ZyXEL Communications EMG2926-Q10A Guide de l'utilisateur télécharger pdf (Page 131)

Chapter 20 Remote Management

EMG2926-Q10A User’s Guide

131

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/managed objects that define each piece of

information to be collected about a device. Examples of variables include number of packets

received, node port status etc. 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/response protocol based on the manager/agent model. The

manager issues a request and the agent returns responses using the following protocol operations:

• Get - Allows the manager to retrieve an object variable from the agent.

• GetNext - Allows the manager to retrieve the next object variable from a table or list within an

agent. In SNMPv1, when a manager wants to retrieve all elements of a table from an agent, it

initiates a Get operation, followed by a series of GetNext operations.

• Set - Allows the manager to set values for object variables within an agent.

• Trap - Used by the agent to inform the manager of some events.

To change your EMG2926-Q10A’s SNMP settings, click Management > Remote MGMT > SNMP.

Figure 92 Management > Remote Management > SNMP

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ZyXEL Communications EMG2926-Q10A Guide de l'utilisateur Page 131