RAD Data comm LRS-24 operation manual Scope, Snmp Environment, Snmp Principles, Snmp Operations

Appendix C

SNMP Management

C.1 Scope

This appendix:

•Provides specific information required to manage LRS-24 (equipped with the CM-2 module) via a Simple Network Management Protocol (SNMP)

•Includes information regarding the operation of the CM-2 SNMP agent.

C.2 SNMP Environment

General

The SNMP management functions of LRS-24 are provided by an internal SNMP agent, located on the CM-2 module.

The SNMP management communication uses the User Datagram Protocol (UDP), which is a connectionless-mode transport protocol, part of the suite of protocols of the Internet Protocol (IP). This section covers the information related to the SNMP environment. For a description of the IP environment, refer to Section C-3.

SNMP Principles

The SNMP management protocol is an asynchronous command/response polling protocol: all management traffic is initiated by the SNMP-based network management station (except for trap messages), which addresses the managed entities in its management domain. Only the addressed managed entity answers the polling of the management station.

The managed entities include a function called “SNMP agent”, which is responsible for interpretation and handling of the management station requests to the managed entity, and the generation of properly-formatted responses to the management station.

SNMP Operations

The SNMP protocol includes four types of operations:

GetRequest Command for retrieving specific management information from the managed entity. The managed entity responds with a getResponse message.

SNMP Environment C-1

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