[ 1996.484363][T20094] br0: port 1(dummy0) entered blocking state
[ 1996.484573][T20094] br0: port 1(dummy0) entered disabled state
[ 1996.484780][T20094] dummy0: entered allmulticast mode
[ 1996.485766][T20094] dummy0: entered promiscuous mode
[ 1996.517316][T20095] br0: port 1(dummy0) entered blocking state
[ 1996.517528][T20095] br0: port 1(dummy0) entered forwarding state
[ 1998.498305][   T12] dummy0: left allmulticast mode
[ 1998.498912][   T12] dummy0: left promiscuous mode
[ 1998.499214][   T12] br0: port 1(dummy0) entered disabled state