Frame Relay PVC Problems

8. Troubleshooting

Table 8-4. Frame Relay PVC Problems

Symptom	Possible Cause	Solutions

Losing Data	Frame relay network is	Run PVC Loopback and Pattern
	experiencing problems.	tests to isolate the problem, then
		contact the service provider.

No receipt or	Cross connections of the	Verify the PVC connections and
transmission of data	DLCI(s) are configured	DLCIs by checking the
	incorrectly.	network-discovered DLCIs on
		the LMI Reported DLCIs screen.

	DTE is configured	Check the DTE’s configuration.
	incorrectly.

	LMI is misconfigured for the	Configure LMI options to match
	DTE or network.	those of the DTE or network.

	LMI link is inactive.		For the CSU/DSU, verify that
			the LMI link is active (the
			Status Msg Received counter
			on the Network Frame Relay
			Performance Statistics screen
			is incrementing).
			For the router, verify that the
			Ethernet interface is active (the
			Frames Transmitted and
			Frames Received counters on
			the Ethernet Performance
			Statistics screen are
			incrementing).

Out of Sync	If Monitor Pattern was		Verify that the unit at the other
	selected, it means the test		end is configured to Send
	pattern generator and		Pattern.
	receiver have not yet		Correct unit configurations.
	synchronized.		Correct unit configurations.
	synchronized.		Correct the CIR setting so both
	CIR settings for the units at		Correct the CIR setting so both
	CIR settings for the units at	units are configured the same.
	each end are mismatched.		Check the line’s error rate for
	If the message persists, it		Check the line’s error rate for
	If the message persists, it		physical line quality.
	means that 5 packets out of		physical line quality.
	means that 5 packets out of		Contact the service provider.
	25 are missing or are out of		Contact the service provider.
	25 are missing or are out of
	sequence.

8-14

December 2002

9700-A2-GB20-20

9720, 9788 specifications

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Paradyne 9788, 9720 manual Frame Relay PVC Problems Symptom Possible Cause Solutions

Models: 9720 9788