GMPLS-based%20Recovery%20draft-ietf-ccamp-gmpls-recovery-terminology-02.txt%20draft-ietf-ccamp-gmpls-recovery-analysis-02.txt%20draft-ietf-ccamp-gmpls-recovery-functional-01.txt%20draft-lang-ccamp-gmpls-recovery-e2e-signaling-02.txt

1
GMPLS-based Recoverydraft-ietf-ccamp-gmpls-recov
ery-terminology-02.txtdraft-ietf-ccamp-gmpls-reco
very-analysis-02.txtdraft-ietf-ccamp-gmpls-recove
ry-functional-01.txtdraft-lang-ccamp-gmpls-recove
ry-e2e-signaling-02.txt

• CCAMP WG Meeting
• IETF 58 - Minneapolis - Nov03

2
Thanks

• Deborah Brungard (dbrungard_at_att.com)
• Sudheer Dharanikota (sudheer_at_ieee.org)
• Jonathan Lang (jplang_at_ieee.org)
• Guangzhi Li (gli_at_att.com)
• Eric Mannie (eric_mannie_at_hotmail.com)
• Dimitri Papadimitriou (dimitri.papadimitriou_at_alcat
  el.be)
• Bala Rajagopalan (braja_at_tellium.com)
• Yakov Rekhter (yakov_at_juniper.net)
• and also ccampers (mailing list)

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Effort Positioning, Status and Timing
Terminology
draft-ietf-ccamp-gmpls-recovery-terminology-02.txt
March02
March02 (closed) PS for July03 (closed)
Analysis
draft-ietf-ccamp-gmpls-recovery-analysis-02.txt
April02
Jan03 (closed) Info for June03 (closed)
Functional Specification
draft-ietf-ccamp-gmpls-recovery-functional-01.txt
July02
Jan03 (closed) PS for April03 (closed)
Aug02
GMPLS RSVP-TE Specification
draft-lang-ccamp-gmpls-recovery-e2e-signalling-02
Mar03 (closed) PS for July03 (tbd)
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Mechanisms covered by the Signaling I-d

• Recovery Scope end-2-end
• Coverage (failure detection gt sd or sf)
• LSP Protection full LSP signalling
  (cross-connection) b/f failure occurrence
• (Pre-planned) Re-routing(w/ shared re-routing as
  particular case) pre-signalling b/f failure
  LSP activation after failure - allows for low
  priority
• LSP Dynamic Re-routing (a.k.a restoration) full
  LSP signalling after failure occurrence
• Notification message (and objects) lt from RFC
  3473
• Two objects described
• Protection Object (C-Type 2) lt extends RFC 3473
• Primary Path Route Object (New object) shared
  recovery

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Issues on e2e signaling I-d

• Editorial revision (thanks to the reviewers)
• P-bit processing at edge-points (backward
  compatibility)
• PPR object (PPRO) detailed processing is
  addressed in v02.txt
• Precision added since does not to cover MN
  end-to-end LSP protection w/ or w/o extra-traffic
  - note signaling mechanisms applicable to 1N
  protection w/ extra-traffic

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Extra-Traffic LSP issue

• Advertisement To make bandwidth pre-reserved for
  protecting (not activate) LSP(s) available for
  extra-traffic gt this bandwidth may be included
  in the Unreserved Bandwidth sub-TLV at priority
  lower than the protecting LSP Setup Priority
• Note Max LSP Bandwidth in Interface Switching
  Capability Descriptor sub-TLV should reflect that
  bandwidth pre-reserved for protecting LSP(s) is
  available for extra-traffic
• Signaling LSPs for extra traffic established
  using bandwidth pre-reserved for protecting
  LSP(s) by setting SESSION_ ATTRIBUTE
• Setup Priority X (Setup Priority of the
  protecting LSP)
• Holding Priority at least to X1
• Note if resources pre-reserved for the
  protecting LSP are used by lower priority LSPs,
  these LSPs MUST be preempted when the protecting
  LSP is activated

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What is the Next Step ?

• Commit the Signaling I-d as a WG document
• Perform thorough revision of the document(s)
• Dec03 submit documents to IESG

Terminology
draft-ietf-ccamp-gmpls-recovery-terminology-02.txt
Analysis
draft-ietf-ccamp-gmpls-recovery-analysis-02.txt
Functional Specification
draft-ietf-ccamp-gmpls-recovery-functional-01.txt
GMPLS RSVP-TE Specification
3q03 (first phase closed)