[ 1701.996311] br0: port 1(dummy0) entered blocking state
[ 1701.996352] br0: port 1(dummy0) entered disabled state
[ 1701.996389] dummy0: entered allmulticast mode
[ 1701.996436] dummy0: entered promiscuous mode
[ 1701.999682] br0: port 1(dummy0) entered blocking state
[ 1701.999748] br0: port 1(dummy0) entered forwarding state
[ 1702.202480] dummy0: left allmulticast mode
[ 1702.202510] dummy0: left promiscuous mode
[ 1702.202537] br0: port 1(dummy0) entered disabled state