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Extended RSVP-TE for Point-to-Multipoint LSP Tunnels draft-yasukawa-mpls-rsvp-p2mp-04.txt

Extended RSVP-TE for Point-to-Multipoint LSP Tunnels draft-yasukawa-mpls-rsvp-p2mp-04.txt. Editors Seisho Yasukawa (yasukawa.seisho@lab.ntt.co.jp) Alan Kullberg (alan.kullberg@motorola.com) Lou Berger (lberger@movaz.com) Co-Authors Dean Cheng (dcheng@cisco.com)

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Extended RSVP-TE for Point-to-Multipoint LSP Tunnels draft-yasukawa-mpls-rsvp-p2mp-04.txt

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  1. Extended RSVP-TE for Point-to-Multipoint LSP Tunnelsdraft-yasukawa-mpls-rsvp-p2mp-04.txt Editors Seisho Yasukawa (yasukawa.seisho@lab.ntt.co.jp) Alan Kullberg (alan.kullberg@motorola.com) Lou Berger (lberger@movaz.com) Co-Authors Dean Cheng (dcheng@cisco.com) Markus Jork (mjork@avici.com) Hisashi Kojima (kojima.hisashi@lab.ntt.co.jp) Dimitri Papadimitriou (Dimitri.Papadimitriou@alcatel.be) Andrew G. Malis (Andy.Malis@tellabs.com) Koji Sugisono (sugisono.koji@lab.ntt.co.jp) Masanori Uga (uga.masanori@lab.ntt.co.jp) JP Vasseur (jpv@cisco.com) Igor Bryskin (ibryskin@movaz.com) Adrian Farrel (adrian@olddog.co.uk) 59th IETF Seoul March 2004

  2. Summary • Satisfy all aspects of P2MP Requirements draft • Particular attention to • All aspects of scalability • Backwards compatibility of • Egress nodes • Non-branch transit nodes • Flexible P2MP TE LSP operation • Non-disruptive and simultaneous prune and graft • Enable local tree optimization and modification • Easy implementation and migration • Re-usesconventional P2P mechanism to set up a branch LSP • Prototype experience is positive 59th IETF Seoul March 2004

  3. Major Changes • Significant changes since previous version • A P2MP TE LSP is established by setting up multiple standard P2P TE LSPs from a sender node and all the downstream branch nodes along the P2P TE LSP to one of the leaf nodes of the P2MP TE LSP. • A branched LSP is associated with original trunk LSP by newly defined Association object so that the P2MP LSP tunnel is established over the P2MP path. F G H A B C D E I J K L 59th IETF Seoul March 2004

  4. Major Changes (con’t) • Significant changes since previous version • Branches encoded in Secondary EROs (SEROs) • Each SERO runs from a branch to a leaf • Gives the ability to graft and prune easily • Makes efficient scaling a possibility • Re-uses a concept from End-to-End Recovery • Trees recorded in Secondary RROs (SRROs) • Use of Association Object to link together LSPs for the same tree • Makes P2MP make-before-break easier • Allows “parallel” LSPs in the same tree with resource sharing • Re-uses a concept from End-to-End Recovery • Extensive descriptive text to cover LSP setup, modification and teardown procedures • Added a third editor 59th IETF Seoul March 2004

  5. Remaining Issues • There are two solutions draft • WG doesn’t want two solutions • Both solutions address the same problem space • Missing pieces rapidly being supplied by both groups • The two solutions show some signs of converging • The two sets of authors should sit down together and try to reach a common solution ASAP • Minor edits and clarifications 59th IETF Seoul March 2004

  6. Next Actions • Charter milestone • Nov 04  Submit document(s) specifying protocol extensions, enhancements and mechanisms for setup of P2MP TE LSPs • Complete minor edit and clarification • Welcome feedback and discussion on the list • WG direction on merging P2MP solutions drafts? 59th IETF Seoul March 2004

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