[ 2202.795107][ T7448] br0: port 1(dummy0) entered blocking state
[ 2202.795315][ T7448] br0: port 1(dummy0) entered disabled state
[ 2202.795894][ T7448] dummy0: entered allmulticast mode
[ 2202.796788][ T7448] dummy0: entered promiscuous mode
[ 2202.817018][ T7449] br0: port 1(dummy0) entered blocking state
[ 2202.817378][ T7449] br0: port 1(dummy0) entered forwarding state
[ 2204.770036][   T71] dummy0: left allmulticast mode
[ 2204.770198][   T71] dummy0: left promiscuous mode
[ 2204.770814][   T71] br0: port 1(dummy0) entered disabled state