[ 1613.699027] br0: port 1(dummy0) entered blocking state
[ 1613.699070] br0: port 1(dummy0) entered disabled state
[ 1613.699102] dummy0: entered allmulticast mode
[ 1613.699151] dummy0: entered promiscuous mode
[ 1613.702178] br0: port 1(dummy0) entered blocking state
[ 1613.702240] br0: port 1(dummy0) entered forwarding state
[ 1613.911473] dummy0: left allmulticast mode
[ 1613.911504] dummy0: left promiscuous mode
[ 1613.911530] br0: port 1(dummy0) entered disabled state