=C2=A0 =C2= =A0 =C2=A0 the value of the Next Protocol field;

= =C2=A0 =C2=A0o=C2=A0 O bit is clear and the Next Protocol value is one of i= dentifying
=C2=A0 =C2=A0 =C2=A0 active or hybrid OAM protocol MUS= T be identified and reported as
=C2=A0 =C2=A0 =C2=A0 the erroneou= s combination.=C2=A0 An implementation MAY have control to
=C2=A0= =C2=A0 =C2=A0 enable processing of the OAM payload.

=C2=A0 =C2=A0From the above-listed rules follows the recommendation to a= void
=C2=A0 =C2=A0combination of OAM in a Fixed-Length Context He= ader or Variable-
=C2=A0 =C2=A0Length Context Header(s) and in th= e payload immediately following the
=C2=A0 =C2=A0SFC NSH because = there is no unambiguous way to identify such
=C2=A0 =C2=A0combina= tion using the O bit and the Next Protocol field.

Regards,
Greg

---------- Forwarded message ---------
Fro= m: <intern= et-drafts@ietf.org>
Date: Wed, May 8, 2019 at 10:21 PM
= Subject: New Version Notification for draft-ietf-sfc-multi-layer-oam-03.txt=
To: <sfc-chairs@ietf.org= >, Gregory Mirsky <gregimirs= ky@gmail.com>, Bhumip Khasnabish <vumip1@gmail.com>, Wei Meng <meng.wei2@zte.com.cn>, Cui(Linda) Wang <lindawangjoy@gmail.com>


<= br> A new version of I-D, draft-ietf-sfc-multi-layer-oam-03.txt
has been successfully submitted by Greg Mirsky and posted to the
IETF repository.

Name:=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0draft-ietf-sfc-multi-layer-oa= m
Revision:=C2=A0 =C2=A0 =C2=A0 =C2=A003
Title:=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 Active OAM for Service Function Ch= ains in Networks
Document date:=C2=A0 2019-05-08
Group:=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 sfc
Pages:=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 18
URL:=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 https://www.ietf.org/internet-drafts/draft-ietf-sfc-mul= ti-layer-oam-03.txt
Status:=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0https://datatracker.ietf.org/doc/draft-ietf-sfc-multi-layer-oam/ Htmlized:=C2=A0 =C2=A0 =C2=A0 =C2=A0htt= ps://tools.ietf.org/html/draft-ietf-sfc-multi-layer-oam-03
Htmlized:=C2=A0 =C2=A0 =C2=A0 =C2=A0https://datatracker.ietf.org/doc/html/draft-ietf-sfc-multi-layer-oam
Diff:=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0https://www.ietf.org/rfcdiff?url2=3Ddraft-ietf-sfc-multi-lay= er-oam-03

Abstract:
=C2=A0 =C2=A0A set of requirements for active Operation, Administration and=
=C2=A0 =C2=A0Maintenance (OAM) of Service Function Chains (SFCs) in network= s is
=C2=A0 =C2=A0presented.=C2=A0 Based on these requirements an encapsulation = of active
=C2=A0 =C2=A0OAM message in SFC and a mechanism to detect and localize defe= cts
=C2=A0 =C2=A0described.=C2=A0 Also, this document updates RFC 8300 in the d= efinition of
=C2=A0 =C2=A0O (OAM) bit in the Network Service Header (NSH) and defines ho= w the
=C2=A0 =C2=A0active OAM message identified in SFC NSH.




Please note that it may take a couple of minutes from the time of submissio= n
until the htmlized version and diff are available at tools.ietf.org.

The IETF Secretariat

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([64.101.220.160]) by XCH-RTP-020.cisco.com ([64.101.220.160]) with mapi id 15.00.1473.003; Fri, 10 May 2019 22:53:30 -0400 From: "Carlos Pignataro (cpignata)" To: Greg Mirsky CC: Service Function Chaining IETF list Thread-Topic: [sfc] New Version Notification for draft-ietf-sfc-multi-layer-oam-03.txt Thread-Index: AQHVB6S2wdcSzc4oyU66XvnxSnoDAg== Date: Sat, 11 May 2019 02:53:30 +0000 Message-ID: References: <155737926141.22620.15797109690906794999.idtracker@ietfa.amsl.com> In-Reply-To: Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: x-mailer: Apple Mail (2.3445.104.8) x-ms-exchange-messagesentrepresentingtype: 1 x-ms-exchange-transport-fromentityheader: Hosted x-originating-ip: [10.118.116.132] Content-Type: multipart/alternative; boundary="_000_E0EA05430A5342F2907081569EFA0C86ciscocom_" MIME-Version: 1.0 X-Outbound-SMTP-Client: 64.101.220.157, xch-rtp-017.cisco.com X-Outbound-Node: rcdn-core-8.cisco.com Archived-At: Subject: Re: [sfc] New Version Notification for draft-ietf-sfc-multi-layer-oam-03.txt X-BeenThere: sfc@ietf.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Network Service Chaining List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sat, 11 May 2019 02:53:38 -0000 --_000_E0EA05430A5342F2907081569EFA0C86ciscocom_ Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 SGksIEdyZWcsIFNGQywNCg0KSW4gb3JkZXIgdG8gdW5kZXJzdGFuZCB0aGUgcG9zaXRpb25pbmcg b2YgZHJhZnQtaWV0Zi1zZmMtbXVsdGktbGF5ZXItb2FtLCBwbGVhc2UgZmluZCAzIGhpZ2gtbGV2 ZWwgeWV0IHZlcnkgaW1wb3J0YW50IHF1ZXN0aW9ucyBhbmQgYXNzb2NpYXRlZCBjb21tZW50cyBm b3IgY29uc2lkZXJhdGlvbi4NCg0KVG8gYXZvaWQgcG90ZW50aWFsIG1pc2ludGVycHJldGF0aW9u IGFuZCB0byBiZSBleHBsaWNpdCBvbiB0aGlzIG5vdGUncyBpbnRlbnRpb246IHRoaXMgZW1haWwg ZG9lcyBub3QgaW1wbHkgaW50ZXJlc3QgaW4gdGhpcyBkcmFmdCwgZG9lcyBub3QgbWVhbiBzdXBw b3J0LCBJIGhhdmUgbm90IHJlYWQgdGhlIGRvY3VtZW50IGZ1bGx5Lg0KDQpCdXQgYSBxdWljayBu 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for ; Fri, 10 May 2019 20:14:38 -0700 (PDT) Received: by mail-lj1-x232.google.com with SMTP id w1so4075590ljw.0 for ; Fri, 10 May 2019 20:14:38 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=mime-version:references:in-reply-to:from:date:message-id:subject:to :cc; bh=WtQqlH+rZXBF/GMH0UcxY4hLKQ7+U2HUzD5H45BNXe0=; b=Ct/6ovJA8PnQjpfyrFT6xnDbT3wqm4+3r4KBxX32MmUwcfuxNq5t9C5lGY1tef94M3 hfqwAvBowbfa1K4VkLoQKm3O11U8bv8XscHpOOJdqWc9JxuEpt3COLQZtAICG73DiU1E pSa4hhidhjG0wHPQv+924RKOLLKgnBUShcyyC+v4wcdBFgdmpBCLdhSg4vzlqKQmG3lK ciNoHUByQgNscW/uWp45p1qlbgzUOYkNVvqdpN5qHDRUCgDSrmOsXZNSowDVE2gdMQBj eh6ebkNoem5wrQF0Kqz+rLl74iVywil2UQMbNsBgyYzhxkYhXX3JH2L4g3DCJxM+XGL+ s+eg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:references:in-reply-to:from:date :message-id:subject:to:cc; bh=WtQqlH+rZXBF/GMH0UcxY4hLKQ7+U2HUzD5H45BNXe0=; b=sRxsgezrDo+yQj3pTp4NHRiWHPNXg3ycHj5trq0T2/flkiqybjC6nRLxQSvI5kUexw jtWjfgNnLdl/0y0eYzzZVl0kupY+ebUT5nzXqkSnTeq/GIAfjgmbWH9HxH3ivSauHOKA LhZUurcwoIKA+X+LH8MWpb6FJAHuqs4JxTtjOpJMdoMOw1K8/475Lgny+62zqI9Eixvx c8o63k0UVLIbl9Up+fP9R+aq5ByseGqhsL48rgO3aw8PWWCH8ihtAle3A+DTS/mhD/PG WTXaBucdk6ihKa65LppHCsAYPCXfbHnb0QjWUGb/11V86skvS7qZw4WPZTH98E+JDyoh R52A== X-Gm-Message-State: APjAAAUA3QiljQBypyqa0Y2HX8JLMr/vskKbmpD6iQfSyTStW1K8IgIL kt2smDEpGPMGGxMAdZjMhVIi+egwXLHadg3X8Dg= X-Google-Smtp-Source: APXvYqzRqeW3O8CmkRdjBstYId0PfJyH0DNG9EcE25LKkGSxdl8MZgq/mN+QPCdhjSkuT7puUlbP3Hg1vVhPSd/QV1M= X-Received: by 2002:a2e:1b8a:: with SMTP id c10mr7766617ljf.139.1557544476494; Fri, 10 May 2019 20:14:36 -0700 (PDT) MIME-Version: 1.0 References: <155737926141.22620.15797109690906794999.idtracker@ietfa.amsl.com> In-Reply-To: From: Greg Mirsky Date: Fri, 10 May 2019 20:14:25 -0700 Message-ID: To: "Carlos Pignataro (cpignata)" Cc: Service Function Chaining IETF list Content-Type: multipart/alternative; boundary="0000000000003e519a0588941524" Archived-At: Subject: Re: [sfc] New Version Notification for draft-ietf-sfc-multi-layer-oam-03.txt X-BeenThere: sfc@ietf.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Network Service Chaining List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sat, 11 May 2019 03:14:42 -0000 --0000000000003e519a0588941524 Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable Hi Carlos, I'm sure you've read the section "Implementation Status" in RFC 7942 that opens with the following sentence: Each Internet-Draft may contain a section entitled "Implementation Status". Thus I'm puzzled why are you demanding that this optional section be added to the draft now? Yes, the work on the implementation is ongoing and when there will be updates, we'll certainly share them with the WG. Regards, Greg On Fri, May 10, 2019 at 7:53 PM Carlos Pignataro (cpignata) < cpignata@cisco.com> wrote: > Hi, Greg, SFC, > > In order to understand the positioning of draft-ietf-sfc-multi-layer-oam, > please find 3 high-level yet very important questions and associated > comments for consideration. > > To avoid potential misinterpretation and to be explicit on this note's > intention: this email does not imply interest in this draft, does not mea= n > support, I have not read the document fully. > > But a quick note for completeness: > > 1. =E2=80=9CImplementation Status=E2=80=9D Section. > > The authors seem to selectively respond to comments. > > I asked for an =E2=80=9CImplementation Status=E2=80=9D Section [RFC7942] = at least two or > three times: > * March 29, 2018, on draft-wang-sfc-multi-layer-oam > https://mailarchive.ietf.org/arch/msg/nvo3/eNRV-7GLWO_lLeeXwI97HhTrtBo > * October 27, 2018, on adoption > https://mailarchive.ietf.org/arch/msg/sfc/wuK4MiyeOMNbXrRIYjiW7zCtZ70 > > Instead, this drafts seems to be inventing a full blown protocol without > implementation practice. > > SFC Chairs, could we please follow-up on repeated comments made on the > list and track a disposition? These are over a year old, and part of an > adoption call. > > Request: Can we please add an =E2=80=9CImplementation Status=E2=80=9D sec= tion? > > > 2. New protocol invention outside of / rogue to an SFC OAM Framework. > > draft-ietf-sfc-multi-layer-oam does not reference any other SFC I-Ds. It > does not build upon existing work in progress, and instead invents a new > protocol with RFC8300 as the only Normative reference from SFC. > > The draft-ietf-sfc-oam-framework at > https://tools.ietf.org/html/draft-ietf-sfc-oam-framework-06 takes a > holistic approach of including an analysis (selecting only some section > titles): > 4. SFC OAM Functions . . . . . . . . . . . . . . . . . . . . . . 8 > 5. Gap Analysis . . . . . . . . . . . . . . . . . . . . . . . . 11 > 5.1. Existing OAM Functions . . . . . . . . . . . . . . . . . 11 > 5.2. Missing OAM Functions . . . . . . . . . . . . . . . . . . 12 > 6.4. OAM Toolset applicability . . . . . . . . . . . . . . . . 13 > 6.4.1. ICMP Applicability . . . . . . . . . . . . . . . . . 13 > > This analysis ought to guide protocol definition. > > Question: Can this draft consider existing protocols and gap performed > before re-inventing? Specifically Normatively cite the SFC OAM Framework > and see where reuse is best? > > > 3. Existing implementation of OAM functions. > > Hows does this draft work with existing OAM functions with existing > implementation, such as > https://tools.ietf.org/html/draft-penno-sfc-trace-03 ? The fact that the > draft is expired does not mean the implementation is uncoded. > > > Many thanks, > > =E2=80=94 Carlos Pignataro > > On May 9, 2019, at 1:31 AM, Greg Mirsky wrote: > > Dear All, > the update to the draft addresses the comment received from Joel at the > meeting in Prague: > - Joel: if we get an echo request we can't parse, how do we know that it > is an echo request, and do we have the information to return it to the > correct source? > - Greg: we will clarify this in the draft. It has to practical so the > sender can understand the situation.. We introduced two classes of TLVs: > mandatory and optional. Will add clearer text. > > A new TLV, Errored TLVs, introduced to be optionally used to pass in an > echo reply mandatory TLVs that were not understood because either the > implementation on the receiver does not support them or couldn't parse th= em > correctly. > > Also, please review the update to the interpretation of O-bit and the > value of the Next Protocol field to address Adrian's comments at the > meeting in Bangkok: > The rules of > interpreting the values of O bit and the Next Protocol field are as > follows: > > o O bit set, and the Next Protocol value is not one of identifying > active or hybrid OAM protocol (per [RFC7799] definitions), e.g., > defined in this specification Active SFC OAM - a Fixed-Length > Context Header or Variable-Length Context Header(s) contain OAM > command or data. and the type of payload determined by the Next > Protocol field; > > o O bit set, and the Next Protocol value is one of identifying > active or hybrid OAM protocol - the payload that immediately > follows SFC NSH contains OAM command or data; > > o O bit is clear - no OAM in a Fixed-Length Context Header or > Variable-Length Context Header(s) and the payload determined by > the value of the Next Protocol field; > > o O bit is clear and the Next Protocol value is one of identifying > active or hybrid OAM protocol MUST be identified and reported as > the erroneous combination. An implementation MAY have control to > enable processing of the OAM payload. > > From the above-listed rules follows the recommendation to avoid > combination of OAM in a Fixed-Length Context Header or Variable- > Length Context Header(s) and in the payload immediately following the > SFC NSH because there is no unambiguous way to identify such > combination using the O bit and the Next Protocol field. > > Regards, > Greg > > ---------- Forwarded message --------- > From: > Date: Wed, May 8, 2019 at 10:21 PM > Subject: New Version Notification for draft-ietf-sfc-multi-layer-oam-03.t= xt > To: , Gregory Mirsky , Bhumip > Khasnabish , Wei Meng >, Cui(Linda) Wang > > > > A new version of I-D, draft-ietf-sfc-multi-layer-oam-03.txt > has been successfully submitted by Greg Mirsky and posted to the > IETF repository. > > Name: draft-ietf-sfc-multi-layer-oam > Revision: 03 > Title: Active OAM for Service Function Chains in Networks > Document date: 2019-05-08 > Group: sfc > Pages: 18 > URL: > https://www.ietf.org/internet-drafts/draft-ietf-sfc-multi-layer-oam-03.tx= t > Status: > https://datatracker.ietf.org/doc/draft-ietf-sfc-multi-layer-oam/ > Htmlized: > https://tools.ietf.org/html/draft-ietf-sfc-multi-layer-oam-03 > Htmlized: > https://datatracker.ietf.org/doc/html/draft-ietf-sfc-multi-layer-oam > Diff: > https://www.ietf.org/rfcdiff?url2=3Ddraft-ietf-sfc-multi-layer-oam-03 > > Abstract: > A set of requirements for active Operation, Administration and > Maintenance (OAM) of Service Function Chains (SFCs) in networks is > presented. Based on these requirements an encapsulation of active > OAM message in SFC and a mechanism to detect and localize defects > described. Also, this document updates RFC 8300 in the definition of > O (OAM) bit in the Network Service Header (NSH) and defines how the > active OAM message identified in SFC NSH. > > > > > Please note that it may take a couple of minutes from the time of > submission > until the htmlized version and diff are available at tools.ietf.org. > > The IETF Secretariat > > _______________________________________________ > sfc mailing list > sfc@ietf.org > https://www.ietf.org/mailman/listinfo/sfc > > > --0000000000003e519a0588941524 Content-Type: text/html; charset="UTF-8" Content-Transfer-Encoding: quoted-printable
Hi Carlos,
I'm sure you've re= ad the section "Implementation Status" in RFC 7942 that opens wit= h the following sentence:
=C2=A0 =C2=A0Each Internet-Draft m= ay contain a section entitled "Implementation Status".=C2=A0
Thus I'm puzzled why are you demanding that this optional s= ection be added to the draft now? Yes, the work on the implementation is on= going and when there will be updates, we'll certainly share them with t= he WG.

Regards,
Greg
On Fri, = May 10, 2019 at 7:53 PM Carlos Pignataro (cpignata) <cpignata@cisco.com> wrote:
Hi, Greg, SFC,

In order to understand the positioning of draft-ietf-sfc-multi-layer-o= am, please find 3 high-level yet very important questions and associated co= mments for consideration.

To avoid potential misinterpretation and to be explicit on this note&#= 39;s intention: this email does not imply interest in this draft, does not = mean support, I have not read the document fully.=C2=A0

But a quick note for completeness:

1. =E2=80=9CImplementation Status=E2=80=9D Section.

The authors seem to selectively respond to comments.

I asked for an =E2=80=9CImplementation Status=E2=80=9D Section [RFC794= 2] at least two or three times:
* March 29, 2018, on draft-wang-sfc-multi-layer-oam=C2=A0https://mailarchive.ietf.org/arch/msg/nvo3/eNRV-7GLWO_lLeeXwI9= 7HhTrtBo

Instead, this drafts seems to be inventing a full blown protocol witho= ut implementation practice.

SFC Chairs, could we please follow-up on repeated comments made on the= list and track a disposition? These are over a year old, and part of an ad= option call.

Request: Can we please add an =E2=80=9CImplementation Status=E2=80=9D = section?


2. New protocol invention outside of / rogue to an SFC OAM Framework.<= /div>

draft-ietf-sfc-multi-layer-oam does not reference any other SFC I-Ds. = It does not build upon existing work in progress, and instead invents a new= protocol with=C2=A0RFC8300 as the only Normative reference from SFC.

