[ 1701.903208] br0: port 1(dummy0) entered blocking state
[ 1701.903247] br0: port 1(dummy0) entered disabled state
[ 1701.903268] dummy0: entered allmulticast mode
[ 1701.903312] dummy0: entered promiscuous mode
[ 1701.906639] br0: port 1(dummy0) entered blocking state
[ 1701.906683] br0: port 1(dummy0) entered forwarding state
[ 1702.124882] dummy0: left allmulticast mode
[ 1702.124924] dummy0: left promiscuous mode
[ 1702.124951] br0: port 1(dummy0) entered disabled state