Agree, but i wonder whether we should go *all* the way. RSVP-TE has the association (and extended association) object for a large set of uses. It allows an many-to-many association of LSPs for reasons that go well beyond path protection. Can we consider replicating this function? All LSP my need path computation. The computation may need to consider existing LSPs for different reasons depending on the association (consider associated bidirectional LSPs where the two paths want to be a coherent as possible). Sometimes the LSPs will be computed as a batch, sometimes as a sequence. Sometimes the knowledge of the LSPs may already be in the PCE and just an I-D is needed. Sometimes the knowledge is in the PCC and the whole path has to be supplied. While I completely believe that protection is the main trigger for looking at this, perhaps we can make it generic so we don't ned to revisit it for each association type? Cheers, Adrian -- Support an author and your imagination. Tales from the Wood - Eighteen new fairy tales. http://www.feedaread.com/books/Tales-from-the-Wood-9781786100924.aspx http://www.amazon.co.uk/Tales-Wood-Adrian-Farrel/dp/1786100924 Or buy from me direct. From: Pce [mailto:[email protected]] On Behalf Of Zhangxian (Xian) Sent: 06 April 2016 18:56 To: [email protected]; [email protected] Subject: [Pce] one clarification comment on draft-ananthakrishnan-pce-stateful-path-protection-01 Hi, I think this is a useful draft to cover the missing piece of using stateful PCE for LSP recovery, taking advantage of the base PCEP ASSOCIATION draft. I have a minor comment on the Standby(S) bit introduced by the new TLV. Is it the same as the Secondary (S) bit defined in RFC4872 or not? Regards, Xian _____
发件人: Pce [[email protected]] 代表 Dhruv Dhody [[email protected]] 发送时间: 2016年4月7日 1:01 收件人: [email protected] 主题: [Pce] Etherpad Hi, Help out with notes at - http://etherpad.tools.ietf.org:9000/p/notes-ietf-95-pce?useMonospaceFont=true People raising question/presenters, please check. Thanks! Dhruv
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