Nortel Networks 8672ATMM manual MDA LED indications Label Color State Meaning

			LEDs 43
Table 7
MDA LED indications
Label	Color	State	Meaning
TX	Green	Steady	Indicates network activity for the corresponding port.
			A very low level of network activity (approximately
			1–5 pps) can cause the LED to blink.
	—	Off	The port is not transmitting data (no network activity).
	Amber	Blinking	The port is out of order; the administrative state is
			down.
RX	Green	Blinking	Indicates network activity for the corresponding port
			(the port is receiving traffic).
	Green	Steady	The port is operational; no network activity.
	Amber	Blinking	The port is not operational; the administrative state
			is down.
	Amber	Steady
			A Remote Defect Indication (RDI) alarm condition
			has been detected; the administrative state is down.
			The RDI alarm condition indicates that a failure
			occurred at the far end of the network. In ATM,
			when the physical layer detects loss of signal or
			cell synchronization, RDI cells are used to report a
			VPC/VCC failure. RDI cells are sent upstream by a
			VPC/VCC endpoint to notify the source VPC/VCC
			endpoint of the downstream failure.
	—	Off	The port is not operational. Be sure that the MDA is
			fully seated in the slot; check that the port is properly
			configured.

Nortel Ethernet Routing Switch 8600

Installation — Media Dependent Adapters for the 8672ATME and 8672ATMM Modules

NN46205-316 01.01 Standard

30 May 2008

Copyright © 2008 Nortel Networks