Line Loopback - Paradyne FrameSaver SLV 9124 User Manual

Line Loopback

9124-A2-GB20-00
The Line Loopback (LLB) loops the information received on the selected interface
back to the source of the loopback. When used with a pattern test at the remote
node, LLB determines whether the problem is with the sending device or the T1
facility.
Main Menu Test
Other
All
T1
1s
Interface
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.
An LLB cannot be started when one of the following tests is active:
Payload Loopback, Send Remote Line Loopback, or an active Monitor
Pattern on this network interface.
Repeater Loopback on any other T1 interface with DS0s assigned to this
network interface.
Send FT1 Loopback or Data Channel Loopback on the synchronous
data port.
March 2000
Network Physical Tests
Framer
The T1
LLB
Interface
Troubleshooting
Line Loopback
97-15336
6-23