[ 2093.561092][T12020] br0: port 1(dummy0) entered blocking state
[ 2093.561322][T12020] br0: port 1(dummy0) entered disabled state
[ 2093.561540][T12020] dummy0: entered allmulticast mode
[ 2093.562495][T12020] dummy0: entered promiscuous mode
[ 2093.595159][T12021] br0: port 1(dummy0) entered blocking state
[ 2093.595465][T12021] br0: port 1(dummy0) entered forwarding state
[ 2095.968505][   T12] dummy0: left allmulticast mode
[ 2095.969264][   T12] dummy0: left promiscuous mode
[ 2095.969502][   T12] br0: port 1(dummy0) entered disabled state