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Avaya Application Solutions platforms
80 Avaya Application Solutions IP Telephony Deployment Guide
 
Because the inter port network TDM traffic flow is supported by a Center Stage Switch (CSS) or 
an Asynchronous Transfer Mode (ATM) switch using fiber-optic cables, this configuration is 
called fiber-PNC. The call control traffic between the server and the gateways is usually, but not 
necessarily, over a private dedicated Ethernet network that is provided by Avaya.
This solution is scalable to up to 44 port networks (PNs) through CSS configuration, and up to 
64 PNs in an ATM configuration. The fiber-PNC solution has three reliability options:
Standard. Duplicated S8700-series Servers with memory shadowing, two uninterruptible 
power supplies (UPS), one Layer-2 Ethernet switch, and one IPSI in each IPSI-connected 
PN.
High. Standard reliability, plus a second Layer-2 Ethernet switch and a second IPSI in 
each IPSI-connected PN. This design provides for a second redundant call control 
network.
Critical. High reliability plus duplication of the bearer network.
S8720 and S8730 Servers 
The Avaya S8720 and S8730 Server Platforms are high-performance servers with AMD 
Opteron processors running Avaya Communication Manager software. The S8720 is a 
replacement server for the S8700 and S8710 Servers and the S8730 is a replacement for the 
S8720 Server. The S8720 and S8730 support a software duplication option that eliminates the 
need for the DAJ1 and DAL1 or DAL2 hardware-assist duplication cards.
The S8720 and S8730 systems support the Avaya MCC1, SCC1, CMC1, and G650 Media 
Gateways. The Avaya G700, G450, G350, G250, and G150 Media Gateways are also 
supported if there is a TCP/IP connection between the media gateway and a C-LAN circuit pack 
located in a MCC1, SCC1, CMC1, or G650 Media Gateway. The S8720 and S8730 have the 
capacity to support up to 64 port networks.
The S8720 Server is available in two configurations:
Standard configuration.
Extra large configuration that provides higher capacities.
The S8730 Server is available in a single extra large configuration with 4 GB of RAM and RAID 
controllers and an optional duplicated hard disk. 
S8700-series Servers
on page 34 summarizes the performance and capacity specifications of the Avaya 
S8700-series Servers.
The Avaya S8700-series Server platform always consists of two servers running on a Linux 
operating system. In S8700-series fiber-PNC and IP-PNC configurations, the S8700-series 
Server provides the main feature and management processing capabilities of the system. The 
server is connected to other system and external components primarily through IP networks.