Re: [Teas] I-D Action: draft-ietf-teas-yang-rsvp-16.txt refresh reduction
t petch <ietfa@btconnect.com> Mon, 09 August 2021 11:10 UTC
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From: t petch <ietfa@btconnect.com>
To: Tarek Saad <tsaad=40juniper.net@dmarc.ietf.org>, teas@ietf.org, teas-chairs@ietf.org
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Date: Mon, 09 Aug 2021 12:09:49 +0100
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Archived-At: <https://mailarchive.ietf.org/arch/msg/teas/3fBxiqZPCbVq9Cy8jhNL3RRfsnE>
Subject: Re: [Teas] I-D Action: draft-ietf-teas-yang-rsvp-16.txt refresh reduction
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Looking at the coverage of refresh reduction, I struggle. For the most part this I-D uses different terminology to the referenced RFC2961 and in places I cannot bridge the gap. The I-D talks of ACK messages, the RFC has MESSAGE_ID_ACK . Bundle is ok but reliable-ack and reliable-retransmit I am uncertain about; the RFC has refresh and srefresh. (I think that 'leaf summary-max-size' would be better named 'leaf srefresh-max-size' if that is what it is). The RFC has "When a node supports the periodic generation of standard refresh messages while Srefreshes are being used, the frequency of generation of standard refresh messages relative to the generation of summary refreshes SHOULD be configurable by the network administrator. " which appears not to be included; perhaps worth a note to say that it isn't. The RFC has "Suggested default values are an initial retransmission timeout (Rf) of 500ms, a power of 2 exponential back-off (Delta = 1) and a retry limit (Rl) of 3." which I do not see unless that is, in part, leaf reliable-retransmit-time { type uint32; units "milliseconds"; default "50"; Of course, networks were somewhat different when the RFC was published but since it is referenced, then I think that there should be a bridge linking this I-D to it, even if the terminology, concepts, values and such like are no longer used. leaf reliable-srefresh { type empty; why empty as opposed to boolean or presence container for other srefresh objects? Tom Petch > ----- Original Message ----- > From: "Tarek Saad" <tsaad=40juniper.net@dmarc.ietf.org> > To: <teas@ietf.org>; <teas-chairs@ietf.org> > Sent: Friday, February 19, 2021 8:11 PM > Subject: Re: [Teas] I-D Action: draft-ietf-teas-yang-rsvp-16.txt > > > > This revision includes editorial updates as well as the addition of > "Appendix A" for example instance data tree using this model. > > With these changes, the authors believe I-D is ready to progress to > WGLC. > > > > Tarek (for authors) > > > > ?On 2/19/21, 3:00 PM, "Teas on behalf of internet-drafts@ietf.org" > <teas-bounces@ietf.org on behalf of internet-drafts@ietf.org> wrote: > > > > > > A New Internet-Draft is available from the on-line Internet-Drafts > directories. > > This draft is a work item of the Traffic Engineering Architecture > and Signaling WG of the IETF. > > > > Title : A YANG Data Model for Resource > Reservation Protocol (RSVP) > > Authors : Vishnu Pavan Beeram > > Tarek Saad > > Rakesh Gandhi > > Xufeng Liu > > Igor Bryskin > > Filename : draft-ietf-teas-yang-rsvp-16.txt > > Pages : 57 > > Date : 2021-02-19 > > >