[ 1694.395141] br0: port 1(dummy0) entered blocking state
[ 1694.395235] br0: port 1(dummy0) entered disabled state
[ 1694.395305] dummy0: entered allmulticast mode
[ 1694.395391] dummy0: entered promiscuous mode
[ 1694.398130] br0: port 1(dummy0) entered blocking state
[ 1694.398161] br0: port 1(dummy0) entered forwarding state
[ 1694.585268] dummy0: left allmulticast mode
[ 1694.585331] dummy0: left promiscuous mode
[ 1694.585362] br0: port 1(dummy0) entered disabled state