[ 1731.314339] br0: port 1(dummy0) entered blocking state
[ 1731.314384] br0: port 1(dummy0) entered disabled state
[ 1731.314420] dummy0: entered allmulticast mode
[ 1731.314471] dummy0: entered promiscuous mode
[ 1731.317014] br0: port 1(dummy0) entered blocking state
[ 1731.317048] br0: port 1(dummy0) entered forwarding state
[ 1731.511084] dummy0: left allmulticast mode
[ 1731.511113] dummy0: left promiscuous mode
[ 1731.511141] br0: port 1(dummy0) entered disabled state