RE: packet loss probability

From: [email protected]
Date: Fri Nov 19 1999 - 13:38:10 EST


Actually, it is worth noting (based on a number of studies including one
done by MCI a while ago) that about 55-65% of the Internet packets are of
size 40-44 bytes. HTTP packets are definitely more than that because they
include the HTTP hdr. which is inherently large (relatively).

--------------
Osama Qadan - INTELSAT Broadband Program

Just a small nit:
>
> [email protected] writes:
>
> ...
> > As Lloyd Wood and others have pointed out, this figure
> gives the raw packet
> > error rate. The impact on the transport protocol (TCP, what
> have you) is
> > different. For example, if your TCP MTU is say 576 octets,
> and the size of
> > the packets at layer 2 over the radio link are 100 octets
> we could compute:
> > (a) approx 40% of the TCP packets would be less than 100
> octets. These map
> > to acks, HTTP get messages, cache validation queries, etc.
> These would show
> > the b*p packet error rate.
>
> The times when I have looked, I haven't seen an HTTP get message which
> is smaller than 100 bytes. I doubt if this is even possible. Off the
> top of my head, typical sizes are 200-500 bytes.
>
> --Jamshid
>



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