[stunnel-users] Stunnel Scalability Question

This is a multipart message in MIME format.
--===============0814686821==
Content-Type: multipart/alternative; boundary="=_alternative 005ECAE98825731C_="

This is a multipart message in MIME format.
--=_alternative 005ECAE98825731C_=
Content-Type: text/plain; charset="US-ASCII"

Hi,

I have an application with the following characteristics and am trying to
determine if Stunnel would be a suitable option for securing my
transmissions (in particular, will it scale):

- Each of my clients is connected to the Internet via a 56Kbps modem. My
server has whatever bandwidth it needs.

- Each client "transaction" consists of (a) connecting to a central server
using a TCP/IP-based protocol, (b) uploading a 512KB block of data and (c)
disconnecting.

- Our server needs to be able to handle 2000 concurrent clients under peak
loads.

- Under the peak load above, I would like to limit the time a client takes
to perform a "transaction" to around five minutes or so (uploading 512KB
at (56Kbps / 2) = 28Kbps should take ~2.5 minutes).

My questions are:

(1) Do I have any reason to believe that Stunnel will simply not be able
to scale to handle the load described above (i.e. a steady load of 2000
concurrent clients connecting, uploading half a megabyte of data and
disconnecting)?

(2) If Stunnel can handle this - do you have any thoughts on what sort of
machine (or machines) I should be running my server-side Stunnel daemon(s)
on? I am particularly concerned about CPU usage.

I apologize in advance for any overlap between this query and past threads
in the archive/information on the website - I wanted to make sure that I
ran the specific requirements above past somebody with experience using
Stunnel.

Thanks,

Ankur
--=_alternative 005ECAE98825731C_=
Content-Type: text/html; charset="US-ASCII"


<br><font size=2 face="sans-serif">Hi,</font>
<br>
<br><font size=2 face="sans-serif">I have an application with the following
characteristics and am trying to determine if Stunnel would be a suitable
option for securing my transmissions (in particular, will it scale):</font>
<br>
<br><font size=2 face="sans-serif">- Each of my clients is connected to
the Internet via a 56Kbps modem. &nbsp;My server has whatever bandwidth
it needs.</font>
<br>
<br><font size=2 face="sans-serif">- Each client &quot;transaction&quot;
consists of (a) connecting to a central server using a TCP/IP-based protocol,
(b) uploading a 512KB block of data and (c) disconnecting.</font>
<br>
<br><font size=2 face="sans-serif">- Our server needs to be able to handle
2000 concurrent clients under peak loads.</font>
<br>
<br><font size=2 face="sans-serif">- Under the peak load above, I would
like to limit the time a client takes to perform a &quot;transaction&quot;
to around five minutes or so (uploading 512KB at (56Kbps / 2) = 28Kbps
should take ~2.5 minutes). &nbsp;</font>
<br>
<br><font size=2 face="sans-serif">My questions are:</font>
<br>
<br><font size=2 face="sans-serif">(1) Do I have any reason to believe
that Stunnel will simply not be able to scale to handle the load described
above (i.e. a steady load of 2000 concurrent clients connecting, uploading
half a megabyte of data and disconnecting)?</font>
<br>
<br><font size=2 face="sans-serif">(2) If Stunnel can handle this - do
you have any thoughts on what sort of machine (or machines) I should be
running my server-side Stunnel daemon(s) on? &nbsp;I am particularly concerned
about CPU usage.</font>
<br>
<br><font size=2 face="sans-serif">I apologize in advance for any overlap
between this query and past threads in the archive/information on the website
- I wanted to make sure that I ran the specific requirements above past
somebody with experience using Stunnel.</font>
<br>
<br><font size=2 face="sans-serif">Thanks,<br>
<br>
Ankur</font>
--=_alternative 005ECAE98825731C_=--

--===============0814686821==
Content-Type: text/plain; charset="us-ascii"
MIME-Version: 1.0
Content-Transfer-Encoding: 7bit
Content-Disposition: inline

_______________________________________________
stunnel-users mailing list
stunnel-users@mirt.net
http://stunnel.mirt.net/mailman/listinfo/stunnel-users

--===============0814686821==--