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Usage of The RSVP Association Object draft-ietf-ccamp-assoc-info-01.txt

Usage of The RSVP Association Object draft-ietf-ccamp-assoc-info-01.txt. Lou Berger <lberger@labn.net> Francois Le Faucheur <flefauch@cisco.com> Ashok Narayanan < ashokn@cisco.com>. Three Part Draft. Draft has three parts: Informational (Discussed at IETF 74-76)

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Usage of The RSVP Association Object draft-ietf-ccamp-assoc-info-01.txt

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  1. Usage of The RSVP Association Objectdraft-ietf-ccamp-assoc-info-01.txt Lou Berger <lberger@labn.net> Francois Le Faucheur <flefauch@cisco.com> Ashok Narayanan <ashokn@cisco.com> CCAMP - 80th IETF

  2. Three Part Draft Draft has three parts: • Informational (Discussed at IETF 74-76) • No new procedures or formats • Is essentially formal write of Adrian’s E-mail on the topic • Subject: Re: Clearing up your misunderstanding of the Association ID • From: "Adrian Farrel" <adrian at olddog.co.uk> • Date: Tue, 18 Nov 2008 22:34:14 -0000 • http://www.ietf.org/mail-archive/web/ccamp/current/msg00644.html • Covers ASSOCIATION Object as defined in RFC 4872 and RFC 4873 (GMPLS Only) • Reviews object definition • Analyzes conformance (RFC2119) language of each • Identifies valid Association ID use cases • Describes receiver processing to handle cases No Change CCAMP - 80th IETF

  3. Part 2: Non-Recovery Association • Non-Recovery Usage (Per IETF 76, 77) • Standards Track • But don’t modify usage for Recovery • Provides informational guidance for Recovery • Non-Recovery Usage • Reuse recovery rules • Match LSPs with identical ASSOCIATION objects • All fields: Type, ID, & Source • Multiple associations are possible all association objects need to examined. • Applies to LSP and non-LSP forms of RSVP • Allow for association based on Path or Resv messages • Upstream Initiated Association (Path state matching) • Downstream Initiated Association (Resv state matching) • No cross-direction association No Change CCAMP - 80th IETF

  4. Part 3: Extended Association • IPv4 and IPv6 Extended ASSOCIATION Objects • Revised per plan discussed at IETF 79 • Supports • Association identifiers > 16 bits • MPLS TP identifiers – ICC and Global ID • Format: 0 1 2 3 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ | Length | Class-Num(199)| C-Type (TBA) | +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ | Association Type | Association ID | +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ | IPv4 Association Source | +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ | Global Association Source | +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ : . : : Extended Association ID : : . : +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ Per RFC 4872 Global ID: <0> | <2|4-byte ASN> 4 bytes >= 0 bytes, 32-bit aligned [<ICC> <0x00>] [<data>] CCAMP - 80th IETF

  5. Question: One draft or two? • Current draft covers: • Informational usage for GMPLS recovery • Standards track extensions for non-GMPLS recovery usage and Extended association • Should Information and Standards track sections be separated? E.g.: • “Usage of The RSVP Association Object” • “RSVP Association Object Extensions ” CCAMP - 80th IETF

  6. Next steps • Updated based on today’s discussion • Solicit additional feedback on extended association CCAMP - 80th IETF

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