[ 1714.914986] br0: port 1(dummy0) entered blocking state
[ 1714.915053] br0: port 1(dummy0) entered disabled state
[ 1714.915120] dummy0: entered allmulticast mode
[ 1714.915216] dummy0: entered promiscuous mode
[ 1714.918131] br0: port 1(dummy0) entered blocking state
[ 1714.918165] br0: port 1(dummy0) entered forwarding state
[ 1715.105361] dummy0: left allmulticast mode
[ 1715.105388] dummy0: left promiscuous mode
[ 1715.105414] br0: port 1(dummy0) entered disabled state