
GeoTel Features User Manual NCD Alarm Messages
P0602482 Ver. 04.03 Avaya Page 441
Troubleshooting Guidelines
NIC Phase Lock Loop (PLL)
A system can function as long as it has at least one clock source available for primary
reference. However, it is preferable to have both clocks available. To diagnose possible
PLL problems:
• Verify that all NICs in a system are booted. Use the ncd status command
to determine NIC status.
• Verify that all inter-chassis cables are connected and secure.
• Verify that all TMSs selected as clock sources (listed in $MPSHOME/
common/etc/tms/tms.cfg) are running and the associated spans are in
service.
NIC Redundancy
A chassis may be equipped with dual NICs to provide a backup in the event that one
card fails. The primary and secondary NIC need to be connected so that the secondary
NIC can monitor the status of the primary NIC (and take over for it in the event of
failure). To diagnose possible redundancy problems:
• Verify the NIC configuration file settings in $MPSHOME/common/etc/
tms/tms.cfg and the bootptab file.
• Use a serial console to isolate NIC boot problems.
• Use the NIC LEDs to isolate communication problems between the primary
and secondary NICs,
NIC ATM
Inter-chassis bridging occurs over an ATM fiber link between the chassis. To diagnose
possible ATM problems:
• Force a switch from the primary NIC to the slave. This can isolate the problem
NIC (if only one is faulty).
• Verify that all cables are connected and secure.
• In multi-chassis systems, verify that the cards are in the original factory-set
chassis and slots.
• Verify that the ATM fiber cable is not broken. The NIC has a "Fiber Integrity"
LED which lights if the fiber is broken. Note that this only verifies cable
continuity, not a configuration problem.
• Verify that the ATM switches are programmed to the factory installation
settings.
Komentarze do niniejszej Instrukcji