Use Case Scenario : Contrail Service Chain

During compute node maintenance which included a reboot of compute node, multiple stale route appeared in SDN GW.

Service Chain is build using Contrail Health Check feature. Contrail HC is configured to detect the Active Firewall VNF.

After a compute node restart, it is observed that HC is inactive, however the VMI is not bought down as expected.

Restart of the vRouter agent fixes the issue.