100% SNMP Loss during polling of an interfaces on a router.

Products

• CA NetVoyant (NetQoS / NV)

Issue/Introduction

Symptoms: 

One or more interfaces on a device are not able to be polled while others on the device are polled fine. Those interfaces that do not poll return the following error in the NetVoyant Event log:

Description: ifstats: polling failed for <DeviceName>::Tu0 -: 100% SNMP Loss

Environment:  

NetVoyant 7.1

Windows 2003/2008

Cause: 

This could be related to the devices SNMP engine having difficulty with bulk SNMP requests.

Resolution:

To resolve open the NetVoyant Console:

Find the device in question > select the Properties tab > click Add > enter the following

         Name:          isGet

         Value:          1

Click OK

Environment

Release:
Component: NQNVYT