[ 2130.639406][T21647] br0: port 1(dummy0) entered blocking state
[ 2130.639636][T21647] br0: port 1(dummy0) entered disabled state
[ 2130.639848][T21647] dummy0: entered allmulticast mode
[ 2130.640838][T21647] dummy0: entered promiscuous mode
[ 2130.669447][T21648] br0: port 1(dummy0) entered blocking state
[ 2130.669672][T21648] br0: port 1(dummy0) entered forwarding state
[ 2132.540505][   T68] dummy0: left allmulticast mode
[ 2132.541224][   T68] dummy0: left promiscuous mode
[ 2132.541487][   T68] br0: port 1(dummy0) entered disabled state