[ 1998.969406][T12453] br0: port 1(dummy0) entered blocking state
[ 1998.969616][T12453] br0: port 1(dummy0) entered disabled state
[ 1998.969782][T12453] dummy0: entered allmulticast mode
[ 1998.970656][T12453] dummy0: entered promiscuous mode
[ 1998.994897][T12454] br0: port 1(dummy0) entered blocking state
[ 1998.995108][T12454] br0: port 1(dummy0) entered forwarding state
[ 2000.967900][   T70] dummy0: left allmulticast mode
[ 2000.968971][   T70] dummy0: left promiscuous mode
[ 2000.969282][   T70] br0: port 1(dummy0) entered disabled state