Re: [tsvwg] Suresh Krishnan's No Objection on draft-ietf-tsvwg-le-phb-09: (with COMMENT)
Suresh Krishnan <Suresh@kaloom.com> Fri, 22 February 2019 04:22 UTC
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From: Suresh Krishnan <Suresh@kaloom.com>
To: Brian E Carpenter <brian.e.carpenter@gmail.com>
CC: The IESG <iesg@ietf.org>, "tsvwg@ietf.org" <tsvwg@ietf.org>, "tsvwg-chairs@ietf.org" <tsvwg-chairs@ietf.org>, "draft-ietf-tsvwg-le-phb@ietf.org" <draft-ietf-tsvwg-le-phb@ietf.org>
Thread-Topic: [tsvwg] Suresh Krishnan's No Objection on draft-ietf-tsvwg-le-phb-09: (with COMMENT)
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Subject: Re: [tsvwg] Suresh Krishnan's No Objection on draft-ietf-tsvwg-le-phb-09: (with COMMENT)
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> On Feb 20, 2019, at 9:16 PM, Brian E Carpenter <brian.e.carpenter@gmail.com> wrote: > > On 2019-02-21 14:29, Suresh Krishnan wrote: >> Suresh Krishnan has entered the following ballot position for >> draft-ietf-tsvwg-le-phb-09: No Objection >> >> When responding, please keep the subject line intact and reply to all >> email addresses included in the To and CC lines. (Feel free to cut this >> introductory paragraph, however.) >> >> >> Please refer to https://www.ietf.org/iesg/statement/discuss-criteria.html >> for more information about IESG DISCUSS and COMMENT positions. >> >> >> The document, along with other ballot positions, can be found here: >> https://datatracker.ietf.org/doc/draft-ietf-tsvwg-le-phb/ >> >> >> >> ---------------------------------------------------------------------- >> COMMENT: >> ---------------------------------------------------------------------- >> >> I was not sure how this behavior in Section 8 is expected to be deployed and >> used. >> >> " A DS domain that still uses DSCP CS1 for marking LE traffic >> (including Low Priority-Data as defined in [RFC4594] or the old >> definition in [RFC3662]) SHOULD remark traffic to the LE DSCP >> '000001' at the egress to the next DS domain." >> >> Is the expectation that even on a domain that has not been updated to use the >> new DSCP there will be some node at the edge that will have been updated? If >> so, it might be good to explicitly note this. If not, I cannot see how a legacy >> node will follow this recommendation. > > If the routers involved genuinely follow the diffserv model, in which > any per-hop behavior can be mapped to any codepoint, all these things > will be configurable. So if the operator decides to continue using CS1 > internally but conform to the spec externally, they could reconfigure the > edges accordingly. In other words the legacy is in the configuration, > not the code. Thanks for the clarification Brian. That makes perfect sense. Regards Suresh
- [tsvwg] Suresh Krishnan's No Objection on draft-i… Suresh Krishnan
- Re: [tsvwg] Suresh Krishnan's No Objection on dra… Brian E Carpenter
- Re: [tsvwg] Suresh Krishnan's No Objection on dra… Suresh Krishnan