The=C2=A0draft-ietf-sfc-oam-framework at=C2=A0https://t= ools.ietf.org/html/draft-ietf-sfc-oam-framework-06=C2=A0takes a holisti= c approach of including an analysis (selecting only some section titles):
4.=C2=A0 SFC OAM Functions . . . . . . . . . . . . . . . . . . . . . .= =C2=A0=C2=A08 =C2=A0=C2=A0
5.=C2=A0 Gap Analysis =C2=A0. . . . . . . . . . . . . . . . . . . . . . . .= =C2=A011 =C2=A0 =C2=A0=C2=A0
5.1.=C2=A0 Existing OAM Functions =C2=A0. . . . . . . . . . . . . . . . . = =C2=A011
5.2.=C2=A0 Missing OAM Functions . . . . . . . . . . . . . . . . . . =C2=A0= 12
6.4.=C2=A0 OAM Toolset applicability . . . . . . . . . . . . . . . . =C2=A0= 13
=C2=A0 =C2=A0 =C2=A0 =C2=A06.4.1.=C2=A0 ICMP Applicability =C2=A0. . . . . = . . . . . . . . . . . . =C2=A013

This analysis ought to guide protocol definition.

Question: Can this draft consider existing protocols and gap performed= before re-inventing? Specifically Normatively cite the SFC OAM Framework a= nd see where reuse is best?


3. Existing implementation of OAM functions.

Hows does this draft work with existing OAM functions with existing im= plementation, such as=C2=A0https://tools.ietf.org/html/draft-penno-= sfc-trace-03=C2=A0? The fact that the draft is expired does not mean the implementation is uncoded.


Many thanks,

=E2=80=94 Carlos Pignataro

On May 9, 2019, at 1:31 AM, Greg Mirsky <gregimirsky@gmail.com> wrote:

Dear All,
the update to the draft addresses the comment received from Joel at th= e meeting in Prague:
- Joel: if we get an echo request we can't parse, how do we know t= hat it is an echo request, and do we have the information to return it to t= he correct source?
- Greg: we will clarify this in the draft. It has to practical so the = sender can understand the situation.. We introduced two classes of TLVs: ma= ndatory and optional. Will add clearer text.

A new TLV, Errored TLVs, introduced to be optionally used to pass in a= n echo reply mandatory TLVs that were not understood because either the imp= lementation on the receiver does not support them or couldn't parse the= m correctly.

Also, please review the update to the interpretation of O-bit and the = value of the Next Protocol field to address Adrian's comments at the me= eting in Bangkok:
The rules of
=C2=A0 =C2=A0interpreting the values of O bit and the Next Protocol fi= eld are as
=C2=A0 =C2=A0follows:

=C2=A0 =C2=A0o=C2=A0 O bit set, and the Next Protocol value is not one= of identifying
=C2=A0 =C2=A0 =C2=A0 active or hybrid OAM protocol (per [RFC7799] defi= nitions), e.g.,
=C2=A0 =C2=A0 =C2=A0 defined in this specification Active SFC OAM - a = Fixed-Length
=C2=A0 =C2=A0 =C2=A0 Context Header or Variable-Length Context Header(= s) contain OAM
=C2=A0 =C2=A0 =C2=A0 command or data.=C2=A0 and the type of payload de= termined by the Next
=C2=A0 =C2=A0 =C2=A0 Protocol field;

=C2=A0 =C2=A0o=C2=A0 O bit set, and the Next Protocol value is one of = identifying
=C2=A0 =C2=A0 =C2=A0 active or hybrid OAM protocol - the payload that = immediately
=C2=A0 =C2=A0 =C2=A0 follows SFC NSH contains OAM command or data;

=C2=A0 =C2=A0o=C2=A0 O bit is clear - no OAM in a Fixed-Length Context= Header or
=C2=A0 =C2=A0 =C2=A0 Variable-Length Context Header(s) and the payload= determined by
=C2=A0 =C2=A0 =C2=A0 the value of the Next Protocol field;

=C2=A0 =C2=A0o=C2=A0 O bit is clear and the Next Protocol value is one= of identifying
=C2=A0 =C2=A0 =C2=A0 active or hybrid OAM protocol MUST be identified = and reported as
=C2=A0 =C2=A0 =C2=A0 the erroneous combination.=C2=A0 An implementatio= n MAY have control to
=C2=A0 =C2=A0 =C2=A0 enable processing of the OAM payload.

=C2=A0 =C2=A0From the above-listed rules follows the recommendation to= avoid
=C2=A0 =C2=A0combination of OAM in a Fixed-Length Context Header or Va= riable-
=C2=A0 =C2=A0Length Context Header(s) and in the payload immediately f= ollowing the
=C2=A0 =C2=A0SFC NSH because there is no unambiguous way to identify s= uch
=C2=A0 =C2=A0combination using the O bit and the Next Protocol field.<= /div>

Regards,
Greg

---------- Forwarded message --------= -
From: <internet-drafts@ietf.org>
Date: Wed, May 8, 2019 at 10:21 PM
Subject: New Version Notification for draft-ietf-sfc-multi-layer-oam-03.txt=
To: <sfc-chairs= @ietf.org>, Gregory Mirsky <gregimirsky@gmail.com>, Bhumip Khasnabish <= vumip1@gmail.com&= gt;, Wei Meng <meng.w= ei2@zte.com.cn>, Cui(Linda) Wang <lindawangjoy@gmail.com>



A new version of I-D, draft-ietf-sfc-multi-layer-oam-03.txt
has been successfully submitted by Greg Mirsky and posted to the
IETF repository.

Name:=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0draft-ietf-sfc-multi-layer-oa= m
Revision:=C2=A0 =C2=A0 =C2=A0 =C2=A003
Title:=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 Active OAM for Service Function Ch= ains in Networks
Document date:=C2=A0 2019-05-08
Group:=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 sfc
Pages:=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 18
URL:=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 https://www.ietf.org/internet-drafts/draft-ietf-sfc-multi-layer-oam-03.txt<= /a>
Status:=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0https://datatracker.ietf.org/doc/draft-ietf-sfc-multi-layer-oam/ Htmlized:=C2=A0 =C2=A0 =C2=A0 =C2=A0htt= ps://tools.ietf.org/html/draft-ietf-sfc-multi-layer-oam-03
Htmlized:=C2=A0 =C2=A0 =C2=A0 =C2=A0https://datatracker.ietf.org/doc/html/draft-ietf-sfc-multi-layer-oam
Diff:=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0https://www.ietf.org/rfcdiff?url2=3Ddraft-ietf-sfc-multi-lay= er-oam-03

Abstract:
=C2=A0 =C2=A0A set of requirements for active Operation, Administration and=
=C2=A0 =C2=A0Maintenance (OAM) of Service Function Chains (SFCs) in network= s is
=C2=A0 =C2=A0presented.=C2=A0 Based on these requirements an encapsulation = of active
=C2=A0 =C2=A0OAM message in SFC and a mechanism to detect and localize defe= cts
=C2=A0 =C2=A0described.=C2=A0 Also, this document updates RFC 8300 in the d= efinition of
=C2=A0 =C2=A0O (OAM) bit in the Network Service Header (NSH) and defines ho= w the
=C2=A0 =C2=A0active OAM message identified in SFC NSH.




Please note that it may take a couple of minutes from the time of submissio= n
until the htmlized version and diff are available at tools.ietf.org.

The IETF Secretariat

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sfc mailing list
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htt= ps://www.ietf.org/mailman/listinfo/sfc

