Authentication failure for SNMP request in DX NetOps Performance Management (DX NetOps Portal) and NetQoS (NFA)

Products

• Network Flow Analysis
• CA Performance Management
• Network Observability

Issue/Introduction

The following alert from NFA is being generated, while all SNMP configuration is done properly and IP 10.1.2.3 which is the IP address for the NFA harvester:

%SNMP-3-AUTHFAIL: Authentication failure for SNMP request from host 10.1.2.3

Or the following is being generated in the DX NetOps Portal logs:

%AUTH-5-SNMPD_AUTH_FAILURE: nsa_log_community: unauthorized SNMP community from XXX.XXX.XXX.XXX to xxx.xxx.xxx.xxx

Environment

DX NetOps Performance Management Release : 20.2 or later
Network Flow Analysis (NFA) 10.0 or later

Cause

SNMP profile incorrectly assigned to the device in DX NetOps Portal resulting in incorrect SNMP authentication strings being used for the device.

Resolution

Change the SNMP profile to correctly reflect the SNMP authentication credentials of the device.