Allied-telesis AT 8000/8POE User Manual download pdf (Page 72)

Chapter 5: SNMP

72 Section I: Using the Menus Interface

SNMP Overview

The Simple Network Management Program (SNMP) is another way for

you to manage the switch. This type of management involves viewing and

changing the management information base (MIB) objects on the device

using an SNMP application program. The AT-S81 management software

supports SNMPv1 and SNMPv2c which is always disabled on the switch.

The procedures in this chapter show you how to create and manage

SNMPv1 and SNMPv2c community strings through which your SNMP

application program at your management workstation can access the

switch’s MIB objects.

To manage a switch using an SNMP application program, you must do the

following:

 Activate SNMP management on the switch. The default setting for

SNMP management is disabled. The procedure for this can be found

in “Enabling or Disabling the SNMP Agent” on page 74.

 Load the Allied Telesis MIBs for the switch onto your management

workstation containing the SNMP application program. The MIBs are

available from the Allied Telesis web site at www.alliedtelesis.com.

To manage a switch using SNMP, you need to know the IP address of the

switch and at least one of the switch’s community strings. A community

string is a string of alphanumeric characters that gives you access to the

switch.

A community string has several attributes that you can use to control who

can use the string and what the string will allow a network manager to do

on the switch. The community string attributes are defined below:

Community String Name

The SNMP community string is similar to a user ID or password, which

allows access to a network device’s statistics. You must assign a name to

the community string. The name can be from one to eight alphanumeric

characters. Spaces are allowed.

Access Mode

This defines what the community string will allow a network manager to

do. There are two access modes: Read and Read/Write. A community

string with an access mode of Read can only be used to view but not

change the MIB objects on a switch. A community string with a Read/Write

access can be used to both view the MIB objects and change them.

Status

A community string can be enabled, disabled, or deleted. When disabled,

no one can use it to access the switch. You might disable a community

string if you suspect someone is using it for unauthorized access to the

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Allied-telesis AT 8000/8POE User Manual Page 72