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Extensions to GMPLS RSVP Graceful Restart draft-aruns-ccamp-rsvp-restart-ext-01.txt

Extensions to GMPLS RSVP Graceful Restart draft-aruns-ccamp-rsvp-restart-ext-01.txt. A. Satyanarayana (Movaz), R. Rahman (Cisco), L. Berger (Movaz), D. Papadimitriou (Alcatel), A. Zamfir (Cisco), J. Israr (Cisco). Changes from version -00.

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Extensions to GMPLS RSVP Graceful Restart draft-aruns-ccamp-rsvp-restart-ext-01.txt

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  1. Extensions to GMPLS RSVP Graceful Restartdraft-aruns-ccamp-rsvp-restart-ext-01.txt A. Satyanarayana (Movaz), R. Rahman (Cisco), L. Berger (Movaz), D. Papadimitriou (Alcatel), A. Zamfir (Cisco), J. Israr (Cisco)

  2. Changes from version -00 • Merge of draft-aruns-ccamp-rsvp-restart-ext-00 and draft-rahman-rsvp-restart-extensions-00 • Per consensus from last meeting • Scalability considerations • Summary Refresh-based mechanism for requesting RecoveryPath messages by restarting node

  3. RecoveryPath Summary Refresh • Capability advertisement in Hello messages • New Capability object • Downstream neighbor reports received Path state in SRefresh messages • Message IDs in Path messages for identification • Restarting node requests RecoveryPath messages using SRefresh ID NACK • Message ID List and Message ID NACK distinguished by bits in reserved fields of objects

  4. Full Path State Recovery <RecoveryPath Message> ::= <Path Message> • Downstream node sends: • On Message ID NACK • When Summary Refresh not used and neighbor restarts (as defined in draft-aruns-ccamp-rsvp-restart-ext-00)

  5. Open Issues • Need interim message type for Recovery Path message • Adjacent node restarts • Recovery Times being different when multiple nodes restart can cause timeout of state

  6. Next Steps • WG document?

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