Avaya 555-245-600 manual Migration from Definity Server R to S8700 fiber-PNC

Evolution from circuit-switched to IP

With the S8700 fiber-PNC solution, Avaya is delivering a high-capacity server and a migration path from DEFINITY. The S8700-series Server uses an industry-standard Linux operating system on an industry-standard server, which enables all endpoints to use Communication Manager. This solution allows customers to migrate to IP Telephony and to a higher performance processor without sacrificing the reliability of the G3r platform.

There are three stages to upgrading from a DEFINITY G3r to an Avaya Communication Manager IP PBX:

1.Replace the G3r processor with industry-standard S8700-series Servers.

2.Add IP circuit packs (C-LAN and Media Processor board) to support IP endpoints.

3.Consolidate multiple systems into a single system to simplify administration. Support network or processor failure conditions with LSPs deployed at remote sites.

Steps 1 and 2 can be reversed. The next five diagrams show the migration from circuit-switched DEFINITY to an IP-enabled S8700 fiber-PNC system with server consolidation and LSP survivability at a remote site.

Migration from DEFINITY

Server R to S8700 fiber-PNC

Phase 1: Processor replacement

This section explains how an existing non-IP Avaya Communication Manager PBX can evolve to an IP Telephony-based solution. We will examine the case of an existing system that is based on the traditional PPN/EPN architecture, which will be applicable to all the G3 platforms.

When designing S8700 fiber-PNC systems, there are two options for setting up the call control network. The control network can be set up on the enterprise LAN or on a private network that is isolated from the enterprise LAN. See Voice quality network requirements for more information on setting up an IP network that can support IP Telephony.

The S8700-series Server controls Media Gateways in a different manner than DEFINITY controlled Port Networks. With DEFINITY, the control path signaling shared the same transport media as the bearer channels. In a fiber-PNC system, call control signaling is established from the S8700-series Server over an Ethernet connection to the TN2312BP IP Server Interface (IPSI) in the IPSI-connected Media Gateway. Non-IPSI connected Port Networks get their control information from the servers through the Center Stage Switch to one of the Port Networks that does contain an IPSI. An IPSI can support up to five Port Networks.

120 Avaya Application Solutions IP Telephony Deployment Guide