Reliability When Sending Voice Bearer Over Atm Or Css; Duplex Reliability When Sending Voice Bearer Over Css Or Atm - Avaya S8700 Overview Manual

Overview
Reliability
Reliability when sending voice bearer over
ATM or CSS
The following are supported with the S8700 Media Server when sending voice bearer over ATM or CSS:
•
Duplex reliability
•
High reliability
•
Critical reliability
Duplex Reliability when sending voice bearer
over CSS or ATM
The duplex-reliability option is the most basic option. A duplex-reliability configuration consists of the
following:
•
Two S8700 Media Servers
•
One Ethernet switch
•
One UPS unit for each S8700 Media Server. The use of two UPS units ensures that a single UPS
failure or repair operation will not disable the system.
•
One IPSI in each IPSI-connected port network.
Voice and data bearer traffic between port networks is carried on a simplex network that is made up of
one Expansion Interface (EI) in each port network. Avaya offers different types of EI circuit packs, one
for CSS, one for ATM. The EIs are cabled with lightguide fiber to either the Center Stage Switch (CSS)
or an Asynchronous Transfer Mode (ATM) switch.
See Figure 7, Duplex-reliability configuration when sending voice bearer over CSS or ATM,
for an example of a duplex reliability when sending voice bearer over CSS or ATM.
18 Overview for S8700 Media Server
November 2003
on page 19