HP OpenView System Administration Handbook: Network Node Manager, Customer Views, Service Information Portal, HP OpenView Operations

Chapter 4. Out-of-the-box Network Node Manager

Network Node Manager (NNM) is a Simple Network Management Protocol (SNMP)-based tool that provides discovery, mapping, and monitoring of all TCP/IP devices on your network. If a device responds to ping, NNM will display it. If it responds to SNMP queries, NNM is capable of displaying it more accurately. Information such as the vendor, model, the number of interfaces, etc. can be gathered through SNMP. This information is defined by the standard Management Information Base (MIB) variables as defined in RFC 1213.^[1] Vendors can extend MIB variables by defining vendor/model specific MIB variables. For example, Hewlett-Packard provides MIB variables specific to HP network printers that determine when ...