[ 1861.287481] br0: port 1(dummy0) entered blocking state
[ 1861.287530] br0: port 1(dummy0) entered disabled state
[ 1861.287562] dummy0: entered allmulticast mode
[ 1861.287620] dummy0: entered promiscuous mode
[ 1861.291080] br0: port 1(dummy0) entered blocking state
[ 1861.291114] br0: port 1(dummy0) entered forwarding state
[ 1861.525066] dummy0: left allmulticast mode
[ 1861.525108] dummy0: left promiscuous mode
[ 1861.525209] br0: port 1(dummy0) entered disabled state