Saad Haj Bakry, PhD, CEng, FIEE 1 Integrated Network Management: OSI / NM Saad Haj Bakry, PhD, CEng, FIEE P RESENTATIONS IN N ETWORK M ANAGEMENT.

Saad Haj Bakry, PhD, CEng, FIEE

1

Integrated Network Management: OSI / NM

Saad Haj Bakry, PhD, CEng, FIEE

PRESENTATIONS IN NETWORK MANAGEMENTPRESENTATIONS IN NETWORK MANAGEMENT

Saad Haj Bakry, PhD, CEng, FIEE 2

Objectives / Contents

ISO-OSI Architecture INMS Principles Standards



ISO- OSI Architecture

Introduction The Layered Principle The “7” Layers OSI / NM Functions / Operation



ISO

INTERNATIONAL STANDARDS ORGANIZATIONINTERNATIONAL STANDARDS ORGANIZATION

ADDRESS: PO Box

56, 1211 Geneva 20, Switzerland

ADDRESS: PO Box

56, 1211 Geneva 20, Switzerland

STARTED: 1946

200 (TCs) Technical

Committees

5000 (Standards)

STARTED: 1946

200 (TCs) Technical

Committees

5000 (Standards)

MEMBERS: 89 Countries ANSI: USA BSI: UK SASO:

Saudi Arabia

MEMBERS: 89 Countries ANSI: USA BSI: UK SASO:

Saudi Arabia



OSI:

TRANSPORT

DATA LINK

PHYSICAL

NETWORK

SESSION

PRESENTATION

APPLICATION

OPEN SYSTEM

INTERCONNECTION:

REFERENCE MODEL

OPEN SYSTEM

INTERCONNECTION:

REFERENCE MODEL

STARTED: 1983STARTED: 1983



Network Structure

H

Host / DTE

Node / DCE

Users

N

N N

N

COMMUNICATIONS

SUBNETWORKH

H H

H

H

UU

U

U

U

U

U

ACCESS / SERVICES SUBNETWORK



WHY DIVIDE:

Complex Operation

Divide & Rule

Remember: it is Integrated

(All in One)

WHY DIVIDE:

Complex Operation

Divide & Rule

Remember: it is Integrated

(All in One)

WHY LAYERS:

Nature of Network Structure

User Access Use Demands Presentation

Network Operation Communication

WHY LAYERS:

