Avaya Business Secure Router 252 Configuration - Basics Uživatelský manuál stáhnout pdf (Strana 354)

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354 Chapter 18 Remote management screens

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Figure 130 SNMP Management Model

An SNMP-managed network consists of two main types of component: agents

and a manager.

An agent is a management software module that resides in a managed device (the

Business Secure Router). An agent translates the local management information

from the managed device into a form compatible with SNMP. The manager is the

console through which network administrators perform network management

functions. It executes applications that control and monitor managed devices.

The managed devices contain object variables and managed objects that define

each piece of information to be collected about a device. Examples of variables

include number of packets received and node port status. A Management

Information Base (MIB) is a collection of managed objects. SNMP allows a

manager and agents to communicate for the purpose of accessing these objects.

SNMP itself is a simple request and response protocol based on the manager and

agent model. The manager issues a request and the agent returns responses using

the following protocol operations:

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