Your roundtriptime seems to be ~1s
Boy must your GPRS provider be sub-optimal or what.
I am happy I wont have to run interactive applications, vpn or cifs
across that link.
(that kind of latency makes it pointless to anything else than FTP or
web-surfing).
Packet 237 is a TCP retransmission.
See how the sequence number has reversed backwards compared to packet 235.
Also see the >1 second delay between 236 and 237 until your third
dupack gets across and the other side issues the fast retransmission
737 is also a retransmission.
857 and 859 are also retransmissions, see the sequence numbers.
I.e. ethereal reports 4 retransmissions and all of them are indeed
retransmissions.
==> ethereal is right for these 4.
packet 43, this should be reported as a retransmission and not out of order.
Ethereal got that one wrong.
On 6/29/05, Y Z <ommy_ss@xxxxxxxxx> wrote:
> Hi all
>
> Sorry if I forget not all can accept big size attachment (as I use Yahoo and
> Gmail). I attached only the pdf file this time which I hope everyone can
> view. Otherwise, please inform me in what format that is preferable. I also
> would like to add that I didn't zoom the Time Sequence plots I have in my
> attachment. So what you will see is the comparison between the plot which I
> got from tcptrace and ethereal (Steven's style) which is basically look the
> same. But those transmitted packets reported by tcptrace is considered as
> out-of-order packets and vice versa. Also tcptrace reported an extra
> retransmitted packet (this one occurred after one out-of-order packet and in
> the tcptrace plot you will find the marks on top of each other) which
> ethereal did not report (either as out-of-order or retransmitted).
>
> by the way if anyone would like to have a zoom view of the plots or the raw
> capture file I can email them.
>
> Apologize for any inconvenience.
>
> This time I hope I really get some info on this.
>
> Regards
>
>
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