[ 2129.513092][T23679] br0: port 1(dummy0) entered blocking state
[ 2129.513320][T23679] br0: port 1(dummy0) entered disabled state
[ 2129.513532][T23679] dummy0: entered allmulticast mode
[ 2129.514613][T23679] dummy0: entered promiscuous mode
[ 2129.539934][T23680] br0: port 1(dummy0) entered blocking state
[ 2129.540309][T23680] br0: port 1(dummy0) entered forwarding state
[ 2131.809026][   T12] dummy0: left allmulticast mode
[ 2131.809952][   T12] dummy0: left promiscuous mode
[ 2131.810188][   T12] br0: port 1(dummy0) entered disabled state