Paradyne 9788 - Manual (Page 202)

8. Troubleshooting
8-18 December 2002 9700-A2-GB20-20
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.
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.
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.
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.
PVC Tests Screen Example
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.
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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