[ 1974.307864][T16816] br0: port 1(dummy0) entered blocking state
[ 1974.308063][T16816] br0: port 1(dummy0) entered disabled state
[ 1974.308239][T16816] dummy0: entered allmulticast mode
[ 1974.309154][T16816] dummy0: entered promiscuous mode
[ 1974.330728][T16817] br0: port 1(dummy0) entered blocking state
[ 1974.331046][T16817] br0: port 1(dummy0) entered forwarding state
[ 1976.167376][   T68] dummy0: left allmulticast mode
[ 1976.167537][   T68] dummy0: left promiscuous mode
[ 1976.167757][   T68] br0: port 1(dummy0) entered disabled state