[ 2244.440966][T10917] br0: port 1(dummy0) entered blocking state
[ 2244.441163][T10917] br0: port 1(dummy0) entered disabled state
[ 2244.441325][T10917] dummy0: entered allmulticast mode
[ 2244.442191][T10917] dummy0: entered promiscuous mode
[ 2244.477122][T10918] br0: port 1(dummy0) entered blocking state
[ 2244.477298][T10918] br0: port 1(dummy0) entered forwarding state
[ 2246.490705][   T12] dummy0: left allmulticast mode
[ 2246.490904][   T12] dummy0: left promiscuous mode
[ 2246.491134][   T12] br0: port 1(dummy0) entered disabled state