topic Number simultaneous connection in Operating System - HP-UX

Number simultaneous connection

richard_kouadio — Sat, 18 Sep 2010 19:45:39 GMT

Hi everybody,
Are there sommebody to to give some lights.
The number of connection to a hpux 11iv3 is it limited.
We have a hpux 11iv3 server (rx6600). We have to etablish 200 simultuneous connection ( via telnet). But after 60 connections the over connection failed. I would know if is exist a parameter that i can change to be able to etablish all connection.
Thx in advance for your help.

Re: Number simultaneous connection

Dennis Handly — Sat, 18 Sep 2010 20:34:34 GMT

See nstrtel(5). Some other threads about this issue and using insf(1m) to create the device files:
http://forums.itrc.hp.com/service/forums/questionanswer.do?threadId=1344064

Re: Number simultaneous connection

nightwich — Mon, 20 Sep 2010 12:14:14 GMT

Hi Richard

It is a kernel parameter you have to change it using sam:

root@xxxxx:/# kctune | grep -i nstrtel
nstrtel 60 Default

Reards

Re: Number simultaneous connection

Bill Hassell — Mon, 20 Sep 2010 13:01:01 GMT

Actually, you need two steps.

The kernel parameters nstrtel, nstrpty and npty are probably all at 60. Set them all to 500 (for future expansion). Then run insf -e to install the additional device files. Without insf, you'll stop at 60 connections because there are no additional device files available.

The 3 kernel parameters should always be set the same. Although you could go through your system looking for the different connection types and allocate as needed, it is much simpler to set them all the same.

Re: Number simultaneous connection

richard_kouadio — Tue, 21 Sep 2010 09:32:36 GMT

Thx Expert,
You have all right.
Special Thank to Bill Hassell you answer is the most complete and have permit me to resolve my issue.

Thx again.

Re: Number simultaneous connection

richard_kouadio — Tue, 21 Sep 2010 09:34:19 GMT

Thx to all