[ 1912.657363][T18043] br0: port 1(dummy0) entered blocking state
[ 1912.657575][T18043] br0: port 1(dummy0) entered disabled state
[ 1912.657732][T18043] dummy0: entered allmulticast mode
[ 1912.659083][T18043] dummy0: entered promiscuous mode
[ 1912.686481][T18044] br0: port 1(dummy0) entered blocking state
[ 1912.686745][T18044] br0: port 1(dummy0) entered forwarding state
[ 1914.661445][   T12] dummy0: left allmulticast mode
[ 1914.662199][   T12] dummy0: left promiscuous mode
[ 1914.662515][   T12] br0: port 1(dummy0) entered disabled state