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451CjD2wSpz1MC02; Fri, 10 May 2019 20:48:16 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=joelhalpern.com; s=2.tigertech; t=1557546496; bh=5PwPHgIfnMLGAfFMtgS+c3WuDRXb6v7qRJyJ/cnaU/o=; h=Subject:To:Cc:References:From:Date:In-Reply-To:From; b=BwmMNwSyZ37fliQBD2M2zX8/Ke20bFj32f3FaDTMMbYLf3d+waFex3kMwVFl3u4+c i4/lQlYMfNqDT1YSEJ9qgxRkQ26V10g0eZ5D4JTVQkcrFu7BECXeQhlfcJ6iqUAzHB IgnA4pq8K+rfSyaXg7bMHH1jpEZEta/QPp2YTolU= X-Virus-Scanned: Debian amavisd-new at maila2.tigertech.net Received: from Joels-MacBook-Pro.local (209-255-163-147.ip.mcleodusa.net [209.255.163.147]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by maila2.tigertech.net (Postfix) with ESMTPSA id 451CjC2ylVz1MB8V; Fri, 10 May 2019 20:48:15 -0700 (PDT) To: "Carlos Pignataro (cpignata)" , Greg Mirsky Cc: Service Function Chaining IETF list References: <155737926141.22620.15797109690906794999.idtracker@ietfa.amsl.com> <11BA26AF-FB36-497C-9F9E-76E9658BFF47@cisco.com> From: "Joel M. Halpern" Message-ID: <5fa6548c-7bfc-210a-7d5f-24d8d014934e@joelhalpern.com> Date: Fri, 10 May 2019 23:48:14 -0400 User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.14; rv:60.0) Gecko/20100101 Thunderbird/60.6.1 MIME-Version: 1.0 In-Reply-To: <11BA26AF-FB36-497C-9F9E-76E9658BFF47@cisco.com> Content-Type: text/plain; charset=utf-8; format=flowed Content-Language: en-US Content-Transfer-Encoding: 8bit Archived-At: Subject: Re: [sfc] New Version Notification for draft-ietf-sfc-multi-layer-oam-03.txt X-BeenThere: sfc@ietf.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Network Service Chaining List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sat, 11 May 2019 03:48:19 -0000 Not comment on your other questions, and hoping that Greg will engage you in discussion on them, I want to comment on the "implementation section" comment. There are two aspects to this question. The first aspect is that you have (and the WG as a whole can) ask "are there implementations?" I think we all expect authors to answer that question when asked. The answer will likely end up in the shepherd writeup for the information of the IESG. Separately, given that it appears that there is not an available implementation at this time, it is not the normal practice to expect that an implementation section be put in a draft highlighting that gap. That is not the expected practice as I understand it for the IETF as a whole, nor is it a practice that the SFC working group has adopted. There is a large difference between making sure that the group is aware of the status and explicitly stating the gap in the I-D. It is certainly worth while to note, as you do, that there are implementations of some of the other OAM proposals. I believe (although I do not have the evidence to hand) that those implementations have proven useful in practice, which is important information for the WG. If you have more details on that, I think taht would be good information (I am not asking for an OAM implementations I-D. Just some email comments.) Yours, Joel On 5/10/19 11:34 PM, Carlos Pignataro (cpignata) wrote: > Dear SFC Chairs, > > I believe Greg’s response is mis-representing my position, and > mis-quoting what I wrote, as follows: > > Greg wrote: >> Thus I'm puzzled why are you demanding that this optional section be >> added to the draft now? > > 1. I am not demanding. Instead I wrote: >> >> Request: Can we please add an “Implementation Status” section? >> > > Greg wrote: >> Thus I'm puzzled why are you demanding that this optional section be >> added to the draft now? > > However, I suggested this over a year ago, and then 6 months ago, as per > the list posting included below. Not “now”. >> >> * March 29, 2018, on draft-wang-sfc-multi-layer-oam >> https://mailarchive.ietf.org/arch/msg/nvo3/eNRV-7GLWO_lLeeXwI97HhTrtBo >> * October 27, 2018, on adoption >> https://mailarchive.ietf.org/arch/msg/sfc/wuK4MiyeOMNbXrRIYjiW7zCtZ70 >> > > > My main request is that on-list comments and suggestions are responded > to and discussed on technical merits. The previous two/three times, my > comment was ignored and not responded to. > > I also do not understand why questions are selectively ignored. I asked > three questions on this email, but received a response to only one. > > > Dear Greg, > > Sorry to have puzzled you. That was not the intention. The intention was > to engage in a technical discussion about an Internet Best Current Practice. > > Apologies if I sounded (or was) repetitive, just seeking an answer. > > I understand the “Implementation Status” section is optional, but since > Internet documents are (among other things) for interoperability, I > kindly request you consider adding that optional section. Besides the > one-liner you quoted, RFC 7942 goes into great lengths at explaining the > importance of doing so. > > You also mention: >> Yes, the work on the implementation is ongoing > > Does this mean “the implementation” as in only one? > > Best, > > — Carlos Pignataro > > >> On May 10, 2019, at 11:14 PM, Greg Mirsky > > wrote: >> >> Hi Carlos, >> I'm sure you've read the section "Implementation Status" in RFC 7942 >> that opens with the following sentence: >>    Each Internet-Draft may contain a section entitled "Implementation >> Status". >> Thus I'm puzzled why are you demanding that this optional section be >> added to the draft now? Yes, the work on the implementation is ongoing >> and when there will be updates, we'll certainly share them with the WG. >> >> Regards, >> Greg >> >> On Fri, May 10, 2019 at 7:53 PM Carlos Pignataro (cpignata) >> > wrote: >> >> Hi, Greg, SFC, >> >> In order to understand the positioning of >> draft-ietf-sfc-multi-layer-oam, please find 3 high-level yet very >> important questions and associated comments for consideration. >> >> To avoid potential misinterpretation and to be explicit on this >> note's intention: this email does not imply interest in this >> draft, does not mean support, I have not read the document fully. >> >> But a quick note for completeness: >> >> 1. “Implementation Status” Section. >> >> The authors seem to selectively respond to comments. >> >> I asked for an “Implementation Status” Section [RFC7942] at least >> two or three times: >> * March 29, 2018, on draft-wang-sfc-multi-layer-oam >> https://mailarchive.ietf.org/arch/msg/nvo3/eNRV-7GLWO_lLeeXwI97HhTrtBo >> * October 27, 2018, on adoption >> https://mailarchive.ietf.org/arch/msg/sfc/wuK4MiyeOMNbXrRIYjiW7zCtZ70 >> >> Instead, this drafts seems to be inventing a full blown protocol >> without implementation practice. >> >> SFC Chairs, could we please follow-up on repeated comments made on >> the list and track a disposition? These are over a year old, and >> part of an adoption call. >> >> Request: Can we please add an “Implementation Status” section? >> >> >> 2. New protocol invention outside of / rogue to an SFC OAM Framework. >> >> draft-ietf-sfc-multi-layer-oam does not reference any other SFC >> I-Ds. It does not build upon existing work in progress, and >> instead invents a new protocol with RFC8300 as the only Normative >> reference from SFC. >> >> The draft-ietf-sfc-oam-framework at >> https://tools.ietf.org/html/draft-ietf-sfc-oam-framework-06 takes >> a holistic approach of including an analysis (selecting only some >> section titles): >> 4.  SFC OAM Functions . . . . . . . . . . . . . . . . . . . . . .   8 >> 5.  Gap Analysis  . . . . . . . . . . . . . . . . . . . . . . . .  11 >> 5.1.  Existing OAM Functions  . . . . . . . . . . . . . . . . .  11 >> 5.2.  Missing OAM Functions . . . . . . . . . . . . . . . . . .  12 >> 6.4.  OAM Toolset applicability . . . . . . . . . . . . . . . .  13 >>        6.4.1.  ICMP Applicability  . . . . . . . . . . . . . . . . >> .  13 >> >> This analysis ought to guide protocol definition. >> >> Question: Can this draft consider existing protocols and gap >> performed before re-inventing? Specifically Normatively cite the >> SFC OAM Framework and see where reuse is best? >> >> >> 3. Existing implementation of OAM functions. >> >> Hows does this draft work with existing OAM functions with >> existing implementation, such as >> https://tools.ietf.org/html/draft-penno-sfc-trace-03 ? The fact >> that the draft is expired does not mean the implementation is uncoded. >> >> >> Many thanks, >> >> — Carlos Pignataro >> >>> On May 9, 2019, at 1:31 AM, Greg Mirsky >> > wrote: >>> >>> Dear All, >>> the update to the draft addresses the comment received from Joel >>> at the meeting in Prague: >>> - Joel: if we get an echo request we can't parse, how do we know >>> that it is an echo request, and do we have the information to >>> return it to the correct source? >>> - Greg: we will clarify this in the draft. It has to practical so >>> the sender can understand the situation.. We introduced two >>> classes of TLVs: mandatory and optional. Will add clearer text. >>> >>> A new TLV, Errored TLVs, introduced to be optionally used to pass >>> in an echo reply mandatory TLVs that were not understood because >>> either the implementation on the receiver does not support them >>> or couldn't parse them correctly. >>> >>> Also, please review the update to the interpretation of O-bit and >>> the value of the Next Protocol field to address Adrian's comments >>> at the meeting in Bangkok: >>> The rules of >>>    interpreting the values of O bit and the Next Protocol field >>> are as >>>    follows: >>> >>>    o  O bit set, and the Next Protocol value is not one of >>> identifying >>>       active or hybrid OAM protocol (per [RFC7799] definitions), >>> e.g., >>>       defined in this specification Active SFC OAM - a Fixed-Length >>>       Context Header or Variable-Length Context Header(s) contain OAM >>>       command or data.  and the type of payload determined by the >>> Next >>>       Protocol field; >>> >>>    o  O bit set, and the Next Protocol value is one of identifying >>>       active or hybrid OAM protocol - the payload that immediately >>>       follows SFC NSH contains OAM command or data; >>> >>>    o  O bit is clear - no OAM in a Fixed-Length Context Header or >>>       Variable-Length Context Header(s) and the payload determined by >>>       the value of the Next Protocol field; >>> >>>    o  O bit is clear and the Next Protocol value is one of >>> identifying >>>       active or hybrid OAM protocol MUST be identified and >>> reported as >>>       the erroneous combination.  An implementation MAY have >>> control to >>>       enable processing of the OAM payload. >>> >>>    From the above-listed rules follows the recommendation to avoid >>>    combination of OAM in a Fixed-Length Context Header or Variable- >>>    Length Context Header(s) and in the payload immediately >>> following the >>>    SFC NSH because there is no unambiguous way to identify such >>>    combination using the O bit and the Next Protocol field. >>> >>> Regards, >>> Greg >>> >>> ---------- Forwarded message --------- >>> From: > >>> Date: Wed, May 8, 2019 at 10:21 PM >>> Subject: New Version Notification for >>> draft-ietf-sfc-multi-layer-oam-03.txt >>> To: >, Gregory >>> Mirsky >, >>> Bhumip Khasnabish >, >>> Wei Meng >, >>> Cui(Linda) Wang >> > >>> >>> >>> >>> A new version of I-D, draft-ietf-sfc-multi-layer-oam-03.txt >>> has been successfully submitted by Greg Mirsky and posted to the >>> IETF repository. >>> >>> Name:           draft-ietf-sfc-multi-layer-oam >>> Revision:       03 >>> Title:          Active OAM for Service Function Chains in Networks >>> Document date:  2019-05-08 >>> Group:          sfc >>> Pages:          18 >>> URL: >>> https://www.ietf.org/internet-drafts/draft-ietf-sfc-multi-layer-oam-03.txt >>> Status: >>> https://datatracker.ietf.org/doc/draft-ietf-sfc-multi-layer-oam/ >>> Htmlized: >>> https://tools.ietf.org/html/draft-ietf-sfc-multi-layer-oam-03 >>> Htmlized: >>> https://datatracker.ietf.org/doc/html/draft-ietf-sfc-multi-layer-oam >>> Diff: >>> https://www.ietf.org/rfcdiff?url2=draft-ietf-sfc-multi-layer-oam-03 >>> >>> Abstract: >>>    A set of requirements for active Operation, Administration and >>>    Maintenance (OAM) of Service Function Chains (SFCs) in networks is >>>    presented.  Based on these requirements an encapsulation of active >>>    OAM message in SFC and a mechanism to detect and localize defects >>>    described.  Also, this document updates RFC 8300 in the >>> definition of >>>    O (OAM) bit in the Network Service Header (NSH) and defines >>> how the >>>    active OAM message identified in SFC NSH. >>> >>> >>> >>> >>> Please note that it may take a couple of minutes from the time of >>> submission >>> until the htmlized version and diff are available at >>> tools.ietf.org . >>> >>> The IETF Secretariat >>> >>> _______________________________________________ >>> sfc mailing list >>> sfc@ietf.org >>> https://www.ietf.org/mailman/listinfo/sfc >> > > > _______________________________________________ > sfc mailing list > sfc@ietf.org > https://www.ietf.org/mailman/listinfo/sfc > From nobody Fri May 10 20:58:28 2019 Return-Path: X-Original-To: sfc@ietfa.amsl.com Delivered-To: sfc@ietfa.amsl.com Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id 238DC120141 for ; 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d="scan'208,217";a="274075859" Received: from rcdn-core-5.cisco.com ([173.37.93.156]) by alln-iport-6.cisco.com with ESMTP/TLS/DHE-RSA-SEED-SHA; 11 May 2019 03:58:19 +0000 Received: from XCH-RTP-016.cisco.com (xch-rtp-016.cisco.com [64.101.220.156]) by rcdn-core-5.cisco.com (8.15.2/8.15.2) with ESMTPS id x4B3wI58011569 (version=TLSv1.2 cipher=AES256-SHA bits=256 verify=FAIL); Sat, 11 May 2019 03:58:19 GMT Received: from xch-rtp-020.cisco.com (64.101.220.160) by XCH-RTP-016.cisco.com (64.101.220.156) with Microsoft SMTP Server (TLS) id 15.0.1473.3; Fri, 10 May 2019 23:58:18 -0400 Received: from xch-rtp-020.cisco.com ([64.101.220.160]) by XCH-RTP-020.cisco.com ([64.101.220.160]) with mapi id 15.00.1473.003; Fri, 10 May 2019 23:58:18 -0400 From: "Carlos Pignataro (cpignata)" To: "Joel M. Halpern" CC: Greg Mirsky , Service Function Chaining IETF list Thread-Topic: [sfc] New Version Notification for draft-ietf-sfc-multi-layer-oam-03.txt Thread-Index: AQHVB6S3vuqtmZ+lwU+/KBkoNG/gmqZlgwqAgAAFroCAAAPFAIAAAs6A Date: Sat, 11 May 2019 03:58:18 +0000 Message-ID: <71B94EC7-0865-4028-A994-93F1FE187098@cisco.com> References: <155737926141.22620.15797109690906794999.idtracker@ietfa.amsl.com> <11BA26AF-FB36-497C-9F9E-76E9658BFF47@cisco.com> <5fa6548c-7bfc-210a-7d5f-24d8d014934e@joelhalpern.com> In-Reply-To: <5fa6548c-7bfc-210a-7d5f-24d8d014934e@joelhalpern.com> Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: x-mailer: Apple Mail (2.3445.104.8) x-ms-exchange-messagesentrepresentingtype: 1 x-ms-exchange-transport-fromentityheader: Hosted x-originating-ip: [10.118.116.132] Content-Type: multipart/alternative; boundary="_000_71B94EC708654028A99493F1FE187098ciscocom_" MIME-Version: 1.0 X-Outbound-SMTP-Client: 64.101.220.156, xch-rtp-016.cisco.com X-Outbound-Node: rcdn-core-5.cisco.com Archived-At: Subject: Re: [sfc] New Version Notification for draft-ietf-sfc-multi-layer-oam-03.txt X-BeenThere: sfc@ietf.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Network Service Chaining List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sat, 11 May 2019 03:58:26 -0000 --_000_71B94EC708654028A99493F1FE187098ciscocom_ Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Sm9lbCwNCg0KSW4gcmVnYXJkcyB0byB0aGUg4oCcSW1wbGVtZW50YXRpb24gU3RhdHVz4oCdIHNl Y3Rpb24sIEkgYW0gYWJzb2x1dGVseSBPSyBpZiB0aGUgYXV0aG9ycyBpbnRlbnRpb25hbGx5IGFu ZCBkZWxpYmVyYXRlbHkgY2hvb3NlIG5vdCB0byBpbmNsdWRlIGl0IGFuZCBleHBsYWluIHRoZSBy YXRpb25hbGUgd2hlbiBhc2tlZCwgYW5kIGNsZWFybHkgT0sgaWYgdGhlcmUgYXJlIG5vIGltcGxl bWVudGF0aW9ucy4NCg0KTXkgY29uY2VybiBoZXJlIGlzIHRoYXQgbmVpdGhlciBvZiB0aG9zZSB0 d28gaGF2ZSBiZWVuIGFuc3dlcmVkIGJ5IGFuIGF1dGhvciB5ZXQuICgxLiBBcmUgdGhlcmUgaW1w 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certificate requested) by maila2.tigertech.net (Postfix) with ESMTPSA id 451DX05ZxLz1S5Rr; Fri, 10 May 2019 21:25:20 -0700 (PDT) To: "Carlos Pignataro (cpignata)" , Greg Mirsky Cc: Service Function Chaining IETF list References: <155737926141.22620.15797109690906794999.idtracker@ietfa.amsl.com> <11BA26AF-FB36-497C-9F9E-76E9658BFF47@cisco.com> From: "Joel M. Halpern" Message-ID: Date: Sat, 11 May 2019 00:25:19 -0400 User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.14; rv:60.0) Gecko/20100101 Thunderbird/60.6.1 MIME-Version: 1.0 In-Reply-To: <11BA26AF-FB36-497C-9F9E-76E9658BFF47@cisco.com> Content-Type: text/plain; charset=utf-8; format=flowed Content-Language: en-US Content-Transfer-Encoding: 8bit Archived-At: Subject: Re: [sfc] New Version Notification for draft-ietf-sfc-multi-layer-oam-03.txt X-BeenThere: sfc@ietf.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Network Service Chaining List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sat, 11 May 2019 04:25:24 -0000 It has been suggested (with good reason) that my previous response may have been unclear. So, speaking as chair: 1) Carlos did not demand. He asked. Even if Greg disagrees with the ask, re-casting it as "demand" was inappropriate. 2) Given that Carlos has made these requests before, timely and clear responses from Greg are necessary. To all of the asks. Greg, you are free to disagree. But you are not free to ignore. Yours, Joel On 5/10/19 11:34 PM, Carlos Pignataro (cpignata) wrote: > Dear SFC Chairs, > > I believe Greg’s response is mis-representing my position, and > mis-quoting what I wrote, as follows: > > Greg wrote: >> Thus I'm puzzled why are you demanding that this optional section be >> added to the draft now? > > 1. I am not demanding. Instead I wrote: >> >> Request: Can we please add an “Implementation Status” section? >> > > Greg wrote: >> Thus I'm puzzled why are you demanding that this optional section be >> added to the draft now? > > However, I suggested this over a year ago, and then 6 months ago, as per > the list posting included below. Not “now”. >> >> * March 29, 2018, on draft-wang-sfc-multi-layer-oam >> https://mailarchive.ietf.org/arch/msg/nvo3/eNRV-7GLWO_lLeeXwI97HhTrtBo >> * October 27, 2018, on adoption >> https://mailarchive.ietf.org/arch/msg/sfc/wuK4MiyeOMNbXrRIYjiW7zCtZ70 >> > > > My main request is that on-list comments and suggestions are responded > to and discussed on technical merits. The previous two/three times, my > comment was ignored and not responded to. > > I also do not understand why questions are selectively ignored. I asked > three questions on this email, but received a response to only one. > > > Dear Greg, > > Sorry to have puzzled you. That was not the intention. The intention was > to engage in a technical discussion about an Internet Best Current Practice. > > Apologies if I sounded (or was) repetitive, just seeking an answer. > > I understand the “Implementation Status” section is optional, but since > Internet documents are (among other things) for interoperability, I > kindly request you consider adding that optional section. Besides the > one-liner you quoted, RFC 7942 goes into great lengths at explaining the > importance of doing so. > > You also mention: >> Yes, the work on the implementation is ongoing > > Does this mean “the implementation” as in only one? > > Best, > > — Carlos Pignataro > > >> On May 10, 2019, at 11:14 PM, Greg Mirsky > > wrote: >> >> Hi Carlos, >> I'm sure you've read the section "Implementation Status" in RFC 7942 >> that opens with the following sentence: >>    Each Internet-Draft may contain a section entitled "Implementation >> Status". >> Thus I'm puzzled why are you demanding that this optional section be >> added to the draft now? Yes, the work on the implementation is ongoing >> and when there will be updates, we'll certainly share them with the WG. >> >> Regards, >> Greg >> >> On Fri, May 10, 2019 at 7:53 PM Carlos Pignataro (cpignata) >> > wrote: >> >> Hi, Greg, SFC, >> >> In order to understand the positioning of >> draft-ietf-sfc-multi-layer-oam, please find 3 high-level yet very >> important questions and associated comments for consideration. >> >> To avoid potential misinterpretation and to be explicit on this >> note's intention: this email does not imply interest in this >> draft, does not mean support, I have not read the document fully. >> >> But a quick note for completeness: >> >> 1. “Implementation Status” Section. >> >> The authors seem to selectively respond to comments. >> >> I asked for an “Implementation Status” Section [RFC7942] at least >> two or three times: >> * March 29, 2018, on draft-wang-sfc-multi-layer-oam >> https://mailarchive.ietf.org/arch/msg/nvo3/eNRV-7GLWO_lLeeXwI97HhTrtBo >> * October 27, 2018, on adoption >> https://mailarchive.ietf.org/arch/msg/sfc/wuK4MiyeOMNbXrRIYjiW7zCtZ70 >> >> Instead, this drafts seems to be inventing a full blown protocol >> without implementation practice. >> >> SFC Chairs, could we please follow-up on repeated comments made on >> the list and track a disposition? These are over a year old, and >> part of an adoption call. >> >> Request: Can we please add an “Implementation Status” section? >> >> >> 2. New protocol invention outside of / rogue to an SFC OAM Framework. >> >> draft-ietf-sfc-multi-layer-oam does not reference any other SFC >> I-Ds. It does not build upon existing work in progress, and >> instead invents a new protocol with RFC8300 as the only Normative >> reference from SFC. >> >> The draft-ietf-sfc-oam-framework at >> https://tools.ietf.org/html/draft-ietf-sfc-oam-framework-06 takes >> a holistic approach of including an analysis (selecting only some >> section titles): >> 4.  SFC OAM Functions . . . . . . . . . . . . . . . . . . . . . .   8 >> 5.  Gap Analysis  . . . . . . . . . . . . . . . . . . . . . . . .  11 >> 5.1.  Existing OAM Functions  . . . . . . . . . . . . . . . . .  11 >> 5.2.  Missing OAM Functions . . . . . . . . . . . . . . . . . .  12 >> 6.4.  OAM Toolset applicability . . . . . . . . . . . . . . . .  13 >>        6.4.1.  ICMP Applicability  . . . . . . . . . . . . . . . . >> .  13 >> >> This analysis ought to guide protocol definition. >> >> Question: Can this draft consider existing protocols and gap >> performed before re-inventing? Specifically Normatively cite the >> SFC OAM Framework and see where reuse is best? >> >> >> 3. Existing implementation of OAM functions. >> >> Hows does this draft work with existing OAM functions with >> existing implementation, such as >> https://tools.ietf.org/html/draft-penno-sfc-trace-03 ? The fact >> that the draft is expired does not mean the implementation is uncoded. >> >> >> Many thanks, >> >> — Carlos Pignataro >> >>> On May 9, 2019, at 1:31 AM, Greg Mirsky >> > wrote: >>> >>> Dear All, >>> the update to the draft addresses the comment received from Joel >>> at the meeting in Prague: >>> - Joel: if we get an echo request we can't parse, how do we know >>> that it is an echo request, and do we have the information to >>> return it to the correct source? >>> - Greg: we will clarify this in the draft. It has to practical so >>> the sender can understand the situation.. We introduced two >>> classes of TLVs: mandatory and optional. Will add clearer text. >>> >>> A new TLV, Errored TLVs, introduced to be optionally used to pass >>> in an echo reply mandatory TLVs that were not understood because >>> either the implementation on the receiver does not support them >>> or couldn't parse them correctly. >>> >>> Also, please review the update to the interpretation of O-bit and >>> the value of the Next Protocol field to address Adrian's comments >>> at the meeting in Bangkok: >>> The rules of >>>    interpreting the values of O bit and the Next Protocol field >>> are as >>>    follows: >>> >>>    o  O bit set, and the Next Protocol value is not one of >>> identifying >>>       active or hybrid OAM protocol (per [RFC7799] definitions), >>> e.g., >>>       defined in this specification Active SFC OAM - a Fixed-Length >>>       Context Header or Variable-Length Context Header(s) contain OAM >>>       command or data.  and the type of payload determined by the >>> Next >>>       Protocol field; >>> >>>    o  O bit set, and the Next Protocol value is one of identifying >>>       active or hybrid OAM protocol - the payload that immediately >>>       follows SFC NSH contains OAM command or data; >>> >>>    o  O bit is clear - no OAM in a Fixed-Length Context Header or >>>       Variable-Length Context Header(s) and the payload determined by >>>       the value of the Next Protocol field; >>> >>>    o  O bit is clear and the Next Protocol value is one of >>> identifying >>>       active or hybrid OAM protocol MUST be identified and >>> reported as >>>       the erroneous combination.  An implementation MAY have >>> control to >>>       enable processing of the OAM payload. >>> >>>    From the above-listed rules follows the recommendation to avoid >>>    combination of OAM in a Fixed-Length Context Header or Variable- >>>    Length Context Header(s) and in the payload immediately >>> following the >>>    SFC NSH because there is no unambiguous way to identify such >>>    combination using the O bit and the Next Protocol field. >>> >>> Regards, >>> Greg >>> >>> ---------- Forwarded message --------- >>> From: > >>> Date: Wed, May 8, 2019 at 10:21 PM >>> Subject: New Version Notification for >>> draft-ietf-sfc-multi-layer-oam-03.txt >>> To: >, Gregory >>> Mirsky >, >>> Bhumip Khasnabish >, >>> Wei Meng >, >>> Cui(Linda) Wang >> > >>> >>> >>> >>> A new version of I-D, draft-ietf-sfc-multi-layer-oam-03.txt >>> has been successfully submitted by Greg Mirsky and posted to the >>> IETF repository. >>> >>> Name:           draft-ietf-sfc-multi-layer-oam >>> Revision:       03 >>> Title:          Active OAM for Service Function Chains in Networks >>> Document date:  2019-05-08 >>> Group:          sfc >>> Pages:          18 >>> URL: >>> https://www.ietf.org/internet-drafts/draft-ietf-sfc-multi-layer-oam-03.txt >>> Status: >>> https://datatracker.ietf.org/doc/draft-ietf-sfc-multi-layer-oam/ >>> Htmlized: >>> https://tools.ietf.org/html/draft-ietf-sfc-multi-layer-oam-03 >>> Htmlized: >>> https://datatracker.ietf.org/doc/html/draft-ietf-sfc-multi-layer-oam >>> Diff: >>> https://www.ietf.org/rfcdiff?url2=draft-ietf-sfc-multi-layer-oam-03 >>> >>> Abstract: >>>    A set of requirements for active Operation, Administration and >>>    Maintenance (OAM) of Service Function Chains (SFCs) in networks is >>>    presented.  Based on these requirements an encapsulation of active >>>    OAM message in SFC and a mechanism to detect and localize defects >>>    described.  Also, this document updates RFC 8300 in the >>> definition of >>>    O (OAM) bit in the Network Service Header (NSH) and defines >>> how the >>>    active OAM message identified in SFC NSH. >>> >>> >>> >>> >>> Please note that it may take a couple of minutes from the time of >>> submission >>> until the htmlized version and diff are available at >>> tools.ietf.org . >>> >>> The IETF Secretariat >>> >>> _______________________________________________ >>> sfc mailing list >>> sfc@ietf.org >>> https://www.ietf.org/mailman/listinfo/sfc >> > > > _______________________________________________ > sfc mailing list > sfc@ietf.org > https://www.ietf.org/mailman/listinfo/sfc > From nobody Thu May 16 12:25:16 2019 Return-Path: X-Original-To: sfc@ietfa.amsl.com Delivered-To: sfc@ietfa.amsl.com Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id 37E9D120283 for ; 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Thu, 16 May 2019 12:25:14 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=joelhalpern.com; s=2.tigertech; t=1558034714; bh=Yx/UOEU3aelcrXdGTkzey4bt3QWEBlWuwBADbQ8J9eQ=; h=To:From:Subject:Date:From; b=S9ducUaHOIm++j1PDz6PbbLQ8gYJo2AoSyyDkTpm9ACYZwcWqRl2QP4MKewV9hZ1S Q+EIQWSRgbM0RcB3p4o2TD9EX3OM6SvYcQeHyXlqRZrP48BRMtF1saaYpVaEBrhhup fI9gyPDbAlhFtfeQKHpiHO35XPWURUVy8pAVdYo4= X-Virus-Scanned: Debian amavisd-new at b2.tigertech.net Received: from Joels-MacBook-Pro.local (209-255-163-147.ip.mcleodusa.net [209.255.163.147]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by mailb2.tigertech.net (Postfix) with ESMTPSA id 454hG1539TzFpkp for ; Thu, 16 May 2019 12:25:13 -0700 (PDT) To: "sfc@ietf.org" From: "Joel M. Halpern" Message-ID: Date: Thu, 16 May 2019 15:25:12 -0400 User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.14; rv:60.0) Gecko/20100101 Thunderbird/60.6.1 MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8; format=flowed Content-Language: en-US Content-Transfer-Encoding: 7bit Archived-At: Subject: [sfc] Upcoming non-meeting X-BeenThere: sfc@ietf.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Network Service Chaining List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 16 May 2019 19:25:15 -0000 Based on the lack of engagement on any topic on the mailing list, Jim and I do not see the likelihood that the SFC working group can make effetive use of a face-to-face session. While we hope for more on-list engagement, we do not plan to ask for a slot fo teh working group at IETF 105 in Montreal. Yours, Joel (and Jim) From nobody Thu May 16 12:40:25 2019 Return-Path: X-Original-To: sfc@ietfa.amsl.com Delivered-To: sfc@ietfa.amsl.com Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id 3102D12028C for ; Thu, 16 May 2019 12:40:24 -0700 (PDT) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -2.7 X-Spam-Level: X-Spam-Status: No, score=-2.7 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_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 (1024-bit key) header.d=joelhalpern.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 8Rlm2y1zizRl for ; Thu, 16 May 2019 12:40:22 -0700 (PDT) Received: from mailb2.tigertech.net (mailb2.tigertech.net [208.80.4.154]) (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 875E9120289 for ; Thu, 16 May 2019 12:40:22 -0700 (PDT) Received: from localhost (localhost [127.0.0.1]) by mailb2.tigertech.net (Postfix) with ESMTP id 454hbV0jbczFpqD for ; Thu, 16 May 2019 12:40:22 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=joelhalpern.com; s=2.tigertech; t=1558035622; bh=s2NKmi3yKMFrbX1aCzRcRtIXiE8S82eigI0VlABjwDw=; h=Subject:From:To:References:Date:In-Reply-To:From; b=OCrr5CqRqBzW75hG35zY9zC++xjuPLyj4FJQe0nVt9h3niOO4EL7jOpgDxLlWd2s9 N/hmt7EG5DofOu74qsrVRYL9ZVqdFVgHbb8QwB47p23Dd61uZQmIm+/iFKfTvrsmnq 9OthPw4ei9uvPqHdS+P7kCR8wBIA+5j4HkkXwYtE= X-Virus-Scanned: Debian amavisd-new at b2.tigertech.net Received: from Joels-MacBook-Pro.local (209-255-163-147.ip.mcleodusa.net [209.255.163.147]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by mailb2.tigertech.net (Postfix) with ESMTPSA id 454hbT4nK3zFpZh for ; Thu, 16 May 2019 12:40:21 -0700 (PDT) From: "Joel M. Halpern" To: "sfc@ietf.org" References: Message-ID: <5def9f76-e85a-6bd4-c90b-44cbf5ba3b8a@joelhalpern.com> Date: Thu, 16 May 2019 15:40:20 -0400 User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.14; rv:60.0) Gecko/20100101 Thunderbird/60.6.1 MIME-Version: 1.0 In-Reply-To: Content-Type: text/plain; charset=utf-8; format=flowed Content-Language: en-US Content-Transfer-Encoding: 7bit Archived-At: Subject: Re: [sfc] Upcoming non-meeting X-BeenThere: sfc@ietf.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Network Service Chaining List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 16 May 2019 19:40:24 -0000 And I apologize to the working group for the many typos in that message. I wanted to get it out. I should have taken the time to proffread. Sorry. Joel On 5/16/19 3:25 PM, Joel M. Halpern wrote: > Based on the lack of engagement on any topic on the mailing list, Jim > and I do not see the likelihood that the SFC working group can make > effetive use of a face-to-face session. > > While we hope for more on-list engagement, we do not plan to ask for a > slot fo teh working group at IETF 105 in Montreal. > > Yours, > Joel (and Jim) > > _______________________________________________ > sfc mailing list > sfc@ietf.org > https://www.ietf.org/mailman/listinfo/sfc > From nobody Sat May 18 13:01:27 2019 Return-Path: X-Original-To: sfc@ietfa.amsl.com Delivered-To: sfc@ietfa.amsl.com Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id 5E7BD120119 for ; Sat, 18 May 2019 13:01:25 -0700 (PDT) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -1.998 X-Spam-Level: X-Spam-Status: No, score=-1.998 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, FREEMAIL_FROM=0.001, HTML_MESSAGE=0.001, RCVD_IN_DNSWL_NONE=-0.0001, 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 PzoLpIyUOvMO for ; Sat, 18 May 2019 13:01:22 -0700 (PDT) Received: from mail-lf1-x135.google.com (mail-lf1-x135.google.com [IPv6:2a00:1450:4864:20::135]) (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 9F0DB1200F7 for ; Sat, 18 May 2019 13:01:21 -0700 (PDT) Received: by mail-lf1-x135.google.com with SMTP id v18so7621661lfi.1 for ; Sat, 18 May 2019 13:01:21 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=mime-version:references:in-reply-to:from:date:message-id:subject:to :cc; bh=FB4j0vrXFyQ/dIOeWx36tz8y1gfbOTZpsWk6pJzG3NY=; b=Mq/kJLe9m+nYmDhlIr9JHN4w2jzZRomt+zAWc3588Z0biq+T7bDPOjRK7og470aebp L/Dy7aCFeOYKn1JC6nfZ77uRrj9UMMv6/yYmGtvuNHOjvNRqhPmJFhhbhnjVk5JWolNb X6KDHSYlcHsFpslFkdI5Et9JQgf4GQsV/AfdHTuU/uTXpCYsfZhLiSAejORf97fwPwgK /E2S/9m0wYiUK+YvL8uRCwOa1qRItoCCV9G+0mpae0i2ZPaiqozq017VObPs3bNzpUne WBW6BG1H69NEF3kKKByn2LbqcU7qMp47RbOpVHRPFT3Lj/mWyGY6veb8GFZA/t9f4fhN Pgtg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:references:in-reply-to:from:date :message-id:subject:to:cc; bh=FB4j0vrXFyQ/dIOeWx36tz8y1gfbOTZpsWk6pJzG3NY=; b=WzdRXvhqnJmdUCnVaa78owUAOaDdU5QwlMZqkKG1UyRYFw+024O+ZVo2ymWX34O0MS 741zQotj0GXOMsXoyUkbaZdIW1qmOYqF0DKtaag5GvN2lmo4jbQJoOH0TVX6r3bGF5MU 5IBSkX7dNjrd5JN213/oBKdCwIoLMWSqz5a6wL2RumRY0dXZXdUaFLhxh9CxqLKfGpWu ASe3A6iV4y9B7fidXDuKptmhuPQrj8iCu/689NtlRZHtJ1sQtzvXg3fVveIgAg1Ux8wP VuLz9EO4qKfL7htabTU/QxjAPDj1TL0+fkQXbrgst0kevDyN8tn4f6eC42gfUgVP61sO pdWg== X-Gm-Message-State: APjAAAVkwZG/QPzwWRcbVJTibobU7KR+Zk2DfmMl20CUq1Tz8YKKV64p 5BBl1USO4O7bGPYWH/jIqRyctMWYAMmGMXTTenA= X-Google-Smtp-Source: APXvYqzKD0Ey1xdftqT5l0X4y1Dj3lNZsDqTta0sCtKZS5I8/LVOGQ9F6XCeVcqBwULlnka3LVID9OVRfSwAIptDZXM= X-Received: by 2002:a19:9f01:: with SMTP id i1mr30677742lfe.98.1558209679671; Sat, 18 May 2019 13:01:19 -0700 (PDT) MIME-Version: 1.0 References: <155737926141.22620.15797109690906794999.idtracker@ietfa.amsl.com> In-Reply-To: From: Greg Mirsky Date: Sat, 18 May 2019 13:01:07 -0700 Message-ID: To: "Carlos Pignataro (cpignata)" Cc: Service Function Chaining IETF list Content-Type: multipart/alternative; boundary="00000000000071458805892ef60b" Archived-At: Subject: Re: [sfc] New Version Notification for draft-ietf-sfc-multi-layer-oam-03.txt X-BeenThere: sfc@ietf.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Network Service Chaining List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sat, 18 May 2019 20:01:26 -0000 --00000000000071458805892ef60b Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable Hi Carlos, please find responses to your questions in-line and tagged GIM>>. Regards, Greg On Fri, May 10, 2019 at 7:53 PM Carlos Pignataro (cpignata) < cpignata@cisco.com> wrote: > Hi, Greg, SFC, > > In order to understand the positioning of draft-ietf-sfc-multi-layer-oam, > please find 3 high-level yet very important questions and associated > comments for consideration. > > To avoid potential misinterpretation and to be explicit on this note's > intention: this email does not imply interest in this draft, does not mea= n > support, I have not read the document fully. > > But a quick note for completeness: > > 1. =E2=80=9CImplementation Status=E2=80=9D Section. > > The authors seem to selectively respond to comments. > > I asked for an =E2=80=9CImplementation Status=E2=80=9D Section [RFC7942] = at least two or > three times: > * March 29, 2018, on draft-wang-sfc-multi-layer-oam > https://mailarchive.ietf.org/arch/msg/nvo3/eNRV-7GLWO_lLeeXwI97HhTrtBo > * October 27, 2018, on adoption > https://mailarchive.ietf.org/arch/msg/sfc/wuK4MiyeOMNbXrRIYjiW7zCtZ70 > > Instead, this drafts seems to be inventing a full blown protocol without > implementation practice. > > SFC Chairs, could we please follow-up on repeated comments made on the > list and track a disposition? These are over a year old, and part of an > adoption call. > > Request: Can we please add an =E2=80=9CImplementation Status=E2=80=9D sec= tion? > GIM>> As usual, the implementation status will be reflected in the Shepherd write-up. > > > 2. New protocol invention outside of / rogue to an SFC OAM Framework. > > draft-ietf-sfc-multi-layer-oam does not reference any other SFC I-Ds. It > does not build upon existing work in progress, and instead invents a new > protocol with RFC8300 as the only Normative reference from SFC. > GIM>> Isn't it a contradiction between your statements "draft-ietf-sfc-multi-layer-oam does not reference any other SFC I-Ds" and "RFC8300 as the only Normative reference from SFC"? On the state of the SFC OAM Framework document. I don't recall a discussion of the draft at any recent SFC WG meeting. Indeed, there were many updates, plenty of information added that should be reviewed by the WG. At the same time, contributions to draft-ietf-sfc-multi-layer-oam are always welcome. Will be glad to discuss them. > > The draft-ietf-sfc-oam-framework at > https://tools.ietf.org/html/draft-ietf-sfc-oam-framework-06 takes a > holistic approach of including an analysis (selecting only some section > titles): > 4. SFC OAM Functions . . . . . . . . . . . . . . . . . . . . . . 8 > 5. Gap Analysis . . . . . . . . . . . . . . . . . . . . . . . . 11 > 5.1. Existing OAM Functions . . . . . . . . . . . . . . . . . 11 > 5.2. Missing OAM Functions . . . . . . . . . . . . . . . . . . 12 > 6.4. OAM Toolset applicability . . . . . . . . . . . . . . . . 13 > 6.4.1. ICMP Applicability . . . . . . . . . . . . . . . . . 13 > > This analysis ought to guide protocol definition. > GIM>> draft-ietf-sfc-oam-framework has not been discussed by the SFC WG since even though much of material has been added to it. > > Question: Can this draft consider existing protocols and gap performed > before re-inventing? Specifically Normatively cite the SFC OAM Framework > and see where reuse is best? > GIM>> SFC OAM Framework has Informational document track and I don't see a good reason of making it Normative reference for draft-ietf-sfc-multi-layer-oam. > > > 3. Existing implementation of OAM functions. > > Hows does this draft work with existing OAM functions with existing > implementation, such as > https://tools.ietf.org/html/draft-penno-sfc-trace-03 ? The fact that the > draft is expired does not mean the implementation is uncoded. > GIM>> How it can interwork with something that is not fully documented, which state is unknown, uncertain? The goal of writing, developing standards is to ensure interoperability among implementations. If someone is not committed to the development of their solution for the interoperable multi-vendor environment, then what we can do in such case? You are the co-author of the draft and I encourage you to re-start the work, bring to WG for the discussion. > > > Many thanks, > > =E2=80=94 Carlos Pignataro > > On May 9, 2019, at 1:31 AM, Greg Mirsky wrote: > > Dear All, > the update to the draft addresses the comment received from Joel at the > meeting in Prague: > - Joel: if we get an echo request we can't parse, how do we know that it > is an echo request, and do we have the information to return it to the > correct source? > - Greg: we will clarify this in the draft. It has to practical so the > sender can understand the situation.. We introduced two classes of TLVs: > mandatory and optional. Will add clearer text. > > A new TLV, Errored TLVs, introduced to be optionally used to pass in an > echo reply mandatory TLVs that were not understood because either the > implementation on the receiver does not support them or couldn't parse th= em > correctly. > > Also, please review the update to the interpretation of O-bit and the > value of the Next Protocol field to address Adrian's comments at the > meeting in Bangkok: > The rules of > interpreting the values of O bit and the Next Protocol field are as > follows: > > o O bit set, and the Next Protocol value is not one of identifying > active or hybrid OAM protocol (per [RFC7799] definitions), e.g., > defined in this specification Active SFC OAM - a Fixed-Length > Context Header or Variable-Length Context Header(s) contain OAM > command or data. and the type of payload determined by the Next > Protocol field; > > o O bit set, and the Next Protocol value is one of identifying > active or hybrid OAM protocol - the payload that immediately > follows SFC NSH contains OAM command or data; > > o O bit is clear - no OAM in a Fixed-Length Context Header or > Variable-Length Context Header(s) and the payload determined by > the value of the Next Protocol field; > > o O bit is clear and the Next Protocol value is one of identifying > active or hybrid OAM protocol MUST be identified and reported as > the erroneous combination. An implementation MAY have control to > enable processing of the OAM payload. > > From the above-listed rules follows the recommendation to avoid > combination of OAM in a Fixed-Length Context Header or Variable- > Length Context Header(s) and in the payload immediately following the > SFC NSH because there is no unambiguous way to identify such > combination using the O bit and the Next Protocol field. > > Regards, > Greg > > ---------- Forwarded message --------- > From: > Date: Wed, May 8, 2019 at 10:21 PM > Subject: New Version Notification for draft-ietf-sfc-multi-layer-oam-03.t= xt > To: , Gregory Mirsky , Bhumip > Khasnabish , Wei Meng >, Cui(Linda) Wang > > > > A new version of I-D, draft-ietf-sfc-multi-layer-oam-03.txt > has been successfully submitted by Greg Mirsky and posted to the > IETF repository. > > Name: draft-ietf-sfc-multi-layer-oam > Revision: 03 > Title: Active OAM for Service Function Chains in Networks > Document date: 2019-05-08 > Group: sfc > Pages: 18 > URL: > https://www.ietf.org/internet-drafts/draft-ietf-sfc-multi-layer-oam-03.tx= t > Status: > https://datatracker.ietf.org/doc/draft-ietf-sfc-multi-layer-oam/ > Htmlized: > https://tools.ietf.org/html/draft-ietf-sfc-multi-layer-oam-03 > Htmlized: > https://datatracker.ietf.org/doc/html/draft-ietf-sfc-multi-layer-oam > Diff: > https://www.ietf.org/rfcdiff?url2=3Ddraft-ietf-sfc-multi-layer-oam-03 > > Abstract: > A set of requirements for active Operation, Administration and > Maintenance (OAM) of Service Function Chains (SFCs) in networks is > presented. Based on these requirements an encapsulation of active > OAM message in SFC and a mechanism to detect and localize defects > described. Also, this document updates RFC 8300 in the definition of > O (OAM) bit in the Network Service Header (NSH) and defines how the > active OAM message identified in SFC NSH. > > > > > Please note that it may take a couple of minutes from the time of > submission > until the htmlized version and diff are available at tools.ietf.org. > > The IETF Secretariat > > _______________________________________________ > sfc mailing list > sfc@ietf.org > https://www.ietf.org/mailman/listinfo/sfc > > > --00000000000071458805892ef60b Content-Type: text/html; charset="UTF-8" Content-Transfer-Encoding: quoted-printable
Hi Carlos,
please find responses to y= our questions in-line and tagged GIM>>.

