[ 1612.777946] br0: port 1(dummy0) entered blocking state
[ 1612.778022] br0: port 1(dummy0) entered disabled state
[ 1612.778084] dummy0: entered allmulticast mode
[ 1612.778173] dummy0: entered promiscuous mode
[ 1612.780652] br0: port 1(dummy0) entered blocking state
[ 1612.780689] br0: port 1(dummy0) entered forwarding state
[ 1612.947745] dummy0: left allmulticast mode
[ 1612.947776] dummy0: left promiscuous mode
[ 1612.947803] br0: port 1(dummy0) entered disabled state