Comment 11 for bug 1668369

Reviewed: https://review.opencontrail.org/29150
Committed: http://github.org/Juniper/contrail-controller/commit/c0f71cbb8c7b1a900eaf35d220a4579321c6175a
Submitter: Zuul (<email address hidden>)
Branch: master

commit c0f71cbb8c7b1a900eaf35d220a4579321c6175a
Author: Nischal Sheth <email address hidden>
Date: Mon Feb 27 14:54:15 2017 -0800

Fix race condition in BgpPeer creation for non-master instances

If a new incarnation of a routing-instance and neighbors in the
routing-instance are configured before the previous incarnation of
the routing-instance has been destroyed, we end up trying to create
a neighbor that tries to take a LifetimeRef to a deleted instance.

Ignore neighbor create/update notifications if the routing-instance
is marked deleted. The neighbors under the routing-instance will get
created when the instance itself gets resurrected.

Change-Id: I93d74cf8f903fa8f6a1949c990a70481d654ecb3
Closes-Bug: 1668369