Digital Energy

Multilin

Multilink ML1200

Managed Field Switch

Chapter 16: SNMP

16.1Overview

16.1.1 Description

SImple Network Management Protocol (SNMP) enables management of the network. There are many software packages which provide a graphical interface and a graphical view of the network and its devices. These graphical interface and view would not be possible without SNMP. SNMP is thus the building block for network management.

16.1.2 SNMP Concepts

SNMP provides the protocol to extract the necessary information from a networked device and display the information. The information is defined and stored in a Management Information Base (MIB). MIB is the “database” of the network management information.

SNMP has evolved over the years (since 1988) using the RFC process. Several RFCs define the SNMP standards. The most common standards for SNMP are SNMP v1 (the original version of SNMP); SNMP v2 and finally SNMP v3.

SNMP is a poll based mechanism. SNMP manager polls the managed device for information and display the information retrieved in text or graphical manner. Some definitions related to SNMP are

Authentication - The process of ensuring message integrity and protection against message replays. It includes both data integrity and data origin authentication

Authoritative SNMP engine - One of the SNMP copies involved in network communication designated to be the allowed SNMP engine which protects against message replay, delay, and redirection. The security keys used for authenticating and encrypting SNMPv3 packets are generated as a function of the authoritative SNMP engine's engine ID and user passwords. When an SNMP message expects a response (for example, get exact, get next, set request), the receiver of these messages is

MULTILINK ML1200 MANAGED FIELD SWITCH – INSTRUCTION MANUAL

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GE instruction manual Multilink ML1200 Managed Field Switch Snmp, Snmp Concepts