Hi Les, If I understand it correctly, the MSD concept was originated from (https://tools.ietf.org/html/draft-ietf-pce-segment-routing-11#page-7) as described below:
"The "Maximum SID Depth" (1 octet) field (MSD) specifies the maximum number of SIDs (MPLS label stack depth in the context of this document) that a PCC is capable of imposing on a packet." Before considering expanding the semantics of the MSD concept as defined in the above PCE-SR draft, how about first considering renaming the capability of imposing the maximum number of labels so as to eliminate possible confusions, e.g., Writable Label-stack Depth (WLD) as opposed to the Readable Label-stack Depth (RLD) as defined in (https://tools.ietf.org/html/draft-ietf-ospf-mpls-elc) and (https://tools.ietf.org/html/draft-ietf-isis-mpls-elc) ? Best regards, Xiaohu > -----邮件原件----- > 发件人: Isis-wg [mailto:[email protected]] 代表 Les Ginsberg (ginsberg) > 发送时间: 2017年12月21日 4:02 > 收件人: Ketan Talaulikar (ketant); Christian Hopps; [email protected] > 抄送: [email protected]; [email protected] > 主题: Re: [Isis-wg] WG Last Call for draft-ietf-isis-segment-routing-msd-07 > > Ketan - > > Thanx for the comments. > I think we do want to allow MSD support for values other than imposition > values. We will revise the text so we are not restricted to only imposition > cases. > > Les > > > > -----Original Message----- > > From: Ketan Talaulikar (ketant) > > Sent: Wednesday, December 20, 2017 1:51 AM > > To: Christian Hopps <[email protected]>; [email protected] > > Cc: [email protected]; [email protected] > > Subject: RE: [Isis-wg] WG Last Call for > > draft-ietf-isis-segment-routing-msd-07 > > > > Hello, > > > > I support this document and would like to ask the authors and WG to > > consider if we can expand the scope of this draft to not just > > "imposition" of the SID stack but also other similar limits related to other > actions (e.g. > > reading, processing, etc.). With Segment Routing, we are coming across > > various actions that nodes need to do with the SID stack for different > > purposes and IMHO it would be useful to extend the MSD ability to > > cover those as they arise. > > > > Thanks, > > Ketan > > > > -----Original Message----- > > From: Isis-wg [mailto:[email protected]] On Behalf Of Christian > > Hopps > > Sent: 20 December 2017 14:03 > > To: [email protected] > > Cc: [email protected]; [email protected] > > Subject: [Isis-wg] WG Last Call for > > draft-ietf-isis-segment-routing-msd-07 > > > > > > The authors have asked for and we are starting a WG Last Call on > > > > https://datatracker.ietf.org/doc/draft-ietf-isis-segment-routing-msd/ > > > > which will last an extended 4 weeks to allow for year-end PTO patterns. > > > > An IPR statement exists: > > > > > > https://datatracker.ietf.org/ipr/search/?submit=draft&id=draft-ietf-is > > is- > > segment-routing-msd > > > > Authors please reply to the list indicating whether you are aware of > > any > > *new* IPR. > > > > Thanks, > > Chris. > > > > _______________________________________________ > > Isis-wg mailing list > > [email protected] > > https://www.ietf.org/mailman/listinfo/isis-wg > > _______________________________________________ > Isis-wg mailing list > [email protected] > https://www.ietf.org/mailman/listinfo/isis-wg _______________________________________________ Isis-wg mailing list [email protected] https://www.ietf.org/mailman/listinfo/isis-wg
