[ 1985.491102][T28463] br0: port 1(dummy0) entered blocking state
[ 1985.491337][T28463] br0: port 1(dummy0) entered disabled state
[ 1985.491579][T28463] dummy0: entered allmulticast mode
[ 1985.492500][T28463] dummy0: entered promiscuous mode
[ 1985.522200][T28464] br0: port 1(dummy0) entered blocking state
[ 1985.522740][T28464] br0: port 1(dummy0) entered forwarding state
[ 1987.543478][   T12] dummy0: left allmulticast mode
[ 1987.544337][   T12] dummy0: left promiscuous mode
[ 1987.544581][   T12] br0: port 1(dummy0) entered disabled state