Re: Accuracy of wireshark

[David Arnold <david.arnold () mantara com>]

If NTP and the OS are not good enough, we use capture cards from Napatech to obtain better time stamps than our host 
servers can manage. They sync with a PTP grand master. 

They provide a custom libpcap that works with their card (and wire/tshark). 




d

--
David Arnold
Mantara
Office:  +1 646 412-6928
Mobile: +1 201 993-5614


On 09/10/2012, at 10:16, Anders Broman <anders.broman () ericsson com> wrote:

> Hi,
> You can find some info on timestamps here http://wiki.wireshark.org/Timestamps
> Regards
> Anders
>
> From: wireshark-dev-bounces () wireshark org [mailto:wireshark-dev-bounces () wireshark org] On Behalf Of Marinucci 
> Elisabetta
> Sent: den 9 oktober 2012 11:46
> To: wireshark-dev () wireshark org
> Subject: [Wireshark-dev] FW: Accuracy of wireshark
>
> Dear all
> we’d like to use wireshark tool to validate our network system in terms of packets exchanged and time.
>  
> We will need to verify that certain packets are exchanged and verify the time between request and response on 
> Ethernet interface on PC with Windows server 2003 syncronized by NTP version 4 with a GPS server.
>  
> Do you have any Test Report or document that qualify the tool in term of its correct work?
> Do you have any document or Test Report that demonstrates that wireshark is able to capture all the packets exchanged 
> and to measure the time difference with correct accuracy?
>  
> Thanks a lot for your help.
>  
> Best Regards
>  
>  
> Elisabetta Marinucci
>  
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