[ 1969.228494][T25510] br0: port 1(dummy0) entered blocking state
[ 1969.228734][T25510] br0: port 1(dummy0) entered disabled state
[ 1969.228969][T25510] dummy0: entered allmulticast mode
[ 1969.229902][T25510] dummy0: entered promiscuous mode
[ 1969.272385][T25511] br0: port 1(dummy0) entered blocking state
[ 1969.272565][T25511] br0: port 1(dummy0) entered forwarding state
[ 1971.742247][   T12] dummy0: left allmulticast mode
[ 1971.742431][   T12] dummy0: left promiscuous mode
[ 1971.742649][   T12] br0: port 1(dummy0) entered disabled state