Sun Microsystems 820-4733-10 service manual Troubleshooting Line Cards, 1Line Card Status LEDs

You must inspect the front and back line card connectors, and retainers before installing the line card into the switch chassis.

7.2Troubleshooting Line Cards

The status LEDs on the line cards can help you determine the problems with the line cards. See TABLE 7-1.

TABLE 7-1Line Card Status LEDs

Glyph	Name	Color	State and Meaning
	Locator	White	On – No function.
			Off – Normal operation.
			Flashing – The line card is identifying itself.
	Ready-to-Remove	Blue	On – Line card has been disabled and is ready to be removed.
			Off – Do not remove
			Flashing – No function.
	Attention	Amber	On – Fault detected.
			Off – No fault detected.
			Flashing – Critical error.
	Ok	Green	On – Normal operation at full power.
			Off – Standby voltage, or no power at all applied.
			Flashing – No Function.
N/A	Link	Green	On – Link established.
			Off – No link or link down.
			Flashing – Symbol error.

Additionally, the following commands can provide basic status information:

■showpresent

■checkpwrfault

■checkvoltages

■checkswitches

■showtemps

More complex and verbose commands are available for troubleshooting. See the Sun Datacenter Switch 3456 Administration Guide and Sun Datacenter Switch 3456 Reference Manual for further information.

7-2Sun Datacenter Switch 3456 Service Manual • August 2008