We ran into SNMP memory leaks on our Force10 S4810 switches, which eventually hung the devices and required a hard power reset. (Yuck!)

Dell has published new software that might fix this (Note: I have not tested this yet, and there are still some open SNMP bugs):

(Sadly, this link requires login)

https://www.force10networks.com/CSPortal20/Software/documentation/S4810_RN_9.6(0.0).pdf

Resolved Caveats:

PR# 139394

Severity: Sev 2

Synopsis: System in stacking configuration may reboot when SNMP operations are executed to retrieve CPU/Memory utilization statistics

PR# 140566

Severity: Sev 2

Synopsis: The system does not return valid data when SNMP Get operations are performed to retrieve CPU and memory utilization statistics

Tristan Rhodes
Network Engineer

Weber State University

801.626.8549

On Mon, Feb 23, 2015 at 3:48 PM, Arya, Renuka [BSD] - MED <rarya@medicine.bsd.uchicago.edu> wrote:

Hi All,

Couple of our Force 10 (S4810) Switches are reporting high CPU usage which seems to be caused by snmp processes. This is impacting the network performance.

Do we know the MIBS (modules) that cause high load? And how can we disable these MIBs.

Thanks!

Regards

Renuka

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