[ 1950.646815][T30657] br0: port 1(dummy0) entered blocking state
[ 1950.647007][T30657] br0: port 1(dummy0) entered disabled state
[ 1950.647179][T30657] dummy0: entered allmulticast mode
[ 1950.648193][T30657] dummy0: entered promiscuous mode
[ 1950.679419][T30658] br0: port 1(dummy0) entered blocking state
[ 1950.679740][T30658] br0: port 1(dummy0) entered forwarding state
[ 1953.004847][   T12] dummy0: left allmulticast mode
[ 1953.005222][   T12] dummy0: left promiscuous mode
[ 1953.005505][   T12] br0: port 1(dummy0) entered disabled state