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Time to Start New Work Items

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Time to Start New Work Items. All WG drafts now on RFC Editor’s queue Those drafts have some known “holes” that need to be addressed There are a number of features not in the drafts that will be deployed over next several years Varying degrees of controversy, but

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Time to Start New Work Items

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  1. 2010-03-22 Time to Start New Work Items • All WG drafts now on RFC Editor’s queue • Those drafts have some known “holes”that need to be addressed • There are a number of features not in the drafts that will be deployed over next several years • Varying degrees of controversy, but • Always best to have public specs that have been reviewed by WG • Following slides propose specifics

  2. 2010-03-22 S-PMSI Join Extensions • Extensions needed for: • IPv6 (C-S,C-G) flows • Promised to IESG when base draft was approved • MPLS P-tunnels • Very minor and straightforward extension of existing message from base draft • Covered in draft-rosen-l3vpn-mvpn-spmsi-joins, suggest adopting as WG draft

  3. 2010-03-22 Additional Miscellaneous IPv6 Clarifications • PIM/IPv6 inside GRE/IPv4 P-tunnel • Covered in spmsi-join draft (perhaps not best place) • Other issues when C-PIM is v6, SP infra is v4: • Option to configure use of separate P-tunnels for v4 and v6 C-flows? • Encoding of PE addresses in BGP A-D routes (“originating PE” field) and RTs (GA field) • Propose to encode as v4 addresses rather than v4-mapped v6 addresses • New draft needed

  4. 2010-03-22 “Wild Card” S-PMSI Bindings • Very useful, multiple purposes: • Use S-PMSI as default PMSI • Assign customer shared tree to an S-PMSI • Perhaps other ways of grouping flows (e.g.,by C-S) and assigning to an S-PMSI • Covered in two very similar drafts: • draft-rosen-l3vpn-mvpn-wildcards • draft-rekhter-mvpn-wildcard-spmsi • Proposal: produce joint draft for WG adoption

  5. 2010-03-22 Extranets • Wide agreement on need • Two existing drafts • draft-rosen and draft-raggarwa, naturally • Drafts complement each other through focus on different control planes • Some differences in the extranet abstract model which need discussion • draft-rosen contains some additional stuff (hub&spoke, anycast sources) that the WG might want to consider together or separately • Recommend collaboration on merged draft

  6. 2010-03-22 Bidirectional P-Tunnels • Mentioned a number of times in both base drafts • Complete spec not provided in those drafts • Folks differ on the merits of bidirectional tree technology, but: • Technology is standard (e.g., RFC 5015, draft-ietf-mpls-ldp-p2mp) • Should be included in MVPN toolkit • Covered in draft-rosen-l3vpn-mvpn-bidir • Recommend adopting as WG doc • Collaborators welcomed

  7. 2010-03-22 PIM/MS-PMSI • Topic of draft-rosen-l3vpn-mvpn-mspmsi • Specifies use of PE-PE PIM without: • MI-PMSI • Any P-tunnels that aren’t needed to carry data • Can be used with unidirectional (including segmented inter-AS) or bidirectional P-tunnels • Allows use of PIM control plane while significantly reducing core state and Hello overhead

  8. 2010-03-22 MS-PMSI • Given that the standard provides two control plane options, advances and efficiencies in each should be: • supported, • publicly specified • reviewed by L3VPN WG • Recommend taking this work item and adopting the draft as WG draft.

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