Assessing Application Network Overhead

Hi, I am in the process of developing a small application that sits in
the task bar and at a set interval polls an IIS web server for
information. The process involves the client sending anything between 3
and 30 characters of data and the server returning anything up to 50
characters of data.

I need to identify the overhead on the network so I can determine the
network utilisation of the application. The sort of questions I need to
be able to answer are:

1. Determine where bottlenecks exist (i.e - IIS processing versus
Network bandwidth)
2. The overall network overhead for a single client polling the server
once, including Ethernet overhead packets.
3. Determine the data payload of a single transaction
4. Determine the maximum number of synchronous transactions that the IIS
server can process before reaching breaking point

I would be grateful for any advice you can offer to help devise a
process for testing an applications network utilisation requirements
along with any network monitoring tool recommendations you may have.

Many thanks in advance,

Regards,
Mark.

Hello,

You can trace the trafic with Microsoft Network Monitor:
http://www.microsoft.com/downloads/d...displaylang=en

In load test, you must determine:
-The maximum load your actual configuration can handle. How to handle more
(scale up/down)
-The real goal your application must reach(aka my product is for Small
Businees, i may expect 15 concurrent users)
-Is the application going to be used on wan or limited bandwith network ?
-May i allow a better experience to user by letting them choosing the
refresh rate ?
-Can my application use compressed http with my iis (which must also be
configured for compressed traffic) ?
-Will SSL be used (more overhead) ?

My 2 cents,


--
Cordialement,
Mathieu CHATEAU
http://lordoftheping.blogspot.com


"mark" <(E-Mail Removed)> wrote in message
news:46c94fac$0$21092$(E-Mail Removed)...
> Hi, I am in the process of developing a small application that sits in the
> task bar and at a set interval polls an IIS web server for information.
> The process involves the client sending anything between 3 and 30
> characters of data and the server returning anything up to 50 characters
> of data.
>
> I need to identify the overhead on the network so I can determine the
> network utilisation of the application. The sort of questions I need to be
> able to answer are:
>
> 1. Determine where bottlenecks exist (i.e - IIS processing versus Network
> bandwidth)
> 2. The overall network overhead for a single client polling the server
> once, including Ethernet overhead packets.
> 3. Determine the data payload of a single transaction
> 4. Determine the maximum number of synchronous transactions that the IIS
> server can process before reaching breaking point
>
> I would be grateful for any advice you can offer to help devise a process
> for testing an applications network utilisation requirements along with
> any network monitoring tool recommendations you may have.
>
> Many thanks in advance,
>
> Regards,
> Mark.