?Network latency was just killing some of our WAN applications,? noted John Yeaton, a network engineer with the Network Planning Department. He went on to describe the issues they were encountering. ?We have two data centers, primary and backup. We have over 200 locations globally, so a large percentage of our users are accessing our applications remotely over the WAN. People trying to use our applications from Shanghai were experiencing up to 300 milliseconds latency. This was slowing our imaging and other large traffic files to a crawl. Chatty traffic was also significantly impacted. The high latency had slowed some of the applications down to a point where it was difficult for people to use them at all.?