Re: [Ethereal-users] TCP previous segment lost, DUP ACK question

[Mike.Li@xxxxxxxxxxx]

Thanks for reply. But could one determine
whether if the problem resides in source network or destination network
? I assume that you can see the screen capture which I send in my original
email.

ronnie sahlberg <ronniesahlberg@xxxxxxxxx>
Sent by: ethereal-users-bounces@xxxxxxxxxxxx

02/01/2005 05:07 PM

Please respond to
ronnie sahlberg <ronniesahlberg@xxxxxxxxx>; Please respond to
Ethereal user support <ethereal-users@xxxxxxxxxxxx>

To	Ethereal user support <ethereal-users@xxxxxxxxxxxx>
cc
Subject	Re: [Ethereal-users] TCP previous segment lost, DUP ACK question

yes   it is very likely that a segment was lost
by the network and
therefore triggering a dup ack when the next segment was received.

networks are unreliable and you WILL get packetloss in ALL networks.
this is only a problem if you get too many dropped packets  so you
get
a lot of retransmission timeouts.




On Tue, 1 Feb 2005 16:53:40 -0500, Mike.Li@xxxxxxxxxxx
<Mike.Li@xxxxxxxxxxx> wrote:
>  
> HI :
>  Based on the screen capture below where one can see "Previous
segment lost"
> and "DUP ACK", could one determine if the source or the
destination is the
> problem network? Thank you in advance. 
>  
>  
> Best regards,
>  Mike  Li
>  
> _______________________________________________
> Ethereal-users mailing list
> Ethereal-users@xxxxxxxxxxxx
> http://www.ethereal.com/mailman/listinfo/ethereal-users
> 
> 
>

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