BERT

This command need to configure a bit error rate test (BERT)

   bert <option> [params]

Bert commands:

Name	Description
help	prints information about BERT commands
show patterns	lists available patterns
show config	prints current BERT configuration
show stats < li > all [realtime <update sec> [<template_number>]]	prints statistics for BERT
set span < li > <pattern> [raw|<mask>] [rx|tx]	configures BERT on span < li >
start all|< li > [rx|tx]	starts configured BERT
stop all|< li > [rx|tx]	stops active BERT
set log < li > <file>|console|syslog	sets destination for realtime logs
show templates	lists known templates for realtime logs
history file <filename>	sets file name for main bert log
history interval <seconds>	sets time interval for writes to main bert log
history limit <bytes>	sets limit for main bert log file size
history template <number>	sets template for main bert log entries
bert log <number> set template <template>	saves template for BERT realtime logs

• Note:

Template can be specified to BERT later with its number Template is a text string, which can contain the following patterns:  %li - Number of span  %s - Current BERT SYNC state  %los - Count of SYNC losses  %et - Elapsed Time (default format: 1 day 23:59:59)  %D - Elapsed Time in days  %TH - Elapsed Time in hours  %H - Hours part of Elapsed Time  %TM - Elapsed Time in minutes  %M - Minutes part of Elapsed Time  %TS - Elapsed Time in seconds  %S - Seconds part of Elapsed Time  %be - Bit Errors  %tbe - Total Bit Errors  %cer - Current Error Rate  %ter - Total Error Rate  %es - Errored Seconds  %efbe - Error Free Seconds  %efs - Error Free Seconds (in per cent)  %as - Available Seconds  %pas - Available Seconds (in per cent)  %us - Unavailable Seconds  %pus - Unavailable Seconds (in per cent)  %pattern - Current pattern  %% - Per cent symbol

• Example BERT config's:

bert set span 0 2^15-1 rx
bert set span 0 2^15-1 tx
bert set span 1 2^15-1 rx
bert set span 1 2^15-1 tx
bert start all 
bert show stats all realtime 10

In this example configured 2 spans with pattern 2^15-1 and information about this test prints in realtime every 10 seconds