Enterprise: Citrix XenDesktop/XenApp

Make the Most of Your Multi-Site Citrix VDI

Citrix XenDesktop and XenApp send constant screen updates and mouse movements, making them sensitive to latency and jitter over the WAN. In addition to compressing VDI traffic, Silver Peak takes a holistic approach to VDI optimization by:

The result: With Silver Peak, VDI performs as well over a WAN as it does within a single location or campus.


  • Silver Peak’s WAN optimization solution helps enterprises reap the rewards of virtualization by overcoming network challenges that impact the performance of these applications across the WAN. More specifically, Silver Peak addresses latency, packet loss, and bandwidth challenges that cause virtual applications (for example, Citrix XenApp) and Virtual Desktop Infrastructures (for example, Citrix XenDesktop, Microsoft Desktop Virtualization, Sun Ray, and VMware VDI) to be unresponsive and/or unreliable across the WAN. 
  • Application virtualization (for example, Citrix XenApp) and Virtual Desktop Infrastructures (for example, Citrix XenDesktop, Microsoft Desktop Virtualization, and VMware VDI) deliver enormous management and costs savings throughout an enterprise. However, the benefits of virtualization can easily be lost if application performance hampers end user productivity, as often happens when virtual applications and desktops are delivered across a Wide Area Network (WAN)
  • Architecture design firm dwp has adopted a WAN optimisation system from Silver Peak to accelerate file transfers and reduce infrastructure costs by 80 percent. The platform, Virtual Acceleration Open Architecture (VXOA), is now able to speed up transfers of AutoCAD-based files from days to minutes. According to dwp, it now takes only a few minutes to transfer 1 GB of data across the distributed enterprise, which includes 12 locations across Asia Pacific and the Middle East. There was an urgent need for dwp to lower its operating expenditure (OPEX) costs, which soared dramatically due to an increase in bandwidth costs necessitated by poor network connectivity between its data centre located in Bangkok and the various branch offices. In addition, link costs and latency were the highest between Bahrain and Bangkok.
  • Networking can make or break a virtual desktop infrastructure (VDI) roll-out, as one business found out. The company, a global law firm, operates a multiprotocol label switching (MPLS) wide area network (WAN) between its three global sites, supporting 7,000 staff. Approximately 75% of traffic on the network was Citrix, 20% was taken by print services, while the remainder was used by web and authentication protocols. Sometimes the Citrix client on users' desktops would not keep up with their typing due to congestion on the WAN. Given that the cost of upgrading links in certain regions can be around £250,000 per annum, the law firm could not justify buying more network capacity. Deploying quality of service (QoS) to prioritise Citrix traffic could work, but at the cost of slower print traffic. 
  • Toshiba America Electronic Components Inc. turned to Silver Peak Systems Inc. wide area network (WAN) optimization appliances when it needed help moving large engineering files coast to coast for disaster recovery, choosing the startup over larger and better known competitors. Toshiba America's director of information systems, Leon Roberge, said Silver Peak's NX WAN acceleration devices outperformed Riverbed Technology Inc. in his evaluation, which surprised him considering Riverbed's reputation. 
  • Cox Castle & Nicholson Optimizes Citrix VDI Environment with Silver Peak