
That is kind of weird. I had a 7 3650 running the recommended IOS XE release (3.3.5SE) and no issue with the default polling options.
Were these particularly busy switches?
On 3/15/2015 1:32 AM, Joseph L. Brunner wrote:
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.
Using the web-interface, click on the device with high CPU.
Click on the "Gear" icon on the right side to edit device settings.
Click on the "Modules" tab
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 mailto: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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