[ 1975.647058][T23959] br0: port 1(dummy0) entered blocking state
[ 1975.647250][T23959] br0: port 1(dummy0) entered disabled state
[ 1975.647411][T23959] dummy0: entered allmulticast mode
[ 1975.648348][T23959] dummy0: entered promiscuous mode
[ 1975.688880][T23960] br0: port 1(dummy0) entered blocking state
[ 1975.689151][T23960] br0: port 1(dummy0) entered forwarding state
[ 1977.601082][   T12] dummy0: left allmulticast mode
[ 1977.602815][   T12] dummy0: left promiscuous mode
[ 1977.603064][   T12] br0: port 1(dummy0) entered disabled state