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List:       tcpdump-workers
Subject:    [tcpdump-workers] rtp packet lost and jitter script
From:       miguel olivares varela <klica_sk8 () hotmail ! com>
Date:       2008-04-01 15:08:38
Message-ID: BAY116-W53C4F5D1267B77E0EEBE91DCF50 () phx ! gbl
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Hi everybody, I'm trying to create a script to determine rtp packet lost using \
tcpdump and awk. And It works, but also i'm trying to create a script to calculate \
the jitter but i don't have an idea how to do it. Maybe there is a tool or someone \
has an idea.   
#!/bin/sh
#Scrip To calculate rtp packet lost.
sudo /usr/sbin/tcpdump -r sample_test.pcap -T rtp | awk '{seq=$8; time=$1; \
split($2,src,"."); split($4,dst,"."); if (seq != (oldseq+1)) {if (oldseq != "")  \
{print "Time:"time " src host:"src[1]"."src[2]"."src[3]"."src[4]" src port:"src[5]" \
dst host:"dst[1] "." dst[2] "." dst[3] "." dst[4],"port:" \
substr(dst[5],1,index(dst[5],":")-1),"Seq:"seq,"OldSeq:"oldseq}; \
lost=lost+seq-oldseq};oldseq=seq;}' >>test_file  can anybody helpme or does any body \
did a script for the jitter. thanks Best Regards  

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