[ 2133.965958][ T6696] br0: port 1(dummy0) entered blocking state
[ 2133.966197][ T6696] br0: port 1(dummy0) entered disabled state
[ 2133.966431][ T6696] dummy0: entered allmulticast mode
[ 2133.967425][ T6696] dummy0: entered promiscuous mode
[ 2133.994882][ T6697] br0: port 1(dummy0) entered blocking state
[ 2133.995241][ T6697] br0: port 1(dummy0) entered forwarding state
[ 2135.751425][   T12] dummy0: left allmulticast mode
[ 2135.751591][   T12] dummy0: left promiscuous mode
[ 2135.751895][   T12] br0: port 1(dummy0) entered disabled state