[ 2099.269307][T22836] br0: port 1(dummy0) entered blocking state
[ 2099.269667][T22836] br0: port 1(dummy0) entered disabled state
[ 2099.269999][T22836] dummy0: entered allmulticast mode
[ 2099.271729][T22836] dummy0: entered promiscuous mode
[ 2099.298707][T22837] br0: port 1(dummy0) entered blocking state
[ 2099.299531][T22837] br0: port 1(dummy0) entered forwarding state
[ 2101.802003][   T12] dummy0: left allmulticast mode
[ 2101.802963][   T12] dummy0: left promiscuous mode
[ 2101.804443][   T12] br0: port 1(dummy0) entered disabled state