Combined Recovery Draftrochccampfullreroutereversion01txt Draftrochccampcombinedrecoveryreqts01txt Coauthors E Roch L Ong A Malis March 26 2012 Reversion Reversion return to original path ID: 500695
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Slide1
Full Reroute ReversionCombined Recovery
Draft-roch-ccamp-full-reroute-reversion-01.txt
Draft-roch-ccamp-combined-recovery-reqts-01.txt
Co-authors: E. Roch, L. Ong, A. Malis
March 26, 2012Slide2
Reversion
Reversion – return to original path
4873 provides explicit text on how this is supported for 1+1 and 1:n protection and rerouting with extra traffic
These generally involve preplanning or
prereservation
of a disjoint backup path
Carriers are interested in reversion with full reroute as well, where
No preplanning or
prereservation
is done
The backup path may share resources with the original pathSlide3
Proposal
Review requirements for supporting this service
Subset of existing recovery services
See if any extensions are needed
Hopefully not, ideally supported with existing specs
Document in BCP if no extensions neededSlide4
Combined Recovery
Preservation of high availability at all times is
highly valued functionality
Combinations of restoration and protection may be involved in
Preserving 1+1
protection under
planned events such as
maintenance
Temporary reroute (with reversion) of affected path
Supporting
higher availability beyond
1+1
Restoration of one or both paths in case of failureSlide5
Proposed Actions
Review requirements
combinations
of existing recovery capabilities
Evaluate if any additional extensions are necessary
Document as needed