Card Roles - Nortel 1000 Fundamentals

NTVQ01BB Media Card 32-port trunk cards are factory-programmed with
Release 8.0 firmware. Any firmware feature upgrades are available on the
Nortel website.
Download this firmware from the Customer Support Software page. Go
to www.nortel.com. Follow the links to Customer Support and Software
Distribution or go to

Card roles

The Media Card 32-port trunk card and ITG-Pentium 24-port trunk card can
have one or more of the following roles:
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•
•
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The card roles identify which systems are active systems/standby systems
and which are client systems. The Active Leader has a Node IP address on
the voice interface. This node IP is an alias IP which is added to the original
IP address on the voice interface. Other machines in the network use the
Node IP to keep track of the Active Leader.
Each Meridian 1/CS 1000M is usually configured with the following:
•
•
•
•
In the TM 3.1 ITG application, the term Leader 0 refers to the IP trunk card
initially configured to perform the role of the Active Leader. The term Leader
1 refers to the IP trunk card that is initially configured to perform the role of
Backup Leader. The Active Leader and Backup Leader exchange the Node
IP address when the Active Leader goes out-of-service. The term Active
Leader indicates the Leader 0 or the Leader 1 card that is performing the
Active Leader role.
Leader 0 or Leader 1 can have Active Leader status. On system power-up,
Leader 0 normally functions as the Active Leader and Leader 1 as the
Backup Leader. At other times, the Leader card functions reverse, with
Leader 1 working as the Active Leader and Leader 0 working as the Backup
Leader.
Copyright © 2007, Nortel Networks
.
www.nortel.com/support
Follower
Active Leader
Backup Leader
D-channel IP gateway (DCHIP)
one IP trunk card that acts as an Active Leader
one IP trunk card that acts as a Backup Leader
at least one IP trunk card that provides DCHIP functionality
one or more IP trunk cards identified as Followers
Nortel Communication Server 1000
IP Trunk Fundamentals
NN43001-563 02.01 Standard
Release 5.5 21 December 2007
IP trunk card description 39