[ 2145.220738][T12144] br0: port 1(dummy0) entered blocking state
[ 2145.220937][T12144] br0: port 1(dummy0) entered disabled state
[ 2145.221126][T12144] dummy0: entered allmulticast mode
[ 2145.222100][T12144] dummy0: entered promiscuous mode
[ 2145.244787][T12145] br0: port 1(dummy0) entered blocking state
[ 2145.245030][T12145] br0: port 1(dummy0) entered forwarding state
[ 2147.190519][   T12] dummy0: left allmulticast mode
[ 2147.190796][   T12] dummy0: left promiscuous mode
[ 2147.191020][   T12] br0: port 1(dummy0) entered disabled state