[ 1636.296005] br0: port 1(dummy0) entered blocking state
[ 1636.296079] br0: port 1(dummy0) entered disabled state
[ 1636.296146] dummy0: entered allmulticast mode
[ 1636.296228] dummy0: entered promiscuous mode
[ 1636.299002] br0: port 1(dummy0) entered blocking state
[ 1636.299064] br0: port 1(dummy0) entered forwarding state
[ 1636.483590] dummy0: left allmulticast mode
[ 1636.483618] dummy0: left promiscuous mode
[ 1636.483654] br0: port 1(dummy0) entered disabled state