Online Diagnostics Overview; Bootup Diagnostics - Cisco Nexus 7000 Series Configuration Manual

Online Diagnostics Overview

Online Diagnostics Overview
With online diagnostics, you can test and verify the hardware functionality of the device while the device is
connected to a live network.
The online diagnostics contain tests that check different hardware components and verify the data path and
control signals. Disruptive online diagnostic tests (such as the disruptive loopback test) and nondisruptive
online diagnostic tests (such as the ASIC register check) run during bootup, line module online insertion and
removal (OIR), and system reset. The nondisruptive online diagnostic tests run as part of the background
health monitoring and you can run these tests on demand.
Online diagnostics are categorized as bootup, runtime or health-monitoring diagnostics, and on-demand
diagnostics. Bootup diagnostics run during bootup, health-monitoring tests run in the background, and
on-demand diagnostics run once or at user-designated intervals when the device is connected to a live network.

Bootup Diagnostics

Bootup diagnostics run during bootup and detect faulty hardware before Cisco NX-OS brings a module online.
For example, if you insert a faulty module in the device, bootup diagnostics test the module and take it offline
before the device uses the module to forward traffic.
Bootup diagnostics also check the connectivity between the supervisor and module hardware and the data and
control paths for all the ASICs.
Bootup diagnostics log failures to onboard failure logging (OBFL) and syslog and trigger a diagnostic LED
indication (on, off, pass, or fail).
You can configure the device to either bypass the bootup diagnostics or to run the complete set of bootup
diagnostics.
Note Bootup tests are not available on demand.
The following tables describe the bootup diagnostic tests for a module and a supervisor:
Table 25: Bootup Diagnostic Tests for Modules
Test Name
EOBCPortLoopback
OBFL
Cisco Nexus 7000 Series NX-OS System Management Configuration Guide
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Description Supported Modules
Disruptive test, not an All F1, M1, M3, F2, F2e
on-demand test. Ethernet and F2 modules
out of band
Verifies the integrity of All F1, M1, M3, F2, F2e
the onboard failure and F2 modules
logging (OBFL) flash.
Configuring Online Diagnostics
Unsupported Modules
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