[ 1841.276670] br0: port 1(dummy0) entered blocking state
[ 1841.276711] br0: port 1(dummy0) entered disabled state
[ 1841.276744] dummy0: entered allmulticast mode
[ 1841.276799] dummy0: entered promiscuous mode
[ 1841.280032] br0: port 1(dummy0) entered blocking state
[ 1841.280070] br0: port 1(dummy0) entered forwarding state
[ 1841.485226] dummy0: left allmulticast mode
[ 1841.485258] dummy0: left promiscuous mode
[ 1841.485292] br0: port 1(dummy0) entered disabled state