Cisco Nexus 5000 Series Switch CLI Software Configuration Guide (OL-16597-01, July 2009)

DescriptionDiagnostic
Verifies the integrity of the NVRAM.NVRAM
Tests connectivity of the inband port to the supervisor.In band port
Tests the management port.Management port
Verifies the integrity of the DRAM.Memory
Bootup diagnostics also include a set of tests that are common with health monitoring diagnostics.
Bootup diagnostics log any failures to the onboard failure logging (OBFL) system. Failures also trigger an
LED display to indicate diagnostic test states (on, off, pass, or fail).
You can configure Cisco Nexus 5000 Series switches to either bypass the bootup diagnostics, or run the
complete set of bootup diagnostics.
Health Monitoring Diagnostics
Health monitoring diagnostics provide information about the health of the switch. They detect runtime hardware
errors, memory errors, software faults, and resource exhaustion.
Health monitoring diagnostics are nondisruptive and run in the background to ensure the health of a switch
that is processing live network traffic.
The following table describes the health monitoring diagnostics for the switch.
Table 35: Health Monitoring Diagnostics Tests
DescriptionDiagnostic
Monitors port and system status LEDs.LED
Monitors the power supply health state.Power Supply
Monitors temperature sensor readings.Temperature Sensor
Monitors fan speed and fan control.Test Fan
The following table describes the health monitoring diagnostics that also run during system boot or system
reset.
Table 36: Health Monitoring and Bootup Diagnostics Tests
DescriptionDiagnostic
Verifies the integrity of backplane and supervisor
SPROMs.
SPROM
Tests the switch fabric ASICs.Fabric engine
Tests the ports on the switch fabric ASIC.Fabric port
Cisco Nexus 5000 Series Switch CLI Software Configuration Guide
330 OL-16597-01
Information About Online Diagnostics
Health Monitoring Diagnostics