Hi, Very nice !
But is there a reason why this approach would not work for vanilla LDP ? If ABRs can aggregate MPLS labels and generate aggregate SID they could as well generate aggregate FECs. And we do have for years the ability to use LPM for MPLS too. Of course perhaps folks are moving away from LDP these days and jump on to SR, but I am curious if there is a similar proposal in respect to MPLS with LDP. With the above you statement in Abstract and Info while atomically correct is opaque to the draft: "Contrary to this, MPLS forwarding works on exact match on MPLS labels." In all cases there would be an exact match in the data plane. But the control plane in both can use LPM too to select which label(s) to put on the stack. Best, R. On Mon, Mar 3, 2025 at 9:32 PM <bruno.decra...@orange.com> wrote: > [obviously speaking as individual contributor] > > Hi all, > > We have just published a short draft. > It introduces an Aggregation Segment for Segment Routing with MPLS data > plane. > This can be used to aggregate IP prefixes along with their SR Prefix > Segments. Aggregation Segments enable aggregation of IP prefixes to be > performed at border routers to improve scalability of MPLS networks. > > We would appreciate your review and comments. > > Thanks, > > --Shraddha, Ketan, Kamran, Bruno > > -----Original Message----- > From: internet-dra...@ietf.org <internet-dra...@ietf.org> > Sent: Monday, March 3, 2025 5:18 PM > To: DECRAENE Bruno INNOV/NET <bruno.decra...@orange.com>; Kamran Raza < > skr...@cisco.com>; Ketan Talaulikar <ketant.i...@gmail.com>; Shraddha > Hegde <shrad...@juniper.net>; Syed Raza <skr...@cisco.com> > Subject: New Version Notification for > draft-decraene-spring-sr-mpls-aggregation-segment-00.txt > > > A new version of Internet-Draft > draft-decraene-spring-sr-mpls-aggregation-segment-00.txt has been > successfully submitted by Bruno Decraene and posted to the IETF repository. > > Name: draft-decraene-spring-sr-mpls-aggregation-segment > Revision: 00 > Title: SR-MPLS Aggregation Segment > Date: 2025-03-03 > Group: Individual Submission > Pages: 9 > > > https://www.ietf.org/archive/id/draft-decraene-spring-sr-mpls-aggregation-segment-00.html > > Abstract: > > One of the key features of IP that has helped IP Routing to scale is > aggregation of IP prefixes. This is made possible with longest-match > lookup in IP forwarding. Contrary to this, MPLS forwarding works on > exact match on MPLS labels. This poses a challenge in aggregation of > IP prefixes when the forwarding is based on the MPLS labels > associated with those IP prefixes. > > This document introduces an Aggregation Segment for Segment Routing > with MPLS data plane which can be used to aggregate IP prefixes along > with their SR Prefix Segments. Aggregation Segments enable > aggregation of IP prefixes to be performed at border routers to > improve scalability of MPLS networks. > > > > The IETF Secretariat > > > > ____________________________________________________________________________________________________________ > Ce message et ses pieces jointes peuvent contenir des informations > confidentielles ou privilegiees et ne doivent donc > pas etre diffuses, exploites ou copies sans autorisation. Si vous avez > recu ce message par erreur, veuillez le signaler > a l'expediteur et le detruire ainsi que les pieces jointes. Les messages > electroniques etant susceptibles d'alteration, > Orange decline toute responsabilite si ce message a ete altere, deforme ou > falsifie. Merci. > > This message and its attachments may contain confidential or privileged > information that may be protected by law; > they should not be distributed, used or copied without authorisation. > If you have received this email in error, please notify the sender and > delete this message and its attachments. > As emails may be altered, Orange is not liable for messages that have been > modified, changed or falsified. > Thank you. > > _______________________________________________ > spring mailing list -- spring@ietf.org > To unsubscribe send an email to spring-le...@ietf.org >
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