Deployment Guide

In addition, Dell Networking requires that you install blanks in all slots without a line card to control airow for adequate system cooling.
NOTE: Exercise care when removing a card; if it has exceeded the major or shutdown thresholds, the card could be hot to the
touch.
Example of the show enivornment Command
Dell#show environment
-- Unit Environment Status --
Unit Status Temp Voltage TempStatus
---------------------------------------------------------------------------
* 0 online 59C ok 2
* Management Unit
-- Thermal Sensor Readings (deg C) --
Unit Sensor0 Sensor1 Sensor2
-------------------------------
0 55 45 58
Dell#
Recognize an Under-Voltage Condition
If the system detects an under-voltage condition, it sends an alarm.
To recognize this condition, look for the following system message: %CHMGR-1-CARD_SHUTDOWN: Major alarm: Line card 2
down - auto-shutdown due to under voltage.
This message indicates that the specied card is not receiving enough power. In response, the system rst shuts down Power over
Ethernet (PoE).
Troubleshoot an Under-Voltage Condition
To troubleshoot an under-voltage condition, check that the correct number of power supplies are installed and their Status light emitting
diodes (LEDs) are lit.
The following table lists information for SNMP traps and OIDs, which provide information about environmental monitoring hardware and
hardware components.
Table 48. SNMP Traps and OIDs
OID String OID Name Description
Receiving Power
.1.3.6.1.4.1.6027.3.10.1.2.5.1.6 chSysPortXfpRecvPower OID displays the receiving power of the
connected optics.
Transmitting power
.1.3.6.1.4.1.6027.3.10.1.2.5.1.8 chSysPortXfpTxPower OID displays the transmitting power of the
connected optics.
Temperature
.1.3.6.1.4.1.6027.3.10.1.2.5.1.7 chSysPortXfpRecvTemp OID displays the temperature of the
connected optics.
344 Debugging and Diagnostics