Avaya 4600 Series IP Telephones Anwendungshinweis PDF herunterladen (Seite 2)

AL; Reviewed:

SPOC 2/21/2006

Solution & Interoperability Test Lab Application Notes

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ExpandAccltor.doc

1. Introduction

These Application Notes describe a compliance-tested solution comprised of Avaya Communication

Managers, Avaya IP Telephones, Avaya Security Gateways and Expand Networks Accelerators.

The Accelerator is a WAN optimization appliance that employs techniques such as compression,

QoS, Bandwidth management, and TCP acceleration to increase capacity, applications performance

and throughput, while maintaining proper prioritization for Voice over IP (VoIP) traffic going over

Wide Area Network (WAN) links. Typically placed between the WAN router and LAN, the Expand

Network Accelerator establishes a virtual connection between its peers and manages network traffic

flow based on user-defined rules and priorities. The Expand Networks Accelerator can also set aside

explicit bandwidth for VoIP traffic within the WAN link capacity to maintain the proper Quality of

Service.

1.1. Configuration

Figure 1 illustrates the configuration used in these Application Notes. The extension numbers

beginning with the number 4 are registered with Avaya Communication Manager in the Main Site

and extension numbers beginning with the number 5 are registered with Avaya Communication

Manager at the Branch Site. A 768K PPP link simulating a WAN link connects the Main and

Branch Site together while the Avaya Security Gateways provide the VPN tunnel over this link. An

H.323 trunk routes telephone calls between the two Avaya Media Gateways.

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Avaya 4600 Series IP Telephones Anwendungshinweis Seite 2