[OSPF] OSPF GR and BFD operability

Anil Raj <anilraj85@gmail.com> Tue, 25 August 2015 14:19 UTC

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Date: Tue, 25 Aug 2015 19:49:44 +0530
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From: Anil Raj <anilraj85@gmail.com>
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Subject: [OSPF] OSPF GR and BFD operability
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I need clarification on the behavior when BFD notifies remote inactivity
for a OSPF session, when OSPF neighbor is undergoing Graceful restart? OSPF
router in helper mode will ideally inactivate the restarting neighbor only
after grace period, and if BFD notifies neighbor down to OSPF, should the
adjacency be terminated? If not, will it cause a blackhole for the entire
grace period if the neighbor is actually down?

Appreciate if you can help here.