Thanks – clearing out some modules now..

With a stock Cisco 3850 switch – the CPU goes insane… that’s really a buggy box though – the IOS XE has been a bust… the old 3750X’s were so much more stable and reliable…

We are getting high cpu polling them

From: observium [mailto:observium-bounces@observium.org] On Behalf Of Tristan Rhodes
Sent: Sunday, March 15, 2015 01:07 AM
To: Observium Network Observation System
Subject: Re: [Observium] High CPU on Cisco Switches

Joseph,

Thanks for the feedback! You can also accomplish something similar by disabling the poller modules that cause high CPU on a device.

1) Using the web-interface, click on the device with high CPU.

2) Click on the "Gear" icon on the right side to edit device settings.

3) Click on the "Modules" tab

4) Now you can disable the modules that you don't want Observium to attempt on this device

Note that you can also disable poller modules globally by editing the "config.php" file. Here are some of the options you can set:

http://observium.org/wiki/Configuration_Options#Poller_and_Discovery_Modules

Cheers!

Tristan

Tristan Rhodes
Network Engineer

Weber State University

801.626.8549

On Sat, Mar 14, 2015 at 9:47 PM, Joseph L. Brunner <joe@affirmedsystems.com> wrote:

Team,

We had some cisco switches dropping packets with 99% cpu being polled by Observium.

We had to create a view which hides some arp and routing table objects to bring the CPU back down to normal levels

snmp-server view cutdown at excluded

snmp-server view cutdown snmpUsmMIB excluded

snmp-server view cutdown snmpVacmMIB excluded

snmp-server view cutdown snmpCommunityMIB excluded

snmp-server view cutdown ip.21 excluded

snmp-server view cutdown ip.22 excluded

snmp-server community ourcomm1 view cutdown RO

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