[ 2028.643883] br0: port 1(dummy0) entered blocking state
[ 2028.643918] br0: port 1(dummy0) entered disabled state
[ 2028.643953] dummy0: entered allmulticast mode
[ 2028.644008] dummy0: entered promiscuous mode
[ 2028.646920] br0: port 1(dummy0) entered blocking state
[ 2028.646991] br0: port 1(dummy0) entered forwarding state
[ 2028.839413] dummy0: left allmulticast mode
[ 2028.839444] dummy0: left promiscuous mode
[ 2028.839474] br0: port 1(dummy0) entered disabled state