[ 2268.438502][T11090] br0: port 1(dummy0) entered blocking state
[ 2268.438814][T11090] br0: port 1(dummy0) entered disabled state
[ 2268.439095][T11090] dummy0: entered allmulticast mode
[ 2268.440574][T11090] dummy0: entered promiscuous mode
[ 2268.467282][T11091] br0: port 1(dummy0) entered blocking state
[ 2268.467950][T11091] br0: port 1(dummy0) entered forwarding state
[ 2270.859593][   T12] dummy0: left allmulticast mode
[ 2270.860030][   T12] dummy0: left promiscuous mode
[ 2270.860431][   T12] br0: port 1(dummy0) entered disabled state