Re: [mpls] Rtgdir last call review of draft-ietf-mpls-p2mp-bfd-06
Acee Lindem <acee.ietf@gmail.com> Sat, 24 February 2024 22:21 UTC
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From: Acee Lindem <acee.ietf@gmail.com>
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Date: Sat, 24 Feb 2024 17:20:58 -0500
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Cc: Joel Halpern <jmh@joelhalpern.com>, Routing Directorate <rtg-dir@ietf.org>, draft-ietf-mpls-p2mp-bfd.all@ietf.org, last-call <last-call@ietf.org>, mpls@ietf.org
To: Greg Mirsky <gregimirsky@gmail.com>
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Subject: Re: [mpls] Rtgdir last call review of draft-ietf-mpls-p2mp-bfd-06
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> On Feb 24, 2024, at 15:34, Greg Mirsky <gregimirsky@gmail.com> wrote: > > Hi Joel, > thank you for your support of this work and the suggestion. Would the following update of the last paragraph of Section 5 help: > OLD TEXT: > An ingress LSR that has received the BFD Control packet, as described > above, sends the unicast IP/UDP encapsulated BFD Control packet with > the Final (F) bit set to the egress LSR. > NEW TEXT: > As described above, an ingress LSR that has received the BFD Control > packet sends the unicast IP/UDP encapsulated BFD Control packet with > the Final (F) bit set to the egress LSR. In some scenarios, e.g., > when a p2mp LSP is broken close to its root, and the number of egress > LSRs is significantly large, the control plane of the ingress LSR > might be congested by the BFD Control packets transmitted by egress > LSRs and the process of generating unicast BFD Control packets, as > noted above. To mitigate that, a BFD implementation that supports > this specification is RECOMMENDED to use a rate limiter of received > BFD Control packets passed to processing in the control plane of the > ingress LSR. S/passed to processing in the control place of the ingress LSR./passed to the ingress LSR’s control plane for processing./ Acee > > Regards, > Greg > > On Thu, Feb 22, 2024 at 4:10 PM Joel Halpern via Datatracker <noreply@ietf.org <mailto:noreply@ietf.org>> wrote: >> Reviewer: Joel Halpern >> Review result: Ready >> >> Hello, >> >> I have been selected as the Routing Directorate reviewer for this draft. The >> Routing Directorate seeks to review all routing or routing-related drafts as >> they pass through IETF last call and IESG review, and sometimes on special >> request. The purpose of the review is to provide assistance to the Routing ADs. >> For more information about the Routing Directorate, please see >> https://wiki.ietf.org/en/group/rtg/RtgDir >> >> Although these comments are primarily for the use of the Routing ADs, it would >> be helpful if you could consider them along with any other IETF Last Call >> comments that you receive, and strive to resolve them through discussion or by >> updating the draft. >> >> Document: draft-name-version >> Reviewer: your-name >> Review Date: date >> IETF LC End Date: date-if-known >> Intended Status: copy-from-I-D >> >> Summary: This document is ready for publication as a Proposed Standard. >> I do have one question that I would appreciate being considered. >> >> Comments: >> The document is clear and readable, with careful references for those >> needing additional details. >> >> Major Issues: None >> >> Minor Issues: >> I note that the security considerations (section 6) does refer to >> congestion issues caused by excessive transmission of BFD requests. I >> wonder if section 5 ("Operation of Multipoint BFD with Active Tail over >> P2MP MPLS LSP") should include a discussion of the congestion implications >> of multiple tails sending notifications at the rate of 1 per second to the >> head end, particularly if the failure is near the head end. While I >> suspect that the 1 / second rate is low enough for this to be safe, >> discussion in the document would be helpful. >> >> > _______________________________________________ > mpls mailing list > mpls@ietf.org > https://www.ietf.org/mailman/listinfo/mpls
- [mpls] Rtgdir last call review of draft-ietf-mpls… Joel Halpern via Datatracker
- Re: [mpls] Rtgdir last call review of draft-ietf-… Greg Mirsky
- Re: [mpls] Rtgdir last call review of draft-ietf-… Acee Lindem
- Re: [mpls] Rtgdir last call review of draft-ietf-… Greg Mirsky
- Re: [mpls] Rtgdir last call review of draft-ietf-… Joel Halpern
- Re: [mpls] Rtgdir last call review of draft-ietf-… Greg Mirsky
- Re: [mpls] Rtgdir last call review of draft-ietf-… Joel Halpern
- Re: [mpls] Rtgdir last call review of draft-ietf-… Greg Mirsky
- Re: [mpls] Rtgdir last call review of draft-ietf-… Joel Halpern
- Re: [mpls] Rtgdir last call review of draft-ietf-… Greg Mirsky
- Re: [mpls] [RTG-DIR] Rtgdir last call review of d… loa
- Re: [mpls] Rtgdir last call review of draft-ietf-… Joel Halpern
- Re: [mpls] [RTG-DIR] Rtgdir last call review of d… Joel Halpern
- Re: [mpls] [Last-Call] [RTG-DIR] Rtgdir last call… loa
- Re: [mpls] Rtgdir last call review of draft-ietf-… bruno.decraene
- Re: [mpls] Rtgdir last call review of draft-ietf-… loa
- Re: [mpls] Rtgdir last call review of draft-ietf-… Greg Mirsky
- Re: [mpls] Rtgdir last call review of draft-ietf-… Greg Mirsky
- Re: [mpls] Rtgdir last call review of draft-ietf-… bruno.decraene
- Re: [mpls] Rtgdir last call review of draft-ietf-… loa
- Re: [mpls] Rtgdir last call review of draft-ietf-… bruno.decraene
- Re: [mpls] Rtgdir last call review of draft-ietf-… Greg Mirsky
- Re: [mpls] Rtgdir last call review of draft-ietf-… Loa Andersson
- Re: [mpls] Rtgdir last call review of draft-ietf-… Greg Mirsky
- Re: [mpls] Rtgdir last call review of draft-ietf-… bruno.decraene
- Re: [mpls] Rtgdir last call review of draft-ietf-… bruno.decraene
- Re: [mpls] Rtgdir last call review of draft-ietf-… bruno.decraene