On 08/06/2022 20:19, Christopher Wensink wrote:
Everyone,
From time to time on our network we experience a pause
where it seems like everything just hesitates for a time,
this could be 2-10 seconds, then communications resume and
everything is normal again.
I suspect that there one machine that is occasionally
sending out bad packets or is flooding the network when it
shouldn't, but I don't know for sure. I've tried scanning
with angry ip scanner to confirm IP addresses are set and
communicating as documented. I've tried running captures
with wireshark to try to identify one culprit but nothing
is sticking out.
I've tried tcpdump to see if something obvious is placed
there, but it's a flood of information and it's difficult
to tell what (if anything) is a problem and what is not.
I'm also working on setting up icinga for monitoring all
servers to see if that provides insight.
What other tools / tactics would you use to identify the
core cause of these kinds of intermittent pauses?
Chris
Though I can not recommend any specific tools, a learning
curve should be easy peasy, including tools/solution -
unless you already looked into it & have it covered - in old
days with Windowze NIC faulty drivers, OS own issues or
intentionally provoked network stack misbehavior would/could
put a device/NIC in the 'promiscuous' mode which would
results in network "acts" in ways you describe.
good luck, L.
_______________________________________________
CentOS mailing list
CentOS@xxxxxxxxxx
https://lists.centos.org/mailman/listinfo/centos
