We recently installed our first WS-C3850-48P switches. NPM has been reporting high memory utilization, which is attributed to the lsmpi_io reading. I saw that there were similar issues with Cisco ASR devices and a customer poller was created. Are there any pollers out there than can show the correct memory utilization for the 3850's, or an incoming update to the existing MIB? Thanks.
"switch-a" #show memory free
Total(b) Used(b) Free(b) Lowest(b) Largest(b)
Processor 916107072 310302384 605804688 600460920 601617972
lsmpi_io 6295128 6294304 824 824 412
I ran into this issue on a pair of Cisco 4451 Gen 3 ISR routers. Same issue with lsmpi_io. I followed the directions under A Node Shows Incorrect CPU & Memory Utilization - SolarWinds Worldwide, LLC. Help and Support
In my specific case, I changed the N.Memory.SNMP.CiscoGen4 memory poller to the N.Memory.SNMP.CiscoGen3 poller and they're now showing correct usage values.
I ran into the same issue myself on a WS-C3850-12XS-E, and followed the recommendations at this link:
I selected and checked each supported poller until I found one that reported the right results.
Hope this helps.
Did you find an appropriate poller to use for your 3850s? I'm actually running into the same thing. I don't believe it is reporting on the lsmpi_lo value though. It is reporting on the output of the following command:
show platform software status control-processor brief
If you take the Used sum / Total sum, you will get the percentage that Solarwinds is reporting. Currently my Active/Standby switches run at about 84% and my Member switches run at about 51%. What this leads to is the switch stacks that have more switches show considerably less memory usage than 1 or 2 switch stacks, since the more Member switches in the stack bring down the average. I'm looking to get something that shows a more consistent memory percentage across the switches stacks that have varying amounts of switches in them.
Brendan, the tldr version is that no, we have not found the right poller. Our switch stack only has three switches in it currently, so it's not maxed out. Has anyone else found something?
I'm running into similar issues you all describe. Seems the mibs being polled by default are not accurate and i have also tried making my own custom poller using
220.127.116.11.18.104.22.168.22.214.171.124.5 (used) 354916752
126.96.36.199.188.8.131.52.184.108.40.206.6 (free) 497362912
no luck though as the numbers do not come close to show platform resources.
Any help is much appreciated.
I found the mibs which are tables and then created custom pollers
220.127.116.11.18.104.22.168.22.214.171.124.1.12 - mem used
126.96.36.199.188.8.131.52.184.108.40.206.1.13 - mem free
Manipulate as you see fit. Did the trick for us.
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