Floating IP issue regarding Latest upgrade to XENA

Hi Team,

We have the latest upgrade to XENA, and we are facing an issue with XENA release , where a few times, even Floating IP attached to the instance are not reachable.

I tried various ways to troubleshoot the issue, Regarding The IP is reachable from the router Namespace, The router IP is reachable, L3 agent is working Fine, as other Floating IP are reachable which are hosted through router on L3 agent, All ports are up, Interfaces are up, SNAT and DNAT are working Fine,

But as soon as i dissociate and associate the Floating IP , it started working Fine

Any Idea, why this Happening , and later on Fixed when Floating IP is dissociate and associate again, and later again starts happening

Regards Adivya Singh