[ 2193.430133][ T2490] br0: port 1(dummy0) entered blocking state
[ 2193.430486][ T2490] br0: port 1(dummy0) entered disabled state
[ 2193.430815][ T2490] dummy0: entered allmulticast mode
[ 2193.431878][ T2490] dummy0: entered promiscuous mode
[ 2193.469236][ T2491] br0: port 1(dummy0) entered blocking state
[ 2193.469546][ T2491] br0: port 1(dummy0) entered forwarding state
[ 2195.922801][   T12] dummy0: left allmulticast mode
[ 2195.924061][   T12] dummy0: left promiscuous mode
[ 2195.924449][   T12] br0: port 1(dummy0) entered disabled state