Problem: When the BGP is flapping between the Branch and Controller/Hub-Controller, the Data path is impacted even though the graceful restart is enable in the Controller however the ideal behavior is data path should not be impacted until the GR timer is expired.

Affected Release: 21.1.2

Fixed in Release: 21.1.3

Solution: Enable the stale routes gr behavior knob from the controller cli. 

(config)% set routing-instances <Tenant-Org-Control-VR> protocols bgp <instance-id> stale-routes-gr-behavior true
(config)% set commit

#Sample Snippet