Experimental Physics and
Industrial Control System

Kevin Peterson via Tech-talk <tech-talk at aps.anl.gov> · Tue, 16 Feb 2021 14:25:46 -0600

Olivier,

I've seen CA misaligned protocol errors on IOCs at the APS in the past.

 I believe they were caused by network security scans run by the IT

group. There was a strong correlation between the error messages and

shutdown days, which is the only time IT scans the beamlines.

IOCs usually didn't need to be restarted after the errors occurred. I

believe Windows IOCs were the exception. I vaguely recall the scans

crashing Windows IOCs.

Kevin

On 2/16/21 5:15 AM, Delahaye Olivier via Tech-talk wrote:

Hi,

I'm working at GANIL in Caen, France.

We are currently using EPICS 3.14.12.4. We are facing issues about UDP

CAS. (UPD: "CAS: Missaligned protocol rejected).

For that, we are wondering whether or not it would be interesting to

switch on a more "up to date" version.

I would like to know what is the latest "stable" version of EPICS ?

I read in your download page there was "stable" versions and "current"

versions. What are exactly the differences between "current" and "stable" ?

Are current versions stable or not ?

Thx for your answer,

Olivier Delahaye

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Experimental Physics and Industrial Control System

Experimental Physics and
Industrial Control System