[ 1630.263844] br0: port 1(dummy0) entered blocking state
[ 1630.263877] br0: port 1(dummy0) entered disabled state
[ 1630.263972] dummy0: entered allmulticast mode
[ 1630.264051] dummy0: entered promiscuous mode
[ 1630.266970] br0: port 1(dummy0) entered blocking state
[ 1630.266993] br0: port 1(dummy0) entered forwarding state
[ 1630.451024] dummy0: left allmulticast mode
[ 1630.451053] dummy0: left promiscuous mode
[ 1630.451077] br0: port 1(dummy0) entered disabled state