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Performing Loopback Tests
137
6
To determine the current status of the loopback test, either
locally-initiated or remotely-initiated, and to determine if the V.54
loopback detection is on, enter:
SHow -SYS V54Lback
Performing a Local
Loopback Test on the
CSU/DSU Port
(45x and 55x)
This section describes how to perform a local loopback test using the
loopback plug on the built-in 56/64 Kbps CSU/DSU on the model 45x and
55x bridge/router.
Figure 11 shows the data flow that occurs when this loopback test is
performed.
Figure 11
CSU/DSU Local Loopback Testing
Before running the CSU/DSU loopback test, attach a console or Telnet to
your bridge/router.
To perform a local loopback test on the built-in CSU/DSU, follow
these steps:
1
Uncable the WAN port and insert the loopback plug that came with your
system.
2
Set the baud rate to 56 Kbps by entering:
SETDefault !3 -PATH Baud = 56
SETDefault !3 -PATH CONTrol = Enable
3
Set the owner of the WAN port to loopback by entering:
SETDefault !3 -PORT OWNer = LoopBack
4
Select the loopback test mode by entering:
DLTest TestMode LoopBack
CSU/DSU port
with loopback plug
Summary of Contents for NETBuilder SI
Page 6: ......
Page 22: ...22 CHAPTER 1 FEATURES AND SPECIFICATIONS...
Page 28: ...28 CHAPTER 2 USING THE BRIDGE ROUTER IN YOUR NETWORK...
Page 40: ...40 CHAPTER 3 INSTALLING THE HARDWARE...
Page 52: ...52 CHAPTER 4 INSTALLING OR REMOVING AN INTERFACE MODULE...
Page 78: ...78 CHAPTER 6 BASIC CONFIGURATION OF PORTS AND PATHS...
Page 100: ...100 CHAPTER 7 ADVANCED CONFIGURATION OF PORTS AND PATHS...
Page 120: ...120 CHAPTER 9 CUSTOMIZING YOUR SOFTWARE...
Page 150: ...150 APPENDIX A TROUBLESHOOTING...
Page 162: ...162 APPENDIX C SYNTAX CONVENTIONS...
Page 196: ...196 APPENDIX E PROVISIONING YOUR ISDN LINE...
Page 202: ......
Page 210: ...210 INDEX...
Page 212: ......