Rega= rds,
Greg

On Fri, May 10, 2019 at 7:53 PM Carlos Pignataro (= cpignata) <cpignata@cisco.com&= gt; wrote:
Hi, Greg, SFC,

In order to understand the positioning of draft-ietf-sfc-multi-layer-o= am, please find 3 high-level yet very important questions and associated co= mments for consideration.

To avoid potential misinterpretation and to be explicit on this note&#= 39;s intention: this email does not imply interest in this draft, does not = mean support, I have not read the document fully.=C2=A0

But a quick note for completeness:

1. =E2=80=9CImplementation Status=E2=80=9D Section.

The authors seem to selectively respond to comments.

I asked for an =E2=80=9CImplementation Status=E2=80=9D Section [RFC794= 2] at least two or three times:
* March 29, 2018, on draft-wang-sfc-multi-layer-oam=C2=A0https://mailarchive.ietf.org/arch/msg/nvo3/eNRV-7GLWO_lLeeXwI9= 7HhTrtBo

Instead, this drafts seems to be inventing a full blown protocol witho= ut implementation practice.

SFC Chairs, could we please follow-up on repeated comments made on the= list and track a disposition? These are over a year old, and part of an ad= option call.

Request: Can we please add an =E2=80=9CImplementation Status=E2=80=9D = section?
GIM>> As usual, the implementat= ion status will be reflected in the Shepherd write-up.=C2=A0


2. New protocol invention outside of / rogue to an SFC OAM Framework.<= /div>

draft-ietf-sfc-multi-layer-oam does not reference any other SFC I-Ds. = It does not build upon existing work in progress, and instead invents a new= protocol with=C2=A0RFC8300 as the only Normative reference from SFC.
=
GIM>> Isn't it a contradiction between yo= ur statements "draft-ietf-sfc-multi-layer-oam does not reference any o= ther SFC I-Ds" and "RFC8300 as the only Normative reference from = SFC"?
On the state of the SFC OAM Framework document. I don&= #39;t recall a discussion of the draft at any recent SFC WG meeting. Indeed= , there were many updates, plenty of information added that should be revie= wed by the WG. At the same time, contributions to draft-ietf-sfc-multi-laye= r-oam are always welcome. Will be glad to discuss them.

