HP 445 manual LED Error Patterns During Operation

Troubleshooting

Interpreting LED Error Patterns

Table 3-2. LED Error Patterns During Operation

	Operational fault LED patterns			Diagnostic Tips
Power	Self-test	Fault	Net Fail
Unlit	*	*	*	Check power cord and power source. If they are OK, replace
				the router.
Lit	Unlit	Lit	All	Software failure. Press Reset button or enter NCL Boot
			Unlit	command if router is not set to reboot automati cally. Check
				console after you boot for the crash message. (You can re-
				examine the crash messages any time with NCL’s Crash
				command.)
Lit	*	Lit	All Lit	While Reset button is pressed or when power is applied, this
				pattern is normal. If Reset is not pressed when you see this
				pattern, go to the next row.
Lit	Unlit	Lit	Any Ports Lit	Port failure. Cycle power or press Reset button to run self-
				test. Interpret results using table 3-1.
Lit	Unlit	Unlit	Any WAN	For point-to-point non-X.25 circuits, if Remote Signal & Sense
			Lit	is enabled, then the WAN port is not hearing properly
				addressed Breath-of-Life packets from the remote device.
				This may be due to faulty or disconnected network hardware
				or improper configuration. If nothing is to be connected to
				this port, set Auto Enable to No for this circuit in the
				Configuration Editor or delete the configuration for this port.
Lit	Unlit	Unlit	Ethernet	The driver is unable to send data. Data is sent by a protocol
			(802.3) LAN	or when XCVR Signal Polling is enabled on this LAN port. The
			Lit	failure may be due to faulty or disconnected network hard-
				ware, excessive collisions, or excessive deferrals. If nothing
				is to be connected to this port, set Auto Enable to No for this
				circuit in the Configuration Editor.
Lit	Unlit	Unlit	Token Ring	Ring error occured. Either the cable is not properly attached
			(802.5) LAN	or the wrong ring interface rate is active. (Options are 4
			Lit	Mbit/s, 16 Mbit/s, or 16 Mbit/s ETR). Check both end
				connections of the cable and then use the Quick

Configuration utility to verify that you are using the proper rate. (The Ring Interface parameter is listed in the ‘‘Port Conf’’ column of the ‘‘Token Ring’’ row of Quick configuration screens in routers having a token ring port.)

*This LED is not important for the diagnosis.

Troubleshooting 3

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