Network Management

SNMP Service on F5 device crashes

This article provides brief information and steps to resolve the issue when the SNMP Service on F5 device crashing. Deleting the duplicate management route will resolve the issue temporarily. When the device is rebooted, the duplicate management route re-appears and the SNMP service on the device crashes again.

First published date

11/2/2018 2:24 AM

Last published date

11/15/2022 6:17 PM

Overview

This article provides brief information and steps to resolve the issue when the SNMP Service on F5 device crashing.

Scenario 1: Duplicate management route

When the device is rebooted, the duplicate management route re-appears and the SNMP service on the device crashes again.

Scenario 2: F5 Network insight polling on Orion 2020.2 and F5 v15.1, using SNMPv3
Enabling F5 Insight for any of them seems to cause the SNMP service on the F5's to crash and produce a core file, sometimes soon after enabling, other times after a few hours. We've not seen this on other hardware or versions and the period of time it takes to crash doesn't seem to be consistent.

Product section

Network Performance Monitor

Cause

The device is not able to handle SNMPv2c GET BULK requests properly.

Resolution

Change polling of this node from SNMPv2c to SNMPv1:

  1. Go to the Manage Nodes page of the web console (Settings > Manage Nodes).
  2. Select node that has the issue.
  3. Click Edit Properties.
  4. Change the SNMP version from SNMPv2c to SNMPv1.
  5. Click Submit.
Solution for scenario 2:  Increase SNMP timeout for F5.