[ 1598.764140] br0: port 1(dummy0) entered blocking state
[ 1598.764183] br0: port 1(dummy0) entered disabled state
[ 1598.764211] dummy0: entered allmulticast mode
[ 1598.764264] dummy0: entered promiscuous mode
[ 1598.766802] br0: port 1(dummy0) entered blocking state
[ 1598.766864] br0: port 1(dummy0) entered forwarding state
[ 1598.941714] dummy0: left allmulticast mode
[ 1598.941757] dummy0: left promiscuous mode
[ 1598.941843] br0: port 1(dummy0) entered disabled state