Re: [sfc] draft-ietf-sfc-oam-packet-00 status & comments (was RE: WGLC for https://datatracker.ietf.org/doc/draft-ietf-sfc-ioam-nsh/)
"Joel M. Halpern" <jmh@joelhalpern.com> Thu, 14 April 2022 13:56 UTC
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To: "Frank Brockners (fbrockne)" <fbrockne@cisco.com>, "mohamed.boucadair@orange.com" <mohamed.boucadair@orange.com>, Greg Mirsky <gregimirsky@gmail.com>
Cc: "sfc@ietf.org" <sfc@ietf.org>, "Carlos Pignataro (cpignata)" <cpignata@cisco.com>
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From: "Joel M. Halpern" <jmh@joelhalpern.com>
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Subject: Re: [sfc] draft-ietf-sfc-oam-packet-00 status & comments (was RE: WGLC for https://datatracker.ietf.org/doc/draft-ietf-sfc-ioam-nsh/)
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Authors, WG participants? That edit looks acceptable to me? Frank, assuming we make that change, are you okay with this being sent to the IESG for publication as an RFC? Yours, Joel On 4/14/2022 9:47 AM, Frank Brockners (fbrockne) wrote: > Hi Joel, > > Looking at https://datatracker.ietf.org/wg/sfc/documents/ - it does not list draft-ietf-sfc-oam-packet-00 as in last call. The WGLC statement got me by surprise - I really missed that. > > Reading through draft-ietf-sfc-oam-packet-00, the clause that Med mentioned earlier could be misread, as in "NSH could interfere with the operation of other protocols". Or in other words, the O-bit can only be about SFC OAM data, which is what SFC control. Otherwise we could go wild and argue for adding additional bits like "D-Bit: Packet contains data from a data base" or "C-Bit: Packet contains data of the CEO of the company"... > > Suggested change: > > OLD: > Such a packet is any NSH-encapsulated packet that exclusively includes OAM data. > An OAM data can be included in the Fixed-Length Context Header, > optional Context Headers, and/or the inner packet. > > NEW: > Such a packet is any NSH-encapsulated packet that exclusively includes SFC OAM data. > SFC OAM data can be included in the Fixed-Length Context Header, optional Context Headers, and/or the inner packet. > > > Cheers, Frank > > > > >> -----Original Message----- >> From: Joel M. Halpern <jmh@joelhalpern.com> >> Sent: Thursday, 14 April 2022 14:39 >> To: Frank Brockners (fbrockne) <fbrockne@cisco.com>; >> mohamed.boucadair@orange.com; Greg Mirsky <gregimirsky@gmail.com> >> Cc: sfc@ietf.org >> Subject: Re: [sfc] WGLC for https://datatracker.ietf.org/doc/draft-ietf-sfc-ioam- >> nsh/ >> >> Frank, I am a little confused by your note. draft-ietf-sfc-oam-packet is in last >> call. That is not "early stages and still evolving". >> >> Do you have concerns with draft-ietf-sfc-oam-packet that you have not sent to >> the list? >> >> Given that we are finishing this draft up, and the draft is about the O-Bit, >> referring to it in draft-ietf-sfc-ioam-nsh seems the appropriate step. >> >> Yours, >> Joel >> >> On 4/14/2022 8:24 AM, Frank Brockners (fbrockne) wrote: >>> IMHO it would be better to refer to directly RFC8300 – since this is a >>> stable reference; and