Re: [mpls] [EXTERNAL] [Technical Errata Reported] RFC6512 (6754)

Loa Andersson <loa@pi.nu> Sat, 27 November 2021 09:48 UTC

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To: Alexander Vainshtein <Alexander.Vainshtein@rbbn.com>, RFC Errata System <rfc-editor@rfc-editor.org>, "ice@cisco.com" <ice@cisco.com>, "erosen@cisco.com" <erosen@cisco.com>, "mnapierala@att.com" <mnapierala@att.com>, "n.leymann@telekom.de" <n.leymann@telekom.de>, "aretana.ietf@gmail.com" <aretana.ietf@gmail.com>, "jgs@juniper.net" <jgs@juniper.net>, "martin.vigoureux@nokia.com" <martin.vigoureux@nokia.com>, "tsaad.net@gmail.com" <tsaad.net@gmail.com>
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From: Loa Andersson <loa@pi.nu>
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Subject: Re: [mpls] [EXTERNAL] [Technical Errata Reported] RFC6512 (6754)
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Working Group, authors,

I tend to agree with Sasha, but would like to hear from the authors 
before I call this.

/Loa

On 2021-11-25 18:03, Alexander Vainshtein wrote:
> Hi all,
> IMHO and FWIW this Erratum is obviously valid.
> However, I am not sure it is really a Technical one and not just an 
> Editorial  (report of a typo).
> 
> AFAIK  recursive opaque FEC in mLDP is used for setup of non-segmented 
> inter-domain/inter-AS P2MP LSPs for intra-AS mVPN I-PMSI routes for years.
> 
> My 2c.
> 
> 
> 
> Get Outlook for Android <https://aka.ms/AAb9ysg>
> 
> ------------------------------------------------------------------------
> *From:* mpls <mpls-bounces@ietf.org> on behalf of RFC Errata System 
> <rfc-editor@rfc-editor.org>
> *Sent:* Thursday, November 25, 2021, 13:38
> *To:* ice@cisco.com; erosen@cisco.com; mnapierala@att.com; 
> n.leymann@telekom.de; aretana.ietf@gmail.com; jgs@juniper.net; 
> martin.vigoureux@nokia.com; loa@pi.nu; n.leymann@telekom.de; 
> tsaad.net@gmail.com
> *Cc:* mpls@ietf.org; bert.van.ael@nomios.be; rfc-editor@rfc-editor.org
> *Subject:* [EXTERNAL] [mpls] [Technical Errata Reported] RFC6512 (6754)
> 
> The following errata report has been submitted for RFC6512,
> "Using Multipoint LDP When the Backbone Has No Route to the Root".
> 
> --------------------------------------
> You may review the report below and at:
> https://clicktime.symantec.com/36qYGHSu9z4s4gec2QGgaMp6H4?u=https%3A%2F%2Fwww.rfc-editor.org%2Ferrata%2Feid6754 
> <https://clicktime.symantec.com/36qYGHSu9z4s4gec2QGgaMp6H4?u=https%3A%2F%2Fwww.rfc-editor.org%2Ferrata%2Feid6754>
> 
> --------------------------------------
> Type: Technical
> Reported by: Bert Van Ael <bert.van.ael@nomios.be>
> 
> Section: 3.2.1
> 
> Original Text
> -------------
> PE1 also has this Inter-AS I-PMSI A-D route.
> 
> Corrected Text
> --------------
> PE1 also has this Intra-AS I-PMSI A-D route.
> 
> Notes
> -----
> "PE1 also has this route" refers to "Although ASBR1 does not have a 
> route to PE2, it does have a BGP Intra-AS Inclusive PMSI (I-PMSI) 
> auto-discovery (A-D) route". Intra-AS mechanisms are used for 
> auto-discovery/binding for Non-Segmented Inter-AS Tunnels.
> 
> Instructions:
> -------------
> This erratum is currently posted as "Reported". If necessary, please
> use "Reply All" to discuss whether it should be verified or
> rejected. When a decision is reached, the verifying party
> can log in to change the status and edit the report, if necessary.
> 
> --------------------------------------
> RFC6512 (draft-ietf-mpls-mldp-recurs-fec-04)
> --------------------------------------
> Title               : Using Multipoint LDP When the Backbone Has No 
> Route to the Root
> Publication Date    : February 2012
> Author(s)           : IJ. Wijnands, E. Rosen, M. Napierala, N. Leymann
> Category            : PROPOSED STANDARD
> Source              : Multiprotocol Label Switching
> Area                : Routing
> Stream              : IETF
> Verifying Party     : IESG
> 
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-- 
Loa Andersson                        email: loa@pi.nu
Senior MPLS Expert                          loa.pi.nu@gmail.com
Bronze Dragon Consulting             phone: +46 739 81 21 64