The OVN Kubernetes localnet secondary network configuration does not support more than one bridge per network interface

문제

• Why is the localnet network connectivity unstable when more than one ovs bridge is assigned to a network interface?

• The applied NodeNetworkConfigurationPolicy CR is separate by bridge configuration and assigned to the same port:

  $ oc get nncp localnet-ovs-bridge -oyaml
  apiVersion: nmstate.io/v1
  kind: NodeNetworkConfigurationPolicy
  metadata:
  name: localnet-ovs-bridge
  spec:
  desiredState:
  interfaces:
  - bridge:
      allow-extra-patch-ports: true
      options:
        stp: false
      port:
      - name: ens3 #<---
    [...]
    name: br-ovs #<---
    state: up
    type: ovs-bridge
  ovn:
    bridge-mappings:
    - bridge: br-ovs
      localnet: localnet-network
      state: present
  $ oc get nncp localnet-ovs-bridge-test -oyaml
  apiVersion: nmstate.io/v1
  kind: NodeNetworkConfigurationPolicy
  metadata:
  name: localnet-ovs-bridge-test
  spec:
  desiredState:
  interfaces:
  - bridge:
      allow-extra-patch-ports: true
      options:
        stp: false
      port:
      - name: ens3 #<---
    [...]
    name: br-ovs-test #<---
    state: up
    type: ovs-bridge
  ovn:
    bridge-mappings:
    - bridge: br-ovs-test
      localnet: localnet-network-test
      state: present