Hi Aijun, When the WG discussion first indicated that this was a use case that needed to be addressed, I don’t dispute that you immediately added it to your draft. I have no doubt you would have purported support of any use case under discussion.
However, the first draft to address this use case with a short-lived notification was https://datatracker.ietf.org/doc/draft-ppsenak-lsr-igp-event-notification/ Based on WG feedback and collaboration of multiple vendors, this draft evolved to draft-ppsenak-lsr-igp-ureach-prefix-announce. While you’ve incorporated elements of the draft under discussion, your draft still includes pieces (sometimes conflicting) from previous use cases. There was an effort to merge the drafts but you declined unless your draft was used (without change) as the base. I’m not sure your motivation. Thanks, Acee > On Sep 1, 2023, at 20:25, Aijun Wang <[email protected]> wrote: > > Hi, Acee: > > Act as LSR chair, I think you should be more responsible to make any > unfounded assertions: > > We have described the previous statements in > https://datatracker.ietf.org/doc/html/draft-wang-lsr-prefix-unreachable-annoucement-06#section-7, > March 26, 2021, one year before the 00 version of draft-ppsenak(March > 25,2022) > > Then, which draft copy or incorporate which draft? > > Aijun Wang > China Telecom > >> On Sep 1, 2023, at 20:05, Acee Lindem <[email protected]> wrote: >> >> Hi Aijun, >> >>> On Aug 31, 2023, at 23:36, Aijun Wang <[email protected]> wrote: >>> >>> Hi，Acee: >>> >>> Please read >>> https://datatracker.ietf.org/doc/html/draft-wang-lsr-prefix-unreachable-annoucement-12#section-7 >>> before making misguide assertions: >>> >>> “The advertisement of PUAM message should only last one configurable period >>> to allow the services that run on the failure prefixes are switchovered.” >> >> >> I guess I haven’t kept up with all the elements of the draft under adoption >> that you continue to incorporate into your draft. This has been a continuing >> theme since initial discussed of the application signaling use case. While I >> have no interest in improving your draft, making the LSP/LSA short-lived >> conflicts with the other scenarios your draft purports to address. >> >> Acee >> >> >>> >>> Best Regards >>> >>> Aijun Wang >>> China Telecom >>> >>> 发件人: [email protected] <mailto:[email protected]> >>> [mailto:[email protected]] 代表 Acee Lindem >>> 发送时间: 2023年9月1日 0:50 >>> 收件人: Robert Raszuk <[email protected] <mailto:[email protected]>> >>> 抄送: Les Ginsberg (ginsberg) <[email protected] >>> <mailto:[email protected]>>; Huzhibo >>> <[email protected] >>> <mailto:[email protected]>>; Peter Psenak >>> <[email protected] <mailto:[email protected]>>; linchangwang >>> <[email protected] <mailto:[email protected]>>; lsr >>> <[email protected] <mailto:[email protected]>> >>> 主题: Re: [Lsr] Working Group Adoption of "IGP Unreachable Prefix >>> Announcement" - draft-ppsenak-lsr-igp-ureach-prefix-announce-04 >>> >>> >>> >>> >>>> On Aug 31, 2023, at 12:32, Robert Raszuk <[email protected] >>>> <mailto:[email protected]>> wrote: >>>> >>>> Hi Acee, >>>> >>>>> In any case, one will need to update the signaling routers and the >>>>> routers acting on the signal. >>>> >>>> I guess this is clear to all. >>>> >>>>> Additionally, your request for the adoption was that the draft have a >>>>> stronger statement about the mechanism being used for solely for >>>>> signaling for applications (e.g., BGP PIC). >>>> >>>> As to the applicability my comment was that either draft should state in >>>> strong normative language that this is applicable only to applications >>>> which data plane uses encapsulation to the next hop. >>>> >>>> Said this draft-wang introduces the additional signalling, sort of trying >>>> to assure that all nodes in an area understand the new messages - but I am >>>> not sure if even advertising PUAM capability means that it will be >>>> actually used for all destinations ? >>> >>> No - but while the draft under adoption (ppsenak-lsr…) is for an ephemeral >>> signal which the WG agreed was a valid use case, in the other draft, the >>> LSAs are long-lived and are also may be used for other purposed than >>> signaling (e.g., reread both sections 4 and 6 of draft-wang-lsr…). This >>> draft starting with a whole different use case but selectively added >>> mechanisms from ppsenak-lsr… >>> >>> I seem to recall you were a strong proponent of limiting the scope. >>> >>> >>> >>>> >>>>> By responding to this Email inline, some may believe you support the >>>>> assertion that we should start the adoption of both drafts. Please be >>>>> clarify this. >>>> >>>> Well the way I see this is that adoption call is a bit more formal >>>> opportunity for WG members to express their opinion on any document. But >>>> maybe LSR (for good reasons) have different internal rules to decide which >>>> document should be subject to WG adoption and does sort of pre-filtering. >>>> >>>> If adoption call proves document has negative comments or lacks cross >>>> vendor support it simply does not get adopted. >>>> >>>> Maybe I am just spoiled looking at how IDR WG process works :-) >>> >>> You replied to an Email inline suggesting adoption of both drafts. That is >>> what I think could have been misconstrued - especially by those who didn’t >>> follow the discussion until now who think you are agreeing with this >>> recommendation. >>> >>> >>> >>>> >>>>> As for your other comment that this could be accomplished with BGP or an >>>>> out-of-bound mechanism, that is true but that could be true of many >>>>> problem. However, the solution under adoption has running code and wide >>>>> vendor support. >>>> >>>> Right ... As I wrote to Peter - perhaps this is just a pragmatic approach >>>> and flooding is what link state uses so be it. >>>> >>>> As you know I did try in the past to propose BGP Aggregate withdraw but >>>> then feedback of the community was that PEs do not go down that often to >>>> justify the extension. >>> >>> Hmm… We seem to have broad support for the LSR application signaling use >>> case. >>> >>> Thanks, >>> Acee >>> >>> >>> >>>> >>>> Best, >>>> Robert >>>> >>> >>> >>> _______________________________________________ >>> Lsr mailing list >>> [email protected] <mailto:[email protected]> >>> https://www.ietf.org/mailman/listinfo/lsr >> >> _______________________________________________ >> Lsr mailing list >> [email protected] >> https://www.ietf.org/mailman/listinfo/lsr > _______________________________________________ > Lsr mailing list > [email protected] > https://www.ietf.org/mailman/listinfo/lsr
_______________________________________________ Lsr mailing list [email protected] https://www.ietf.org/mailman/listinfo/lsr