The=C2=A0draft-ietf-sfc-oam-framework at=C2=A0https://t= ools.ietf.org/html/draft-ietf-sfc-oam-framework-06=C2=A0takes a holisti= c approach of including an analysis (selecting only some section titles):
4.=C2=A0 SFC OAM Functions . . . . . . . . . . . . . . . . . . . . . .= =C2=A0=C2=A08 =C2=A0=C2=A0
5.=C2=A0 Gap Analysis =C2=A0. . . . . . . . . . . . . . . . . . . . . . . .= =C2=A011 =C2=A0 =C2=A0=C2=A0
5.1.=C2=A0 Existing OAM Functions =C2=A0. . . . . . . . . . . . . . . . . = =C2=A011
5.2.=C2=A0 Missing OAM Functions . . . . . . . . . . . . . . . . . . =C2=A0= 12
6.4.=C2=A0 OAM Toolset applicability . . . . . . . . . . . . . . . . =C2=A0= 13
=C2=A0 =C2=A0 =C2=A0 =C2=A06.4.1.=C2=A0 ICMP Applicability =C2=A0. . . . . = . . . . . . . . . . . . =C2=A013

This analysis ought to guide protocol definition.
GIM>> draft-ietf-sfc-oam-framework has not been discusse= d by the SFC WG since even though much of material has been added to it.=C2= =A0

Question: Can this draft consider existing protocols and gap performed= before re-inventing? Specifically Normatively cite the SFC OAM Framework a= nd see where reuse is best?
GIM>> SFC OA= M Framework has Informational document track and I don't see a good rea= son of making it Normative reference for draft-ietf-sfc-multi-layer-oam.


3. Existing implementation of OAM functions.

Hows does this draft work with existing OAM functions with existing im= plementation, such as=C2=A0https://tools.ietf.org/html/draft-penno-= sfc-trace-03=C2=A0? The fact that the draft is expired does not mean the implementation is uncoded.
GIM>> How it can interwork with something that is not full= y documented, which state is unknown, uncertain? The goal of writing, devel= oping standards is to ensure interoperability among implementations. If som= eone is not committed to the development of their solution for the interope= rable multi-vendor environment, then what we can do in such case? You are t= he co-author of the draft and I encourage you to re-start the work, bring t= o WG for the discussion.


Many thanks,

=E2=80=94 Carlos Pignataro

On May 9, 2019, at 1:31 AM, Greg Mirsky <gregimirsky@gmail.com> wrote:

Dear All,
the update to the draft addresses the comment received from Joel at th= e meeting in Prague:
- Joel: if we get an echo request we can't parse, how do we know t= hat it is an echo request, and do we have the information to return it to t= he correct source?
- Greg: we will clarify this in the draft. It has to practical so the = sender can understand the situation.. We introduced two classes of TLVs: ma= ndatory and optional. Will add clearer text.

A new TLV, Errored TLVs, introduced to be optionally used to pass in a= n echo reply mandatory TLVs that were not understood because either the imp= lementation on the receiver does not support them or couldn't parse the= m correctly.

Also, please review the update to the interpretation of O-bit and the = value of the Next Protocol field to address Adrian's comments at the me= eting in Bangkok:
The rules of
=C2=A0 =C2=A0interpreting the values of O bit and the Next Protocol fi= eld are as
=C2=A0 =C2=A0follows:

=C2=A0 =C2=A0o=C2=A0 O bit set, and the Next Protocol value is not one= of identifying
=C2=A0 =C2=A0 =C2=A0 active or hybrid OAM protocol (per [RFC7799] defi= nitions), e.g.,
=C2=A0 =C2=A0 =C2=A0 defined in this specification Active SFC OAM - a = Fixed-Length
=C2=A0 =C2=A0 =C2=A0 Context Header or Variable-Length Context Header(= s) contain OAM
=C2=A0 =C2=A0 =C2=A0 command or data.=C2=A0 and the type of payload de= termined by the Next
=C2=A0 =C2=A0 =C2=A0 Protocol field;

=C2=A0 =C2=A0o=C2=A0 O bit set, and the Next Protocol value is one of = identifying
=C2=A0 =C2=A0 =C2=A0 active or hybrid OAM protocol - the payload that = immediately
=C2=A0 =C2=A0 =C2=A0 follows SFC NSH contains OAM command or data;

=C2=A0 =C2=A0o=C2=A0 O bit is clear - no OAM in a Fixed-Length Context= Header or
=C2=A0 =C2=A0 =C2=A0 Variable-Length Context Header(s) and the payload= determined by
=C2=A0 =C2=A0 =C2=A0 the value of the Next Protocol field;

=C2=A0 =C2=A0o=C2=A0 O bit is clear and the Next Protocol value is one= of identifying
=C2=A0 =C2=A0 =C2=A0 active or hybrid OAM protocol MUST be identified = and reported as
=C2=A0 =C2=A0 =C2=A0 the erroneous combination.=C2=A0 An implementatio= n MAY have control to
=C2=A0 =C2=A0 =C2=A0 enable processing of the OAM payload.

=C2=A0 =C2=A0From the above-listed rules follows the recommendation to= avoid
=C2=A0 =C2=A0combination of OAM in a Fixed-Length Context Header or Va= riable-
=C2=A0 =C2=A0Length Context Header(s) and in the payload immediately f= ollowing the
=C2=A0 =C2=A0SFC NSH because there is no unambiguous way to identify s= uch
=C2=A0 =C2=A0combination using the O bit and the Next Protocol field.<= /div>

Regards,
Greg

---------- Forwarded message --------= -
From: <internet-drafts@ietf.org>
Date: Wed, May 8, 2019 at 10:21 PM
Subject: New Version Notification for draft-ietf-sfc-multi-layer-oam-03.txt=
To: <sfc-chairs= @ietf.org>, Gregory Mirsky <gregimirsky@gmail.com>, Bhumip Khasnabish <= vumip1@gmail.com&= gt;, Wei Meng <meng.w= ei2@zte.com.cn>, Cui(Linda) Wang <lindawangjoy@gmail.com>



A new version of I-D, draft-ietf-sfc-multi-layer-oam-03.txt
has been successfully submitted by Greg Mirsky and posted to the
IETF repository.

Name:=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0draft-ietf-sfc-multi-layer-oa= m
Revision:=C2=A0 =C2=A0 =C2=A0 =C2=A003
Title:=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 Active OAM for Service Function Ch= ains in Networks
Document date:=C2=A0 2019-05-08
Group:=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 sfc
Pages:=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 18
URL:=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 https://www.ietf.org/internet-drafts/draft-ietf-sfc-multi-layer-oam-03.txt<= /a>
Status:=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0https://datatracker.ietf.org/doc/draft-ietf-sfc-multi-layer-oam/ Htmlized:=C2=A0 =C2=A0 =C2=A0 =C2=A0htt= ps://tools.ietf.org/html/draft-ietf-sfc-multi-layer-oam-03
Htmlized:=C2=A0 =C2=A0 =C2=A0 =C2=A0https://datatracker.ietf.org/doc/html/draft-ietf-sfc-multi-layer-oam
Diff:=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0https://www.ietf.org/rfcdiff?url2=3Ddraft-ietf-sfc-multi-lay= er-oam-03

Abstract:
=C2=A0 =C2=A0A set of requirements for active Operation, Administration and=
=C2=A0 =C2=A0Maintenance (OAM) of Service Function Chains (SFCs) in network= s is
=C2=A0 =C2=A0presented.=C2=A0 Based on these requirements an encapsulation = of active
=C2=A0 =C2=A0OAM message in SFC and a mechanism to detect and localize defe= cts
=C2=A0 =C2=A0described.=C2=A0 Also, this document updates RFC 8300 in the d= efinition of
=C2=A0 =C2=A0O (OAM) bit in the Network Service Header (NSH) and defines ho= w the
=C2=A0 =C2=A0active OAM message identified in SFC NSH.




Please note that it may take a couple of minutes from the time of submissio= n
until the htmlized version and diff are available at tools.ietf.org.

The IETF Secretariat

_______________________________________________
sfc mailing list
sfc@ietf.org
htt= ps://www.ietf.org/mailman/listinfo/sfc

--00000000000071458805892ef60b-- From nobody Mon May 20 09:37:22 2019 Return-Path: X-Original-To: sfc@ietf.org Delivered-To: sfc@ietfa.amsl.com Received: from ietfa.amsl.com (localhost [IPv6:::1]) by ietfa.amsl.com (Postfix) with ESMTP id E7BF11201D3; Mon, 20 May 2019 09:37:12 -0700 (PDT) MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit From: IETF Secretariat To: Cc: ipr-announce@ietf.org, sfc@ietf.org X-Test-IDTracker: no X-IETF-IDTracker: 6.96.0 Auto-Submitted: auto-generated Precedence: bulk Message-ID: <155837023293.12808.14919157702868378815@ietfa.amsl.com> Date: Mon, 20 May 2019 09:37:12 -0700 Archived-At: Subject: [sfc] IPR Disclosure Juniper' s Statement about IPR related to draft-ietf-sfc-ioam-nsh X-BeenThere: sfc@ietf.org X-Mailman-Version: 2.1.29 List-Id: Network Service Chaining List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 20 May 2019 16:37:13 -0000 Dear Frank Brockners, Shwetha Bhandari, Vengada Prasad Govindan, Carlos Pignataro, Hannes Gredler, John Leddy, Stephen Youell, Tal Mizrahi, David Mozes, Petr Lapukhov, Remy Chang: An IPR disclosure that pertains to your Internet-Draft entitled "Network Service Header (NSH) Encapsulation for In-situ OAM (IOAM) Data" (draft-ietf-sfc-ioam-nsh) was submitted to the IETF Secretariat on and has been posted on the "IETF Page of Intellectual Property Rights Disclosures" (https://datatracker.ietf.org/ipr/3527/). The title of the IPR disclosure is "Juniper's Statement about IPR related to draft-ietf-sfc-ioam-nsh" Thank you IETF Secretariat From nobody Mon May 20 10:59:10 2019 Return-Path: X-Original-To: sfc@ietfa.amsl.com Delivered-To: sfc@ietfa.amsl.com Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id 62BAB1201CD; Mon, 20 May 2019 10:59:07 -0700 (PDT) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -1.739 X-Spam-Level: X-Spam-Status: No, score=-1.739 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, FREEMAIL_FROM=0.001, HTML_MESSAGE=0.001, HTML_OBFUSCATE_05_10=0.26, RCVD_IN_DNSWL_NONE=-0.0001, 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 kKB06jlfB1bo; Mon, 20 May 2019 10:59:06 -0700 (PDT) Received: from mail-lf1-x12f.google.com (mail-lf1-x12f.google.com [IPv6:2a00:1450:4864:20::12f]) (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 AFF77120134; Mon, 20 May 2019 10:59:05 -0700 (PDT) Received: by mail-lf1-x12f.google.com with SMTP id y13so10976733lfh.9; Mon, 20 May 2019 10:59:05 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=mime-version:from:date:message-id:subject:to; bh=49wEiPkoTp4L4tLpwO52kr9EWYheVnkBI88w6sjVeC0=; b=JzuB/Sta4bKxgy9qIyRhMUNOPdSyine4KJwUcfLAV6s/0Yw9jf7CIg8vqTaes2qowz X1JZihoV5FFh4CfRyc0ayY88mZV6KX6DLkcF42IJErNbNn1x0ip3GuCwiM1+0THH483P nyT3eAW4pxMD5dbSIOqUt1Ot+160tfKAcM4ONfnuQ0mhJi5IVcfwe8ziQZHf1b6GHp3U Z9aqxbOTQjLEHc37LNy2owBOzgREz14U0CNCXQTZu/5xoiK+1rrGUh5JPRyMj2bJiX7k MisMkRvG0YIBDLYv470/CIpkZrH4cneAagW103n3idvCLSEQziCAwk0beOA5ptU63n0m sOZQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:from:date:message-id:subject:to; bh=49wEiPkoTp4L4tLpwO52kr9EWYheVnkBI88w6sjVeC0=; b=XwWhKrFwuYB9iryisnyj3YHIjwO88U59oeN6LzldOdk0ygFSLd4Xs1bUJDxa6iRa+g +3lq1dhhv5Tmo9U5h52urjMVMGErmNiZWyL0uV/yVzs9L2b/5M5/48DwKYbc1B286++n dllbsKARq1LtS/MAMpXejY41sdwckefqnNpP2fjEXKSTgCGLLzC5zUGEz9m2ZCQeWpL3 zSuSJ1A3YYnby/2TSqdbvi5ddnYI8PRvSBqo++kHmntfXtilDvQAjNEfVSU/MXRBjMjD GoosLh0SQ6VFEul1Di+RPXGIyvc2a1KDPp4xGiDqBC6a8PQULuFjJM+KSVda8ItH9ZcZ iFQA== X-Gm-Message-State: APjAAAV5xrGiYTPA1sAyN3HlS+JUjPea+o2KpS5cybAbf8NJ9ca7ak3h ZwHInhA4oIw9c+lxfweRh+Py95uM5NfNCVdsPCXds2u5 X-Google-Smtp-Source: APXvYqxfl8sQS4xPyfeL4uQk9NDTWyB0IjUQLZvniwrTwtgs8Ypjz+cVAahb+Cjehv15JRgfIQW+iVnH01Wdhy3iIwE= X-Received: by 2002:ac2:43af:: with SMTP id t15mr27554978lfl.45.1558375143385; Mon, 20 May 2019 10:59:03 -0700 (PDT) MIME-Version: 1.0 From: Greg Mirsky Date: Mon, 20 May 2019 10:58:52 -0700 Message-ID: To: sfc-chairs@ietf.org, Service Function Chaining IETF list Content-Type: multipart/alternative; boundary="000000000000d930bb0589557ce5" Archived-At: Subject: [sfc] Progressing draft-mirsky-sfc-pmamm X-BeenThere: sfc@ietf.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Network Service Chaining List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 20 May 2019 17:59:08 -0000 --000000000000d930bb0589557ce5 Content-Type: text/plain; charset="UTF-8" Dear Joel and Jim, authors of draft-mirsky-sfc-pmamm believe that the draft, that defines how the Alternate Marking (RFC 8321) technique can be used in SFC NSH, is stable, and ready for the working group adoption. Much appreciate your consideration to start the WG AP. Best regards, Greg --000000000000d930bb0589557ce5 Content-Type: text/html; charset="UTF-8" Content-Transfer-Encoding: quoted-printable
Dear Joel and Jim,
authors of=C2=A0draft-mirsky-sfc-pmamm believe that the draft, that define= s how the Alternate Marking (RFC 8321) technique can be used in SFC NSH, is= stable, and ready for the working group adoption. Much appreciate your con= sideration to start the WG AP.

Best= regards,
Greg
--000000000000d930bb0589557ce5-- From nobody Fri May 24 11:17:58 2019 Return-Path: X-Original-To: sfc@ietfa.amsl.com Delivered-To: sfc@ietfa.amsl.com Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id C1CE4120150 for ; Fri, 24 May 2019 11:17:56 -0700 (PDT) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -2.7 X-Spam-Level: X-Spam-Status: No, score=-2.7 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_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 (1024-bit key) header.d=joelhalpern.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 d0bM9iDe4_JZ for ; Fri, 24 May 2019 11:17:55 -0700 (PDT) Received: from mailb2.tigertech.net (mailb2.tigertech.net [208.80.4.154]) (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 EEC391201BB for ; Fri, 24 May 2019 11:17:50 -0700 (PDT) Received: from localhost (localhost [127.0.0.1]) by mailb2.tigertech.net (Postfix) with ESMTP id 459ZNZ5f9jzXxYG; Fri, 24 May 2019 11:17:50 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=joelhalpern.com; s=2.tigertech; t=1558721870; bh=x0lxDgtVxMzMN+9OmoiS9cqXGgXWPMzt9MmBziChx7E=; h=Subject:To:References:From:Date:In-Reply-To:From; b=CQFvYfuJ+ZWTJODVs/3bUhh1LWoxI+qO3GOWgiIpJ1WMveloEMHT0H2mqdaXEFGgv V2Z6rnpfL06hF30Mg72El2nMOAaoeSwryugDbO/BQPAcpZ29MgiqxxmLkKOZefvGmK afK7Qv5zFjOv726bkRGg2VrukhAyoNh2Kw800rxs= X-Virus-Scanned: Debian amavisd-new at b2.tigertech.net Received: from Joels-MacBook-Pro.local (209-255-163-147.ip.mcleodusa.net [209.255.163.147]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by mailb2.tigertech.net (Postfix) with ESMTPSA id 459ZNZ21HXzFq4H; Fri, 24 May 2019 11:17:50 -0700 (PDT) To: Greg Mirsky , Service Function Chaining IETF list References: From: "Joel M. Halpern" Message-ID: Date: Fri, 24 May 2019 14:17:49 -0400 User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.14; rv:60.0) Gecko/20100101 Thunderbird/60.7.0 MIME-Version: 1.0 In-Reply-To: Content-Type: text/plain; charset=utf-8; format=flowed Content-Language: en-US Content-Transfer-Encoding: 7bit Archived-At: Subject: [sfc] Adopting draft-mirsky-sfc-pmamm X-BeenThere: sfc@ietf.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Network Service Chaining List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 24 May 2019 18:17:57 -0000 This email starts the adoption call for draft-mirsky-sfc-pmamm (https://datatracker.ietf.org/doc/draft-mirsky-sfc-pmamm/). Please speak up if you support or oppose adopting this document as a working group document. Please provide reasons for that view. Silence will not be considered consent. The adoption call will end CoB 10 June 2019. Yours, Joel (and Jim On 5/20/19 1:58 PM, Greg Mirsky wrote: > Dear Joel and Jim, > authors ofdraft-mirsky-sfc-pmamm believe that the draft, that defines > how the Alternate Marking (RFC 8321) technique can be used in SFC NSH, > is stable, and ready for the working group adoption. Much appreciate > your consideration to start the WG AP. > > Best regards, > Greg From nobody Fri May 24 11:18:29 2019 Return-Path: X-Original-To: sfc@ietf.org Delivered-To: sfc@ietfa.amsl.com Received: from ietfa.amsl.com (localhost [IPv6:::1]) by ietfa.amsl.com (Postfix) with ESMTP id 65FB6120182; Fri, 24 May 2019 11:18:28 -0700 (PDT) MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit From: IETF Secretariat To: , , X-Test-IDTracker: no X-IETF-IDTracker: 6.97.0 Auto-Submitted: auto-generated Precedence: bulk Message-ID: <155872190841.12246.1081924350653587585.idtracker@ietfa.amsl.com> Date: Fri, 24 May 2019 11:18:28 -0700 Archived-At: Subject: [sfc] The SFC WG has placed draft-mirsky-sfc-pmamm in state "Call For Adoption By WG Issued" X-BeenThere: sfc@ietf.org X-Mailman-Version: 2.1.29 List-Id: Network Service Chaining List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 24 May 2019 18:18:29 -0000 The SFC WG has placed draft-mirsky-sfc-pmamm in state Call For Adoption By WG Issued (entered by Joel Halpern) The document is available at https://datatracker.ietf.org/doc/draft-mirsky-sfc-pmamm/ Comment: Adoption call issued through June 10, 2019 From nobody Fri May 24 19:06:27 2019 Return-Path: X-Original-To: sfc@ietfa.amsl.com Delivered-To: sfc@ietfa.amsl.com Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id 56CF9120323 for ; Fri, 24 May 2019 19:06:25 -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_MESSAGE=0.001, RCVD_IN_DNSWL_MED=-2.3, 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 w4LvCPhEuQDp for ; Fri, 24 May 2019 19:06:24 -0700 (PDT) Received: from mxhk.zte.com.cn (mxhk.zte.com.cn [63.217.80.70]) (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 DCAD1120319 for ; Fri, 24 May 2019 19:06:23 -0700 (PDT) Received: from mse-fl2.zte.com.cn (unknown [10.30.14.239]) by Forcepoint Email with ESMTPS id DBBF873E887EEDA3F906; Sat, 25 May 2019 10:06:21 +0800 (CST) Received: from njxapp05.zte.com.cn ([10.41.132.204]) by mse-fl2.zte.com.cn with SMTP id x4P26G6D008991; 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XUzq6HOi/NvTJY4kPiqoK2yym93HuOTOOOSNWEDymYQMU+CaYM7Am0UTw5V+ftlyVtJ0/akgshNk1+aMcswMcAjxDmQJJhxq1oOelNesuE0d/B+FzYzZifhtiK0xhiB1BZvS5J6V93jkP2xnfBBYL1dEhRaCF04XVMxD6TPyx3pkl4QzrhnzAxjtrPAnu+hQ/qxE8weYiw99y8E2Xzl6OT0Wbexoru9/8D0gn/Ck/9kbzx+9u+qXIpIbgBFiUbCkRCoXZ2+1CRF6kf+n5sLgGVPywNoMp4/VId3EPoY4HcUOcfg6cvzD6jcUupi+IW4bVIKWkPEZZ+0GGO99Bkzy2ewuV7lGmIbEYnpS/VPhsZ1ajIv0YGWlS/PgZMJal0ICWrssUiZHSj7eBrVjKFTlZ1JWcwL1UD4CP5l7DNVl/sU= Content-Type: multipart/alternative; boundary="_000_BYAPR13MB25978FD458B59EB22067685FD21E0BYAPR13MB2597namp_" MIME-Version: 1.0 X-OriginatorOrg: Futurewei.com X-MS-Exchange-CrossTenant-Network-Message-Id: a1ca7c8c-99e9-462a-8261-08d6e378e8e2 X-MS-Exchange-CrossTenant-originalarrivaltime: 28 May 2019 14:29:35.9944 (UTC) X-MS-Exchange-CrossTenant-fromentityheader: Hosted X-MS-Exchange-CrossTenant-id: 0fee8ff2-a3b2-4018-9c75-3a1d5591fedc X-MS-Exchange-CrossTenant-mailboxtype: HOSTED X-MS-Exchange-CrossTenant-userprincipalname: jguichar@futurewei.com X-MS-Exchange-Transport-CrossTenantHeadersStamped: BYAPR13MB2261 Archived-At: X-Mailman-Approved-At: Tue, 28 May 2019 07:37:31 -0700 Subject: [sfc] WG Last Call draft-ietf-sfc-oam-framework-06 X-BeenThere: sfc@ietf.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Network Service Chaining List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 28 May 2019 14:34:49 -0000 --_000_BYAPR13MB25978FD458B59EB22067685FD21E0BYAPR13MB2597namp_ Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Dear WG: This message starts a new two week WG Last Call on advancing https://datatr= acker.ietf.org/doc/draft-ietf-sfc-oam-framework/ for publication as an Informational RFC. Substantive comments and statements of support for publishing this document= should be directed to the mailing list. Editorial suggestions can be sent = to the authors. This last call will end on 11th June 2019. Thanks! Jim & Joel --_000_BYAPR13MB25978FD458B59EB22067685FD21E0BYAPR13MB2597namp_ Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable

