[ 1893.625688][T20056] br0: port 1(dummy0) entered blocking state
[ 1893.625887][T20056] br0: port 1(dummy0) entered disabled state
[ 1893.626054][T20056] dummy0: entered allmulticast mode
[ 1893.627078][T20056] dummy0: entered promiscuous mode
[ 1893.662053][T20057] br0: port 1(dummy0) entered blocking state
[ 1893.662353][T20057] br0: port 1(dummy0) entered forwarding state
[ 1895.635160][   T70] dummy0: left allmulticast mode
[ 1895.635996][   T70] dummy0: left promiscuous mode
[ 1895.636339][   T70] br0: port 1(dummy0) entered disabled state