Hi all, Please find below a new draft that define a new Backward Recursive method to setup inter-domain LSP with PCInitiate message.
Regards Olivier & Julien --- A new version of I-D, draft-dugeon-brpc-stateful-00.tx has been successfully submitted by Olivier Dugeon and posted to the IETF repository. Name: draft-dugeon-brpc-stateful Revision: 00 Title: A Backward Recursive PCE-initiated inter-domain LSP Setup Document date: 2017-03-13 Group: Individual Submission Pages: 16 URL: https://www.ietf.org/internet-drafts/draft-dugeon-brpc-stateful-00.txt Status: https://datatracker.ietf.org/doc/draft-dugeon-brpc-stateful/ Htmlized: https://tools.ietf.org/html/draft-dugeon-brpc-stateful-00 Abstract: The Path Computation Element (PCE) working group (WG) has produced a set of RFCs to standardize the behavior of the Path Computation Element as a tool to help MPLS-TE, GMPLS LSP tunnels and Segment Routing paths placement. This also include the ability to compute inter-domain LSPs or Segment Routing path following a distributed or hierarchical approach. In complement to the original stateless mode, a stateful mode has been added. In particular, the new PCInitiate message allows a PCE to directly ask a PCC to setup an MPLS-TE, GMPLS LSP tunnels or a Segment Routing path. However, once computed, the inter-domain LSPs or Segment Routing path are hard to setup in the underlying network. Especially, in operational network, RSVP-TE signaling is not enable between BGP border routers. But, such RSVP- TE signaling is mandatory to setup contiguous LSP tunnels or to stitch or nest independent LSP tunnels to form the end-to-end inter- domain LSP tunnels. This draft propose to combine a Backward Recursive method with PCInitiate message to setup independent LSP tunnels per domain and stitch or nest the different LSP tunnels to setup end-to-end inter-domain LSP tunnels without the need of inter- domain signaling between BGP border routers. A new Stitching Label definition and new LSP-TYPE code points are proposed for that purpose. _________________________________________________________________________________________________________________________ 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. _______________________________________________ Pce mailing list [email protected] https://www.ietf.org/mailman/listinfo/pce
