Experimental Physics and
Industrial Control System

Michael Davidsaver via Core-talk <core-talk at aps.anl.gov> · Tue, 8 Nov 2022 21:14:38 -0800

On 11/8/22 13:00, Kim, Kukhee via Core-talk wrote:

Hi Everyone,

We just realized that some of our servers send out packets to port 5076 in multicasting address.

What multicast address(es) are you seeing?

Can you look (with packet capture) to see if these are
search or beacon messages?

Since, the multicasting address is used for some of specific services, we would like to prevent the PVA, PVXS traffic to the multicasting address.

PVXS should not send any multicast traffic by default.
(we have no assigned addresses to use for PVA)

Is there any PVA environment variables to control it?

https://mdavidsaver.github.io/pvxs/netconfig.html

There are a couple, all of the form EPICS_PVA*_ADDR_LIST

Thank you so much for your help and support!

Best regards,
Kukhee

Kukhee Kim | *Engineering Physicist *

Advanced Controls Department

SLAC National Accelerator Laboratory | Menlo Park, CA

p: 650.926.4912 | m: 669.300.8192 | email: khkim at slac.stanford.edu

Experimental Physics and Industrial Control System

Experimental Physics and
Industrial Control System