[ 2076.727804][T20097] br0: port 1(dummy0) entered blocking state
[ 2076.728557][T20097] br0: port 1(dummy0) entered disabled state
[ 2076.728720][T20097] dummy0: entered allmulticast mode
[ 2076.729633][T20097] dummy0: entered promiscuous mode
[ 2076.766971][T20098] br0: port 1(dummy0) entered blocking state
[ 2076.767140][T20098] br0: port 1(dummy0) entered forwarding state
[ 2078.713088][   T12] dummy0: left allmulticast mode
[ 2078.714086][   T12] dummy0: left promiscuous mode
[ 2078.714376][   T12] br0: port 1(dummy0) entered disabled state