Troubleshooting

Payload Loopback

The local Payload Loopback (PLB) loops the information received on the selected interface back to the network after it has passed through the receive and transmit framing section of the device. Use the PLB to determine whether the problem is with the T1 facility or in the circuitry of the remote device.

Main Menu Test Network Physical Tests

Other

All

T1

Framer

PLB

The T1

Interface

1s

 

 

 

Interface

97-15337

CAUTION:

This test may affect the operation of the frame relay PVCs assigned to the selected port. While in loopback, the frame relay link will be down so any IP data being sent while this test is active will be disrupted.

A PLB cannot be started when one of the following tests is active:

HLine Loopback, Repeater Loopback, Send Remote Line Loopback, or an active Monitor Pattern on this network interface.

HSend Pattern test on this network interface.

6-22

May 2000

9123-A2-GB20-00

Page 172
Image 172
Paradyne 9123 manual Payload Loopback, Plb