[ 1887.022514] br0: port 1(dummy0) entered blocking state
[ 1887.022584] br0: port 1(dummy0) entered disabled state
[ 1887.022651] dummy0: entered allmulticast mode
[ 1887.022735] dummy0: entered promiscuous mode
[ 1887.026189] br0: port 1(dummy0) entered blocking state
[ 1887.026225] br0: port 1(dummy0) entered forwarding state
[ 1887.268178] dummy0: left allmulticast mode
[ 1887.268230] dummy0: left promiscuous mode
[ 1887.268270] br0: port 1(dummy0) entered disabled state