[ 2219.019696][T11524] br0: port 1(dummy0) entered blocking state
[ 2219.020047][T11524] br0: port 1(dummy0) entered disabled state
[ 2219.020399][T11524] dummy0: entered allmulticast mode
[ 2219.021954][T11524] dummy0: entered promiscuous mode
[ 2219.052349][T11525] br0: port 1(dummy0) entered blocking state
[ 2219.052729][T11525] br0: port 1(dummy0) entered forwarding state
[ 2221.439523][   T12] dummy0: left allmulticast mode
[ 2221.440719][   T12] dummy0: left promiscuous mode
[ 2221.441059][   T12] br0: port 1(dummy0) entered disabled state