Cisco Catalyst 9500

DiagFanTest
This test verifies if all the fan modules that have been inserted are working properly on the board.
DescriptionAttribute
NondisruptiveDisruptive or Nondisruptive
Run this as a health-monitoring test if you experience
a problem with the fan module.
Recommendation
On.Default
Cisco IOS XE Everest 16.6.1.Intitial release
–Corrective action
Supervisors.Hardware support
DiagPhyLoopbackTest
This PHY loopback test verifies the PHY-level loopback functionality. In this test, a packet, which loops back
at the PHY level and is matched against the stored packet, is sent. It cannot be run as a health-monitoring test.
In certain cases when this test is run on-demand, ports are moved to the error-disabled state. In such cases,
use the shut and no shut command in interface configuration mode to reenable these ports.
Note
DescriptionAttribute
Disruptive.Disruptive or Nondisruptive
If the link to the external connector is down, run this
on-demand test to check the health of the link.
Recommendation
Off.Default
Cisco IOS XE Everest 16.6.1.Intitial release
–Corrective action
Supervisors and linecards.Hardware support
DiagScratchRegisterTest
This Scratch Register test monitors the health of ASICs by writing values into registers and reading back the
values from these registers.
DescriptionAttribute
Nondisruptive.Disruptive or Nondisruptive
System Management Configuration Guide, Cisco IOS XE Amsterdam 17.2.x (Catalyst 9500 Switches)
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Configuring Online Diagnostics
Generic Online Diagnostics (GOLD) Tests