Re: [Idr] I-D Action: draft-ietf-idr-rfc7752bis-06.txt
Gyan Mishra <hayabusagsm@gmail.com> Sat, 08 May 2021 06:35 UTC
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From: Gyan Mishra <hayabusagsm@gmail.com>
Date: Sat, 08 May 2021 02:34:47 -0400
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To: "Ketan Talaulikar (ketant)" <ketant@cisco.com>
Cc: "idr@ietf.org" <idr@ietf.org>
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Subject: Re: [Idr] I-D Action: draft-ietf-idr-rfc7752bis-06.txt
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Hi Ketan In-line Kind Regards Gyan On Sat, May 8, 2021 at 1:40 AM Ketan Talaulikar (ketant) <ketant@cisco.com> wrote: > Hi Gyan, > > > > Thanks for your review and feedback. > > > > Please check inline below. > > > > *From:* Gyan Mishra <hayabusagsm@gmail.com> > *Sent:* 07 May 2021 21:36 > *To:* Ketan Talaulikar (ketant) <ketant@cisco.com> > *Cc:* idr@ietf.org > *Subject:* Re: [Idr] I-D Action: draft-ietf-idr-rfc7752bis-06.txt > > > > Hi Ketan > > > > Thank you for updating the draft and I do like the more appropriate name > change from > > > > “* North-Bound Distribution of Link-State and Traffic Engineering (TE)* > > > > Information Using BGP” > > > > > > *To* > > > > Distribution of Link-State and Traffic Engineering Information Using BGP > > *[KT] Can you please clarify why this change would be required or even appropriate. The bis is to fix some issues and clarify some aspects of the original BGP-LS specification. It does not aim to change the purpose of the extensions.* > > Gyan> Agreed. In the bis update you had the title changed so I was > commenting on that but now I see you are not changing the title and I agree > the original title is more appropriate and correct. > > > Few comments. > > > > In RFC 7752 where does in mention BGP-LS AFI/SAFI? > > *[KT] > https://datatracker.ietf.org/doc/html/draft-ietf-idr-rfc7752bis-06#section-4.2 > <https://datatracker.ietf.org/doc/html/draft-ietf-idr-rfc7752bis-06#section-4.2>* > > > > I think it should be added if missing. > > > > Also since the same > > > > 71 > > BGP-LS > > [RFC7752 <https://www.iana.org/go/rfc7752>] > > 72 > > BGP-LS-VPN > > > > Also the SR BGP-LS extension uses the same AFI/SAFI above maybe mentioning > normative reference to the SR BGP-LS extension. > > *[KT] That would be backwards. RFC7752 (and this bis document) is the base > BGP-LS. The SR extensions for BGP-LS has normative reference to the base so > we cannot make a reverse reference. Please clarify if I am missing > something here.* > > Gyan> I see your point and agree > > I think we should add the AFI/SAFI reference to the draft below. > > > > https://tools.ietf.org/html/draft-ietf-idr-bgp-ls-segment-routing-ext-16 > > > > Also in the abstract mentions Traffic Engineering referring to RSVP TE and > then in the introduction mentions TEDs. As referring to TE could mean > RSVP-TE or SR maybe in the abstract state RSVP-TE as this specification is > strictly for RSVP-TE. > > *[KT] I am not sure if that is necessary. The specification is about > providing IGP topology database – it does not provide only the subset that > is used by RSVP-TE. Also, the specification does not go into the protocol > extensions for signaling of the TE paths.* > > * Gyan> Understood. As this is the base specification which includes the > BGP-LS extension for IGP topology and TEDS to rebuild TE network graph for > PCE SBI path instantiation, the BGP-LS AFI SAFI base protocol function > can also be used for any other extension as well such as SR, BIER, Enhanced > VPN and future extensions. To your point maybe adding verbiage that this > base specification can be used for any future use cases that don’t > necessarily have to be related to traffic engineering path steering use > cases and can be literally any use case. That does make BGP-LS a very > powerful tool for developers to design other possibilities for BGP-LS as > the base specification allows it.