[ 1646.569320] br0: port 1(dummy0) entered blocking state
[ 1646.569384] br0: port 1(dummy0) entered disabled state
[ 1646.569448] dummy0: entered allmulticast mode
[ 1646.569545] dummy0: entered promiscuous mode
[ 1646.572085] br0: port 1(dummy0) entered blocking state
[ 1646.572122] br0: port 1(dummy0) entered forwarding state
[ 1646.768171] dummy0: left allmulticast mode
[ 1646.768203] dummy0: left promiscuous mode
[ 1646.768229] br0: port 1(dummy0) entered disabled state