[ 1774.900205] br0: port 1(dummy0) entered blocking state
[ 1774.900281] br0: port 1(dummy0) entered disabled state
[ 1774.900351] dummy0: entered allmulticast mode
[ 1774.900436] dummy0: entered promiscuous mode
[ 1774.903236] br0: port 1(dummy0) entered blocking state
[ 1774.903266] br0: port 1(dummy0) entered forwarding state
[ 1775.095081] dummy0: left allmulticast mode
[ 1775.095119] dummy0: left promiscuous mode
[ 1775.095150] br0: port 1(dummy0) entered disabled state