[ 2137.956195][T20630] br0: port 1(dummy0) entered blocking state
[ 2137.956383][T20630] br0: port 1(dummy0) entered disabled state
[ 2137.956545][T20630] dummy0: entered allmulticast mode
[ 2137.957433][T20630] dummy0: entered promiscuous mode
[ 2137.979389][T20631] br0: port 1(dummy0) entered blocking state
[ 2137.979606][T20631] br0: port 1(dummy0) entered forwarding state
[ 2139.993906][   T70] dummy0: left allmulticast mode
[ 2139.994157][   T70] dummy0: left promiscuous mode
[ 2139.994472][   T70] br0: port 1(dummy0) entered disabled state