8-:)TCP/IP connections 1

[tzhong]

Hi there,

What's the maximum TCP/IP connections I can open concurrently on NT4.0(server)? how about windows2000?

I can't find any documentation on it anywhere. Please help!

-Tim

 

[pbxman]

TZ,

According to MS - there is no limit. You're only limited by the amount of liscences you have & whatever your machine/network can handle. I would think a theoretical limit would be at the 65K limit for TCP addressing - but that's essentially "limitless"...

Obiously, a Gigabit ethernet Server can handle more connections than a 10Mbit network without adversely affecting performance.

FYI - if using RAS, there is a limit of 256 connections (because of 256 port-limit).

Hope this answers it for ya!
later

 

[tzhong]

Hi pbx,

Thanks for the response. But does windows handle TCP/IP connections the same way for files (they both use handles)? I tried to open 1Meg file handles the same time but only crashed the program in the initialization phase.

Thanks!

-Tim

 

[pbxman]

Thats where it gets a little hairy, and depands on what you're using it for.
Here's some info on it I found on the Web...

Windows NT multiplexes all file requests to a single server over one virtual circuit. The SMB (Server Message Block) reserves 11 bits for the file handle, resulting in a maximum of 2048 file handles per connection.

If you're running Terminal Services - 2048 can easily be not enough with 200 clients using it. They'd be limited to only 10 open files.

Either way - trying to open multiple 1Meg files on a file server should be no problem. I dont think that is the issue with the program crashing. But - then again it all depends on what you're using.
I hope this was of some help for ya..