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Why do we need route exclusion?
Some signaled EROs are not strict explicit
Loose hops
Abstract nodes such as prefixes and AS numbers
Where is path computation performed?
Offline or at the ingress
Protection domains
Limited visibility of routing information
George’s overlay draft
Path computation request signaling (JP Vasseur)
Multiple areas (NOT a prerequisite for this draft)
MPLS-TE-MIB allows route exclusions
PPT Version