Technology

FastSoft technology accelerates dynamic web sites, streaming video, virtualized desktops, and file downloads by combining intelligent window sizing and smart congestion control to reduce the effects of latency. Our patented core technology, FastTCP®, was developed at the California Institute of Technology and consistently outperforms other TCP stacks.

How It Works

Three algorithms work together

FastTCP® dynamically adjusts data transfer rates to match congestion levels
FastStart™ intelligently accelerates TCP Slow-start based on delay-jitter of the connection
HyperBurst™ dynamically adjusts receiver windows to maximize throughput

Dynamic Window Sizing

FastStart

  • Larger initial window size
  • Based on client RWND, RTT, window smoothing algorithm

HyperBurst

  • Larger window than RWND during file transfer
  • Based on client RWND, RTT, RTT jitter, smoothing algorithm
  • Only used when delay-bandwidth product greater than RWND

Intelligent Congestion Control

FastTCP

  • Measures RTT on every packet
  • Prevents packet loss
  • Based on reducing window as delay increases
  • Recovers quickly from packet loss
  • Determined by delay metric

 

The Need for Speed

FastSoft technology increases productivity by utilizing bandwidth more efficiently
It does this by reorganizing data flows so they finish faster (see Bandwidth Utilization Comparison chart). FastSoft technology is not designed to reduce bandwidth usage and costs, but rather to increase performance of any application running over TCP.

Website delays negatively impact user behavior
Amazon has revealed that a 1/10th second delay in its web page download times results in a one-percent drop in sales. Similarly, Google found that a 1/2 second delay in its web page download times results in a 20% traffic decrease.

Web users respond to speed
However you measure productivity – whether it’s website revenue, employee output, or speed of data transfer – FastSoft helps you get the job done faster. For example, an ad-supported website that does 75,000 daily click-throughs can do 300,000 with FastSoft in the same period. A global production operation – whether it’s Hollywood post-production, automotive engineering, or software outsourcing – can increase file transfers from 30 to 120 per day with FastSoft.

FastTCP®

The predominate Internet transmission protocol, Transmission Control Protocol (TCP), carries more than 90% of all Internet traffic worldwide. But as traffic continues to grow exponentially in both volume and in size, TCP is causing severe bottlenecks, particularly for quality-sensitive content like video and delay-sensitive activities like remote desktop and web downloads.

FastSoft’s patented FastTCP technique updates TCP, adding intelligence that makes the throttling of traffic more efficient. The result: accelerated transfer speeds of 30% to 500% and higher – from a centralized solution requiring no technology at the endpoints.

By increasing transfer speeds without requiring additional bandwidth or POPs around the world, FastTCP makes the Internet highly cost-effective for delivering video and other digital content on demand, anywhere in the world. No technology is required on the receiving side whatsoever, nor is any tweaking of content, servers or applications needed where content resides.

FastTCP is the only centralized, single-sided acceleration approach that speeds content across the first and last mile as well as through the cloud.

This groundbreaking technology has been used to set world records at the Supercomputing Bandwidth Challenge for the past four years. In 2005, FastTCP™ achieved a sustained throughput of 101 Gbps, fast enough to transmit the entire contents of the Library of Congress in 15 minutes.