[ 2204.489181][ T8224] br0: port 1(dummy0) entered blocking state
[ 2204.489385][ T8224] br0: port 1(dummy0) entered disabled state
[ 2204.489569][ T8224] dummy0: entered allmulticast mode
[ 2204.490491][ T8224] dummy0: entered promiscuous mode
[ 2204.530956][ T8225] br0: port 1(dummy0) entered blocking state
[ 2204.531216][ T8225] br0: port 1(dummy0) entered forwarding state
[ 2206.850049][   T12] dummy0: left allmulticast mode
[ 2206.850257][   T12] dummy0: left promiscuous mode
[ 2206.850541][   T12] br0: port 1(dummy0) entered disabled state