[ 2109.425334][T15711] br0: port 1(dummy0) entered blocking state
[ 2109.425564][T15711] br0: port 1(dummy0) entered disabled state
[ 2109.426360][T15711] dummy0: entered allmulticast mode
[ 2109.427298][T15711] dummy0: entered promiscuous mode
[ 2109.456208][T15712] br0: port 1(dummy0) entered blocking state
[ 2109.456379][T15712] br0: port 1(dummy0) entered forwarding state
[ 2111.452304][   T12] dummy0: left allmulticast mode
[ 2111.452493][   T12] dummy0: left promiscuous mode
[ 2111.452728][   T12] br0: port 1(dummy0) entered disabled state