Table of Contents
Advertisement
Monitoring and Testing
Starting a Repeater Loopback
"
4-22
The Repeater Loopback command (RLB) loops the signal being sent to the
network back to the data port. The signal is looped back as close to the network
interface as possible (after it has passed through the framing circuitry of the
DSU/CSU). Framing CRCs and BPVs are corrected.
DSU
CSU
RLB
PORT 1
Procedure
To perform a Repeater loopback:
1. From the top-level menu screen, select Test.
2. From the Test screen, select Lpbk.
Test:
Rlpbk Lpbk
F1
3. From the Loopback screen, press the
appears on the screen.
4. Select RLB.
Loopback:
LLB
PLB
F1
Test Started appears on Line 2. If a Repeater loopback is already in
progress, the Already Active message appears. If an invalid combination
of loopbacks is in progress, the error message Invld Test Combo appears
(see
Table4-7
for valid loopback test combinations).
March 1999
NETWORK
INTERFACE
ALL 1s
98-15948
Ptrns
F2
F3
key until the RLB selection
RLB
F2
F3
3166-A2-GB20-20
Advertisement
Table of Contents
