Contiv-vswitch pod restarts when new node joins the cluster

Hi Team
I am facing one issue in contiv vpp cni

  1. Create k8s cluster with one master and one worker node using contiv vpp as k8s cni plugin.
  2. Launch any pod like ngnix.
  3. Join new worker node in the cluster.
  4. Contiv-vswitch pod getting restarted in master and old worker node.
    How to avoid it ? Can anyone please help ?