* > https://tools.ietf.org/html/draft-ietf-bier-bgp-ls-bier-ext-09 https://tools.ietf.org/html/draft-drake-bess-enhanced-vpn-06 *Thanks,* > > *Ketan * > > > > Kind Regards > > > > > > Gyan > > > > On Mon, May 3, 2021 at 1:38 AM Ketan Talaulikar (ketant) <ketant= > 40cisco.com@dmarc.ietf.org> wrote: > > Hi All, > > This is mostly a refresh that also includes fixes for editorial nits in > addition to the following changes related to the IANA considerations: > > 1) Includes updated text from draft-ietf-idr-bgp-ls-registry for the DE > Guidance > 2) Changes the policy from Specifications Required to RFC Required for > some of the flags registries that were missed by RFC7752 > 3) Removes the column for "ISIS TLV/Sub-TLV" from the IANA registry table > for BGP-LS TLVs/Sub-TLVs since only a subset of them have equivalent ISIS > encodings > > Thanks, > Ketan > > -----Original Message----- > From: Idr <idr-bounces@ietf.org> On Behalf Of internet-drafts@ietf.org > Sent: 03 May 2021 11:04 > To: i-d-announce@ietf.org > Cc: idr@ietf.org > Subject: [Idr] I-D Action: draft-ietf-idr-rfc7752bis-06.txt > > > A New Internet-Draft is available from the on-line Internet-Drafts > directories. > This draft is a work item of the Inter-Domain Routing WG of the IETF. > > Title : Distribution of Link-State and Traffic > Engineering Information Using BGP > Author : Ketan Talaulikar > Filename : draft-ietf-idr-rfc7752bis-06.txt > Pages : 63 > Date : 2021-05-02 > > Abstract: > In a number of environments, a component external to a network is > called upon to perform computations based on the network topology and > the current state of the connections within the network, including > Traffic Engineering (TE) information. This is information typically > distributed by IGP routing protocols within the network. > > This document describes a mechanism by which link-state and TE > information can be collected from networks and shared with external > components using the BGP routing protocol. This is achieved using a > new BGP Network Layer Reachability Information (NLRI) encoding > format. The mechanism is applicable to physical and virtual IGP > links. The mechanism described is subject to policy control. > > Applications of this technique include Application-Layer Traffic > Optimization (ALTO) servers and Path Computation Elements (PCEs). > > This document obsoletes RFC 7752 by completely replacing that > document. It makes some small changes and clarifications to the > previous specification. > > > The IETF datatracker status page for this draft is: > https://datatracker.ietf.org/doc/draft-ietf-idr-rfc7752bis/ > > There are also htmlized versions available at: > https://tools.ietf.org/html/draft-ietf-idr-rfc7752bis-06 > https://datatracker.ietf.org/doc/html/draft-ietf-idr-rfc7752bis-06 > > A diff from the previous version is available at: > https://www.ietf.org/rfcdiff?url2=draft-ietf-idr-rfc7752bis-06 > > > Please note that it may take a couple of minutes from the time of > submission until the htmlized version and diff are available at > tools.ietf.org. > > Internet-Drafts are also available by anonymous FTP at: > ftp://ftp.ietf.org/internet-drafts/ > > > _______________________________________________ > Idr mailing list > Idr@ietf.org > https://www.ietf.org/mailman/listinfo/idr > > _______________________________________________ > Idr mailing list > Idr@ietf.org > https://www.ietf.org/mailman/listinfo/idr > > -- > > <http://www.verizon.com/> > > *Gyan Mishra* > > *Network Solutions Architect * > > *Email gyan.s.mishra@verizon.com <gyan.s.mishra@verizon.com>* > > *M 301 502-1347* > > > -- <http://www.verizon.com/> *Gyan Mishra* *Network Solutions A**rchitect * *Email gyan.s.mishra@verizon.com <gyan.s.mishra@verizon.com>* *M 301 502-1347*
- [Idr] I-D Action: draft-ietf-idr-rfc7752bis-06.txt internet-drafts
- Re: [Idr] I-D Action: draft-ietf-idr-rfc7752bis-0… Ketan Talaulikar (ketant)
- Re: [Idr] I-D Action: draft-ietf-idr-rfc7752bis-0… Gyan Mishra
- Re: [Idr] I-D Action: draft-ietf-idr-rfc7752bis-0… Ketan Talaulikar (ketant)
- Re: [Idr] I-D Action: draft-ietf-idr-rfc7752bis-0… Gyan Mishra
- Re: [Idr] I-D Action: draft-ietf-idr-rfc7752bis-0… Ketan Talaulikar (ketant)
- Re: [Idr] I-D Action: draft-ietf-idr-rfc7752bis-0… Gyan Mishra