For many companies, the problems with applications and WANs are described as “bandwidth problems”. While a lack of bandwidth is almost always a factor with a WAN, it isn’t the only factor.
Nevertheless, some companies are primarily interested in removing traffic from the WAN in order to avoid a bandwidth upgrade, to reduce their bandwidth provisioning, or to enable other applications (like VoIP or Citrix traffic) to perform better by allocating them more bandwidth.
To reduce the need for more bandwidth, Riverbed’s SDR algorithms store all WAN traffic, in a proprietary form, on disks inside Steelhead appliances on both sides of the WAN link. Thereafter, the Steelhead intercepts any TCP traffic going out across the network, to see if any of that data has been across the network before. If any of it has been sent by any application, then only the new data is sent, along with references to the existing data.
Typically, this approach reduces corporate WAN traffic by 60% to 95% over time; single transactions can easily see compression ratios of 500:1. Obviously, the amount of redundant data that can be removed depends on the repetitiveness of your particular workload. For industries where work is highly collaborative and iterative, Riverbed can significantly improve WAN performance. This is particularly true when large CAD files, PDFs, graphics files, legal contracts, PowerPoint files, large documents and spreadsheets are shared by teams of people who edit and append data to existing files, and then share them again.
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If you would like to discuss how Riverbed Steelhead products can benefit your organisation please contact a member of the Skye Consult team on 01932 232345