Nortel 1000E Maintenance Manual page 78

Page 78 of 162 Clearing faults
MG 1000E faults
553-3041-500 Standard 1.00
To troubleshoot faults with the MG 1000E ELAN network interface, follow
the steps in Procedure 7.
Procedure 5
Troubleshooting for MG 1000E ELAN network interface
1 Verify that the green Link LED on the daughterboard in the MG 1000E
SSC is on (indicating that the physical connection is operational). If the
Link LED is off, check the physical connection by verifying that the
daughterboard and cables are properly installed.
2 Use the LD 32 command DISS l s (where l s are the loop and shelf
numbers of the MG 1000E) to disable the link for testing.
3 Test the IP connectivity between the CS 1000E Core Call Server and the
Layer 2 switch by pinging the IP address of the Layer 2 switch. Perform
the same test between the MG 1000E and the Layer 2 switch. Consult the
local IS department for the appropriate IP address.
4 Use the PING <ip address of the MG 1000E> command in LD 117 to
verify network connection.
5 Re-enable any disabled components. Verify the 100BaseT connection
between the Call Server and the MG 1000E is operating by pinging the IP
address of the MG 1000E(s) configured.
Note: The MG 1000E supports only Layer 2 and Layer 3 switches.
Software-based routers are not recommended.
The MG 1000E provides the interface between network switching and
terminal equipment (such as trunks and telephones). MG 1000E faults can
disable network and terminal equipment. Refer to Table 15 on
MG 1000E fault indicators.
An overload (OVD) message on an MG 1000E indicates a network loop is
disabled and that all connections on the loop are disabled. The network loop
number corresponds to a specific card number in the MG 1000Es (see
"MG 1000E and MG 1000E Expander card slot assignment" on
details). System messages can also indicate that one or more cards is defective
or disabled without producing an OVD message. In either case, look up all
September 2004
End of Procedure
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