[ 2129.399219][T19798] br0: port 1(dummy0) entered blocking state
[ 2129.399411][T19798] br0: port 1(dummy0) entered disabled state
[ 2129.399583][T19798] dummy0: entered allmulticast mode
[ 2129.400461][T19798] dummy0: entered promiscuous mode
[ 2129.423222][T19799] br0: port 1(dummy0) entered blocking state
[ 2129.423524][T19799] br0: port 1(dummy0) entered forwarding state
[ 2131.415778][   T12] dummy0: left allmulticast mode
[ 2131.416106][   T12] dummy0: left promiscuous mode
[ 2131.416360][   T12] br0: port 1(dummy0) entered disabled state