ADTRAN TSU 120 Bedienungsanleitung PDF herunterladen (Seite 116)

Appendix A. Understanding SNMP

A-2 TSU 120 User Manual 61202029L1-1

MIB

This is an index to the organized data within a network device.

It defines the operating parameters that can be controlled or

monitored. When requesting the network manager to retrieve

or modify a particular piece of information about a network

device, the network manager transmits the request to that net-

work device. The agent in that device interprets the incoming

request, performs the requested task, and sends its response to

the network manager. The network manager collects all the

data from the various network devices and presents it in a con-

sistent form.

Commands

Using SNMP Version 1, the network manager can issue three

types of commands: GetRequest, GetNextRequest, and

SetRequest.

GetRequest

This command retrieves a single item or the first in a series

from a network device.

GetNextRequest

This command retrieves the next item in a series from a net-

work device.

SetRequest

This command writes information to a network device.

Messages

The network device issues two types of messages:

GetResponse and Trap.

GetResponse

This message is the response to a network manager

GetRequest or GetNextRequest command.

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ADTRAN TSU 120 Bedienungsanleitung Seite 116