[ 2120.668618][T17795] br0: port 1(dummy0) entered blocking state
[ 2120.668807][T17795] br0: port 1(dummy0) entered disabled state
[ 2120.668966][T17795] dummy0: entered allmulticast mode
[ 2120.675586][T17795] dummy0: entered promiscuous mode
[ 2120.700623][T17796] br0: port 1(dummy0) entered blocking state
[ 2120.700796][T17796] br0: port 1(dummy0) entered forwarding state
[ 2122.663992][   T68] dummy0: left allmulticast mode
[ 2122.664953][   T68] dummy0: left promiscuous mode
[ 2122.665187][   T68] br0: port 1(dummy0) entered disabled state