[ 2175.334870][T21884] br0: port 1(dummy0) entered blocking state
[ 2175.335181][T21884] br0: port 1(dummy0) entered disabled state
[ 2175.335459][T21884] dummy0: entered allmulticast mode
[ 2175.336447][T21884] dummy0: entered promiscuous mode
[ 2175.364262][T21885] br0: port 1(dummy0) entered blocking state
[ 2175.364708][T21885] br0: port 1(dummy0) entered forwarding state
[ 2177.860762][   T69] dummy0: left allmulticast mode
[ 2177.861242][   T69] dummy0: left promiscuous mode
[ 2177.861567][   T69] br0: port 1(dummy0) entered disabled state