Hot plugging of bridged interface requires only a live migration, but the console warning message indicates that a restart is necessary.

"The following areas have pending changes that will be applied when this VirtualMachine is restarted."

Always

1. Create net-attach-def of type cnv-bridge

apiVersion: k8s.cni.cncf.io/v1
kind: NetworkAttachmentDefinition
metadata:
  annotations:
    description: Testing
    k8s.v1.cni.cncf.io/resourceName: bridge.network.kubevirt.io/br-vmdata
  name: test-br
  namespace: default
spec:
  config: |-
    \{
      "name": "test-br",
      "type": "cnv-bridge",
      "cniVersion": "0.3.1",
      "bridge": "br-vmdata",
      "vlan": 1926,
      "macspoofchk": true,
      "ipam": {},
      "preserveDefaultVlan": false
    \}

2. Add bridge interface to running VM

   virtctl addinterface rhel-node-1 \
     --network-attachment-definition-name default/test-br \
     --name nettest

3. View VM details in console
4. Live migrate VM to any node without a restart and message disappears

Message: The following areas have pending changes that will be applied when this VirtualMachine is restarted.

Message: The following areas have pending changes that will be applied when this VirtualMachine is migrated.

NIC hot plugging is TP