EXOS SNMP filter

[Chris]

Hi,
is it possible to filter snmp message from EXOS?
I want to do a snmpbulkwalk to a switch with more than 800 VLAN's. The snmpbulkwalk need more than 5 minutes. This is fatal for my rrd graphs.
Can I dismiss all VLANs (IF-MIB::ifDescr.1000001 ... >1000000) so that the bulkwalk doesn't get this informations?

[Chris]

I tried librenms but it's the same poller mechanism as observium uses it.

[Chris]

@Frank - observium is very helpful but it is only usable if the snmp poller need less than 5 minutes 😕
@ James - thank you very much for this notice. I will try this tool asap.

[James_A]

You may want to consider using the LibreNMS fork of Observium, the developers would be interested in your bug.

[Frank]

Ah, Observium  I've played with that as well - and yes, it seems to want to query *EVERYTHING* on the devices, and I have noticed it takes a while on its queries. I may have to revisit that, but that might take me a bit, as I'm not using it actively in production.

[Frank]

I'm not sure if you can teach EXOS to limit SNMP replies, but have you considered playing with "-Cn" and "-Cr" in snmpbulkwalk /snmpbulkget ? (See http://www.uow.edu.au/~blane/netapp/ontap/nag/networking/concept/c_oc_netw_snmp_command_examples.htm... in addition to the man-page)

Also, if you're using Cacti for your graphs, I presume you've already switched to "spine" as your poller?
And here's a "limit OIDs / tune cacti" page that I should probably implement to some extent as well: http://realworldnumbers.com/cacti-tuning-how-to-set-maximum-oids-per-get-request/

HTH,

Frank