Mgc Network Connections - Nortel 1000 Branch of?ce Installation And Commissioning Manual

40 Overview

MGC Network Connections

In the following diagrams, two connections are shown to the external data
equipment for the dual-homing feature, distributed and nondistributed.
Nondistributed means that both Ethernet ports (TLAN or ELAN) of the
dual-homing feature connect to a single Layer 2 switch, thus providing a
single point of failure if that switch goes out of service.
Distributed means that the two Ethernet ports (TLAN or ELAN) of the
dual-homing feature connect to separate Layer 2 switches, to provide
another level of redundancy and no single point of failure with a Layer 2
switch. Nortel recommends distributed connections; support is available for
nondistributed connections if the cost of the additional data networking
equipment is an issue.
The CE and CT ports on the MGC are the only embedded Ethernet ports
that allow a direct connection to another device, and the only card supported
for this direct connection is the CP-PM Call Server. For a cascading
configuration, you can use the 1E and 1T ports can be used to connect
to another MGC card.
The figure below shows the supported configuration for a single server
configuration without redundant network configurations. This is the standard
configuration of a cost effective single server configuration. A single server
supports multiple MGCs using external networking equipment.
Figure 5
Single server port network connections (no dual-homing)
Copyright © 2007, Nortel Networks
.
Nortel Communication Server 1000
Branch Office Installation and Commissioning
NN43001-314 01.02 Standard
Release 5.0 20 June 2007