[ 2309.585218][T19270] br0: port 1(dummy0) entered blocking state
[ 2309.585524][T19270] br0: port 1(dummy0) entered disabled state
[ 2309.585804][T19270] dummy0: entered allmulticast mode
[ 2309.586749][T19270] dummy0: entered promiscuous mode
[ 2309.620364][T19271] br0: port 1(dummy0) entered blocking state
[ 2309.620708][T19271] br0: port 1(dummy0) entered forwarding state
[ 2312.057260][   T12] dummy0: left allmulticast mode
[ 2312.057641][   T12] dummy0: left promiscuous mode
[ 2312.057955][   T12] br0: port 1(dummy0) entered disabled state