Ethereal-users: Re: [Ethereal-users] TCP Throughput for HTTP

Note: This archive is from the project's previous web site, ethereal.com. This list is no longer active.

From: Colin O'Keeffe <cokeeffe@xxxxxxxxx>
Date: Mon, 10 Jan 2005 16:47:00 +0000
okay,

i have this image from ethereal.

the blue line is the throughput of a http page with only text without
any encryption
the red line is the throughput with encryption.

does that look correct?
theres only simple text on the page, no images or javascript.




On Mon, 10 Jan 2005 11:20:57 +1100, Visser, Martin <martin.visser@xxxxxx> wrote:
> All of them probably! For instance I know that the standard MS IE
> browser opens up to 4 HTTP (TCP port 80) streams by default when you
> open a page that has lots of images imbedded. Each of the threads
> aggressively tries to download the images until all are done. Then after
> 30 secs they will FIN the connection. Assuming that your model is
> simple, that is the only thing on you web server box (IP address) is the
> HTTP web service, then just plot all the traffic between your browser
> and that IP address. If there are other things going on to that server
> (such as DNS) or if your web page includes images (or javascript gets
> content) from other servers the you will need to be more judicious with
> filtering to get the correct plot.
> 
> Martin Visser ,CISSP
> Network and Security Consultant
> Consulting & Integration
> Technology Solutions Group - HP Services
> 
> 3 Richardson Place
> North Ryde, Sydney NSW 2113, Australia
> 
> Phone: +61-2-9022-1670
> Mobile: +61-411-254-513
> Fax: +61-2-9022-1800
> E-mail: martin.visserAThp.com
> 
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> 
> > -----Original Message-----
> > From: ethereal-users-bounces@xxxxxxxxxxxx
> > [mailto:ethereal-users-bounces@xxxxxxxxxxxx] On Behalf Of
> > Colin O'Keeffe
> > Sent: Monday, 10 January 2005 9:43 AM
> > To: Ethereal-users@xxxxxxxxxxxx
> > Subject: [Ethereal-users] TCP Throughput for HTTP
> >
> > Hi,
> >
> > I want to meaure the TCP throughput used for loading a HTTP
> > page but i get alot of tcp packets,. 3 or four have the same
> > throughput graph, and about 3 more have the same graph but
> > there different to the other 3. which one should i be using?
> > 
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