[ 1673.758934] br0: port 1(dummy0) entered blocking state
[ 1673.758979] br0: port 1(dummy0) entered disabled state
[ 1673.759025] dummy0: entered allmulticast mode
[ 1673.759078] dummy0: entered promiscuous mode
[ 1673.762072] br0: port 1(dummy0) entered blocking state
[ 1673.762135] br0: port 1(dummy0) entered forwarding state
[ 1673.969053] dummy0: left allmulticast mode
[ 1673.969118] dummy0: left promiscuous mode
[ 1673.969178] br0: port 1(dummy0) entered disabled state