De= ar WG:

&n= bsp;

Th= is message starts a new two week WG Last Call on advancing https:= //datatracker.ietf.org/doc/draft-ietf-sfc-oam-framework/<= font face=3D"Calibri"> for publication as an Informational RFC.

&n= bsp;

Su= bstantive comments and statements of support for publishing this document s= hould be directed to the mailing list. Editorial suggestions can be sent to= the authors.  This last call will end on 11th June 2019.

&n= bsp;

Th= anks!

&n= bsp;

Ji= m & Joel





--_000_BYAPR13MB25978FD458B59EB22067685FD21E0BYAPR13MB2597namp_-- From nobody Tue May 28 07:52:42 2019 Return-Path: X-Original-To: sfc@ietfa.amsl.com Delivered-To: sfc@ietfa.amsl.com Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id DE625120203 for ; Tue, 28 May 2019 07:52:40 -0700 (PDT) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -1.997 X-Spam-Level: X-Spam-Status: No, score=-1.997 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, FREEMAIL_FROM=0.001, HTML_MESSAGE=0.001, RCVD_IN_DNSWL_NONE=-0.0001, SPF_HELO_NONE=0.001, 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 qGTwr4OuQc4H for ; Tue, 28 May 2019 07:52:38 -0700 (PDT) Received: from mail-lj1-x229.google.com (mail-lj1-x229.google.com [IPv6:2a00:1450:4864:20::229]) (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 8B99B120073 for ; Tue, 28 May 2019 07:52:38 -0700 (PDT) Received: by mail-lj1-x229.google.com with SMTP id r76so7212474lja.12 for ; Tue, 28 May 2019 07:52:38 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=mime-version:references:in-reply-to:from:date:message-id:subject:to :cc; bh=hE6fsGd3Rx4ri40KNdumSWOlCoslNRS8bwhE1mfpbEY=; b=qEsC+7+Faw/Uxpsr7Xhug6hyTlkSpMy3cc8pXYnLCNq9It3KG9Nc6zMcYIczRxEsr/ BBRuLva9mlP8rH8QOas9sIELLQ43lojEEFlo03/27D7OH7XocLjXZJmkc7SBiBC6VWej MVKM7Ay8QeDMxXFHofIxIRM/ktxw8v0DmWMDm6KsH1lFvQ/tU53GptlC7yR5lT9OuCuY PgSeS5feFdpG01rVIOk0ld8gKGBAG1F2pUOhUpnuy/NbhB2TDUiCI03+LtjykUrguT13 Pyn0JPLLFTKvEzbADTUU/dhljxxbM7vDdFznPH17wjKaQCSSyQZq07Z3Euw6hAQ+fZwK mA8g== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:references:in-reply-to:from:date :message-id:subject:to:cc; bh=hE6fsGd3Rx4ri40KNdumSWOlCoslNRS8bwhE1mfpbEY=; b=YsYHT9ablvoFgBGTuBhw0oVhNg+qo+cFCXBpqTKmxf4FbQtf1WvBFkpLpnv7HSyxo1 lpHCchPySpyOYgyQPT8LL95LCLCW9aTRT0bjanyeX9OkinaoYYyrCOI+NoCstFMwt2hh HsdC4Ps7epGByiFloCnbgoFL7LceENBRRstdTTsH5nKcUg+QpnVKPxj6Ru4gXZa/Dz31 nUczRfGhrahH9wJU5DDgsZFsNsSR5Vv4wGHzDit6TgTRh5JpqePdPshBSj6ulRg6tWrw Y4HGQ9xERUfCCrDRb97fLqFAGtLaSYvd0kiEulrKYBEJCk+oIUT6u2B4oFiz3e4CICwj ngSw== X-Gm-Message-State: APjAAAXsD7qW4+Fh0lRSHmIQC6t4tHB2PTdboYcl/xsYLav4rXXHQ4vW MH/sCJrCVUbep3ptGYVgVvFuwOHiT6hTIAtW4ub3L4cn X-Google-Smtp-Source: APXvYqyJLQv+C77+a7auEe9gJUIDrokB9s9XrE2x0fGl9E0pzv7ZRSqUTSLlQpmB295m9S233vHgbh6zWg0RFe8491s= X-Received: by 2002:a2e:9193:: with SMTP id f19mr23811367ljg.111.1559055156665; Tue, 28 May 2019 07:52:36 -0700 (PDT) MIME-Version: 1.0 References: In-Reply-To: From: Greg Mirsky Date: Tue, 28 May 2019 07:52:25 -0700 Message-ID: To: "Joel M. Halpern" Cc: Service Function Chaining IETF list Content-Type: multipart/alternative; boundary="000000000000cc629b0589f3d04b" Archived-At: Subject: Re: [sfc] Adopting draft-mirsky-sfc-pmamm X-BeenThere: sfc@ietf.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Network Service Chaining List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 28 May 2019 14:52:41 -0000 --000000000000cc629b0589f3d04b Content-Type: text/plain; charset="UTF-8" Hi Joel, Jim, et al., I support the adoption of the draft-mirsky-sfc-pmamm as one of its co-authors. The document proposes the allocation of a new field in NSH in support of the Alternate Marking method [RFC8321]. Using the new field the AltMarking in SFC NSH allows efficient calculation of performance metrics including packet loss, latency, jitter and residence time for SFF and SF. Regards, Greg On Fri, May 24, 2019 at 11:17 AM Joel M. Halpern wrote: > This email starts the adoption call for draft-mirsky-sfc-pmamm > (https://datatracker.ietf.org/doc/draft-mirsky-sfc-pmamm/). > > Please speak up if you support or oppose adopting this document as a > working group document. Please provide reasons for that view. > Silence will not be considered consent. > > The adoption call will end CoB 10 June 2019. > > Yours, > Joel (and Jim > > On 5/20/19 1:58 PM, Greg Mirsky wrote: > > Dear Joel and Jim, > > authors ofdraft-mirsky-sfc-pmamm believe that the draft, that defines > > how the Alternate Marking (RFC 8321) technique can be used in SFC NSH, > > is stable, and ready for the working group adoption. Much appreciate > > your consideration to start the WG AP. > > > > Best regards, > > Greg > --000000000000cc629b0589f3d04b Content-Type: text/html; charset="UTF-8" Content-Transfer-Encoding: quoted-printable
Hi Joel, Jim, et al.,
I support the adoption of the dr= aft-mirsky-sfc-pmamm as one of its co-authors. The document proposes the al= location of a new field in NSH in support of the Alternate Marking method [= RFC8321]. Using the new field the AltMarking in SFC NSH allows efficient ca= lculation of performance metrics including packet loss, latency, jitter and= residence time for SFF and SF.

Regards,
Greg

On Fri, May 24, 2019 at 11:17 AM Joel M. Halpern <jmh@joelhalpern.com> wrote:
This email starts the adopti= on call for draft-mirsky-sfc-pmamm
(https://datatracker.ietf.org/doc/draft-mi= rsky-sfc-pmamm/).

Please speak up if you support or oppose adopting this document as a
working group document.=C2=A0 Please provide reasons for that view.
Silence will not be considered consent.

The adoption call will end CoB 10 June 2019.

Yours,
Joel (and Jim

On 5/20/19 1:58 PM, Greg Mirsky wrote:
> Dear Joel and Jim,
> authors ofdraft-mirsky-sfc-pmamm believe that the draft, that defines =
> how the Alternate Marking (RFC 8321) technique can be used in SFC NSH,=
> is stable, and ready for the working group adoption. Much appreciate <= br> > your consideration to start the WG AP.
>
> Best regards,
> Greg
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Pg0K --_000_984A0FE6D9BC4AADA1F4F4A2130FC9C6ciscocom_-- From nobody Wed May 29 03:09:22 2019 Return-Path: X-Original-To: sfc@ietfa.amsl.com Delivered-To: sfc@ietfa.amsl.com Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id BBA6612015C for ; Wed, 29 May 2019 03:09:20 -0700 (PDT) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -4.201 X-Spam-Level: X-Spam-Status: No, score=-4.201 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, 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 Du5oOXd10tvy for ; Wed, 29 May 2019 03:09:19 -0700 (PDT) Received: from huawei.com (lhrrgout.huawei.com [185.176.76.210]) (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 E53C012012C for ; Wed, 29 May 2019 03:09:18 -0700 (PDT) Received: from lhreml705-cah.china.huawei.com (unknown [172.18.7.108]) by Forcepoint Email with ESMTP id 4CECDD5FE1BB63B7A410; Wed, 29 May 2019 11:09:17 +0100 (IST) Received: from lhreml507-mbb.china.huawei.com ([10.201.109.48]) by lhreml705-cah.china.huawei.com ([10.201.108.46]) with mapi id 14.03.0415.000; Wed, 29 May 2019 11:09:13 +0100 From: Giuseppe Fioccola To: "Joel M. Halpern" , Greg Mirsky , Service Function Chaining IETF list CC: Cociglio Mauro Thread-Topic: [sfc] Adopting draft-mirsky-sfc-pmamm Thread-Index: AQHVEl0ZnM9TV0Qg+kqw/EML0fBO96aB5XIw Date: Wed, 29 May 2019 10:09:13 +0000 Message-ID: References: In-Reply-To: Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: x-originating-ip: [10.204.62.190] Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 X-CFilter-Loop: Reflected Archived-At: Subject: Re: [sfc] Adopting draft-mirsky-sfc-pmamm X-BeenThere: sfc@ietf.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Network Service Chaining List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 29 May 2019 10:09:21 -0000 Dear Joel, Jim and All, I support the adoption of the this draft as co-author. The application of t= he alternate marking method to SFC NSH was also mentioned in RFC 8321 and e= nables efficient OAM Performance Measurements as expected in the SFC OAM dr= aft. Best Regards, Giuseppe -----Original Message----- From: sfc [mailto:sfc-bounces@ietf.org] On Behalf Of Joel M. Halpern Sent: Friday, May 24, 2019 8:18 PM To: Greg Mirsky ; Service Function Chaining IETF lis= t Subject: [sfc] Adopting draft-mirsky-sfc-pmamm This email starts the adoption call for draft-mirsky-sfc-pmamm (https://dat= atracker.ietf.org/doc/draft-mirsky-sfc-pmamm/). Please speak up if you support or oppose adopting this document as a workin= g group document. Please provide reasons for that view. Silence will not be considered consent. The adoption call will end CoB 10 June 2019. Yours, Joel (and Jim On 5/20/19 1:58 PM, Greg Mirsky wrote: > Dear Joel and Jim, > authors ofdraft-mirsky-sfc-pmamm believe that the draft, that defines=20 > how the Alternate Marking (RFC 8321) technique can be used in SFC NSH,=20 > is stable, and ready for the working group adoption. Much appreciate=20 > your consideration to start the WG AP. >=20 > Best regards, > Greg _______________________________________________ sfc mailing list sfc@ietf.org https://www.ietf.org/mailman/listinfo/sfc From nobody Wed May 29 04:50:36 2019 Return-Path: X-Original-To: sfc@ietfa.amsl.com Delivered-To: sfc@ietfa.amsl.com Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id 343BF1200FF for ; Wed, 29 May 2019 04:50:35 -0700 (PDT) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -0.61 X-Spam-Level: X-Spam-Status: No, score=-0.61 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, HTML_MESSAGE=0.001, HTTPS_HTTP_MISMATCH=1.989, RCVD_IN_DNSWL_LOW=-0.7, 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 vdo2r9Elvx0y for ; Wed, 29 May 2019 04:50:33 -0700 (PDT) Received: from orange.com (mta240.mail.business.static.orange.com [80.12.66.40]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by ietfa.amsl.com (Postfix) with ESMTPS id 01CE61200C1 for ; Wed, 29 May 2019 04:50:33 -0700 (PDT) Received: from opfedar02.francetelecom.fr (unknown [xx.xx.xx.4]) by opfedar24.francetelecom.fr (ESMTP service) with ESMTP id 45DTYM2bJ3z5wYF; Wed, 29 May 2019 13:50:31 +0200 (CEST) Received: from Exchangemail-eme6.itn.ftgroup (unknown [xx.xx.13.20]) by opfedar02.francetelecom.fr (ESMTP service) with ESMTP id 45DTYM1f6QzCqkf; Wed, 29 May 2019 13:50:31 +0200 (CEST) Received: from OPEXCAUBMA2.corporate.adroot.infra.ftgroup ([fe80::e878:bd0:c89e:5b42]) by OPEXCAUBMA1.corporate.adroot.infra.ftgroup ([::1]) with mapi id 14.03.0439.000; Wed, 29 May 2019 13:50:31 +0200 From: To: James Guichard , "sfc@ietf.org" Thread-Topic: WG Last Call draft-ietf-sfc-oam-framework-06 Thread-Index: AQHVFWHG6SZyvEyD3EGGLNC6v36bBKaB/U5Q Date: Wed, 29 May 2019 11:50:30 +0000 Message-ID: <787AE7BB302AE849A7480A190F8B93302EA90A66@OPEXCAUBMA2.corporate.adroot.infra.ftgroup> References: In-Reply-To: Accept-Language: fr-FR, en-US Content-Language: fr-FR X-MS-Has-Attach: X-MS-TNEF-Correlator: x-originating-ip: [10.114.13.245] Content-Type: multipart/alternative; boundary="_000_787AE7BB302AE849A7480A190F8B93302EA90A66OPEXCAUBMA2corp_" MIME-Version: 1.0 Archived-At: Subject: Re: [sfc] WG Last Call draft-ietf-sfc-oam-framework-06 X-BeenThere: sfc@ietf.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Network Service Chaining List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 29 May 2019 11:50:35 -0000 --_000_787AE7BB302AE849A7480A190F8B93302EA90A66OPEXCAUBMA2corp_ Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Hi all, The draft is almost ready. FWIW, some inputs/comments/nits are available at: =B7 pdf: https://github.com/boucadair/IETF-Drafts-Reviews/blob/mast= er/draft-ietf-sfc-oam-framework-06-rev%20Med.pdf =B7 doc: https://github.com/boucadair/IETF-Drafts-Reviews/raw/maste= r/draft-ietf-sfc-oam-framework-06-rev%20Med.doc Nagendra, feel free to share on the list points that you think need further= discussion/clarification. Cheers, Med De : sfc [mailto:sfc-bounces@ietf.org] De la part de James Guichard Envoy=E9 : mardi 28 mai 2019 16:30 =C0 : sfc@ietf.org Objet : [sfc] WG Last Call draft-ietf-sfc-oam-framework-06 Dear WG: This message starts a new two week WG Last Call on advancing https://datatr= acker.ietf.org/doc/draft-ietf-sfc-oam-framework/ for publication as an Informational RFC. Substantive comments and statements of support for publishing this document= should be directed to the mailing list. Editorial suggestions can be sent = to the authors. This last call will end on 11th June 2019. Thanks! Jim & Joel --_000_787AE7BB302AE849A7480A190F8B93302EA90A66OPEXCAUBMA2corp_ Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable

Hi all,

 

The draft is almost ready.

 

FWIW, some inputs/comments/nits= are available at:

=B7    &n= bsp;    pdf: https://github.com/boucadair/IETF-Drafts-Reviews/blob/master/draft-ietf-sfc= -oam-framework-06-rev%20Med.pdf

=B7       = ;  doc: https://github.com/boucadair/IETF-Drafts-Reviews/raw/master/draft-ietf-sfc-= oam-framework-06-rev%20Med.doc

 

Nagendra, feel free to share on= the list points that you think need further discussion/clarification. &nbs= p;

 

Cheers,

Med

 

De : sfc = [mailto:sfc-bounces@ietf.org] De la part de James Guichard
Envoy=E9 : mardi 28 mai 2019 16:30
=C0 : sfc@ietf.org
Objet : [sfc] WG Last Call draft-ietf-sfc-oam-framework-06=

 

Dear WG:

 

This message starts a new two week WG Last Call on advancing https://datatracker.ietf.org/doc/draft-ietf-s= fc-oam-framework/ for publication as an Informational RFC.

