OVN working configuration

Hi Team,

Please share how ovn bridge mappings will work or send traffic from VM to VM in same network as well through VM to external network with below two different bridge mapping configuration.

1st:-

ovn-chassis:
  bridge-interface-mappings: br-ex:enp1s0
  ovn-bridge-mappings: physnet1:br-ex
neutron-api:
  neutron-security-groups: true
  flat-network-providers: physnet1

2nd:-

ovn-chassis:
bridge-interface-mappings: >-
  br-ex:52:54:00:03:01:01
  br-ex:52:54:00:03:01:02
  br-ex:52:54:00:03:01:03
  br-ex:52:54:00:03:01:04
  ovn-bridge-mappings: physnet1:br-ex
neutron-api:
  neutron-security-groups: true
  flat-network-providers: physnet1

Regards,
Dhanesh.