Nortel 1000E Maintenance Manual page 97

Table 32 "IP Network fault indicators" (page 97)
for MG 1000T Core-to-Expansion link faults.
Table 32
IP Network fault indicators
Indicator
System messages
Visual indicators
Troubleshooting Core-to-Expansion link connectivity faults
Troubleshooting the Core-to-Expansion 100BaseT link is required when
there is no connection or the connection is dropped between the MG
1000T Core and an MG 1000T Expansion.
Layer 2 and Layer 3 LAN connections for MG 1000T" (page 98)
troubleshooting procedures for Layer 2 and Layer 3 connections.
Use an SDI terminal to perform the following procedures using overlay
commands.
Layer 2 and Layer 3 LAN connections
The MG 1000T platform supports only Layer 2 and Layer 3 switches.
Software routers are not recommended. To troubleshoot for Layer 2 and
Layer 3 LAN connection, follow the steps in
Layer 2 and Layer 3 LAN connections for MG 1000T" (page
Possible indications
CNF messages
DTA, DTC, DTI messages
ERR020, 120, 4060
INI003, 008—012
NWS101, 141, 201—204, 301, 401
OVD021, 022, 023, 031
SYS messages
TDS messages
XCT messages
XMI messages
Red LEDs lit or flashing on circuit cards
Nortel Communication Server 1000
Communication Server 1000E Maintenance
NN43041-700 02.07 22 December 2009
Copyright © 2004-2009 Nortel Networks. All Rights Reserved.
Clearing MG 1000T faults 97
provides fault indicators
Procedure 8 "Troubleshooting
provides
Procedure 8 "Troubleshooting
98).