[ 2202.886010][T14893] br0: port 1(dummy0) entered blocking state
[ 2202.886254][T14893] br0: port 1(dummy0) entered disabled state
[ 2202.886494][T14893] dummy0: entered allmulticast mode
[ 2202.887447][T14893] dummy0: entered promiscuous mode
[ 2202.912755][T14894] br0: port 1(dummy0) entered blocking state
[ 2202.913023][T14894] br0: port 1(dummy0) entered forwarding state
[ 2204.941075][   T12] dummy0: left allmulticast mode
[ 2204.941368][   T12] dummy0: left promiscuous mode
[ 2204.941587][   T12] br0: port 1(dummy0) entered disabled state