Figure 21. Switch module LEDs

Heartbeat LED patterns

The heartbeat LED uses different flash patterns to indicate the following conditions:

Normal

Internal firmware failure

Fatal error

Configuration file system error

Normal (all pass) LED flash pattern

If POST diagnostics pass and the switch module processor is operating correctly, the switch will go to normal operation, and the heartbeat LED will flash at a steady rate of one flash per second.

Internal firmware failure LED flash pattern

An internal firmware failure flash pattern is two flashes per second followed by a 2-second pause, as shown in the following illustration. The two-flash error pattern indicates that the firmware has failed and that the switch module must be reset.

Fatal error LED flash pattern

A fatal error flash pattern is three flashes per second followed by a 2-second pause, as shown in the following illustration. The three-flash error pattern indicates that a fatal error has made the switch module inoperable. If a fatal error occurs, contact your technical support representative.

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Intel SBCEFCSW Heartbeat LED patterns, Normal all pass LED flash pattern, Internal firmware failure LED flash pattern, 115