[ 1864.578511] br0: port 1(dummy0) entered blocking state
[ 1864.578582] br0: port 1(dummy0) entered disabled state
[ 1864.578639] dummy0: entered allmulticast mode
[ 1864.578717] dummy0: entered promiscuous mode
[ 1864.582657] br0: port 1(dummy0) entered blocking state
[ 1864.582679] br0: port 1(dummy0) entered forwarding state
[ 1864.859711] dummy0: left allmulticast mode
[ 1864.859770] dummy0: left promiscuous mode
[ 1864.859825] br0: port 1(dummy0) entered disabled state