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<== Date ==> <== Thread ==>

Subject: Gateway 2.0.0.0 Released
From: "Kenneth Evans, Jr." <evans@aps.anl.gov>
To: <tech-talk@aps.anl.gov>
Date: Mon, 3 Oct 2005 15:33:55 -0500
Hi,

     This is to announce the official final release of Gateway 2.0.  The
version number is Gateway 2.0.0.0.

     The Gateway is both a Channel Access server and Channel Access client
that provides a means for many clients to access a process variable while
making only one connection to the server that owns the process variable. It
also provides additional access security beyond that on the server. 

     The original version of the Gateway worked with EPICS Base 3.13 but
required a special version, since the changes necessary for its operation
were never incorporated into EPICS Base.  Version 2 works with any standard
EPICS Base 3.14.6 or later and has many improvements in both performance and
features over the older version.  The Gateway is now used at many
institutions and has become a stable, high-performance application.  It is
capable of handling tens of thousands of process variables with hundreds of
thousands of events per second.  It has run for over three months in a
production environment without having to be restarted.

     The Gateway has been in stable and nearly trouble free operation at the
APS for more than a year.  There are some known issues with the Alarm
Handler, that Ralph Lange will be looking at (when he has time).  The
Gateway depends heavily on Channel Access, and it is suggested that the
latest possible version be used.  Base 3.14.7 is the latest release of EPICS
Base, but there are more recent patches to Channel Access that fix problems
that occur in special circumstances.

     The Gateway builds on Solaris, Linux, WIN32, and Darwin.  It has been
extensively tested on Solaris and Linux.

     There is more information, including the Reference manual, several
papers, and a Tar file of the current version, at the Gateway web site:

http://www.aps.anl.gov/epics/extensions/gateway/index.php

	-Ken



Replies:
secure gateway Emmanuel Mayssat

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