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The instrument connected to the LOM receives a lot of CRC error packets when an engineer disables distance extension

Publication Date:  2012-07-24 Views:  33 Downloads:  0
Issue Description

 The instrument connected to the LOM receives a lot of CRC error packets when an engineer disables distance extension.  

Alarm Information

 Null 
 

Handling Process

 This fault lies in the improper test environment and does not need to be rectified. 

Root Cause

 Logic PL253 on the LOM requires a switch to adjust the number of idle packets. Without the switch, the LOM cannot adjust the number of idle packets. As a result, CRC errors occur. Huawei recommends against connecting an instrument directly to the LOM to test extension. 

Suggestions

 Null

END