Nature of Network Structure

User Access Use Demands Presentation

Network Operation Communication

Layered Protocols



ISO-OSI LayersAPPLICATIONAPPLICATION

PRESENTATIONPRESENTATION

SESSIONSESSION

TRANSPORT`TRANSPORT`

NETWORKNETWORK

DATA LINKDATA LINK

PHYSICALPHYSICAL

APPLICATIONAPPLICATION

PRESENTATIONPRESENTATION

SESSIONSESSION

TRANSPORT`TRANSPORT`

NETWORKNETWORK

DATA LINKDATA LINK

PHYSICALPHYSICAL

COMMUNICATION MEDIUM


PHYSICALPHYSICAL

DATA LINKDATA LINK

NETWORKNETWORK

COMMUNICATION SUBNETWORKCOMMUNICATION SUBNETWORK



PEER LEVELS


Saad Haj Bakry, PhD, CEng, FIEE 9Saad Haj Bakry

Network Architecture ISO-OSI Protocols

APPLICATION: Supporting Services at Access Points

APPLICATION: Supporting Services at Access Points

PRESENTATION: Representation of

Information

PRESENTATION: Representation of

Information

SESSION: User Interface to the Network

SESSION: User Interface to the Network

TRANSPORT: End to End QOS

TRANSPORT: End to End QOS

NETWORK: Subnetwork Operation

NETWORK: Subnetwork Operation

DATA LINK: Point to Point Error FreeDATA LINK: Point to Point Error Free

PHYSICAL: Interface to the MediumPHYSICAL: Interface to the Medium

INTERNETWORKINGINTERNETWORKING INTERCONNECTIONINTERCONNECTION

ISO-OSI Basic Functions



FUNCTIONS: CIRCUIT IDENTIFICATION CONNECTION: Activate / Maintain / Deactivate

SIGNAL & MEDIUM: Put on / Take off

FLOW: Sequencing & Transmission

FAULT: Detection Notification

FUNCTIONS: CIRCUIT IDENTIFICATION CONNECTION: Activate / Maintain / Deactivate

SIGNAL & MEDIUM: Put on / Take off

FLOW: Sequencing & Transmission

FAULT: Detection Notification

An Interface to the Physical MediumAn Interface to the Physical Medium

Physical Layer (1/2)Integrated Network Management: OSI / NM


STANDARDS: MECHANICAL: Plugs / Sockets / Pins Functions

ELECTRICAL: Voltage Levels on the Medium

FUNCTIONAL: Levels Assigned to: 0 / 1

PROCEDURAL: Rules of Operation, Sequencing

STANDARDS: MECHANICAL: Plugs / Sockets / Pins Functions

ELECTRICAL: Voltage Levels on the Medium

FUNCTIONAL: Levels Assigned to: 0 / 1

PROCEDURAL: Rules of Operation, Sequencing

EXAMPLES: ITU: V.24 / X.21; EIS: RS 232 / RS

449

EXAMPLES: ITU: V.24 / X.21; EIS: RS 232 / RS

449

Physical Layer (2/2)Integrated Network Management: OSI / NM


FUNCTIONS:

CONNECTION ESTABLISHMENT BREAKING DATA INTO FRAMES

ERROR CONTROL: Detection / Recovery

FLOW CONTROL: Buffer Limit / QOS

FUNCTIONS:

CONNECTION ESTABLISHMENT BREAKING DATA INTO FRAMES

ERROR CONTROL: Detection / Recovery

FLOW CONTROL: Buffer Limit / QOS

Point to Point Error Free TransmissionPoint to Point Error Free Transmission

Data Link Layer (1/2)



EXAMPLES:

IBM SNA: SDLC (Synchronous DL Control) ISO: HDLC

(High level DLC)

EXAMPLES:

IBM SNA: SDLC (Synchronous DL Control) ISO: HDLC

(High level DLC)

ERROR CONTROL: Adding Control Bits

ERROR CONTROL: Adding Control Bits

TECHNIQUES:

Echo Checking

ARQ: Automatic

Repeat Request

FEC: Forward Error

Correction

TECHNIQUES:

Echo Checking

ARQ: Automatic

Repeat Request

FEC: Forward Error

Correction

Data Link Layer (2/2)Integrated Network Management: OSI / NM


FUNCTIONS: SUBNETWORK PATH CONTROL:

Addressing, Set Up, Maintain, Clear Down MULTIPLEXING /

CONCENTRATION ROUTING / RELAYING: QOS CONGESTION

CONTROL: QOS

FUNCTIONS: SUBNETWORK PATH CONTROL:

Addressing, Set Up, Maintain, Clear Down MULTIPLEXING /

CONCENTRATION ROUTING / RELAYING: QOS CONGESTION

CONTROL: QOS

Control of Communications Sub-networkControl of Communications Sub-network

Network Layer (1/2)Integrated Network Management: OSI / NM


EXAMPLES: ITU: X.25 / EIA: RS-366

EXAMPLES: ITU: X.25 / EIA: RS-366

ROUTING:

STATIC: Shortest Path / Table DYNAMIC: Least Busy Link

HYBRID

ROUTING:

STATIC: Shortest Path / Table DYNAMIC: Least Busy Link

HYBRID

CONGESTION

CONTROL: PERMITS / TOKENS SHARING BUFFERING LIMITS

CONGESTION

CONTROL: PERMITS / TOKENS SHARING BUFFERING LIMITS

Network Layer (2/2)Integrated Network Management: OSI / NM


FUNCTIONS: END TO END PATH CONTROL

BREAKING DATA INTO

MANAGEBLE UNITS ERROR /

CONGESTION / COST / QOS MONITORING & CONTROL

SPLITTING: (1) Transport to (n)

