Ethereal-users: Re: [Ethereal-users] Packet Loss

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From: fonte fonte <fonte_monte@xxxxxxxxx>
Date: Mon, 8 May 2006 23:36:38 -0700 (PDT)
Hi,

Thanks for the answer. I get what you mean. So how do I get total data packet that are lost? Is there a sort of guideline on acceptable or normal data packet loss on every network (and I'm especially interested in GPRS network) whereby these losses don't really have a significant impact on network performance?

Thanks.

Hansang Bae <hbae@xxxxxxxxxx> wrote:
On 03:07 AM 5/8/2006, fonte fonte wrote:
>Hi all,
>I'm wondering whether the total of packets being retransmitted is equivalent to the total of packets being lost/damaged assuming no packets are dropped during capture?


No since multiple retransmission for lost packet is the norm. In fact, triple duplicate acks are used for fast retransmissions. Triple duplicate acks sounds like an oxymoron, but all it means is that host A saw the same ACK coming from host B three times. At this point, host B can assume that packet loss has occurred and will retransmit immediately.

hsb

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