 

Substantive comments and statements of support for publishing th= is document should be directed to the mailing list. Editorial suggestions c= an be sent to the authors.  This last call will end on 11th June 2019.

 

Thanks!

 

Jim & Joel

 

 

 

 

--_000_787AE7BB302AE849A7480A190F8B93302EA90A66OPEXCAUBMA2corp_-- From nobody Wed May 29 07:31:29 2019 Return-Path: X-Original-To: sfc@ietfa.amsl.com Delivered-To: sfc@ietfa.amsl.com Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id A069E12004C for ; Wed, 29 May 2019 07:31:26 -0700 (PDT) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -2.701 X-Spam-Level: X-Spam-Status: No, score=-2.701 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_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=telecomitalia.it 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 HssSISWLjZtG for ; Wed, 29 May 2019 07:31:22 -0700 (PDT) Received: from mx03.telecomitalia.it (mx03.telecomitalia.it [217.169.121.23]) (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 781DA12004E for ; Wed, 29 May 2019 07:31:22 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; d=telecomitalia.it; s=selector1; c=relaxed/relaxed; q=dns/txt; i=@telecomitalia.it; t=1559140280; x=2423053880; h=MIME-Version:From:Date:Message-ID:Subject:To; bh=UrIiTpsFzY10eUqSfw55/d0fYfR+d9nY7Iy9kxqTfqU=; b=G+00zW69QbVrLxjCEy/E3doJTuIJfDshgyfIMYU6VSpeP84p3d2x+5FITF31Vut5 ATFSNEh8eLHqS24qsWN/2Gu1dJqj/BKuQXZZNJPIMDcccMCxrOytuQq/DR4MOY7K mNufVAU0Ezt2NE7+yt1AbDz/j7hX7b99tvoiGmIuSw2YxZRnK6uvOtTDnOUkpcCQ OL3Rqs4P7sLGbhSvg2uOq/+h/DyiFqexPFSzU1OGt4OTOD4GQgOakiUKih+FiGyH /snnL4turGse92CpULr8D9w+yHjsZknJh8MuquYEbJbj14KTXS3SBc9fO3TxKrpw X/3MaZ5lKe0qON5ObOiBiA==; X-AuditID: d9a97917-32dff7000000b940-f7-5cee97b864cd Received: from TELMBXB06RM001.telecomitalia.local ( [10.14.252.35]) (using TLS with cipher ECDHE-RSA-AES256-SHA384 (256/256 bits)) (Client did not present a certificate) by mx03.telecomitalia.it () with SMTP id 35.94.47424.8B79EEC5; Wed, 29 May 2019 16:31:20 +0200 (CEST) From: Cociglio Mauro To: "Joel M. Halpern" , "Service Function Chaining IETF list" CC: Giuseppe Fioccola Thread-Topic: [sfc] Adopting draft-mirsky-sfc-pmamm Thread-Index: AQHVEl0ZnM9TV0Qg+kqw/EML0fBO96aB5XIwgABG0jA= Date: Wed, 29 May 2019 14:31:19 +0000 Message-ID: References: In-Reply-To: Accept-Language: it-IT, en-US Content-Language: it-IT X-MS-Has-Attach: X-MS-TNEF-Correlator: x-ms-exchange-transport-fromentityheader: Hosted x-originating-ip: [10.14.252.251] x-ti-disclaimer: Disclaimer1 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFtrBKsWRmVeSWpSXmKPExsXCxfdHWXfH9HcxBr2rFC3WzFnBZPHx1Bsm iycPtrI7MHu0HHnL6rFkyU8mj3NTvjMGMEc1MNok5uXllySWpCqkpBYn2yq5ZBYn5yRm5qYW KYSk5qQm5+cqKWSm2CoZKykU5CQmp+am5pXYKiUWFKTmpSjZcSlgABugssw8hdS85PyUzLx0 WyXPYH9dCwtTS11DJbvA0tTiknyF3NTi4sT09Mx8hdSE9YIZJx62sRZsF6hY9+AVawPjZd4u Rg4OCQETicZ+oy5GLg4hgalMEg+2H2PrYuTkYBMwkziz5RmYLSKQLLFi3W0WEJsZqH7jnB4W kF5hAUOJGR+LIEqMJbbOus8OYVtJzJy4E8xmEVCV+Hj4KDtIOa9AoMTmv0IgYSGBI4wSX+4z gdicAq4ShzZPALMZBWQlJuxexAixSVzixfQTYGMkBAQkluw5zwxhi0q8fPyPFcI2kNi6dB8L hK0ocbT1NBOELSOx8MhkVog5ehI3pk5hg7C1JZYtfA02h1dAUOLkzCcsExjFZiFZNwtJyywk LbOQtCxgZFnFKJpbYWCsVwKJvMySxJzMRL3Mkk2MwORxc2Wl+A7G9pXOhxgFOBiVeHhZO97F CLEmlhVX5h5ilOBgVhLhtZ3yJkaINyWxsiq1KD++qDQntfgQow8wwCYyS4km5wMTW15JvKGJ haWhsYWFkaGFmSkOYSVx3qxeoPEC6cDUlZ2aWpBaBDOOiYNTqoGxoL3640m+M67X3c/2d/yO f6bT9uSZaKFOlVIlz+1o6bkO305eE49QFdBLatZqC03adb37/cmXvauuaNnmuG/Y3Ldva4Dx u4S3ihe3z+/T8dzXn79DISn8wzuDCWL/DnfqP+550M75IE44T0+rg10zzjWXx9+3OSL+g+zU C4/S7iy/e2HRfVclluKMREMt5qLiRACITbMASwMAAA== Archived-At: Subject: [sfc] R: Adopting draft-mirsky-sfc-pmamm X-BeenThere: sfc@ietf.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Network Service Chaining List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 29 May 2019 14:31:27 -0000 Dear all. I agree with Giuseppe and I support the draft adoption. Regards. Mauro _____________________ Mauro Cociglio TIM - Telecom Italia Via G. Reiss Romoli, 274 10148 - Torino (Italy) Tel.: +390112285028 Mobile: +393357669751 _____________________ -----Messaggio originale----- Da: Giuseppe Fioccola [mailto:giuseppe.fioccola@huawei.com] Inviato: mercoled=EC 29 maggio 2019 12:09 A: Joel M. Halpern ; Greg Mirsky ; Service Function Chaining IETF list Cc: Cociglio Mauro Oggetto: [EXT] RE: [sfc] Adopting draft-mirsky-sfc-pmamm Dear Joel, Jim and All, I support the adoption of the this draft as co-author. The application of th= e alternate marking method to SFC NSH was also mentioned in RFC 8321 and ena= bles efficient OAM Performance Measurements as expected in the SFC OAM draft= . Best Regards, Giuseppe -----Original Message----- From: sfc [mailto:sfc-bounces@ietf.org] On Behalf Of Joel M. Halpern Sent: Friday, May 24, 2019 8:18 PM To: Greg Mirsky ; Service Function Chaining IETF list= Subject: [sfc] Adopting draft-mirsky-sfc-pmamm This email starts the adoption call for draft-mirsky-sfc-pmamm (https://data= tracker.ietf.org/doc/draft-mirsky-sfc-pmamm/). Please speak up if you support or oppose adopting this document as a working= group document. Please provide reasons for that view. Silence will not be considered consent. The adoption call will end CoB 10 June 2019. Yours, Joel (and Jim On 5/20/19 1:58 PM, Greg Mirsky wrote: > Dear Joel and Jim, > authors ofdraft-mirsky-sfc-pmamm believe that the draft, that defines > how the Alternate Marking (RFC 8321) technique can be used in SFC NSH, > is stable, and ready for the working group adoption. Much appreciate > your consideration to start the WG AP. > > Best regards, > Greg _______________________________________________ sfc mailing list sfc@ietf.org https://www.ietf.org/mailman/listinfo/sfc Questo messaggio e i suoi allegati sono indirizzati esclusivamente alle pers= one indicate. La diffusione, copia o qualsiasi altra azione derivante dalla= conoscenza di queste informazioni sono rigorosamente vietate. Qualora abbia= te ricevuto questo documento per errore siete cortesemente pregati di darne= immediata comunicazione al mittente e di provvedere alla sua distruzione, G= razie. This e-mail and any attachments is confidential and may contain privileged i= nformation intended for the addressee(s) only. Dissemination, copying, print= ing or use by anybody else is unauthorised. If you are not the intended reci= pient, please delete this message and any attachments and advise the sender= by return e-mail, Thanks. Rispetta l'ambiente. Non stampare questa mail se non =E8 necessario. From nobody Wed May 29 08:21:58 2019 Return-Path: X-Original-To: sfc@ietfa.amsl.com Delivered-To: sfc@ietfa.amsl.com Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id 415E212015E for ; Wed, 29 May 2019 08:21:55 -0700 (PDT) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -0.009 X-Spam-Level: X-Spam-Status: No, score=-0.009 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, FREEMAIL_FROM=0.001, HTML_MESSAGE=0.001, HTTPS_HTTP_MISMATCH=1.989, RCVD_IN_DNSWL_NONE=-0.0001, SPF_HELO_NONE=0.001, 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 z1tjHLylaahw for ; Wed, 29 May 2019 08:21:53 -0700 (PDT) Received: from mail-qt1-x829.google.com (mail-qt1-x829.google.com [IPv6:2607:f8b0:4864:20::829]) (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 24671120154 for ; Wed, 29 May 2019 08:21:53 -0700 (PDT) Received: by mail-qt1-x829.google.com with SMTP id z24so3016105qtj.10 for ; Wed, 29 May 2019 08:21:53 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=mime-version:references:in-reply-to:from:date:message-id:subject:to :cc; bh=VX7QsCNqjVZCYqgFKbVXynXCtOncAn0R0YO0lwk9KTw=; b=V4BNyS0GqdyUISxYlGpYKgMahGFnkSqhVmejiLRolUniZyTHwMenDIvqN/mhKwDJOb Mjn0p+ka0EWScmq9ZLCYiFRJMeqPzyBV8F84TNDXyi6nDyHjPZN6/btfBQDLd4z8Gg+N Io6lFNENIHM8l9BAElX964cXA0hUa8oxfxO7vG7NnL8s+/IaDdGsOnnHVZlqaKx4wcFP NvLFSndmVyedWqSWEm7v53AlzpxigpZKqyO4Bq0G9BCboh7UgQNerEh+7BdZ8KFSgab/ baYY3kfJyYR46PkvprxHA/oucIbpLggmucFkTcEJAoTtKJSbiO26DhZruDIqx541A7bj Lnxg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:references:in-reply-to:from:date :message-id:subject:to:cc; bh=VX7QsCNqjVZCYqgFKbVXynXCtOncAn0R0YO0lwk9KTw=; b=ljnMjEJh89If0IPYeIbXuDwluyA85ezeDxCAZx3SFMCrfiEccZkHUdZtyYzFdwbSjt KgflitDbBTwkB3l7ZlipCyXuqpq9+BMH/TxMASEM3lMmKq37xpYPTJE7B1g44W7fDYfH JYNBbYgJxyjoBIKCH9BOcPFxlVzKkCzHnclKxIET+Vh6VN/7lNGqfGZRnMQ9Cy+2pUG0 0KCz+0n+xseUgGv0sak6w0HGoK2Ghz8FUB6mNFy9PDrZjWW26qO8T1G6MZoppKgOGLDF KeyR83wRCGO9zOeTTMJE5GLiTWNZBjwce0SDVD1cDDM8efi2kTWlLupcAKtao1EMjmHE cZXQ== X-Gm-Message-State: APjAAAXOtF8klBo8MBl70ZyfGMjWcyzRsIs7/v/wxKaP/q3bHxdzzgiO LqnfBlBTlNJEd/nuU1upcxZS4Fp9/yMfTTnnutU= X-Google-Smtp-Source: APXvYqxXXz8hMCc/oe0V0mpvl3vKruPN1vUEf+hnN2iTH75uu/tMw8Tvjsmwum3LV9SbsVn0M/3ZBIEPZ6K1gXl75L4= X-Received: by 2002:ac8:7301:: with SMTP id x1mr17298038qto.209.1559143312204; Wed, 29 May 2019 08:21:52 -0700 (PDT) MIME-Version: 1.0 References: <984A0FE6-D9BC-4AAD-A1F4-F4A2130FC9C6@cisco.com> In-Reply-To: <984A0FE6-D9BC-4AAD-A1F4-F4A2130FC9C6@cisco.com> From: "Andrew G. Malis" Date: Wed, 29 May 2019 11:21:41 -0400 Message-ID: To: "Nagendra Kumar Nainar (naikumar)" Cc: James Guichard , "sfc@ietf.org" Content-Type: multipart/alternative; boundary="000000000000472827058a0857b0" Archived-At: Subject: Re: [sfc] WG Last Call draft-ietf-sfc-oam-framework-06 X-BeenThere: sfc@ietf.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Network Service Chaining List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 29 May 2019 15:21:55 -0000 --000000000000472827058a0857b0 Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable This has been in the works for 5 years with a number of revisions. I support WG LC. Cheers, Andy On Tue, May 28, 2019 at 10:53 AM Nagendra Kumar Nainar (naikumar) < naikumar@cisco.com> wrote: > Support as co-author. > > > > Regards, > > Nagendra > > > > *From: *sfc on behalf of James Guichard < > james.n.guichard@futurewei.com> > *Date: *Tuesday, May 28, 2019 at 10:37 AM > *To: *"sfc@ietf.org" > *Subject: *[sfc] WG Last Call draft-ietf-sfc-oam-framework-06 > > > > Dear WG: > > > > This message starts a new two week WG Last Call on advancing > https://datatracker.ietf.org/doc/draft-ietf-sfc-oam-framework/ > > for publication as an Informational RFC. > > > > Substantive comments and statements of support for publishing this > document should be directed to the mailing list. Editorial suggestions ca= n > be sent to the authors. This last call will end on 11th June 2019. > > > > Thanks! > > > > Jim & Joel > > > > > > > > > _______________________________________________ > sfc mailing list > sfc@ietf.org > https://www.ietf.org/mailman/listinfo/sfc > --000000000000472827058a0857b0 Content-Type: text/html; charset="UTF-8" Content-Transfer-Encoding: quoted-printable
This has been in the works for 5 years with a number of re= visions. I support WG LC.

Cheers,
Andy


On Tue, May 28, 2019 at 10:53 AM Nagendra Kumar Nainar (naikum= ar) <naikumar@cisco.com> wr= ote:

Support as co-author.

=C2=A0

Regards,

Nagendra

=C2=A0

From: = sfc <sfc-bounces@ietf.org> o= n behalf of James Guichard <james.n.guichard@futurewei.com>
Date: Tuesday, May 28, 2019 at 10:37 AM
To: "sfc@ietf= .org" <sfc@ie= tf.org>
Subject: [sfc] WG Last Call draft-ietf-sfc-oam-framework-06

=C2=A0

Dear WG:=

=C2=A0

This message starts a new two= week WG Last Call on advancing https://datatracker.ietf.org/doc/draft-= ietf-sfc-oam-framework/ for publication as an Informational RFC.

=C2=A0

Substantive comments and stat= ements of support for publishing this document should be directed to the ma= iling list. Editorial suggestions can be sent to the authors.=C2=A0 This la= st call will end on 11th June 2019.

=C2=A0

Thanks!<= /p>

=C2=A0

Jim & Joel<= /span>

= =C2=A0

= =C2=A0

=C2=A0

= =C2=A0

_______________________________________________
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--000000000000472827058a0857b0-- From nobody Wed May 29 23:02:21 2019 Return-Path: X-Original-To: sfc@ietfa.amsl.com Delivered-To: sfc@ietfa.amsl.com Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id 0A6721200C7 for ; Wed, 29 May 2019 23:02:19 -0700 (PDT) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -1.997 X-Spam-Level: X-Spam-Status: No, score=-1.997 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, FREEMAIL_FROM=0.001, HTML_MESSAGE=0.001, RCVD_IN_DNSWL_NONE=-0.0001, SPF_HELO_NONE=0.001, 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 3Bh_aj-dV4vL for ; Wed, 29 May 2019 23:02:16 -0700 (PDT) Received: from mail-qk1-x729.google.com (mail-qk1-x729.google.com [IPv6:2607:f8b0:4864:20::729]) (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 7927B12004F for ; Wed, 29 May 2019 23:02:16 -0700 (PDT) Received: by mail-qk1-x729.google.com with SMTP id a132so3068877qkb.13 for ; Wed, 29 May 2019 23:02:16 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=mime-version:references:in-reply-to:from:date:message-id:subject:to :cc; bh=z8COmATMs0Hq6hXsSV62xfnianqd4Pn72l1CDMRL10o=; b=kapcInvdNTIiDJqPoAz5nUThROClgpPIhN7d48TCiznzPAMS7h/yQdZzCeA4rUtJBQ ERzywp6Qm5Mr1HKUWNcwlQDAeVawZyb1Cm3h/geW/dgTfJpjKSVcne5a1in1HFDWo/X+ y19n6L6OvG6B948q3oxqQjV/EMb8qG6yXO8VGF9CtEAcb83B0ExKSh7RXhWg4y/Gwkr8 G+yfjSmp1AxVFQRXWEkvYlE+ZFL4oK/zaSbHJTvcWSJGlLaSzODe6Lf3zVuUHvNHP1Dx 1zoYPbRWtIh3zHT8YqQ0ClTq32v4ACKD/VVRtg1EQrGJl1BLo/7vTEoLVsUnP0nHBjf6 Nsaw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:references:in-reply-to:from:date :message-id:subject:to:cc; bh=z8COmATMs0Hq6hXsSV62xfnianqd4Pn72l1CDMRL10o=; b=HTc9cxFQSNOWXxiLw3BU0GmrL2vS4RUbNtCuM3KRiHVtR5Byfgsdv1nYFt4PMF03gf rlZWYKigcpuK6PJ0+ibI3ZgSigxyKo2ZwfZR+SnjX0jseH1XcoQDLlm7RQ+QPrDz72Xm tScz6pBDukUN0sh4VVN0Pgt8g/WrxTvdac4i7eTIrWH8aCKEwgrOebLkdvKfHM1aKB/v t3OHNLvs7aaIy5Y7gAbxJesg8eElQ3bgHNBQYzumeMB0Lrye6zRGwUtzKHfEJ/ZryqlP kdEt3E5N3p7HPzc0rngojeigp+BXFtFDCjcNEMCOAtmkuXchJ4GoLj692Y7Dlq0jF0lF s8kA== X-Gm-Message-State: APjAAAUHwBS7y2aIh+8P2PfeU1Yp9jdyMFqiG0NUIk2oHm6YqQsJHKJu j5Oj0tQSYj+1+yRb+6vYvlezQop6ilml4wontXc= X-Google-Smtp-Source: APXvYqw1qqHyjbH2eQWJlvxtw244q6/B/GsXHsb9xzCvi0Jg23N6pEtpuiFaF64RJnkYZQy/rpvr3B7eQmdQjGkW+0o= X-Received: by 2002:a05:620a:16c7:: with SMTP id a7mr1568343qkn.61.1559196135573; Wed, 29 May 2019 23:02:15 -0700 (PDT) MIME-Version: 1.0 References: In-Reply-To: From: Tal Mizrahi Date: Thu, 30 May 2019 09:02:04 +0300 Message-ID: To: "Joel M. Halpern" , Service Function Chaining IETF list Cc: Greg Mirsky Content-Type: multipart/alternative; boundary="000000000000cbcf09058a14a3fd" Archived-At: Subject: Re: [sfc] Adopting draft-mirsky-sfc-pmamm X-BeenThere: sfc@ietf.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Network Service Chaining List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 30 May 2019 06:02:19 -0000 --000000000000cbcf09058a14a3fd Content-Type: text/plain; charset="UTF-8" As a co-author, I support the adoption of this document. Cheers, Tal. On Fri, May 24, 2019 at 9:18 PM Joel M. Halpern wrote: > This email starts the adoption call for draft-mirsky-sfc-pmamm > (https://datatracker.ietf.org/doc/draft-mirsky-sfc-pmamm/). > > Please speak up if you support or oppose adopting this document as a > working group document. Please provide reasons for that view. > Silence will not be considered consent. > > The adoption call will end CoB 10 June 2019. > > Yours, > Joel (and Jim > > On 5/20/19 1:58 PM, Greg Mirsky wrote: > > Dear Joel and Jim, > > authors ofdraft-mirsky-sfc-pmamm believe that the draft, that defines > > how the Alternate Marking (RFC 8321) technique can be used in SFC NSH, > > is stable, and ready for the working group adoption. Much appreciate > > your consideration to start the WG AP. > > > > Best regards, > > Greg > > _______________________________________________ > sfc mailing list > sfc@ietf.org > https://www.ietf.org/mailman/listinfo/sfc > --000000000000cbcf09058a14a3fd Content-Type: text/html; charset="UTF-8" Content-Transfer-Encoding: quoted-printable
As a co-author, I support the adoption of= this document.

