[ 1788.833051] br0: port 1(dummy0) entered blocking state
[ 1788.833101] br0: port 1(dummy0) entered disabled state
[ 1788.833136] dummy0: entered allmulticast mode
[ 1788.833200] dummy0: entered promiscuous mode
[ 1788.836775] br0: port 1(dummy0) entered blocking state
[ 1788.836848] br0: port 1(dummy0) entered forwarding state
[ 1789.112036] dummy0: left allmulticast mode
[ 1789.112076] dummy0: left promiscuous mode
[ 1789.112109] br0: port 1(dummy0) entered disabled state