[ 2114.894037][ T4838] br0: port 1(dummy0) entered blocking state
[ 2114.894227][ T4838] br0: port 1(dummy0) entered disabled state
[ 2114.894398][ T4838] dummy0: entered allmulticast mode
[ 2114.895374][ T4838] dummy0: entered promiscuous mode
[ 2114.923663][ T4839] br0: port 1(dummy0) entered blocking state
[ 2114.924454][ T4839] br0: port 1(dummy0) entered forwarding state
[ 2117.089408][   T69] dummy0: left allmulticast mode
[ 2117.090609][   T69] dummy0: left promiscuous mode
[ 2117.091305][   T69] br0: port 1(dummy0) entered disabled state