8. Testing
3160-A2-GB24-10
March 2001
8-9
Line Loopback (LLB)
The Line Loopback command (LLB) loops the received signal on the network
interface back to the network without change.
Procedure
To perform a Line loopback:
1. From the top-level menu screen, select Test.
2. From the Test screen, select Lpbk.
3. From the Loopback screen, select LLB.
Test Started
appears on Line 2. If a line 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
Table 8-2, Valid Loopback Combinations
, for valid loopback test
combinations).
496-14319-02
CSU
DSU
NETWORK
INTERFACE
DTE
(DSX-1)
ALL 1s
LLB
PORT 1
PORT 2
ALL 1s
ALL
1s
F1
F2
F3
Test:
Rlpbk Lpbk Ptrns
F1
F2
F3
Loopback:
Abort LLB PLB
Содержание 3160-A4
Страница 14: ...Contents viii March 2001 3160 A2 GB24 10 ...
Страница 18: ...About This Guide xii March 2001 3160 A2 GB24 10 ...
Страница 26: ...1 Introduction 1 8 March 2001 3160 A2 GB24 10 ...
Страница 38: ...2 Installation 2 12 March 2001 3160 A2 GB24 10 ...
Страница 54: ...3 Using the Front Panel 3 16 March 2001 3160 A2 GB24 10 ...
Страница 102: ...4 Configuration 4 48 March 2001 3160 A2 GB24 10 ...
Страница 110: ...5 Security 5 8 March 2001 3160 A2 GB24 10 ...
Страница 162: ...8 Testing 8 24 March 2001 3160 A2 GB24 10 ...
Страница 164: ...A Front Panel Menu A 2 March 2001 3160 A2 GB24 10 ...
Страница 222: ...D Configuration Worksheets D 14 March 2001 3160 A2 GB24 10 ...
Страница 240: ...E Pin Assignments E 18 March 2001 3160 A2 GB24 10 ...
Страница 272: ...F SNMP MIB Objects F 32 March 2001 3160 A2 GB24 10 ...
Страница 280: ...G IP Network Addressing Scenarios G 8 March 2001 3160 A2 GB24 10 ...
Страница 300: ...J Equipment List J 2 March 2001 3160 A2 GB24 10 ...