Re: [bmwg] Benoit Claise's No Objection on draft-ietf-bmwg-bgp-basic-convergence-04: (with COMMENT)
"Bradner, Scott" <sob@harvard.edu> Wed, 03 December 2014 14:32 UTC
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From: "Bradner, Scott" <sob@harvard.edu>
To: Benoit Claise <bclaise@cisco.com>
Thread-Topic: [bmwg] Benoit Claise's No Objection on draft-ietf-bmwg-bgp-basic-convergence-04: (with COMMENT)
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Date: Wed, 03 Dec 2014 14:32:02 +0000
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Subject: Re: [bmwg] Benoit Claise's No Objection on draft-ietf-bmwg-bgp-basic-convergence-04: (with COMMENT)
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fyi - I met with Sue about my comments - we came to agreement on a set of changes but I have not seen a new version yet Scott > On Dec 3, 2014, at 9:24 AM, Benoit Claise <bclaise@cisco.com> wrote: > > Benoit Claise has entered the following ballot position for > draft-ietf-bmwg-bgp-basic-convergence-04: 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 http://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: > http://datatracker.ietf.org/doc/draft-ietf-bmwg-bgp-basic-convergence/ > > > > ---------------------------------------------------------------------- > COMMENT: > ---------------------------------------------------------------------- > > As notes by Scott Bradner in his OPS directorate review. > Some comments/questions on the contents of the draft: > > > 1.1 > "FIB (Data plane) convergence is defined as the completion of all FIB > changes so that all forwarded traffic now takes the new proposed > route. " > > should route be singular or plural - i.e. is the assumption that the > routing table converges to a single next hop? (at least for the test > traffic) > if so, does the draft specifically say that (or does rfc 4098 and I > missed it) > note: figure 1 shows multiple peering links - sec 4.1 seems to argue for > > multiple peers > > "Data plane convergence is different than control plane > convergence within a node." > > might want to say how they are different > > > since reporting requiremenst are covered in section 6 should > they also be mentioned here? (if so, how about in section 4.2) > > secton 4.4 & 4.8 > maybe replace TCP MD5 with TCP Authentication Option (2 places) > or at least mention it > > section 4.4 basic test settings - maybe say why these values were chosen > > > section 4.7 agree as to the importance fo rrepeating trials - is > there a recognized source that discusses "generally accepted testing > practices regarding repeatability ..."? > > section 5 > what about Graceful Restart (RFC 4724) - would that impact the > clean start desire? > > section 5.1.1 > "D. Start the traffic from the Emulator tx towards the DUT > targeted at a routes specified in route mixture (ex. routeA)" > > change "a routes" to "a route" or "the routes" > > E & F - as noted earlier in the document - these times should be very > close to the same - is it actually worth the additional complexity > to collect the time when the update is received? > also 5.1.2 H & I, etc > > section 5.1.2 mentions NTP but section 5.1.1 does not - is there a > reason? > > > section 5.2.1 - since the shutdown event is not timed - does this test > provide a useful measurement? (or should the time be recorded and > its just not mentioned?) > > section 5.3 - F - implies that the time is recorded but not actually say > say that it is > > general comment - review all steps of all tests to be sure that > NTP is called for when it is needed and that event times are > specifically called for when they are needed and use consistent > langage in each case > > the overall requiremenst - e.g. NTP could also just be noted > before the test descriptions and not inlcuded in each one if > it is needed in all of them - same with advice about > nukbers of routes (do tests with different numbers or routes > up to the full Internet table) > > section 6 - should this also include the number of AS Paths? > > > _______________________________________________ > bmwg mailing list > bmwg@ietf.org > https://www.ietf.org/mailman/listinfo/bmwg
- [bmwg] Benoit Claise's No Objection on draft-ietf… Benoit Claise
- Re: [bmwg] Benoit Claise's No Objection on draft-… Bradner, Scott
- Re: [bmwg] Benoit Claise's No Objection on draft-… Susan Hares