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Hi,
I dont really understand your situation and input and output, however,
I dont think you can get the delay from Ethereal or any one-side
monitoring tool.
You can ping the remote host and get the RTT.
Divide it by two and thats your delay.
(If you know a better way to measure it, please please tell me.)
You can, however, measure the jitter by comparing the inter-arrival
time of each packet.
Comparing the arrival time is not real delay variation (because it is
not delay that you are comparing) but it can give you the picture of
jitter.
There is a paper discussing this. Check out:
http://carmen.cselt.it/papers/iss2000-ipdv/paper/ipdv.html Cheers,
Isara Anantavrasilp
On 8/1/06, Joby James -X (jobjames - WIPRO at Cisco) <jobjames@cisco.com> wrote:
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> The Ethereal project is being continued at a new site. Please go to
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>
>
> Hi All,
> I am using /usr/local/bin/tethereal
>
> "tethereal 0.10.0a
> Compiled with GLib 1.2.10, with libpcap 0.8.IOU, with libz 1.1.3,
> with libpcre 4.3, with UCD-SNMP 4.2.6, without ADNS.
> Running with libpcap version 0.8 on SunOS 5.8"
>
> I want to grep some packets from test equipment to a Router and need to find
> out the jitter & delay.
> What are the optional parameters I can give to get Packet, Sequence, Delta
> (ms), Jitter (ms), IP BW (kbps), Length
>
> To find out the delay how do I do that???? What are the optional parameters
> we should give to get the following output?
>
> OUTPUT 88.88.101.11, 3.3.3.2, RTP Payload type=ITU-T G.711 PCMU,
> SSRC=2078566856, Seq=27592, Time=2943916440 delay:0.253
> INPUT 2.2.2.2, 88.88.101.11, RTP, Payload type=ITU-T G.711 PCMU,
> SSRC=2078566856, Seq=27593, Time=2943916600
>
> Thanks and regards,
> Joby James ___________________________
> W i p r o Technologies
> Applying Thought
> #8, 7th Main, 1st Block
> Koramangala,
> Bangalore-560034
> Mobile: +91-9880 696590
> http://www.wipro.com
> ___________________________
>
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