Testing limitations

[cpnet]

I'm trying to test my ASP.NET app on my XP Pro machine using ACT, but I'm
just learning how to use ACT. I think I read that XP Pro only allows a max
of 10 simultaneous connections over the LAN. I'm doing my testing all on my
local machine, but will IIS on my XP limit the number of concurrent
connections from my ACT test to IIS? (I'm seeing a lot of errors as I
increase the number of simultaneous connections - error 403 - "The server
understood the request but is refusing to fullfill it"). Does this mean my
app has a problem, or I don't have my IIS server set up right?

Similarly if I try my test on my SBS 2k3 machine, will IIS limit the number
of concurrent connections I have?

My application does not provide any "log on" functionality, however, I've
turned on impersonation if that makes any difference here.

Any info is greatly appreciated.

 

[Mark Fitzpatrick]

All the workstation versions of the NT OSes, including Win XP, have a
maximum of 10 simultaneous network connections. This does not mean that IIS
has a maximum of 10 simultaneous connections, it means you probably have
less because often software uses more than one connection when performing a
network operation and other parts of the OS could be using up a connection
or two. Sometimes you can even run into this problem in normal testing
without using ACT.

Probably the 403 means that you're running into the XP connection limit. A
true server OS member of the Windows family won't have the 10 connection
limit so you should be in good shape there as the limit is more the number
of connections trying to talk to a Win XP box as opposed to a server.

Hope this helps,
Mark Fitzpatrick
Microsoft MVP - FrontPage

 

[cpnet]

Found out that for XP Pro, I am limited to 10 TCP connections, but a typical
browser session uses 2, so I guess that means that I only get 5 concurrent
sessions... unless this doesn't count when everything's local.

But it seems that I may have to install a test 2k3 machine.

 

[Steven Cheng[MSFT]]

Hi Cpnet,

Yes, you're right. the XP pro has the 10 tcp connection limitation and
since may other network shared such as UNC shared may also occupied some of
them and the IE will use two for each request , so we'd better perform our
web application (especially stress test ) on a server machine. Thanks.


Regards,

Steven Cheng
Microsoft Online Support

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