Avaya S8100 Series Manual page 1042

Converting PNs to IP-PNC
This chapter includes modules that describe how to convert the following three fiber-PNC
configurations to full or partial IP-PNC configurations:
Direct connect
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In this configuration, one PN, the "control PN," is IPSI-connected to the control network, and
one or two additional PNs are fiber-connected to the control PN. The call controller can be
an S8500 Media Server or an S8700-series Media Server. The fiber connections are
between the expansion interface (EI) circuit packs (TN570) in the PNs.
Center Stage Switch (CSS)
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In this configuration, all PNs are fiber-connected through the CSS and one or more PNs are
IPSI-connected to the control network. The call controller is an S8700- series media server.
The fiber connections are between the switch node interface (SNI) circuit packs (TN573)
and the expansion interface (EI) circuit packs (TN570). The SNI circuit packs reside in a
switch node carrier. The EI circuit packs reside in a PN. The fiber can also connect SNIs in
two switch-node carriers.
Asynchronous Transmission Mode (ATM)
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In this configuration, all PNs are fiber-connected through the ATM switch, and one or more
PNs are IPSI-connected to the control network. The call controller is an S8700 series media
server. The fiber connections are between the ATM switch and the TN2305B or TN2306B
ATM expansion interface circuit packs in the PNs.
The conversion procedures in this chapter apply to individual PNs in a communications system
that is composed of one or more PNs. In the final converted system, the PNs can be either
100% IP-PNC or a mixture of fiber-PNC and IP-PNC.
Integrating IP-PNC PNs with fiber-PNC configurations
Starting with Communication Manager release 3.0, the system allows configurations that mix
IP-PNC port networks
direct-connected PNs. Both fiber-PNC and IP-PNC PNs can have either single or duplicated
control networks. Only the fiber-PNC PNs can have duplicated bearer networks.
A Communication Manager configuration can contain one of the following port network
connectivity (PNC) combinations:
IP-PNC and direct-connect
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IP-PNC and CSS
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IP-PNC and ATM
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1042 Upgrading, Migrating, and Converting Media Servers and Gateways
(PNs) with existing fiber-connected CSSs, ATM networks, and