Nortel Networks NN43001-563 - Manual (Page 46)

46 System description
• the Management MAC address (motherboard Ethernet address)
• the Node IP address
• the individual card IP addresses and card TNs for all IP trunk cards in
the IP Trunk 3.01 (and later) node
• D-Channel number, card density and First CHID
In the event of a Backup Leader failure, the Leader card generates an
SNMP trap to the TM 3.1 management station, indicating this failure.
If the Active Leader and Backup Leader are reset, removed, or disconnected
from the LAN at the same time, the entire IP Trunk 3.01 (and later) node is
put out-of-service. If this situation occurs, manual intervention is required to
recover the system.
Active Leader/Backup Leader and DCHIP card interaction
The Active Leader checks the status of the DCHIP card. The DCHIP card
must constantly inform the Leader of its DCH status and its card status.
When a DCHIP trunk card failure occurs, the associated trunks’ states
appear busy to the Meridian 1/CS 1000M, so the trunks will not be used for
calls. This blocks the normal software action of reverting to analog signaling
when an ISL DCH fails. If either end’s DCHIP or DCH connection fails, ISDN
protocol features across the IP network do not function. When a DCHIP
card fails, its associated Followers are also removed from service.
In the case of a DCH failure, established calls are maintained; however, no
new calls can be made. Calls in a transient state are dropped.
ITG-Pentium 24-port trunk card (NT0961AA)
The ITG-Pentium 24-port trunk card was introduced as part of ITG Trunk
2.0. During the installation of the IP Trunk 3.01 loadware, the application
on the ITG-P 24-port card(s) (ITG-P) must be upgraded. It is essential to
ensure the latest software is loaded on the ITG-P card(s).
Description
The NT0961AA ITG-Pentium 24-port trunk card plugs into an Intelligent
Peripheral Equipment (IPE) shelf. Each ITG-Pentium 24-port trunk card
occupies two slots. ITG-Pentium 24-port trunk cards have a ELAN network
interface (10BaseT) and a TLAN network interface (10/100BaseT) on
the I/O panel. The ITG-Pentium 24-port trunk card has a DIN-8 serial
maintenance port connection on the faceplate and an alternative connection
to the same serial port on the I/O backplane.
Do not connect two maintenance terminals to both the faceplate and I/O
panel serial maintenance port connections at the same time.
Nortel Communication Server 1000
IP Trunk Fundamentals
NN43001-563 01.01 Standard
Release 5.0 30 May 2007
Copyright © 2007, Nortel Networks
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