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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 dspenvalms
dspenvalms
Display Environment Alarms
Display alarms related to the enviro nm ent of the node. The monitor ed cat ego ri es are:
•Temperature inside the enclosure
•AC power supplies if applicable
•DC supply power
•DC system power
•Bottom fan tray operation
•Top fan tray operation
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 mus t
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.
The dspenvalms command is part of a hierarchy of troubleshooting commands you can execute on the
PXM45. Frequently, dspenvalms follows the higher-level comm an d dspndalms. The dspndalms
command shows a variety of alarm ty pe s w it hi n th e sw i tch a nd h el ps i s o lat e t he p rob lem .
Cards on Which This Command Runs
PXM45
Syntax
dspenvalms
[temp]
[psu]
[fan]
[vmon]
Syntax Description
temp (temperature) shows the temperature and whether an alarm condition exists.
psw (power supply units) shows how many AC power supplies reside in the power supply
tray, and also shows the high and low DC outp u t values that the AC power supplies
should be able to maintain.
fan shows the presence of top and bottom fan trays, minimum rotation rate of each fan,
and actual rotation rate of each f an in R PMs.