If you have console / command prompt of some type, most operating systems have a ping command that uses ICMP to test connectivity and routrip delay to a remote host and back. But I don't know what OS or environment is running on your endpoints.
On Thu, Mar 13, 2008 at 4:05 PM, Fabiana moreno <[EMAIL PROTECTED]> wrote: > how can do the ping? I dont know what this is > > > On 13/03/2008, Martin Mathieson <[EMAIL PROTECTED]> wrote: > > > > You could of course do a ping. And see how close to the middle the far > > side sees something happen... > > > > On Thu, Mar 13, 2008 at 2:49 PM, Fabiana moreno <[EMAIL PROTECTED]> > > wrote: > > > > > Well i did this...but i dont know if it's ideal...i think it would > > > work though.... > > > > > > I synchronized the two computers to a server on the internet before > > > every capture so both have the exact same time. > > > > > > i have my sniffer in the two computers, the one that sends and the > > > ones that receive. > > > > > > I created a function in matlab that calculates the difference between > > > those two times... > > > > > > I am being really carefull when i have a packet lost or things like > > > that.... > > > > > > But probably this can work???? ... > > > > > > On 13/03/2008, [EMAIL PROTECTED] <[EMAIL PROTECTED]> wrote: > > > > > > > > Hi Fabiana, > > > > > > > > the only way to do that is if you know the time difference between > > > > the machines. > > > > It´s not so easy however if you use windows you could try > > > > synchronizing both endpoints by using: > > > > w32tm /config /manualpeerlist:[IP to synchronize to] /update > > > > /syncfromflags:MANUAL > > > > > > > > and then monitor the time difference with: > > > > w32tm /stripchart /computer:[IP to synchronize to] > > > > > > > > ,you always can have a delay reference by pinging and dividing by 2 > > > > the RTT. > > > > > > > > HTH > > > > Juan > > > > > > > > > > > > ------------------------------ > > > > *From:* [EMAIL PROTECTED] [mailto: > > > > [EMAIL PROTECTED] *On Behalf Of *ext Fabiana > > > > moreno > > > > *Sent:* Miércoles, 12 de Marzo de 2008 09:38 a.m. > > > > *To:* Community support list for Wireshark > > > > *Subject:* Re: [Wireshark-users] end-to-end delay calculation > > > > > > > > so ... it is not reliable if i substract the time i hav in the > > > > client minus the time i have in the server to get my end the end delay? > > > > > > > > On 12/03/2008, Hansang Bae <[EMAIL PROTECTED]> wrote: > > > > > > > > > > Fabiana moreno wrote: > > > > > > Hello there, > > > > > > > > > > > > I know wireshark is not able to calculate the end-to-end delay > > > > > of a > > > > > > packet when streaming. I was just wondering if adjusting the > > > > > clocks of > > > > > > my two computers(sender and receiver) to the network time > > > > > protocol and > > > > > > having the sniffer at both ends i could calculate the > > > > > end-to-end-delay > > > > > > tracing each packet. Does this sound logical? > > > > > > > > > > > > > > > > > > > > > It is within the limits of ntp. Unless there is a WAN involved, > > > > > the > > > > > packets are flying around at an order of magnitude faster than > > > > > what ntp > > > > > can provide (ms resolution) > > > > > > > > > > -- > > > > > > > > > > Thanks, > > > > > Hansang > > > > > _______________________________________________ > > > > > Wireshark-users mailing list > > > > > Wireshark-users@wireshark.org > > > > > http://www.wireshark.org/mailman/listinfo/wireshark-users > > > > > > > > > > > > > > > > > _______________________________________________ > > > > Wireshark-users mailing list > > > > Wireshark-users@wireshark.org > > > > http://www.wireshark.org/mailman/listinfo/wireshark-users > > > > > > > > > > > > > > _______________________________________________ > > > Wireshark-users mailing list > > > Wireshark-users@wireshark.org > > > http://www.wireshark.org/mailman/listinfo/wireshark-users > > > > > > > > > > _______________________________________________ > > Wireshark-users mailing list > > Wireshark-users@wireshark.org > > http://www.wireshark.org/mailman/listinfo/wireshark-users > > > > > > _______________________________________________ > Wireshark-users mailing list > Wireshark-users@wireshark.org > http://www.wireshark.org/mailman/listinfo/wireshark-users > >
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