[ 1950.372435] br0: port 1(dummy0) entered blocking state
[ 1950.372479] br0: port 1(dummy0) entered disabled state
[ 1950.372519] dummy0: entered allmulticast mode
[ 1950.372574] dummy0: entered promiscuous mode
[ 1950.376085] br0: port 1(dummy0) entered blocking state
[ 1950.376147] br0: port 1(dummy0) entered forwarding state
[ 1950.623373] dummy0: left allmulticast mode
[ 1950.623412] dummy0: left promiscuous mode
[ 1950.623497] br0: port 1(dummy0) entered disabled state