Compaq AAR04BCTE manual MIB Compiler, Overview ESNMP API, Snmp Utilities

Models: AAR04BCTE

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Overview

1.5 The eSNMP API

Interface routines handle the basic subagent operations, such as:

Subagent initialization and termination

Registration

Polling of the master agent

Trap sending

UNIX system time conversion

Adding and removing subagent capabilities registered with the master agent

The support routines allow the subagent to manipulate the data in the response to the request, and include the following:

Basic protocol data unit (PDU) handling

Authentication handling

Octet string handling

Variable binding (VARBIND) handling

Object identifier (OID) handling

Buffer handling

Chapter 5 describes the API routines in more detail.

To create a subagent, the programmer must provide modules to implement the method routines, as described in Chapter 3.

1.5.1 The SNMP Utilities

To provide quick access to information in the MIBs, and to test SNMP operation, TCP/IP Services provides the following utilities:

TCPIP$SNMP_REQUEST.EXE, a MIB browser that allows you to retrieve and update objects from the MIBs.

TCPIP$SNMP_TRPSND.EXE, a trap sender that generates traps (messages that require no response).

TCPIP$SNMP_TRPRCV.EXE, a trap receiver (or ‘‘listener’’) that is used to detect trap messages.

For information about using the SNMP utilities, see Chapter 4.

1.6 The MIB Compiler

The MIB compiler processes the statements in an ASN.1 file and generates modules that are used by the developer to create subagent routines. For every ASN.1 input file that is processed using the MIB compiler, two output files, a subtree_TBL.H file and a subtree_TBL.C file, are generated, where subtree is the name from the original MIB definition file (for example, chess). The output files are described in more detail in Chapter 3.

The subtree_TBL.H file is a header file that contains the following:

A declaration of the subtree structure

Index definitions for each MIB variable in the subtree

Enumeration definitions for MIB variables with enumerated values

MIB group data structure definitions

Overview 1–7

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Compaq AAR04BCTE manual MIB Compiler, Overview ESNMP API, Snmp Utilities

AAR04BCTE specifications

The Compaq AAR04BCTE is a remarkable desktop computer that embodies a combination of performance, versatility, and reliability, catering to various computing needs for both personal and professional use. This model stands out in the crowded market of desktop PCs due to its robust specifications and user-friendly features.

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Overall, the Compaq AAR04BCTE is a solid choice for users seeking a reliable desktop computer with powerful features, versatile connectivity, and efficient performance. Whether for home use or in a professional environment, this model delivers on its promise of quality and functionality, addressing the diverse needs of today's technology-savvy users.