EPICS Home EPICS Controls Argonne National Laboratory

Experimental Physics and
Industrial Control System

Format page
for printing


Search Tech-talk
1994  1995  1996  1997  1998  1999  2000  2001  2002  2003  2004  2005  2006  2007  2008  2009  2010  2011  2012  2013  <2014>  2015  2016  2017  2018  2019  2020  2021  2022  2023  2024  Index 1994  1995  1996  1997  1998  1999  2000  2001  2002  2003  2004  2005  2006  2007  2008  2009  2010  2011  2012  2013  <2014>  2015  2016  2017  2018  2019  2020  2021  2022  2023  2024 
<== Date ==> <== Thread ==>
Subject: TCP and UDP port numbers fr multiple IOCs
From: Hovanes Egiyan <[email protected]>
To: "[email protected]" <[email protected]>
Date: Wed, 21 May 2014 15:34:16 -0400 
Hi,

we are running multiple soft IOC-s on the same Linux host.
Right now each IOC is assigned a TCP port automatically since we do not set
the EPICS_CA_SERVER_PORT and EPICS_CAS_SERVER_PORT variables.
All these IOC-s are listening to UDP port 5064 and now we setup CA clients to 
look for CA channels using 5064 port and the the network broadcast address.
Another option, according to the manual, is to manually set the server port # 
using EPICS_CAS_SERVER_PORT variable, but that also seems change the
UDP port # for the name resolution for that IOC, which means that the clients will need to be setup to use UDP port # different from default. Looking at the CA manual at 

http://www.aps.anl.gov/epics/base/R3-14/8-docs/CAref.html
I did not find a way to set the TCP port manually using EPICS_CAS_SERVER_PORT or EPICS_CA_SERVER_PORT but keeping the UDP port number at 5064, similar to what happens 
when the  TCP address is assigned automatically. But before giving up on
that idea, I would like to get confirmation from EPICS experts that I did not miss it and such 
flexibility does not exist now.

We are using R3-14-12-3 EPICS base.

Thanks in advance,
    Hovanes Egiyan
Replies:
Re: TCP and UDP port numbers fr multiple IOCs Andrew Johnson
Navigate by Date:
Prev: Re: procServ and user id Konrad, Martin
Next: Re: TCP and UDP port numbers fr multiple IOCs Andrew Johnson
Index: 1994  1995  1996  1997  1998  1999  2000  2001  2002  2003  2004  2005  2006  2007  2008  2009  2010  2011  2012  2013  <2014>  2015  2016  2017  2018  2019  2020  2021  2022  2023  2024 
Navigate by Thread:
Prev: Re: procServ and user id Ralph Lange
Next: Re: TCP and UDP port numbers fr multiple IOCs Andrew Johnson
Index: 1994  1995  1996  1997  1998  1999  2000  2001  2002  2003  2004  2005  2006  2007  2008  2009  2010  2011  2012  2013  <2014>  2015  2016  2017  2018  2019  2020  2021  2022  2023  2024 
ANJ, 17 Dec 2015 Valid HTML 4.01! · Home · News · About · Base · Modules · Extensions · Distributions · Download ·
· Search · EPICS V4 · IRMIS · Talk · Bugs · Documents · Links · Licensing ·