Departmental Switch Model DS-16B Hardware Reference Manual
Front Panel Diagnostics
Front Panel Diagnostics
This section gives a diagnostic overview and discusses:
• Diagnostic Overview
• Status and Activity Indicators
• Diagnostic Tests
See Appendix C, Error Messages, for the actual error message descriptions.
Diagnostic
Overview
The switch is designed for maintenance free operation. When there is
a suspected failure, the switch has self diagnostic capabilities to aid in
isolating any equipment or Fabric failures.
The switch supports Power-On Self-Tests (POSTs) and diagnostic
tests. The diagnostic tests determine the switch’s status and isolate
problems.
Telnet commands are used to determine the switch’s status, error
conditions, and switch operating statistics.
You perform diagnostics using either the switch’s front panel controls
or commands via a Telnet session. The front panel and Telnet
diagnostics overlap in function but are mutually exclusive. You can,
for example, start a diagnostic from Telnet, and monitor the results
using both the front panel display and via Telnet.
If a test is started using the front panel, you can monitor the test
progress, but cannot control the test through Telnet. If you start a test
using Telnet, attempting to control the test via the front panel may
lock up the switch and require a reboot.
The actual tests performed by the front panel and via a Telnet are
identical. Because the front panel displays a two line limit, more
detailed test results can be displayed via Telnet.
