Comment 8 for bug 1645508

Reviewed: https://review.opencontrail.org/26770
Committed: http://github.org/Juniper/contrail-controller/commit/cf34aae234135a408898b94e1ae56ff0b899c690
Submitter: Zuul (<email address hidden>)
Branch: R2.20

commit cf34aae234135a408898b94e1ae56ff0b899c690
Author: Naveen N <email address hidden>
Date: Wed Nov 30 14:51:21 2016 +0530

* AAP back off changes

1> If path toggles for 5 times within 4 seconds, the consider path
is unstable and start backoff, max backoff timeout is 32 seconds
2> If path doesnt toggle for 5 times within 4 seconds, consider path
to be stable and decrease backoff timeout from any value back to
4s
Closes-bug:#1645508,#1645974

Change-Id: I7e7fe20979dcf7be08c9bce9410f2b7931326dc6