PVC Tests Screen Example

If the device at one end of the circuit is not a FrameSaver device, PVC tests are on a standard DLCI and are disruptive to data. Also, the Connectivity test would not appear.

When PVC tests are on a multiplexed DLCI between FrameSaver devices, they are nondisruptive to data, so user data can continue to be sent during a test.

8. Troubleshooting

PVC Tests

PVC tests can be run on a requested DLCI for a selected interface. Data Port PVC tests do not apply to the DSL router.

Loopback and send/monitor pattern tests are available for each interface on the selected DLCI. FrameSaver devices should be at each end of the circuit. If a PVC Loopback is started at one end of the circuit, the other end can send and monitor pattern tests.

The following example shows a FrameSaver DSL CSU/DSU’s PVC Test screen, with the multiplexed DLCI 550 selected. If the DSL router or a standard DLCI was selected, (Disruptive) rather than (Non-Disruptive) displays after Test, and the Connectivity test does not appear.

main/test/network_pvc					9783-C-SLV
Device Name: Node A				2/26/2001 08:03
	Net1-FR1 PVC TESTS
DLCI Number: 550
Test (Non-Disruptive)	Command	Status	Result
PVC Loopback:	Start	Inactive	0:00:00
Send Pattern:	Start	Inactive	0:00:00
Monitor Pattern:	Start	Inactive	0:00:00
			Sequence Errors	99999+
			Data Errors	99999+
Connectivity:	Start	Inactive	RndTrip Time(ms)	99999

--------------------------------------------------------------------------------

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NOTE:

Errors encountered during these tests may be caused by mismatched CIRs in the two FrameSaver units. If errors are detected, verify the CIR configuration and retest.

8-18

December 2002

9700-A2-GB20-20

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Paradyne 9788, 9720 manual PVC Tests Screen Example

Models: 9720 9788

PVC Tests