[ 1773.318152] br0: port 1(dummy0) entered blocking state
[ 1773.318219] br0: port 1(dummy0) entered disabled state
[ 1773.318288] dummy0: entered allmulticast mode
[ 1773.318372] dummy0: entered promiscuous mode
[ 1773.321743] br0: port 1(dummy0) entered blocking state
[ 1773.321774] br0: port 1(dummy0) entered forwarding state
[ 1773.564893] dummy0: left allmulticast mode
[ 1773.564933] dummy0: left promiscuous mode
[ 1773.564969] br0: port 1(dummy0) entered disabled state