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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.Chapter 5, "Network Discovery," for a list of NNM environment variables.
Sealey Inc., our fictitious company, would like a network management application with the to ability discover and graphically display their customer networks. The application should be easy to navigate. It should allow the user to locate and query devices quickly from a GUI. Because many customer devices are SNMP manageable, the application needs to have the capability to accept and display SNMP traps. Sealey Inc. would also like to query SNMP MIB variables. Some of the operators will need read-only access to customer data. Many operators will access the network remotely and would like to have access via a thin client such as a web browser or a java interface.This chapter describes out-of-the-box functionality provided by NNM that includes some basic functionality required by Sealey Inc. It provides details on accessing NNM data from the GUI and covers features that do not require customization, such as discovery and mapping of a network, reception of SNMP traps, and the different methods of accessing NNM including web access.
