Paradyne 8779, 8747, 8777 manual Monitoring and Troubleshooting

Monitoring and Troubleshooting

Table 7-1. Health and Status Messages (2 of 3)

Message	What Message Indicates	What To Do
LOF at DSX-1,	An LOF (Loss Of Frame)	1.	Verify that the network cable is
Pt n	condition has been detected		securely attached at both ends.
	on the DSX-1 interface. LOF	2.	Contact network provider.
	is declared when an OOF
	state exists longer than 2.5
	seconds.
LOF at G.703,	An LOF condition has been	1.	Verify that the network cable is
Pt n	detected on the G.703		securely attached at both ends.
	interface. LOF is declared	2.	Verify that the units line framing
	when any three consecutive
			and line coding are compatible.
	frame synchronization bits are
	incorrect, frames not	3.	Contact network provider.
	containing the frame
	alignment signal are received
	with an error three times
	consecutively, or, for CRC-4
	framing, CRC multiframe bit
	alignment fails.
LOS at DSX-1,	An LOS (Loss Of Signal)	1.	Verify that the network cable is
Pt n	condition has been detected		securely attached at both ends.
	on the DSX-1 interface. No	2.	Contact network provider.
	signal is being received on
	Port n. LOS is declared when
	175 consecutive zeros are
	received.
LOS at G.703,	An LOS condition has been	1.	Verify that the network cable is
Pt n	detected on the G.703		securely attached at both ends.
	interface. No signal is being	2.	Contact network provider.
	received on Port n. LOS is
	declared when 175
	consecutive pulse
	transmissions are received
	with no pulse transitions.
LOS at Net, Pt n	An LOS (Loss Of Signal)	1.	Verify that the network cable is
	condition has been detected		securely attached at both ends.
	on the network interface. No	2.	Contact network provider.
	signal is being received on
	Port n, possibly due to a local
	network problem.
Mismatch Rate,	The LTU, set to a fixed DSL	Set the LTU to a compatible rate or
Pt n	rate, is attempting to operate	replace the NTU.
	at a rate the NTU is not
	capable of.
Net Margin	The signal-to-noise margin	1.	Check the Network Performance
Threshold, Pt n	has exceeded the configured		Statistics screen for possible line
	threshold.		impairments.
		2.	Set the unit to run at a lower DSL
			line rate.
		3.	Contact network provider.

7-4 April 2000 8700-A2-GB20-00