[ 2106.964245][ T8543] br0: port 1(dummy0) entered blocking state
[ 2106.964569][ T8543] br0: port 1(dummy0) entered disabled state
[ 2106.964852][ T8543] dummy0: entered allmulticast mode
[ 2106.965887][ T8543] dummy0: entered promiscuous mode
[ 2107.002074][ T8544] br0: port 1(dummy0) entered blocking state
[ 2107.002448][ T8544] br0: port 1(dummy0) entered forwarding state
[ 2109.540348][   T72] dummy0: left allmulticast mode
[ 2109.540880][   T72] dummy0: left promiscuous mode
[ 2109.541207][   T72] br0: port 1(dummy0) entered disabled state