Lucent Technologies DEFINITY Enterprise Communications Server Release 8.2 Administration For Network Connectivity Manual

1Administration for Network Connectivity555-233-504 — Issue 1 — April 2000  CID: 77730
1 Networking Overview
This chapter provides background information that will help you understand and use the 
information in the remainder of the book. There are two major sections in this chapter. The first 
section describes how DEFINITY ECS switches can be connected, with a focus on IP connectivity. 
The second section describes IP addressing and subnetting.
DEFINITY Switch Connectivity
This section describes the...

DEFINITY Switch Connectivity 1  Networking Overview
Administration for Network Connectivity
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Networks
When two or more switches are connected via tie trunks, they form a private network. 
There are two basic types of networks for Lucent switches:
•Main-satellite/tributary (MS/T) — A network of switches in which a main switch 
is fully functional and provides attendants and CO trunks for connected satellite 
switches. Tributary switches are connected to the...

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1  Networking Overview
TCP/IP signaling connections were introduced with DEFINITY Release 7. Starting 
with R7, X.25 was no longer sold with new systems. R7 and later new systems ship 
with only TCP/IP connections or ISDN-PRI for DCS signaling. However, existing 
systems with X.25 and/or ISDN-PRI DCS signaling can be upgraded to the latest 
version and keep those signaling links, or a new...

DEFINITY Switch Connectivity 1  Networking Overview
Administration for Network Connectivity
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Figure 1. Components of Switch Connectivity
What do the 
components do?
The function of each circuit pack shown in Figure 1 is described below.
Processor
The processor board is the main control element in handling the call. This is the 
UN332B for the r model, the TN 790B for the si model, and the TN798B for the csi 
model.
PGATE (r only)
On the r model, the PGATE...

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1  Networking Overview
C-LAN
The C-LAN circuit pack (TN799B) enables signaling data to be transmitted via the 
TCP/IP protocols across a LAN or WAN. Signaling types include call setup and 
teardown, registration of IP softphones, TSCs, QSIG and DCS signaling.
The C-LAN circuit pack provides the data link interface between the switch processor 
and the transmission facilities. C-LAN...

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PACCON (si only)
The Packet Controller (PACCON) board (TN778) is replaced by the NetPkt board 
(TN794) starting in R7. For pre-R7 systems, PACCON provides an interface to the 
processor for D-Channel signaling over the packet bus.
The following table gives a summary of the different types of call connections and 
how the voice and signaling data are transmitted...

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For IP Trunk connections, the voice data is sent over IP facilities as RTP datagrams 
using the IP Interface assembly (TN802 or TN802B) — each packet can potentially 
take a different route through the network. The call and DCS signaling data are sent 
as datagram packets over an IP network using the C-LAN interface. The R7 type of IP 
trunk (IP Interface operating...

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R8si modelThe following table shows the hardware required for an upgrade to an R8si. 
R8csi modelThe following table shows the hardware required for an upgrade to an R8csi. Connection Type Hardware Required
BX.25 (Existing 
systems only)
•PI (TN765)
•NetPkt (TN794) — replaces the NetCon (TN777B) and the 
PACCON (TN778) circuit packs
•
Upgraded processor (TN790B)
•In...

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DEFINITY Connection types and capacities
This subsection gives an overview of the types of connections that can be set up with DEFINITY switches and 
adjuncts and capacities for some connectivity parameters. 
Types of connectionsThis table lists the types of connections possible with each DEFINITY model and 
adjunct. 
If an R8 switch is connected to two endpoints by...

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DEFINITY CapacitiesThe following table shows maximum allowable values and ranges for several 
connectivity parameters for DEFINITY ECS Release 8. Note that some or all maxima 
may not be achievable, depending on specific switch/traffic configurations.
csi si r
Circuit Packs
*
* Circuit pack abbreviations:
C-LAN: Control LAN (TN799B)
NetPkt: Network Control/Packet...