[ 2450.486988][T18661] br0: port 1(dummy0) entered blocking state
[ 2450.487299][T18661] br0: port 1(dummy0) entered disabled state
[ 2450.487571][T18661] dummy0: entered allmulticast mode
[ 2450.488547][T18661] dummy0: entered promiscuous mode
[ 2450.514618][T18662] br0: port 1(dummy0) entered blocking state
[ 2450.514994][T18662] br0: port 1(dummy0) entered forwarding state
[ 2453.005717][   T12] dummy0: left allmulticast mode
[ 2453.005982][   T12] dummy0: left promiscuous mode
[ 2453.006293][   T12] br0: port 1(dummy0) entered disabled state