[ 1885.368212] br0: port 1(dummy0) entered blocking state
[ 1885.368281] br0: port 1(dummy0) entered disabled state
[ 1885.368345] dummy0: entered allmulticast mode
[ 1885.368422] dummy0: entered promiscuous mode
[ 1885.371703] br0: port 1(dummy0) entered blocking state
[ 1885.371723] br0: port 1(dummy0) entered forwarding state
[ 1885.609560] dummy0: left allmulticast mode
[ 1885.609595] dummy0: left promiscuous mode
[ 1885.609618] br0: port 1(dummy0) entered disabled state