[ 1714.062740] br0: port 1(dummy0) entered blocking state
[ 1714.062788] br0: port 1(dummy0) entered disabled state
[ 1714.062824] dummy0: entered allmulticast mode
[ 1714.062873] dummy0: entered promiscuous mode
[ 1714.065606] br0: port 1(dummy0) entered blocking state
[ 1714.065637] br0: port 1(dummy0) entered forwarding state
[ 1714.256609] dummy0: left allmulticast mode
[ 1714.256639] dummy0: left promiscuous mode
[ 1714.256663] br0: port 1(dummy0) entered disabled state