[ 1935.915199][ T4078] br0: port 1(dummy0) entered blocking state
[ 1935.915424][ T4078] br0: port 1(dummy0) entered disabled state
[ 1935.915623][ T4078] dummy0: entered allmulticast mode
[ 1935.917066][ T4078] dummy0: entered promiscuous mode
[ 1935.945345][ T4079] br0: port 1(dummy0) entered blocking state
[ 1935.945643][ T4079] br0: port 1(dummy0) entered forwarding state
[ 1937.929218][   T70] dummy0: left allmulticast mode
[ 1937.930361][   T70] dummy0: left promiscuous mode
[ 1937.930579][   T70] br0: port 1(dummy0) entered disabled state