[ 1777.137956] br0: port 1(dummy0) entered blocking state
[ 1777.138014] br0: port 1(dummy0) entered disabled state
[ 1777.138050] dummy0: entered allmulticast mode
[ 1777.138099] dummy0: entered promiscuous mode
[ 1777.141774] br0: port 1(dummy0) entered blocking state
[ 1777.141815] br0: port 1(dummy0) entered forwarding state
[ 1777.401483] dummy0: left allmulticast mode
[ 1777.401551] dummy0: left promiscuous mode
[ 1777.401614] br0: port 1(dummy0) entered disabled state