[ 1969.744146][T25307] br0: port 1(dummy0) entered blocking state
[ 1969.744357][T25307] br0: port 1(dummy0) entered disabled state
[ 1969.744533][T25307] dummy0: entered allmulticast mode
[ 1969.745455][T25307] dummy0: entered promiscuous mode
[ 1969.771502][T25308] br0: port 1(dummy0) entered blocking state
[ 1969.771844][T25308] br0: port 1(dummy0) entered forwarding state
[ 1971.670850][   T12] dummy0: left allmulticast mode
[ 1971.671067][   T12] dummy0: left promiscuous mode
[ 1971.671335][   T12] br0: port 1(dummy0) entered disabled state