I had an issue over the weekend where OpenStack Installed on the XENA version suddenly stopped responding on its internal IP.

I checked the switch, Switch was never rebooted and did not see any errors, When I rebooted the Compute node , it fixed the issue.

Rabbit-mq was showing errors regards to Network Intermittent connectivity , But that is ok since the Internal IP was not reachable

But as a Whole i do not see any specific errors which cause OpenStack Internal Networking to stop

Regards

Adivya Singh