it allows us to finish up >>> draft-ietf-sfc-ioam-nsh and get the code points allocated. >>> I-D.ietf-sfc-oam-packet is early stages and still evolving. >>> >>> Cheers, Frank >>> >>> *From:*mohamed.boucadair@orange.com >> <mohamed.boucadair@orange.com> >>> *Sent:* Thursday, 14 April 2022 13:28 >>> *To:* Shwetha Bhandari <shwetha.bhandari@thoughtspot.com>; Greg Mirsky >>> <gregimirsky@gmail.com> >>> *Cc:* Frank Brockners (fbrockne) >>> <fbrockne=40cisco.com@dmarc.ietf.org>; >>> sfc-chairs@ietf.org; sfc@ietf.org; ippm@ietf.org; James Guichard >>> <james.n.guichard@futurewei.com>; Tal Mizrahi >>> <tal.mizrahi.phd@gmail.com>; draft-ietf-sfc-ioam-nsh@ietf.org >>> *Subject:* RE: [sfc] WGLC for >>> https://datatracker.ietf.org/doc/draft-ietf-sfc-ioam-nsh/ >>> >>> Hi Shwetha, >>> >>> I prefer we go for an explicit reference to I-D.ietf-sfc-oam-packet >>> rather than “any update to RFC8300”. This is consistent with the usage >>> in the other OAM draft. >>> >>> Thank you. >>> >>> Cheers, >>> >>> Med >>> >>> *De :*Shwetha Bhandari <shwetha.bhandari@thoughtspot.com >>> <mailto:shwetha.bhandari@thoughtspot.com>> >>> *Envoyé :* jeudi 14 avril 2022 12:06 >>> *À :* Greg Mirsky <gregimirsky@gmail.com >>> <mailto:gregimirsky@gmail.com>> *Cc :* BOUCADAIR Mohamed INNOV/NET >>> <mohamed.boucadair@orange.com >> <mailto:mohamed.boucadair@orange.com>>; >>> Frank Brockners (fbrockne) <fbrockne=40cisco.com@dmarc.ietf.org >>> <mailto:fbrockne=40cisco.com@dmarc.ietf.org>>; sfc-chairs@ietf.org >>> <mailto:sfc-chairs@ietf.org>; sfc@ietf.org <mailto:sfc@ietf.org>; >>> ippm@ietf.org <mailto:ippm@ietf.org>; James Guichard >>> <james.n.guichard@futurewei.com >>> <mailto:james.n.guichard@futurewei.com>>; Tal Mizrahi >>> <tal.mizrahi.phd@gmail.com <mailto:tal.mizrahi.phd@gmail.com>>; >>> draft-ietf-sfc-ioam-nsh@ietf.org >>> <mailto:draft-ietf-sfc-ioam-nsh@ietf.org> >>> *Objet :* Re: [sfc] WGLC for >>> https://datatracker.ietf.org/doc/draft-ietf-sfc-ioam-nsh/ >>> <https://datatracker.ietf.org/doc/draft-ietf-sfc-ioam-nsh/> >>> >>> Hi Med, Greg, >>> >>> How about this text : >>> >>> “The O-bit MUST be handled following the rules in and any updates to >>> [RFC8300] ." >>> >>> Given that I-D.ietf-sfc-oam-packet will update RF8300 and there could >>> be others in future? >>> >>> Thanks, >>> >>> Shwetha >>> >>> On Tue, Apr 12, 2022 at 9:24 PM Greg Mirsky <gregimirsky@gmail.com >>> <mailto:gregimirsky@gmail.com>> wrote: >>> >>> Hi Shwetha, >>> >>> I believe that the text you've quoted is helpful. I would suggest >>> changing references from [RFC8300] to [I-D.ietf-sfc-oam-packet] >>> throughout that paragraph. >>> >>> Regards, >>> >>> Greg >>> >>> On Tue, Apr 12, 2022 at 7:56 AM Shwetha Bhandari >>> <shwetha.bhandari@thoughtspot.com >>> <mailto:shwetha.bhandari@thoughtspot.com>> wrote: >>> >>> Med, >>> >>> Thanks for the details: this is exactly what we had before the >>> latest revision: >>> >>> *4.2 >>> >> <https://urldefense.com/v3/__https:/datatracker.ietf.org/doc/html/draft-ietf- >> sfc-ioam-nsh-06*section-4.2__;Iw!!MZ3Fw45to5uY!NBsrzhHEf0Y_- >> Sindy74K4QDA6EWJjx35STSH- >> UxEi3eYIX0GVli9Sn1azrOPJVcI2qUzWfezK_1D2RpyFB_FOIpJPfzrvI$>. >>> IOAM