I like to share this with you guys, might be interesting enough.
Riverbed's Steelhead swims through WAN bottlenecks
IT managers are always being asked to do more with less. When it comes to WAN links, less is sometimes all you have to work with. The Steelhead 2000 WAN acceleration appliance from Riverbed Technology is part file cache, part proxy, and part TCP optimization, providing a unique and extremely effective way of reducing the time spent transferring files from one office to another. In addition, the Steelhead is easy to install, and it does not require any LAN/WAN re-engineering. But like other WAN acceleration appliances, a unit must be installed on each end of your WAN link.
full article at:
http://www.infoworld.com/article/04/...iverbed_1.html