[ 1932.279442][ T8178] br0: port 1(dummy0) entered blocking state
[ 1932.280407][ T8178] br0: port 1(dummy0) entered disabled state
[ 1932.280572][ T8178] dummy0: entered allmulticast mode
[ 1932.281849][ T8178] dummy0: entered promiscuous mode
[ 1932.308535][ T8179] br0: port 1(dummy0) entered blocking state
[ 1932.308907][ T8179] br0: port 1(dummy0) entered forwarding state
[ 1934.239763][   T71] dummy0: left allmulticast mode
[ 1934.240278][   T71] dummy0: left promiscuous mode
[ 1934.240503][   T71] br0: port 1(dummy0) entered disabled state