[ 2128.392599][T22522] br0: port 1(dummy0) entered blocking state
[ 2128.392957][T22522] br0: port 1(dummy0) entered disabled state
[ 2128.393309][T22522] dummy0: entered allmulticast mode
[ 2128.394497][T22522] dummy0: entered promiscuous mode
[ 2128.434035][T22523] br0: port 1(dummy0) entered blocking state
[ 2128.434450][T22523] br0: port 1(dummy0) entered forwarding state
[ 2130.908877][   T12] dummy0: left allmulticast mode
[ 2130.910148][   T12] dummy0: left promiscuous mode
[ 2130.910582][   T12] br0: port 1(dummy0) entered disabled state