[ 2228.003828][T14017] br0: port 1(dummy0) entered blocking state
[ 2228.004080][T14017] br0: port 1(dummy0) entered disabled state
[ 2228.004303][T14017] dummy0: entered allmulticast mode
[ 2228.005380][T14017] dummy0: entered promiscuous mode
[ 2228.033975][T14018] br0: port 1(dummy0) entered blocking state
[ 2228.034290][T14018] br0: port 1(dummy0) entered forwarding state
[ 2230.057131][   T12] dummy0: left allmulticast mode
[ 2230.057433][   T12] dummy0: left promiscuous mode
[ 2230.057657][   T12] br0: port 1(dummy0) entered disabled state