[ 1649.907081] br0: port 1(dummy0) entered blocking state
[ 1649.907124] br0: port 1(dummy0) entered disabled state
[ 1649.907164] dummy0: entered allmulticast mode
[ 1649.907223] dummy0: entered promiscuous mode
[ 1649.910135] br0: port 1(dummy0) entered blocking state
[ 1649.910202] br0: port 1(dummy0) entered forwarding state
[ 1650.096762] dummy0: left allmulticast mode
[ 1650.096824] dummy0: left promiscuous mode
[ 1650.096885] br0: port 1(dummy0) entered disabled state