[ 1785.178637] br0: port 1(dummy0) entered blocking state
[ 1785.178671] br0: port 1(dummy0) entered disabled state
[ 1785.178709] dummy0: entered allmulticast mode
[ 1785.178757] dummy0: entered promiscuous mode
[ 1785.182224] br0: port 1(dummy0) entered blocking state
[ 1785.182288] br0: port 1(dummy0) entered forwarding state
[ 1785.435903] dummy0: left allmulticast mode
[ 1785.435964] dummy0: left promiscuous mode
[ 1785.436025] br0: port 1(dummy0) entered disabled state