HP 3162 - Manual (Page 85)

Monitoring and Testing
5-21 3162-A2-GB20-40 August 2000
Table 5-10. Valid Loopback Combinations
LLB PLB DLB RLB DCLB DTLB
LLB N/A NO YES YES NO YES
PLB NO N/A YES NO NO YES
DLB YES YES N/A NO YES YES
RLB YES NO NO N/A NO YES
DCLB NO NO YES NO YES
(on
separate
ports) YES
(on
separate
ports)
DTLB YES YES YES YES YES
(on
separate
ports) YES
(on
separate
ports)
Starting a Line Loopback
The Line Loopback command (LLB) loops the received signal on the network
interface back to the network without change.
496-14319-02
CSU DSU
NETWORK
INTERFACE
DTE
(DSX-1)
ALL 1s
LLB
PORT 1 PORT 2
ALL 1s
ALL
1s
"
Procedure
To perform a Line loopback:
1. From the Main Menu screen, select Test.
2. From the Test screen, select Network & DTE Tests.
3. For the Line Loopback command (under Local Loopbacks), select Start.