We have an MPLS network with Site A having a 22MB and Site B a 3MB connection to the cloud. If a large ftp is initiated from Site A (5 GB) to Site B will Site B be able to throttle back the file transfer and not congest the WAN interface. Someone did this and Site B went from a 40ms response to a 700ms response. We do have Qos setup just for voice but even then it was very sluggish. Both routers are new Cisco 3825's
I have this problem too.