[ 1896.125581][ T8325] br0: port 1(dummy0) entered blocking state
[ 1896.125777][ T8325] br0: port 1(dummy0) entered disabled state
[ 1896.125935][ T8325] dummy0: entered allmulticast mode
[ 1896.127468][ T8325] dummy0: entered promiscuous mode
[ 1896.159272][ T8326] br0: port 1(dummy0) entered blocking state
[ 1896.159591][ T8326] br0: port 1(dummy0) entered forwarding state
[ 1898.083131][   T12] dummy0: left allmulticast mode
[ 1898.083665][   T12] dummy0: left promiscuous mode
[ 1898.083883][   T12] br0: port 1(dummy0) entered disabled state