Smarts IP: SNMP v3 discovery fails on VMWare ESXi; Error: No response from SNMP agent, V3, SNMP-N-EAGENTUSMWINDOW-Agent REPORT [USM]: Not In Time Window

Products

• VMware Smart Assurance

Issue/Introduction

Symptoms:


Discovery failing for VMWare ESXi 

Log files show this error frequently :

[ ] t@1042151168 AD_CallbackICMP #1
SNMP-E-AGENTERRORSTATS-Below message for SNMP agent at '<IP address>:161', was suppressed 0 times since The Epoch
SNMP-EAGENTUSMWINDOW-Agent REPORT [USM]: Not In Time Window
[] t@1075771136 Discovery #15
AD_MSG-*-AD_LOG-at 'SeedResponse t@1075771136', while discovering '<IP address>', No response from SNMP agent, V3, SNMP-N-EAGENTUSMWINDOW-Agent REPORT [USM]: Not In Time Window

Environment

VMware Smart Assurance - SMARTS

Cause

The error, "Not In Time Window" is generated when the SNMP request contains EngineTime and EngineBootCnt which are different with the agent's EngineTime and EngineBootCnt. The possible reason is, the agent would have restarted.

Resolution

Its a bug in ESXi. An internal ticket in VMware is raised.
Patch is being worked on by vmware. Follow the link below:

VMWare KB