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

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From: ronnie sahlberg <ronniesahlberg@xxxxxxxxx>
Date: Wed, 2 Feb 2005 09:07:20 +1100
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
>  
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