5.1 Concepts for communications
NNMi uses SNMP and ICMP primarily in a request-response manner. Responses to ICMP ping requests verify address responsiveness. Responses to SNMP requests for specific MIB objects provide more comprehensive information about a node.
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If Web Agents are configured (in addition to SNMP Agents), NNMi can use additional protocols. For example, SOAP protocol for VMware environments.
The following concepts apply to NNMi communications configuration:
Levels of communication configuration
Network latency and timeouts
SNMP access control
SNMP version preferences
Management address preferences
Polling protocols
nnmsnmp*.ovpl commands