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FAQ-What is the Meaning of LUAS and PUSA on POS Interface

Publication Date:  2012-07-27 Views:  110 Downloads:  0

Issue Description

Q:
What is the meaning of LUAS and PUSA on POS interface?
The case is applied to all versions of 8011.

Alarm Information

Use display pos interface pos x/x/x command and it displays:
LINE:
...
    LUAS          888       
...
PATH:
...
    PUAS            0       
...
The latter number of LUAS displays even it does not connec tail fiber, 0~999 calculation account.

Handling Process

A:
LUAS stands for seconds of multiplex CRC, the result of B2 CRC check-character.
PUAS means seconds of channel CRC, B3 CRC check-character.
If these two are problematic, it indicates the error bit of multiplex segment  is large. There is one threshold, improve this threshold.

Root Cause

Null

Suggestions

It displays the parameter of transmission link under the interface. If there is problem, check transmission link. 

END