Accelerate Telnet Over Distance

Don’t let sluggish and unreliable WAN connections slow Telnet. Silver Peak improves Telnet performance across distance. With Silver Peak, "telnetting" to a work location can be effective even over long distances or congested networks.

Telnet provides an interactive, text-based communication that is commonly used by administrators to log into remote devices and servers. While Telnet may perform just fine across local networks, across the wide area network (WAN) Telnet sessions can become unresponsive while logins may take too long.

Telnet is not the problem; it’s the underlying wide area network (WAN). The throughput of the session is limited by the delay on the network, which results from numerous factors including distance, routing policies, and peering practices. The effects of network congestion commonly found on private network services and especially the Internet  only exacerbate the issue. Purchasing more bandwidth does not help the problem and only serves to increase operational expenditures.

Silver Peak eliminates Telnet’s challenges by fixing the network’s underlying problems. Silver Peak’s algorithms minimize the amount of bandwidth required by Telnet, overcome latency by improving protocol efficiencies, and compensate for the effects of congestion. The result: a faster, more responsive Telnet session. More specifically, Silver Peak solves the following network challenges:

  • Bandwidth  – Silver Peak byte-level deduplication removes redundant Telnet data from the WAN. The first time Telnet sends data it is fingerprinted and compressed by Silver Peak. Subsequent requests are fulfilled by the local Silver Peak instance.  
  • Latency – Silver Peak mitigates latency enabling Telnet to operate more efficiently over distance.  TCP Acceleration includes windows scaling, selective acknowledgements, and HighSpeed TCP. Latency is also reduced through packet coalescing, which re-packages multiple smaller packets into a single larger one, and through Dynamic Path Control, which selects the fastest path to a remote location.
  • Congestion – Silver Peak makes Telnet performance more predictable across congested WANs. Lost packets are reconstituted in real-time at the far end of a WAN link, avoiding delays that come with multiple round-trip retransmissions. Out-of-order packets are resequenced, avoiding retransmission and processing delays that occur when packets arrive out-of-order. Dynamic Path Control can select the path with the least loss to the destination.

Silver Peak protects Telnet data in-flight between locations with an Accelerated IPSec virtual private network (VPN) running AES-256, the enterprise standard for data encryption. Data-at-rest within Silver Peak instances is also encrypted with AES. End-to-end encryption is provided by SSL/TLS.

Silver Peak offers the most scalable and cost-effective data acceleration software for connecting data centers, remote offices and the cloud. Download and deploy it yourself in just 20 minutes or contact us to see how Silver Peak can help your team.

Featured Products

  • VX WAN Optimization Software

    VX Virtual WAN Optimization Software

    Silver Peak VX WAN optimization software supports the full list of Silver Peak WAN optimization features. Use Silver Peak VX software to build a Silver Peak Unity WAN fabric for integrating your enterprise WAN, the Internet and the cloud, and to optimize every SaaS application.

  • NX WAN Optimization Appliances

    NX Appliances for Application Acceleration and Replication Acceleration

    Silver Peak NX WAN optimization appliances are the industry's highest-performance WAN optimization solutions, delivering three-times the WAN performance and capacity of the nearest competing products. Silver Peak Software for Life program means you can convert NX appliances to VX software at anytime for free.

  • Unity Architecture: Building an SD-WAN Fabric

    Silver Peak Unity is the premier solution for broadband and hybrid WANs.


  • Increase productivity by making Telnet faster and more reliable.
  • Reduce network costs by eliminating extraneous Telnet data from the WAN or VPN.
  • Extend the reach of Telnet deployments by selecting the fastest, least congested path for Telnet while eliminating adverse effects of dropped and out-of-order packets.


  • Accelrys Optimizes VDI and Replication over Distance
  • Cox, Castle & Nicholson LLP is a real estate law firm representing organizations and individuals in all aspects of real estate, finance, and construction. The firm has more than 120 lawyers located in offices in Los Angeles, Irvine, and San Francisco, California, and is one of the largest real estate law firms in the United States. Cox, Castle’s primary data center is located in Los Angeles, California, with corporate connectivity supported by a 45 megabit-per-second (Mbps) multiprotocol label switching (MPLS) wide area network (WAN).
  • To keep its virtual desktops functioning at high performance during its peak season, tax preparation firm SurePrep decided virtual WAN optimization would be the best way to share resources in service centers across the globe. SurePrep’s IT needs are unusual, because its resources are dedicated to making everything run flawlessly during a short period when tax season is in full swing. “Our peak season is five days a year,” said Will Hosek, SurePrep’s vice president of information technology. Hosek said SurePrep goes from about 50 servers during most of the year to more than 100 during tax season. The Newport Beach, Calif., company has a 200-seat service center in Irvine, Calif., and another 200-seat center in Mumbai, India. Both service centers run virtual desktops with Wyse Technology Inc.’s Remote Desktop Protocol (RDP)-based thin clients.
  • 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)
  • 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.