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Keimyung University

OSI Management Framework:

Overview

Ju Hong TaekCollege of Information and Communication

Keimyung UniversityTel: 053-580-5234

Email: juht@kmu.ac.kr

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Keimyung University

Table of Contents

• Introduction

• Basic Concepts & Terminology

• OSI Management Standards

• OSI Management Information

• GDMO

• CMIS & CMIP

• Summary

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Introduction• OSI Systems Management is a collection of

standards for network management that includes:– management service and protocol– definition of management information– systems management functions

• Joint standards by ISO & ITU-T (formerly CCITT)• Widely known as “CMIP”• used mostly in Telecommunications Network

Management• Very complex & many areas are still being refined

and standardized

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Basic Management Model

MANAGINGSYSTEM

MANAGED SYSTEM

Transfer of manageme

nt information

and notification

s

Manager

Agent

Managed

objects

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Basic OSI Terminology (1)• Managed Object (MO): an abstract representation of a

resource to be managed

• Attribute: a property of an MO (~ instance variable in SNMP)

• Management Information Base (MIB): the conceptual repository of management information consisting of a set of MOs, together with their attributes

• Systems management functions: functions in the application layer related to the management of various OSI resources and their status across all layers of the OSI architecture

• Systems management application process (SMAP): an application process participating in systems management

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Basic OSI Terminology (2)• Systems management application entity

(SMAE): an application entity which performs systems-

management communication • Layer management: the management of each OSI layer

• Layer management entity (LME): an entity that performs management-related activities for the specific OSI layer

• Systems management service: a named set of primitives that provide a service for use in systems management

• Systems management protocol: an application-layer protocol supporting systems-management services

• Systems management application-service element (SMASE): an application-service element providing systems-management services

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Basic OSI Terminology (3)• Common management information service

element (CMISE): an application-service element used to exchange information and commands for the purpose of systems management

• Common management information services (CMIS): the set of services provided by the CMISE

• Common management information protocol (CMIP): an application-layer protocol supporting CMIS

• Association control service element (ACSE): an application-service element (ASE) supporting associations with other entities

• Remote operation service element (ROSE): an ASE supporting remote operations with remote entities

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Architectural Model of OSI Management

Systems management application process

Managementinformation

base

LMESystem-management

application entityLME Presentation layer

LME Session layer

LME Transport layer

LME Network layer

LME Data-link layer

LME Physical layer

Layer-managementinterface

Systems-managementinterface

CMIP

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OSI Management in the Application Layer

Application process

Presentation layerPresentation layer

Application process

SMASE

CMISE

ROSEother ASEs

ACSE

SMASE

CMISE

ROSEother ASEs

ACSE

MAPDUs

CMIPUDs

SMAE SMAE

MAPUD = management-application protocol data unitCMIPUD = common management information protocol data unit

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Management Communication

ManagingProcess

AgentProcess

CMISECMIP

CMISE

lower layers

lower layers

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Management ArchitectureThe Standards Picture

ACSE

CMIP

AgentProce

ss

CMISE

lower layers

Managing

Process

CMISE

lower layers

FTAM

ROSE ROSE

ROP

Management

Functions

MOs

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Management ArchitectureThe Physical Picture

Managing

Process

AgentProcess

CMISECMIP CMISE

lower layers

lower layers

ManagementFunction

MOs

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OSI Management Functional Areas

• Configuration Management

• Fault Management

• Performance Management

• Security Management

• Accounting Management

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Systems Mgmt OverviewFault

managementSecurity

managementPerformancemanagement

Configurationmanagement

Accountingmanagement

Summarization

Accesscontrol

Security-alarmreporting

Alarmreporting

Objectmanagement

Testmanagement

Statemanagement

Relationshipmanagement

Security-audit trail

Accountingmeter

Logcontrol

Workloadmonitoring

Event-reportmanagement

Action

Cancel-Get

Set

Delete

Get

Create

Event report

Systems management functions

CMISE services

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Systems Mgmt Functions (1)• Object Management

– supports the creation and deletion of MOs and the reading and changing of object attributes

• State Management– specifies a model for how the management state of

an object is to be represented

• Relationship Management– specifies a model for representing and managing

relationships between MOs.

• Alarm Reporting– supports the definition of fault alarms and the

notifications used to report them

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Systems Mgmt Functions (2)• Event-Report Management

– supports the control of event reporting, including the specification of recipients of reports, the definition of reports, criteria for generating and distributing reports

• Log Control– supports the creation of logs, the creation and

storage of log records, and the criteria for logging

• Security-Alarm Reporting– supports the definition of security alarms and the

notifications used to report them

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Systems Mgmt Functions (3)• Security-Audit Trail

– specifies the kinds of event reports that should be contained in a log used for security evaluation

• Access Control– supports the control of access to management

information and operations

• Accounting Meter– provides for accounting for the usage of system

resources and a mechanism for enforcing accounting limits

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Systems Mgmt Functions (4)• Workload Monitoring

– supports the monitoring of attributes of MOs that relate to the performance of a resource

• Test Management– supports the management of confidence and

diagnostic test procedures

• Summarization– supports the definition of statistical measures to be

applied to attributes and the reporting of summarized information

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OSI Management Standards• OSI Management Standards are divided into five

categories:– OSI Management Framework and Overview– Management Information Model– CMIS/CMIP– Systems-Management Functions– Layer Management

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OSI Management Framework and Overview

Title ISO ITU-TOSI Basic Reference Model 7498-4 X.700Part 4: Management Framework Systems Management Overview 10040 X.701

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Management Information Model

Title ISO ITU-TPart 1: Management Information 10165-1 X.720 Model

Part 2: Definition of Management 10165-2 X.721Information

Part 4: Guidelines for the Definition 10165-4 X.722of Managed Objects (GDMO)

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CMIS/CMIP

Title ISO ITU-TCommon Management Information 9595 X.710Service Definition

Common Management Information 9596-1 X.711Protocol Specification

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Systems Mgmt Functions (1)

Title ISO ITU-TPart 1: Object Management 10164-1 X.730Part 2: State Management 10164-2 X.732Part 3: Relationship Management 10164-3 X.733Part 4: Alarm Reporting 10164-4 X.734Part 5: Event Report Management 10164-5 X.735Part 6: Log Control 10164-6 X.736Part 7: Security Alarm Reporting 10164-7 X.737Part 8: Security Audit Trail 10164-8 X.740Part 9: Access Control 10164-9 X.741Part 10: Accounting Meter 10164-10 X.742Part 11: Workload Monitoring 10164-11 X.739

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Systems Mgmt Functions (2)

Title ISO ITU-TPart 12: Test Management 10164-12Part 13: Summarization 10164-13Part 14: Confidence and Diagnostic 10164-14

Test CategoriesAccounting Management SC 21 N 4971OSI Software Management SC 21 N 6040General Relationship Model SC 21 N 6041Performance Management SC 21 N 6306

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Relationship among StandardsManagement Framework

7498-4 X.700System Management

Overview10040 X.701

Management InformationModel

10165-1 X.720

Guidelines for theDefinition of MOs

10165-4 X.722

Functional Areas

Systems managementFunctions

10164-n X.7nn

Common managementInformation Protocol

9596 X.711

Common managementInformation Service

9595 X.710

Definition of ManagementInformation

10165-2 X.721

Managed Object Definitions

Explain the requirements

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Q & A