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Adaptive Private Networking

Talari Networks' Adaptive Private Networking technology for WAN Virtualization combines diverse, abundant, affordable IP bandwidth sources, applying a RAID-like approach to WAN connections to solve the reliability and predictability issues associated with shared-IP networks. The result? Next generation Enterprise WANs without compromise:

30 to 100x the bandwidth per dollar
Monthly WAN costs reduced by 40 to 90%
Greater reliability and predictability than today's single provider Frame Relay or MPLS WANs

The Talari Networks Solution

By solving the reliability and predictability issues associated with shared-IP networks, in general, and the public Internet in particular, our Adaptive Private Networking technology for WAN Virtualization enables Enterprises to gain a step-function improvement in their WAN.

In the same way that RAID (Redundant Array of Inexpensive Disks) revolutionized high-end data storage, APN is revolutionizing corporate WANs. Talari applies to WAN connections a unique combination of RAID-like methods and overlay networking techniques, like those used by services such as Skype or Vonage in delivering voice over the public Internet. By leveraging network bandwidth from multiple sources - including both high-speed Internet connections at central locations and broadband connections (DSL, cable where available) at branch locations - This WAN Virtualization technology allows businesses for the first time to take advantage of the economics of broadband and the public Internet without sacrificing business quality reliability and availability.

No one today builds monolithic, proprietary, single-disk storage solutions; they leverage commodity PC hard disk technology and use RAID technology to get greater capacity and performance, lower cost, and higher reliability. With Adaptive Private Networking, enterprise managers can take the same approach to building corporate WANs. No longer must businesses purchase overpriced, "overengineered" network services from a single telecom provider. APN delivers more bandwidth, lower monthly WAN costs and greater network reliability than the best single Frame Relay or MPLS network can provide.

APN Technology Overview

WAN Virtualization is a revolutionary approach to the issues surrounding building Enterprise WANs. Unlike today's "WAN Optimization" approaches, which presume as immutable that bandwidth must be scarce and expensive and thus focus on compression (to save bits) and further attempt to optimize each application for the network, APN optimizes a more-affordable, higher-bandwidth network fabric for all applications.

APN performs dynamic, real-time, per-packet traffic engineering, and uses RAID-like techniques and proprietary end-to-end algorithms to deliver end-to-end reliability; protected application performance for TCP-based applications; and ultra-reliable, cost effective support for real-time application traffic like VoIP and videoconferencing.

It provides multi-path multiplexing for both aggregating bandwidth and delivering end-to-end reliability, dynamically engineering around network trouble - not just outright link failure, but high packet loss or excess latency - as it occurs. It adapts to such "network events" within ~250 milliseconds for domestic connections, or ~500-600 milliseconds even for longer-distance international connections. This sub-second response is more than fast enough to handle any IP application that can run on an IP WAN.

The intelligent actions and sub-second reaction in the face of packet loss provide predictable, protected application performance for any TCP-based application. APN makes the WAN look to each TCP application as if it were a zero-packet-loss WAN with the occasional bout of jitter-something TCP and TCP-based applications are designed to expect and accommodate without incident.

For real-time applications like VoIP and videoconferencing, APN uniquely delivers ultra-reliable, cost-effective support. It routinely chooses network paths with the least packet loss and lowest jitter for such high-priority real-time traffic, and switches with sub-second response to a better path in the face of high loss or jitter. Where bandwidth availability allows, APN provides still further protection by replicating real-time traffic flows along a second path, suppressing duplicates at the receiving end, delivering "platinum quality" connectivity.

APN's sophisticated decision making is powered by two key component technologies. Talari's Multipath Network Spectrometry is the key enabling technology providing the rich real-time information that lets APN work its magic. Resilient Multipath Connectivity technology in turn delivers end-to-end reliability and protected application performance, for both TCP-based apps and real-time applications like VoIP and videoconferencing.

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