NCM validating SNMP RO credentials during device discovery

Products

• VMware Smart Assurance
• Network Observability

Issue/Introduction

How does NCM validate SNMP RO credentials defined during device discovery?

Environment

All supported NCM versions

Resolution

NCM sends a SNMP get request to device on below two OIDs of MIB-2:

.1.3.6.1.2.1.1.1.0 - SysDesc
.1.3.6.1.2.1.1.5.0 - SysName

 

If NCM receives a value as response on these two OIDs, the SNMP Credential is marked as valid. If no response is received, the SNMP Credential is marked as invalid.