Thank you and thakx to Edward Jaffe in Sunny LA for helping me get a
grip on this project
Sent from my iPhone
On Nov 4, 2009, at 10:06 AM, Rob Scott <rsc...@rocketsoftware.com>
wrote:
That is why it is always a good idea to disallow the ephemeral port
number range (1024-4999) for your own server application port
otherwise you can get occasional EADDRINUSE situations.
Rob Scott
Developer
Rocket Software
275 Grove Street * Newton, MA 02466-2272 * USA
Tel: +1.617.614.2305
Email: rsc...@rs.com
Web: www.rocketsoftware.com
-----Original Message-----
From: IBM Mainframe Discussion List [mailto:ibm-m...@bama.ua.edu] On
Behalf Of J R
Sent: 04 November 2009 14:59
To: IBM-MAIN@bama.ua.edu
Subject: Re: Final Confusions on Concurrent Server
Multiple concurrent connections between a client and server are
achieved by use of so-called "ephemeral ports" at the client end.
The port number at the server end is predetermined and fixed so
that a client always knows where it has to connect to.
It is not necessary that the port number at the client end be
known ahead of time since no one needs to connect to it.
Rather, a server needs to respond to it and knows what it is
from the connection request.
=======
Date: Tue, 3 Nov 2009 17:13:58 -0800
From: hwill...@megapathdsl.net
Subject: Re: Final Conlusions on Concurrenrt Server
To: IBM-MAIN@bama.ua.edu
"Shmuel Metz , Seymour J." wrote:
In <000001ca5b6c$532d3e30$f987ba...@net>, on 11/01/2009
at 10:26 PM, Joe Reichman <joereich...@optonline.net> said:
Here are my Final Conclusions These can only be one Active
Conversation
between a Client and Server on a port (if its between two different
machines)
If the client is using multiple port numbers then it should be able
to
sustain multiple conversations with a single server. TCP/IP does not
allow
concurrent multiple conversations between a single src-IP:port
dst-IP port
pair.
Actually, technically speaking, TCP/IP has no concept of a
conversation.
TCP/IP provides a reliable point to point connection over which you
can have
as many conversations as you want.
--
Shmuel (Seymour J.) Metz, SysProg and JOAT
ISO position; see http://patriot.net/~shmuel/resume/brief.html
We don't care. We don't have to care, we're Congress.
(S877: The Shut up and Eat Your spam act of 2003)
Regards,
Henry
_________________________________________________________________
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