CommScope Technologies LLC IPBTS-C30-1900 Manual De Usuario

l

RN commissioning

Airvana ipBTS C30 Installation and Commissioning, Release 4.0

4-17

After the test is complete, the following data table displays for each backhaul tested.

Number of Transmitted Frames : x
Number of Received Frames    : x
Number of Error Frames       : x
Frames without valid Test ID : x
Frames with invalid Data     : x
Frame Error Rate             : x
Error Counters
Rx Frame Length Violations ... x
Rx Non-octet alignment     ... x
Rx Abort Frames            ... x
Rx CRC Errors              ... x

•

If  the  Number of Received Frames equals the Number of Transmitted 
Frames, proceed to 

on page 4-19.

•

If  the  Number of Received Frames does not equal the Number of 
Transmitted Frames, or if there are any errors counted, you need to 
troubleshoot the backhaul. Continue with 

This procedure explains how to run the internal loopback test on backhaul links that failed the 
external loopback test. This section also outlines what to do based on the test results: If the 
internal loop back passes, troubleshoot the cables and loopback devices. 

If the internal loopback fails, the node may be faulty and you should call Airvana’s 
Technical Assistance Center.

Follow this procedure to perform basic troubleshooting on failed backhaul links.

1. If the backhaul links are T1 or E1, enter the following CLI command to specify the 

backhaul links you want to set to internal loopback mode:

>ipBts-XXX_SC>mmb <port memory locations> 04

Where: <port memory locations> are the backhaul links to place into internal 
loopback mode. See