Re: OPNET - End user experience - Analyzing TCP packets

On Wed, Jul 31, 2013 at 1:21 PM, Carlos G Mendioroz <tron_at_huapi.ba.ar> wrote:
> It could do differencial tests between icmp and tcp processing.
> Pings are usually answered with very little/no cpu involvement, and
> would give a baseline to compare to.

The probe could also measure the TCP establishment time
(SYN/SYN-ACK/ACK), which would give a baseline for TCP processing time
+ network latency.

-Thomas

>>> On Wed, Jul 31, 2013 at 3:06 AM, Sirhan Khan <khan.sirhan_at_gmail.com>wrote:
>>>
>>>> Hi Guys
>>>>
>>>> Just a quick question, I just left a meeting now and have been monitoring
>>>> packets on wireshark for some time but don't see how this is possible.
>>>>
>>>> Topology:
>>>>
>>>> USER -- LAN -- WAN -- OPNET PROBE -- PE -- DATA CENTRE
>>>>
>>>> Looking at the position of the OPNET probe, can the opnet device look at
>>>> the processing time of the USER machine ( how long the client machine's
>>>> processor takes to process the tcp packet ).
>>>>
>>>> According to OPNET, this is possible by looking at certain variables on
>>>> the
>>>> packet header. Is this possible?
>>>>
>>>> Regards
>>>> Sirhan
>>>>
>>>>
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>
> --
> Carlos G Mendioroz <tron_at_huapi.ba.ar> LW7 EQI Argentina
>
>
> Blogs and organic groups at http://www.ccie.net
>
> _______________________________________________________________________
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Received on Wed Jul 31 2013 - 16:07:13 ART