[ 1734.591069] br0: port 1(dummy0) entered blocking state
[ 1734.591148] br0: port 1(dummy0) entered disabled state
[ 1734.591214] dummy0: entered allmulticast mode
[ 1734.591297] dummy0: entered promiscuous mode
[ 1734.594886] br0: port 1(dummy0) entered blocking state
[ 1734.594921] br0: port 1(dummy0) entered forwarding state
[ 1734.855782] dummy0: left allmulticast mode
[ 1734.855854] dummy0: left promiscuous mode
[ 1734.855946] br0: port 1(dummy0) entered disabled state