[ 1706.371822] br0: port 1(dummy0) entered blocking state
[ 1706.371872] br0: port 1(dummy0) entered disabled state
[ 1706.371904] dummy0: entered allmulticast mode
[ 1706.371965] dummy0: entered promiscuous mode
[ 1706.374337] br0: port 1(dummy0) entered blocking state
[ 1706.374372] br0: port 1(dummy0) entered forwarding state
[ 1706.540985] dummy0: left allmulticast mode
[ 1706.541027] dummy0: left promiscuous mode
[ 1706.541065] br0: port 1(dummy0) entered disabled state