and the use of the NSH O-bit* >>> >>> [RFC8300] defines an "O bit" for OAM packets. Per [RFC8300 >>> >> <https://urldefense.com/v3/__https:/datatracker.ietf.org/doc/html/rfc8300__;! >> !MZ3Fw45to5uY!NBsrzhHEf0Y_-Sindy74K4QDA6EWJjx35STSH- >> UxEi3eYIX0GVli9Sn1azrOPJVcI2qUzWfezK_1D2RpyFB_FOIpEB5AbbE$>] >>> the O >>> >>> bit must be set for OAM packets and must not be set for >>> non-OAM >>> >>> packets. Packets with IOAM data included MUST follow this >>> >>> definition, i.e. the O bit MUST NOT be set for regular >>> customer >>> >>> traffic which also carries IOAM data and the O bit MUST be >>> set for >>> >>> OAM packets which carry only IOAM data without any regular >>> data >>> >>> payload. >>> >>> This was removed as per the discussion in this thread. Please >>> check >>> >> https://mailarchive.ietf.org/arch/msg/sfc/srMit5zE8UseNOhxknAw_dqvj6M/ >>> >>> <https://urldefense.com/v3/__https:/mailarchive.ietf.org/arch/msg/sfc/ >>> srMit5zE8UseNOhxknAw_dqvj6M/__;!!MZ3Fw45to5uY!NBsrzhHEf0Y_- >> Sindy74K4QD >>> A6EWJjx35STSH-UxEi3eYIX0GVli9Sn1azrOPJVcI2qUzWfezK_1D2RpyFB_FOIp- >> CeLfe >>> A$> >>> >>> It looks like we are going in a loop here. This definition of >>> SFC OAM packet to include the OAM data that comes in inner >>> packets via the next protocol header chain is introduced in >>> draft-ietf-sfc-oam-packet to update the RFC8300. >>> >>> Jim, What are you thoughts on this? Should we reintroduce the >>> above text ? >>> >>> Thanks, >>> Shwetha >>> >>> >> _________________________________________________________________ >> _____ >>> ___________________________________________________ >>> >>> Ce message et ses pieces jointes peuvent contenir des informations >>> confidentielles ou privilegiees et ne doivent donc >>> >>> pas etre diffuses, exploites ou copies sans autorisation. Si vous avez >>> recu ce message par erreur, veuillez le signaler >>> >>> a l'expediteur et le detruire ainsi que les pieces jointes. Les >>> messages electroniques etant susceptibles d'alteration, >>> >>> Orange decline toute responsabilite si ce message a ete altere, >>> deforme ou falsifie. Merci. >>> >>> This message and its attachments may contain confidential or >>> privileged information that may be protected by law; >>> >>> they should not be distributed, used or copied without authorisation. >>> >>> If you have received this email in error, please notify the sender and >>> delete this message and its attachments. >>> >>> As emails may be altered, Orange is not liable for messages that have >>> been modified, changed or falsified. >>> >>> Thank you. >>>
- [sfc] draft-ietf-sfc-oam-packet-00 status & comme… Frank Brockners (fbrockne)
- Re: [sfc] draft-ietf-sfc-oam-packet-00 status & c… Joel M. Halpern
- Re: [sfc] draft-ietf-sfc-oam-packet-00 status & c… Frank Brockners (fbrockne)
- Re: [sfc] draft-ietf-sfc-oam-packet-00 status & c… mohamed.boucadair
- Re: [sfc] draft-ietf-sfc-oam-packet-00 status & c… Greg Mirsky
- Re: [sfc] draft-ietf-sfc-oam-packet-00 status & c… Frank Brockners (fbrockne)
- Re: [sfc] draft-ietf-sfc-oam-packet-00 status & c… mohamed.boucadair