[ 2270.879738][T11629] br0: port 1(dummy0) entered blocking state
[ 2270.880079][T11629] br0: port 1(dummy0) entered disabled state
[ 2270.880968][T11629] dummy0: entered allmulticast mode
[ 2270.882690][T11629] dummy0: entered promiscuous mode
[ 2270.912462][T11630] br0: port 1(dummy0) entered blocking state
[ 2270.912999][T11630] br0: port 1(dummy0) entered forwarding state
[ 2273.421806][   T12] dummy0: left allmulticast mode
[ 2273.423213][   T12] dummy0: left promiscuous mode
[ 2273.423752][   T12] br0: port 1(dummy0) entered disabled state