We have a 5 switch stack of x460-48p. Our monitoring software, Solarwinds, is alerting us to high CPU usage very frequently and intermittently on this switch stack. However, when I use the 'top' command, I don't see CPU usage as high as what is being reported.
What CPU information is being shown when I run the 'top' command on the master of the stack?
What are some possibilities for the high CPU being reported?
Thanks,
Stan
Running the 'top' command just displays the CPU utilization of the node it is being run on. Not the entire stack.
I'm not sure how SolarWinds is getting CPU usage information for the switch or stack.
I'm not sure how SolarWinds is getting CPU usage information for the switch or stack.
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so here is another question....
I've noticed some ports flapping. Would high CPU cause that, or the other way around? it seems to be a bunch of random ports spread across the entire stack
I've noticed some ports flapping. Would high CPU cause that, or the other way around? it seems to be a bunch of random ports spread across the entire stack
You could have a loop. You could run elrp-client oneshot to find one. Excessive traffic hitting the slow-lane (cpu) of switch, instead of being moved to ASIC....
What process is high in top?
What process is high in top?
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What process is high in top?
it fluctuates while i'm watching top
I apologize but I don't know what elrp-client is
Also, no users are complaining of performance issues.
I'm beginning to wonder if Solarwinds is sending a false positive alert. While watching top on the master node, I have not seen CPU go above say 55%, but the issue might be on a different node, I haven't figured that out yet.
What process is high in top?
Jeremy-x460.1 # configure elrp-client one-shot "WirelessAP" ports all print-and-log
Starting ELRP Poll . . .
# NO LOOP DETECTED # --- vlan "WirelessAP" elrp statistics ---
3 packets transmitted, 0 received, ingress port (nil)
* Jeremy-x460.2 #
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What process is high in top?
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No loops were detected using ELRP for any of our VLANs.
Any other suggestions?
Any other suggestions?
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I also made sure that all edge ports were running edge-safeguard, which they are. So I can check that off of my list.
I'm running out of ideas as to why high CPU utilization is being reported.
/sigh
I'm running out of ideas as to why high CPU utilization is being reported.
/sigh
I'm running out of ideas as to why high CPU utilization is being reported.
/sigh
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