[ 2033.176751][T10699] br0: port 1(dummy0) entered blocking state
[ 2033.176957][T10699] br0: port 1(dummy0) entered disabled state
[ 2033.177304][T10699] dummy0: entered allmulticast mode
[ 2033.178336][T10699] dummy0: entered promiscuous mode
[ 2033.202672][T10700] br0: port 1(dummy0) entered blocking state
[ 2033.202951][T10700] br0: port 1(dummy0) entered forwarding state
[ 2035.366526][   T12] dummy0: left allmulticast mode
[ 2035.367457][   T12] dummy0: left promiscuous mode
[ 2035.367693][   T12] br0: port 1(dummy0) entered disabled state