Agentx each role function

Agentx Roles

1. Master

An entity acting in a Master agent role performs the following functions:

-Accepts AGENTX session establishment requests from subagents.

Accept A session request from subagents

-Accepts registration of MIB regions by Subagents.

Accept A session request from subagents

-Sends and accepts SNMP protocol messages on the agent ' s

Specified transport addresses.

Accept A session request from subagents

-Implements the agent role Elements of Procedure specified for

The administrative framework applicable to the SNMP protocol

message, except where they specify performing management

Operations. (The application of MIB views, and the access

Control policy for the managed node, is implemented by the

Master agent.)

-Provides instrumentation for the MIB objects defined in RFC

1907 [+], and for any MIB objects relevant to any

Administrative framework it supports.

-Sends and receives AGENTX protocol messages to access

Management information, based on the current registry of MIB

Regions.

Receive and send agentx protocol messages based on a registered MIB library file

-Forwards notifications on behalf of Subagents.

Forwarding subagents messages

2, Subagent

An entity acting in a subagent role performs the following functions:

-Initiates AGENTX sessions with the master agent.

Initializing A session with the master side

-Registers MIB regions with the master agent.

Registering the MIB library with the master side

-Instantiates managed objects.

Instantiating an Object

-Binds OIDs within its registered MIB regions to actual

Variables.

Binding objects

-Performs management operations on variables.

Implementing Management Actions

-Initiates notifications.

Initialize Notifications

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Agentx type of message:

AGENTX-OPEN-PDU (1),

AGENTX-CLOSE-PDU (2),

AGENTX-REGISTER-PDU (3),

AGENTX-UNREGISTER-PDU (4),

AGENTX-GET-PDU (5),

AGENTX-GETNEXT-PDU (6),

AGENTX-GETBULK-PDU (7),

AGENTX-TESTSET-PDU (8),

AGENTX-COMMITSET-PDU (9),

AGENTX-UNDOSET-PDU (10),

AGENTX-CLEANUPSET-PDU (11),

AGENTX-NOTIFY-PDU (12),

AGENTX-PING-PDU (13),

AGENTX-INDEXALLOCATE-PDU (14),

AGENTX-INDEXDEALLOCATE-PDU (15),

AGENTX-ADDAGENTCAPS-PDU (16),

AGENTX-REMOVEAGENTCAPS-PDU (17),

AGENTX-RESPONSE-PDU (18)

Of these, 1-4 and 12-17 belong to "administrative processing" and 5-11 belong to SNMP request processing.

Agentx each role function