Glossary

agent

An interface to a managed object, such as a workstation or an application running on a workstation, that responds to a request from a manager.

ASN.1

Acronym for Abstract Syntax Notation One, a standard language for describing data structures. ASN.1 does not depend on computer architecture or implementation language. Therefore, it lets programs exchange structured data over networks. For more information, see MIBs.

coserver

The functional equivalent of a database server that operates on a single node. References to coserver in this manual apply only to Extended Parallel Server.

IANA

Acronym for Internet Assigned Numbers Authority, which defines a hierarchy for naming tables and columns and for deriving numerical object identifiers (OIDs). IANA assigns identifiers to companies that use the SNMP protocol.

IETF

Acronym for Internet Engineering Task Force, which specifies the structure of public MIBs and MIB tables.

infxsnmp.dll

Library for the Windows version of OnSNMP.

managed component

Hardware or software component that has a corresponding SNMP subagent. To manage a component, an SNMP Network Manager communicates with a master agent, and the master agent communicates with a subagent.

managed workstation

Workstation that includes a managed component.

master agent

Program that provides an interface between a subagent and an SNMP Network Manager. A managed workstation includes one master agent.

MIB

Acronym for Management Information Base, which is a group of tables that contain the information that a subagent can provide to a master agent.

OID

Acronym for Object Identifier, which is a numerical value that identifies an MIB, an MIB table, a parameter (column) in an MIB table, or an object (row) in an MIB table.

onsnmp

Subagent program for the UNIX version of OnSNMP.

onsnmp.exe

Subagent program for the Windows version of OnSNMP.

OnSNMP

Subagent for an Informix database server or coserver. On UNIX, OnSNMP consists of onsnmp. In Windows, OnSNMP consists of onsnmp.exe, infxsnmp.dll, and onsrvapd.exe.

onsrvapd

Server discovery program for the UNIX version of OnSNMP.

onsrvapd.exe

Server discovery program for the Windows version of OnSNMP.

runsnmp.ksh

Helper script to ensure that both the onsrvapd server discovery daemon and the SNMP master agent are running on a host.

Server Discovery Process

The discovery process discovers multiple server instances running on the host. These instances might belong to different versions that are installed on different directories.

SMI

In the context of SNMP, acronym for the Structure of Management Information, which defines the common interface definition language.

SNMP

Acronym for Simple Network Management Protocol, a communication protocol that lets you manage components on a network.

SNMP Network Manager

Program that monitors and controls managed components on a network.

SNMPv1, SNMPv2

Versions of the SNMP standard. For more information, see SNMP Standard.

subagent

Program that lets a managed component and a master agent communicate with each other.