Connectivity; Connectivity When Sending Voice Bearer Over Atm Or Css; Port Networks; Css Network - Avaya S8700 Overview Manual

Overview

Connectivity

Connectivity
Connectivity for the S8700 Media Server depends on the method by which the voice bearer is being
transmitted.
Connectivity when sending voice bearer over
ATM or CSS

Port Networks

A new installation consists of the G650 Media Gateways for all port networks. The MCC1 Media
Gateway or the SCC1 Media Gateway are used for housing the switch node carrier(s) needed for center
stage switch, for migrating configurations, and for configurations experiencing growth. The IPSI extends
Ethernet control by connecting the S8700 Media Server processor to the PNs.

CSS Network

The CSS is a connection hub that provides PN communication. A CSS can be used when more then three
port networks are needed. Often the CSS is incorporated into smaller configurations to allow for growth.
The CSS consists of from one to three switch nodes (SN). SNs are composed of one or two switch node
carriers, depending on whether the solution is being duplicated for critical reliability. PN expansion
depends on internal SN-to-SN traffic, according to the following guidelines:
•
One SN expands from 1 to up to 15 PNs.
•
Two SNs expands to up to 29 PNs.
•
Three SNs expands to up to 44 PNs.

ATM Network

The Asynchronous Transfer Mode (ATM) switch is a replacement option for the CSS or for the direct-
connect switch. Several Avaya ATM switch types can provide port network connectivity. Non-Avaya
ATM switches that comply with the ATM standards that are set by the European Union can also provide
port network connectivity.
When the voice bearer is sent over ATM, ATM port-network connectivity (ATM-PNC) allows any ATM
switch or ATM network that complies with specified standards and capacities to serve as the means to
connect to the PN. In this type of configuration, the ATM switch or network replaces the CSS. ATM-PNC
is used to connect port networks within a single switch. The (WAN) spare processor is not supported.
Connectivity when sending voice bearer over
IP
Sending the voice bearer over IP uses IP connectivity between PNs. An existing VOIP-ready IP
infrastructure can be used. This solution saves customers the cost of building a separate telephony
network.
24 Overview for S8700 Media Server
November 2003