[ 1940.530332][ T9605] br0: port 1(dummy0) entered blocking state
[ 1940.530562][ T9605] br0: port 1(dummy0) entered disabled state
[ 1940.530801][ T9605] dummy0: entered allmulticast mode
[ 1940.531722][ T9605] dummy0: entered promiscuous mode
[ 1940.559494][ T9606] br0: port 1(dummy0) entered blocking state
[ 1940.559791][ T9606] br0: port 1(dummy0) entered forwarding state
[ 1942.436569][   T70] dummy0: left allmulticast mode
[ 1942.437752][   T70] dummy0: left promiscuous mode
[ 1942.438005][   T70] br0: port 1(dummy0) entered disabled state