Avaya ESS

ESS failover examples
Issue 1.1 June 2005 35
Example 3: Combined IP connected Port Networks with CSS
or ATM connected Port Networks
In Communication Manager 3.0 and later releases, mixed configurations that combine
IP-connected Port Networks with CSS-connected, or ATM-connected Port Networks are
supported. Additionally, Communication Manager 3.0 and later releases allow media servers to
support both single control networks and duplicated control networks in the same configuration,
as well as single bearer networks and duplicated bearer networks. Simultaneous simplex and
duplex control/bearer connectivity cannot be achieved in traditional CSS and ATM connected
Port Networks.
In Example 3 (see Figure 9
), the customer has an environment where:
● Port Network 1 through 3 are part of a Center Stage Switch
- Port Network 2 connects to the Main server through Port Network 3.
- IPSIs are installed in Port Network 1 and 3.
● Port Networks 4 and 5 use IP connect.