Extreme 3804 Supplementary Manual

54

Advanced System Diagnostics and Troubleshooting Guide

Automatically, as a background task under the global system health check umbrella, as configured in 
the commands:

enable sys-health-check

config sys-health-check auto-recovery <number of tries> [offline | online] (BlackDiamond)

config sys-health-check alarm-level auto-recovery [offline | online] (Alpine or Summit)

This option is available on Summit, Alpine, and BlackDiamond systems, and is described in “System 
(CPU and Backplane) Health Check” on page 69.

Automatically, on a per-slot basis, to scan and check the health of a specific BlackDiamond module, 
as configured in the command:

configure packet-mem-scan-recovery-mode

This option is available on BlackDiamond systems only, and is described in “Per-Slot Packet Memory 
Scan on BlackDiamond Switches” on page 66.

When you are in the process of implementing the ExtremeWare diagnostics, keep in mind the software 
fault recovery features built into Extreme hardware and software products to detect and respond to 
problems to maximize switch reliability and availability. The System-Watchdog, System-Recovery-Mode, 
and Reboot-Loop-Protection functions ensure that the switch can not only pass all POST test 
diagnostics, but also verify that all processes continue to perform properly during runtime operation. 
For more information, see Chapter 4, “Software Exception Handling”.