GarrettCom Magnum 3000 User Manual

Page 39

Magnum 3000 Stackable Hubs Installation and User Guide (07/06)

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5.0

Introduction - Simple Network Management Protocol (SNMP)

Agents

This chapter describes the Magnum 3000 SNMP agent products.

5.1

SNMP Agents Description

There are two configuration options (versions) of the Magnum SNMP

hardware agent. Both versions follow standard MIB I and MIB II protocol conventions.

In one version, the Magnum SNMP agent is offered as an embedded board

(Model 3000-MB) which resides directly within the Magnum 3024 or 3012 box. In the

alternate version, the Magnum SNMP agent board is available in a separate box (Model

3000-AGT) that is the same size as a 3024 or 3012 unit, and has its own internal power

supply and Inter Repeater Bus (IRB) connections to fit it into a Magnum 3000 stack.

The "MB" version is ideal for agents that are part of the initial configuration, and for the

smaller stacks and single-unit systems. The "AGT" version is convenient for field add-

ons of the SNMP agent option and for large stacks.

Magnum SNMP agents support all standard basic SNMP commands

(GetRequest, GetNextRequest, GetRespose, SetRequest and Trap), and allow monitoring

and changing of the target device's configuration and parameters as well as reporting the

device alarms from a network management station.

5.1.1

Embedded SNMP Agent, Model 3000-MB

The embedded Magnum SNMP agent is a daughter board that is directly

attached to the master printed circuit board inside each Magnum 3012 or 3024 unit. The

embedded agent essentially consists of an embedded computer configuration built around

a 386 CPU, and is designed with an interface to the Inter-Repeater-Bus (IRB). This

allows all units within a Magnum stack to be managed from a single SNMP agent via the

IRB that interconnects the stack.

The embedded agent board is equipped with an externally accessible 9-pin RS-

232 serial connector, referred to as "P1". This connector may be used to set the IP

address and configuration files of the Magnum agent if necessary.

EPROMs on the agent board contain fixed data and program firmware. The

Standard Repeater MIB ( MIB I & MIB II) and the Monitor and Address Tracking MIB