Cheers,
Tal.

On Fri, May = 24, 2019 at 9:18 PM Joel M. Halpern <jmh@joelhalpern.com> wrote:
This email starts the adoption call for draft-mirsky= -sfc-pmamm
(https://datatracker.ietf.org/doc/draft-mi= rsky-sfc-pmamm/).

Please speak up if you support or oppose adopting this document as a
working group document.=C2=A0 Please provide reasons for that view.
Silence will not be considered consent.

The adoption call will end CoB 10 June 2019.

Yours,
Joel (and Jim

On 5/20/19 1:58 PM, Greg Mirsky wrote:
> Dear Joel and Jim,
> authors ofdraft-mirsky-sfc-pmamm believe that the draft, that defines =
> how the Alternate Marking (RFC 8321) technique can be used in SFC NSH,=
> is stable, and ready for the working group adoption. Much appreciate <= br> > your consideration to start the WG AP.
>
> Best regards,
> Greg

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--000000000000cbcf09058a14a3fd-- From nobody Fri May 31 14:49:58 2019 Return-Path: X-Original-To: sfc@ietfa.amsl.com Delivered-To: sfc@ietfa.amsl.com Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id 63502120073 for ; Fri, 31 May 2019 14:49:56 -0700 (PDT) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -0.608 X-Spam-Level: X-Spam-Status: No, score=-0.608 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, HTML_MESSAGE=0.001, HTTPS_HTTP_MISMATCH=1.989, RCVD_IN_DNSWL_LOW=-0.7, SPF_HELO_NONE=0.001, SPF_NONE=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 EWRagU92YByr for ; Fri, 31 May 2019 14:49:53 -0700 (PDT) Received: from mta5.iomartmail.com (mta5.iomartmail.com [62.128.193.155]) (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 B7503120020 for ; Fri, 31 May 2019 14:49:51 -0700 (PDT) Received: from vs2.iomartmail.com (vs2.iomartmail.com [10.12.10.123]) by mta5.iomartmail.com (8.14.4/8.14.4) with ESMTP id x4VLnkYI002314; Fri, 31 May 2019 22:49:46 +0100 Received: from vs2.iomartmail.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 3651022044; Fri, 31 May 2019 22:49:46 +0100 (BST) Received: from asmtp3.iomartmail.com (unknown [10.12.10.224]) by vs2.iomartmail.com (Postfix) with ESMTPS id 2115C22042; Fri, 31 May 2019 22:49:46 +0100 (BST) Received: from LAPTOPK7AS653V ([87.112.172.175]) (authenticated bits=0) by asmtp3.iomartmail.com (8.14.4/8.14.4) with ESMTP id x4VLnhKm013395 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=NO); Fri, 31 May 2019 22:49:44 +0100 Reply-To: From: "Adrian Farrel" To: "'James Guichard'" , References: In-Reply-To: Date: Fri, 31 May 2019 22:49:43 +0100 Organization: Old Dog Consulting Message-ID: <062b01d517fa$c24cbed0$46e63c70$@olddog.co.uk> MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_062C_01D51803.241126D0" X-Mailer: Microsoft Outlook 16.0 Thread-Index: AQHHNlpyth1Tt5lM3f8NY2gEYgqxLqahiK3A Content-Language: en-gb X-Originating-IP: 87.112.172.175 X-Thinkmail-Auth: adrian@olddog.co.uk X-TM-AS-GCONF: 00 X-TM-AS-Product-Ver: IMSVA-9.0.0.1623-8.2.0.1013-24650.003 X-TM-AS-Result: No--12.733-10.0-31-10 X-imss-scan-details: No--12.733-10.0-31-10 X-TMASE-Version: IMSVA-9.0.0.1623-8.2.1013-24650.003 X-TMASE-Result: 10--12.733100-10.000000 X-TMASE-MatchedRID: m8E5UH2Q2aG+AWaOCXs78kNkUF3WMuv+cU9StUObqO3ujRbqge917uCA U8+z4gBpaXKzU8OFYuh1JcIKe4igQ1iv/vFtB9P7heOI9Wrg5NtO8qlnOXFSz6t8JTb7GATYr1u VaZUKda+m6tA6+Nf5hOOWnQzM/987lZCh4m94H0dM7gMW5+VNf2j110VUgQaLIgt1z4icQSuvIa W/gtYq38w7Chc5Gc+p9y0si6rTiyYQzB2LH5qdINB+FvCE3iAWdhnFihmbnwWnLZXtX62Wm4blM MKBhOiUOArqsGNfHKKhgfygFY12yXePWPGFF8/GNq1bCnLUo6e2+eU4nrUreuOGmthhJaWdpMQg 6AVyOoN7XEgV3uEXzXYMChw2OD8fejIyzPwjQVAnITjASO+40FwNehMcA+esZnol1sRLBs29K1j OJyKSa2K3yskfEbaLrX8Yl8y/h5E0ctDiif1H7I1pcgBT/7NsdPuue3cRiRgqaLKskc2Hck+86m aMM3aSRX34c0TChl9g9pztAeHjRiQUfW6C4J4IkG7KseF2pkEl/muXhDBEuC5Pvog0jk8MEBn6P JIWUUfwmYyDyIMChJ+9CAu07LMKIYOIWNY63iMcVG9OtZloO5VRzPxemJL0RiPTMMc/MmkG2HMv WEJenqjZ4vqVgtbFj0Zay9PpGRoGcDZwmRZXvqI0xRx+dH7GnVTWWiNp+v/kbMASTwgriPv7ndO c2uMkweO0CN4v0YryLyvrcoyz3pumkaYT3O8VdW9cfduY/2ko7b5tLxYZrd2GOg4qpcaxBQ0WPf n19vbl9fZvCJlkcDba6gSbbjl+nagtny7ZPcQfE8yM4pjsDzl/1fD/GopdyJ1gFgOMhOnQBQ8SB UzMX7FVO/b6tafeU6baA36eiaxsZUSYh+N/e/VM+KTAw9JMqLr2ziI56Os49GO+pUYonk22oeX7 BEuBAahFgTxM1O9jhmpn8iGfqIlSEfQYFga96OL3mvrRTSYMQSwKOL7B7Q== X-TMASE-SNAP-Result: 1.821001.0001-0-1-12:0,22:0,33:0,34:0-0 Archived-At: Subject: Re: [sfc] WG Last Call draft-ietf-sfc-oam-framework-06 X-BeenThere: sfc@ietf.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Network Service Chaining List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 31 May 2019 21:49:56 -0000 This is a multipart message in MIME format. ------=_NextPart_000_062C_01D51803.241126D0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Hi, I support publication, but there are a number of minor issues. Thanks, Adrian === The document has 6 front-page authors: I assume the document shepherd will handle this with the AD. --- The RFC Editor's preferred expansion of "OAM" is "Operations, Administration, and Maintenance" per RFC 6291. --- Requirements language should use the latest boilerplate that includes the reference to RFC 8174. --- Section 2 Multiple layers come into play for implementing the SFC. These include the service layer and the underlying layers (Network, Link etc) Missing two periods. s/etc)/etc.)./ OLD o The service layer in Figure 1, consists of SFC data plane elements that includes classifiers, Service Functions (SF), Service Function Forwarders (SFF), SFC Proxy. This layer uses the overlay network for ensuring connectivity between SFC data plane elements. NEW o The service layer in Figure 1 consists of SFC data plane elements that include classifiers, Service Functions (SF), Service Function Forwarders (SFF), and an SFC Proxy. This layer uses the overlay network for ensuring connectivity between SFC data plane elements. END Ditto s/Figure 1,/Figure 1/ in all of the subsequent bullets. --- Looking at Figure 1, I don't understand how the overlay network has more granularity than the underlay network. Surely the "legs" in the overlay shown between VM1-VM2 and VM2-VM3 cannot exist without "legs" in the underlay network. --- In each of the bullets in Section 3, you say "OAM solutions for this component" but Section 1.1 has already said "Actual solutions and mechanisms are outside the scope of this document." I think you could change 1.1 to read "Details of actual solutions and mechanisms are outside the scope of this document." But maybe it would be better if the bullets in Section 3 were "OAM functions applicable at this component". Or you could use "OAM requirements" as in Section 3.1.1 etc. --- Section 3 s/Below figure/Figure 2/ The arrow for "Service Function Chain OAM" is misaligned in Figure 2 --- Section 5 does not sit easily. It is good to have a list of exist OAM solutions that might be applicable. But by presenting it as a gap analysis there is an implication that these solutions are to be used for SFC OAM. That is in opposition to the statement in Section 1.1. Maybe the way to handle this is to rebrand Section 5 as an informational list of pre-existing OAM solutions that might be applicable to SFC OAM. And then to state that an analysis of their applicability is for future study. But then Section 6.4 is a worry because it does talk about the applicability of solutions. That would probably mean changing the tilt of the whole document to be "Service Function Chaining (SFC) Operation, Administration, and Maintenance (OAM) Framework and Applicability of Existing OAM Tools to SFC." --- Section 6.3 has The Next Protocol field in NSH header may be used to indicate what OAM function is it intended to or what toolset is used. s/is it/is/ But (!) I think this is solution text. It is completely true that this is one way to do it, it might even be the best way to do it, but I think it is out of scope. --- Sections 6.5, 6.6, and 6.7, need to be out-dented to 7., 8., and 9. --- The security considerations are a little weak. In particular, isn't there a confidentiality issue. That is, if the results of OAM can be inspected by a third party, they can deduce a lot about the network and the structure of the Service function Chain. Since the chains are themselves often used for security functions, this sort of information is sensitive. --- I think [RFC0792] and [RFC4443] could afford to be Informative References as they are used in the same way as BFD, etc. From: sfc On Behalf Of James Guichard Sent: 28 May 2019 15:30 To: sfc@ietf.org Subject: [sfc] WG Last Call draft-ietf-sfc-oam-framework-06 Dear WG: This message starts a new two week WG Last Call on advancing https://datatracker.ietf.org/doc/draft-ietf-sfc-oam-framework/ for publication as an Informational RFC. Substantive comments and statements of support for publishing this document should be directed to the mailing list. Editorial suggestions can be sent to the authors. This last call will end on 11th June 2019. Thanks! Jim & Joel ------=_NextPart_000_062C_01D51803.241126D0 Content-Type: text/html; charset="us-ascii" Content-Transfer-Encoding: quoted-printable

Hi,

 

I support = publication, but there are a number of minor = issues.

 

Thanks,

Adrian

 

=3D=3D=3D

 

The = document has 6 front-page authors: I assume the document shepherd =

will handle this with the = AD.

 

---

 

The RFC = Editor's preferred expansion of "OAM" is "Operations, =

Administration, and = Maintenance" per RFC 6291.

 

---

 

Requirements language should use = the latest boilerplate that includes

the = reference to RFC 8174.

 

---

 

Section = 2

 

   Multiple layers come = into play for implementing the SFC.  These

   include the service = layer and the underlying layers (Network, Link

   = etc)

Missing two = periods.

s/etc)/etc.)./

=

 

OLD

   o  The service = layer in Figure 1, consists of SFC data plane = elements

      that = includes classifiers, Service Functions (SF), = Service

      = Function Forwarders (SFF), SFC Proxy.  This layer uses the = overlay

    =   network for ensuring connectivity between SFC data plane = elements.

NEW

   o  The service = layer in Figure 1 consists of SFC data plane = elements

      that = include classifiers, Service Functions (SF), = Service

      = Function Forwarders (SFF), and an SFC Proxy.  This layer uses = the

      = overlay network for ensuring connectivity between SFC data plane =

      = elements.

END

 

Ditto = s/Figure 1,/Figure 1/ in all of the subsequent = bullets.

 

---

 

Looking at = Figure 1, I don't understand how the overlay network has = more

granularity than the underlay = network. Surely the "legs" in the overlay =

shown between VM1-VM2 and VM2-VM3 = cannot exist without "legs" in the

underlay = network.

 

---

 

In each of = the bullets in Section 3, you say "OAM solutions for = this

component" but Section 1.1 has = already said "Actual solutions and

mechanisms = are outside the scope of this document."

 

I think you = could change 1.1 to read "Details of actual solutions = and

mechanisms are outside the scope of = this document." But maybe it would

be better = if the bullets in Section 3 were "OAM functions applicable = at

this = component".

 

Or you = could use "OAM requirements" as in Section 3.1.1 = etc.

 

---

 

Section = 3

 

s/Below = figure/Figure 2/

 

The arrow = for "Service Function Chain OAM" is misaligned in Figure = 2

 

---

 

Section 5 = does not sit easily. It is good to have a list of exist = OAM

solutions that might be applicable. = But by presenting it as a gap

analysis = there is an implication that these solutions are to be = used

for SFC OAM. That is in opposition = to the statement in Section 1.1.

 

Maybe the = way to handle this is to rebrand Section 5 as an = informational

list of pre-existing OAM solutions = that might be applicable to SFC OAM.

And then to = state that an analysis of their applicability is for = future

study.

 

But then = Section 6.4 is a worry because it does talk about the =

applicability of solutions. That = would probably mean changing the tilt

of the = whole document to be "Service Function Chaining (SFC) Operation, =

Administration, and Maintenance = (OAM) Framework and Applicability of

Existing = OAM Tools to SFC."

 

---

 

Section 6.3 = has

 

   The Next Protocol = field in NSH header may be

   used to indicate what = OAM function is it intended to or what toolset

   is = used.

 

s/is = it/is/

 

But (!) I = think this is solution text. It is completely true that = this

is one way to do it, it might even = be the best way to do it, but I think

it is out = of scope.

 

---

 

Sections = 6.5, 6.6, and 6.7, need to be out-dented to 7., 8., and = 9.

 

---

 

The = security considerations are a little weak. In particular, isn't =

there a confidentiality issue. That = is, if the results of OAM can be

inspected = by a third party, they can deduce a lot about the = network

and the structure of the Service = function Chain. Since the chains are

themselves = often used for security functions, this sort of = information

is = sensitive.

 

---

 

I think = [RFC0792] and [RFC4443] could afford to be Informative =

References as they are used in the = same way as BFD, etc.

 

From: sfc = <sfc-bounces@ietf.org> On Behalf Of James = Guichard
Sent: 28 May 2019 15:30
To: = sfc@ietf.org
Subject: [sfc] WG Last Call = draft-ietf-sfc-oam-framework-06

 

Dear = WG:

 

This message starts a new two = week WG Last Call on advancing = https://datatracker.ietf.org/doc/draft-ietf-sfc-o= am-framework/ for publication as an Informational RFC. =

 

Substantive comments and = statements of support for publishing this document should be directed to = the mailing list. Editorial suggestions can be sent to the = authors.  This last call will end on 11th June = 2019.

 

Thanks!

 

Jim & = Joel

 

=

 

=

 

<= p class=3DMsoNormal> 

=
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b=Q2nrffDYNrufeCIPRqXPjmF8JbIzn5chmomt8S0uHI8IE7HpH+dQci/W5LRVJf3yUfwn8GjPjtswn33UIt4kZxRN1zdxLjMcSwLVDlcUv5pRUpgtyDJiyAU4qOibgiUQL0MHo7YljAIR5RhznaBHWRPo7PZqNsVsZMTtLcxSZO4= Received: from SN6PR11MB2829.namprd11.prod.outlook.com (52.135.93.20) by SN6PR11MB2944.namprd11.prod.outlook.com (52.135.124.79) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.1943.17; Sat, 1 Jun 2019 01:46:00 +0000 Received: from SN6PR11MB2829.namprd11.prod.outlook.com ([fe80::6d50:f5eb:c8b4:f10b]) by SN6PR11MB2829.namprd11.prod.outlook.com ([fe80::6d50:f5eb:c8b4:f10b%7]) with mapi id 15.20.1943.018; Sat, 1 Jun 2019 01:46:00 +0000 From: "Nagendra Kumar Nainar (naikumar)" To: "mohamed.boucadair@orange.com" , "James Guichard" , "sfc@ietf.org" Thread-Topic: [sfc] WG Last Call draft-ietf-sfc-oam-framework-06 Thread-Index: AQHVGBvDclfwmJbvSka+gK5L5bnVDw== Date: Sat, 1 Jun 2019 01:46:00 +0000 Message-ID: <48DE23B9-2696-44A4-898B-0C98901A0968@cisco.com> 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