Summary


SNMPv3 provides several compelling advantages over previous versions. Authentication and strong security; improved error, exception, and notification reporting; and bulk operations are among the most important. SNMPv3 features like these can help make life a lot easier for network managers. Setting up security on a networkwide basis is still a difficult task. The different versions of SNMP require support in a given NMS. This consists of community strings and trap/notification destination settings. The latter is also required in SNMPv3. For SNMPv3, community strings are not used. Instead, the user must set up the required level of authentication and encryption.

MIB browsers represent an indispensable tool for both NMS software developers and network managers. They provide a detailed view of MIB objects. While MIBs can be defined with arbitrary complexity and size, they all have a relatively simple structure. Understanding this structure is a key element of studying network management technology. An essential point to note about managed objects is that there is just a single MIB. The MIB can be extended to support new objects, such as, those for MPLS.

An NMS can also be arbitrarily complex with a great many components . However, a typical NMS is at least conceptually similar to other more familiar applications, such as operating systems. Just as for MIBs, it is important to gain a good conceptual understanding of the NMS structure.

NEs are those components that combine together to make up a managed network. There are some broad similarities between many NEs, and an appreciation of these helps in deciding how to manage them.

MPLS is an extremely important technology that is being widely deployed in SP networks and also in some enterprise WANs. The major components of this technology were described in order to lay the foundations for Chapter 8, where we examine the mechanisms for creating MPLS-managed objects.



Network Management, MIBs and MPLS
Network Management, MIBs and MPLS: Principles, Design and Implementation
ISBN: 0131011138
EAN: 2147483647
Year: 2003
Pages: 150

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