[ 2195.877347][T12449] br0: port 1(dummy0) entered blocking state
[ 2195.877658][T12449] br0: port 1(dummy0) entered disabled state
[ 2195.877932][T12449] dummy0: entered allmulticast mode
[ 2195.879546][T12449] dummy0: entered promiscuous mode
[ 2195.911951][T12450] br0: port 1(dummy0) entered blocking state
[ 2195.912537][T12450] br0: port 1(dummy0) entered forwarding state
[ 2198.327812][   T12] dummy0: left allmulticast mode
[ 2198.328730][   T12] dummy0: left promiscuous mode
[ 2198.329063][   T12] br0: port 1(dummy0) entered disabled state