Re: [OSPF] Routing directorate review of draft-ietf-ospf-ospfv3-lsa-extend
"Acee Lindem (acee)" <acee@cisco.com> Fri, 05 May 2017 20:49 UTC
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From: "Acee Lindem (acee)" <acee@cisco.com>
To: "IJsbrand Wijnands (iwijnand)" <ice@cisco.com>, "draft-ietf-ospf-ospfv3-lsa-extend@ietf.org" <draft-ietf-ospf-ospfv3-lsa-extend@ietf.org>
CC: "ospf-chairs@ietf.org" <ospf-chairs@ietf.org>, OSPF WG List <ospf@ietf.org>, Routing Directorate <rtg-dir@ietf.org>
Thread-Topic: Routing directorate review of draft-ietf-ospf-ospfv3-lsa-extend
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Date: Fri, 05 May 2017 20:49:13 +0000
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Subject: Re: [OSPF] Routing directorate review of draft-ietf-ospf-ospfv3-lsa-extend
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+OSPF, Routing Directorate Thanks for the review Ice! On 5/5/17, 9:28 AM, "IJsbrand Wijnands (iwijnand)" <ice@cisco.com> wrote: >Hi All, > >I have been selected to do a routing directorate QA review of this draft. >https://www.ietf.org/id/draft-ietf-ospf-ospfv3-lsa-extend-14.txt > >Summary: > >This draft proposes a new addressing (TLV) format to more easily allow >additional information to be added as part of a particular LSA. Overall, >well written, easy to understand what the objective is for this draft. > >Comments and Questions: > >This looks like a pretty radical change to the OSPFv3 spec. I would >almost argue to call it OSPFv4.. Experience has proved that new versions are slow to deploy. OSPFv3 is well positioned to evolve to the next generation IGP. > Its very unfortunate there are no ‘reserved’ fields in RFC5340 that >would allow you keep the existing LSA’s format and have some way to >extend it differently. The TLV approach look good, I can’t see a better >way to achieve the goal. No - we struggled with backward compatibility and, due to complexity, went with with area by area migration as opposed to migration with concurrent usage of both regular and extended LSAs. Thanks, Acee > > >Minor Issues and Nits: >none. > >Thx, > >Ice. > > >
- Re: [OSPF] Routing directorate review of draft-ie… Acee Lindem (acee)