[ 2293.497435][ T5379] br0: port 1(dummy0) entered blocking state
[ 2293.497740][ T5379] br0: port 1(dummy0) entered disabled state
[ 2293.498012][ T5379] dummy0: entered allmulticast mode
[ 2293.499127][ T5379] dummy0: entered promiscuous mode
[ 2293.526428][ T5380] br0: port 1(dummy0) entered blocking state
[ 2293.526947][ T5380] br0: port 1(dummy0) entered forwarding state
[ 2296.005488][   T12] dummy0: left allmulticast mode
[ 2296.006569][   T12] dummy0: left promiscuous mode
[ 2296.006944][   T12] br0: port 1(dummy0) entered disabled state