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Cisco MGX 8850 Routing Switch Command Reference
Release 2.0, Part Number 78-10467-04 Rev C0, October 2001
Chapter9 Troubleshooting Commands
dspcdstatus
dspcdstatus
Display Card Status
Displays the most serious alarm s re p orte d by a ser v ic e m o d ul e. Th e al ar m i nformation pertains to:
•Lines
•Ports
•Connections
•Feeders
•Severity of each alarm
You can use this command to isolate the alarm source if, for example, you see that a Critical Alarm LED
is lit or just want to check the node for alarms. Y o u can sub sequent ly use ot her alar m commands to l ocate
the problem. Some alarm commands run on only the PXM45, and other commands run on service
modules. The commands other than dspcdstatus on the PXM45 are:
•dspndalms displays various types of alarms on the node from a high-level perspective. With the
information in the dspndalms display, you can selec t one o f th e ot he r com ma nds to investigate the
alarm further.
•dspcdalms identifies line, port, feeder, or conn ect io n ala rms on an AXSM.
•dspclkalms shows alarms related to network clocks.
•dspenvalms lists alarms for out-of-range conditions for temperature, voltage sources, and so on.
•dspslotalms shows card-level alarms, such as a missing card or a disk problem on the PXM-HD.
•dspswalms shows alarms relate d to th e switching hardwa re on the PXM45.
The alarm monitoring functi on on t he P X M45 us es two c rite ri a t o dete rmi ne wh ic h ala rm t o di s play. One
criterion is alarm severity, and the other is hierarchy.
The definition of each alarm severity comes from Bellcore TR-NWT-000474. An alarm can be:
•Critical, indicating complete, non-recoverable failure, loss of data, and do on. The failed entity mu st
be restored. A power failure or a line being disconnected is an example.
•Major, indicating service-affecting e rrors. This event indicates that a maj or se rvice is damaged or
lost, but the existing traffic is no t a ffected.
•Minor, indicating non-service affecting errors or errors on a remote node. Corrective action is
appropriate to prevent a serious fault from developing. An example is a fan failure, where no
subscribers are immediat ely affected, but calamity cou ld result if the situation p ersists. Note that an
accumulation of lower-level alarms does eq ua l a h igher-level alarm.
Two hierarchies of alarm types exist. T hey are card alarms and node ala rms. See Figure 9-2 for a list of
alarm categories. Note that, al th ou g h th e ca r d a lar ms ap pe ar to a pply to only service modules, th is
category can also apply to the P XM4 5 .