Minor Off Minor Major Off Major ShutdownUnit3 55 60 75 80 85Troubleshoot an Over-temperature ConditionTo troubleshoot an over-temperature condition, use the following information.1 Use the show environment commands to monitor the temperature levels.2 Check air flow through the system. Ensure that the air ducts are clean and that all fans are working correctly.3 After the software has determined that the temperature levels are within normal limits, you can re-power the card safely. To bringback the line card online, use the power-on command in EXEC mode.In addition, to control airflow for adequate system cooling, Dell Networking requires that you install blanks in all slots without a line card.NOTE: Exercise care when removing a card; if it has exceeded the major or shutdown thresholds, the card could be hot to thetouch.Recognize an Under-Voltage ConditionIf 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: stack unit 2down - auto-shutdown due to under voltage.This message indicates that the specified card is not receiving enough power. In response, the system first shuts down Power overEthernet (PoE). If the under-voltage condition persists, line cards are shut down, then the RPMs.Troubleshoot an Under-Voltage ConditionTo troubleshoot an under-voltage condition, check that the correct number of power supplies are installed and their Status light emittingdiodes (LEDs) are lit.The following table lists information for SNMP traps and OIDs on the environmental monitoring hardware and hardware components.Table 114. SNMP Traps and OIDsOID String OID Name DescriptionReceiving Power.1.3.6.1.4.1.6027.3.10.1.2.5.1.6 chSysPortXfpRecvPower OID displays the receiving power of theconnected optics.Transmitting power.1.3.6.1.4.1.6027.3.10.1.2.5.1.8 chSysPortXfpTxPower OID displays the transmitting power of theconnected optics.Temperature.1.3.6.1.4.1.6027.3.10.1.2.5.1.7 chSysPortXfpRecvTemp OID displays the temperature of theconnected optics.NOTE: These OIDs only generate ifyou enable the enable optic-info-update-interval isenabled command.Debugging and Diagnostics 1115
