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AcceleNet Technology

AcceleNet Technology

Software-only accelerator using a unique combination of technologies to overcome the inherent problems in last-mile networks for remote and mobile users.

Technologies:
AcceleNet achieves the highest possible performance by using the minimum possible number of roundtrips and the highest possible compression for more enterprise applications than any other system.

AcceleNet Application Accelerator and WAN Optimizer Technologies

Using a unique combination of technologies, AcceleNet makes fast application performance and web browsing from remote locations a reality. Normally, what you would consider doing over the LAN you might think twice about doing over WiFi at the airport or a satellite connection at an Internet café. With AcceleNet, you can be as efficient at home or on the road as you are at the office. A number of technologies make this possible:
  • Patented compression algorithms
  • Application accelerators
  • Network optimizers
  • Network and user transparency

Data Compressors

AcceleNet is designed to deliver large amounts of data over narrowband networks. Patented compression engines decompose and analyze files on-the-fly, so that even the first-time transfer of a file is optimized.
 
AcceleNet employs delta coding to compare new data against previously transmitted data and send only the compressed differences. Your network access is faster with these special features:
  • Large-file compression: identifies and eliminates redundant data - even within a single file
  • Cross-protocol acceleration: downloads a file from a server, and then sends it as an email attachment
  • Bi-directional compression: uses data from a download to compress a subsequent upload and vice versa
  • Secure data storage: optional compression history encryption
  • Shared server history: shares a single instance among all users

Application Accelerators

The software recognizes that many enterprise application protocols are extremely “chatty” in their use of the network, relying on numerous round-trip transfers of small amounts of data to transfer an entire file.
 
One of the worst offenders is accessing corporate file servers using the Microsoft Common Interface File System (CIFS). CIFS file shares and other chatty applications are prone to enormous delays over high-latency links because the latency is multiplied by each trip.
 
AcceleNet achieves the highest possible performance by using the minimum possible number of roundtrips and the highest possible compression for more enterprise applications than any other system:
  • CIFS: Windows file shares, MS Office applications
  • MAPI: Outlook/Exchange messages and attachments
  • HTTP: Web-based applications and internet browsing
  • HTTPS: Secure web applications, such as Outlook Web Access (OWA) and others

WAN Optimizers

Perhaps the greatest advantage AcceleNet brings to remote and mobile acceleration is the recognition of inefficiencies of TCP with broadband, satellite, wireless, and dial-up networks.
 
AcceleNet uses the industry’s only proprietary transport protocol that adapts efficiently and automatically to:
  • timing variations of packet switched wireless networks
  • latency of broadband satellite links
  • noisy WiFi or DSL connections
It delivers the highest possible performance even in the most extreme network conditions.
 
The graph shows that AcceleNet provides 11x faster throughput over native TCP and competitive products when encountering 10% packet loss. In fact, the benefits increase as network conditions degrade resulting in significantly better application response time.
AcceleNet alone supports the difficult demands of the many types of access networks used by today’s enterprise users.

Network and User Transparency

Competitive systems simply do not come close to the configuration advantages and ease of deployment of AcceleNet. The technical superiority of AcceleNet compression engines, application accelerators, and transport optimizers are further enhanced by a network-friendly architecture that minimizes the total cost of ownership:
  • No content server reconfiguration: no modifications to application or file servers
  • No network resource changes: no modifications to routers, switches, or other network devices
  • Out of the critical path: IP network topologies are unaffected and, in the event of a server failure, the only impact is the loss of optimization; in contrast, WAN optimizing gateways that sit on the critical path can result in network outages for the remote users
  • No reconfiguration of client applications: data is redirected transparently; no changes are required to any client-side applications
  • Preservation of desktop security: no requirement to open incoming ports on client firewall or other local security software
  • User transparency: client software requires no user maintenance or local configuration changes and does not modify the appearance of any application
  • Auto-detection of high-speed networks: automatically transitions to an office network when reconnecting to the LAN
 
While acceleration appliances are an option, these devices don’t work for extended network applications because they are costly, require remote support staff, and depend heavily on cached content from multiple users to gain significant compression ratios use TCP, which is inefficient on noisy, bandwidth-constrained networks.

©2012 ViaSat, Inc.