Network Connections MULTIPLEXING: (n) Transports to (1) Connection

FUNCTIONS: END TO END PATH CONTROL

BREAKING DATA INTO

MANAGEBLE UNITS ERROR /

CONGESTION / COST / QOS MONITORING & CONTROL

SPLITTING: (1) Transport to (n)

Network Connections MULTIPLEXING: (n) Transports to (1) Connection

End to End Service Quality ControlEnd to End Service Quality Control

Transport LayerIntegrated Network Management: OSI / NM


User Interface to the NetworkUser Interface to the Network

Session

Connection

Establishment

Session

Connection

Establishment

Session

Interaction

Management

Session

Interaction

Management

QUARANTINE: (for Security)

Receiver Needs Permission to Release

Information to Presentation

QUARANTINE: (for Security)

Receiver Needs Permission to Release

Information to Presentation

Session

Connection

Release

Session

Connection

Release

BRACKETING: (for Failure) Retaining the Ability to

Retransmit Using the Last Bracketed Message

BRACKETING: (for Failure) Retaining the Ability to

Retransmit Using the Last Bracketed Message

Session LayerIntegrated Network Management: OSI / NM


Representation of InformationRepresentation of Information

CODING: Syntax & Semantics of Information CODING: Syntax & Semantics of Information

ENCRYPTION ENCRYPTION COMPRESSIONCOMPRESSION

CODE CONVERSION: ASCII / EBCDICCODE CONVERSION: ASCII / EBCDIC

TRANSFERRING / RECEIVING InformationTRANSFERRING / RECEIVING Information

Presentation Layer



Supporting Network Services at Access Points (User End)

Supporting Network Services at Access Points (User End)

GENERAL FUNCTIONS: AUTHORITY TO COMMUNICATE

SERVICE SELECTION

PARTNERS IDENTIFICATION

MESSAGE HANDLING

GENERAL FUNCTIONS: AUTHORITY TO COMMUNICATE

SERVICE SELECTION

PARTNERS IDENTIFICATION

MESSAGE HANDLING

Application Layer



FAULTS: Alarm / Response / Recording

FAULTS: Alarm / Response / Recording

CONFIGURATION:

Monitoring / Detection

of Changes / Response

CONFIGURATION:

Monitoring / Detection

of Changes / Response

SECURITY:

Access / Attacks / Protection

SECURITY:

Access / Attacks / Protection

PERFORMANCE:

Network Behaviour & Cost-

Effectiveness

PERFORMANCE:

Network Behaviour & Cost-

Effectiveness

ACCOUNTING: Usage / Charging / Billing

ACCOUNTING: Usage / Charging / Billing

ISO / NM: Basic FunctionsIntegrated Network Management: OSI / NM


OSI PROTOCOL MANAGEMENT: Management of a Function / Protocol of a Layer

OSI PROTOCOL MANAGEMENT: Management of a Function / Protocol of a Layer

OSI LAYER MANAGEMENT: Management of Interaction between Peer Layers

OSI LAYER MANAGEMENT: Management of Interaction between Peer Layers

OSI SYSTEM MANAGEMENT: Management of Functions Related to All Layers

OSI SYSTEM MANAGEMENT: Management of Functions Related to All Layers

ISO / NM: Basic Operations



INMS Principles Management Integration Peer Communications Equipment Description CML: Common Management Language MIB: Management Information Base. Information Exchange



Management Integration

-OSI / NM Interface: CMIS / CMIP- (Standards)

--EMS: Element Management Systems--(Proprietary)

--------------------------------------------------------------------------------------------

INMS: Integrated Network Management System

EMS EMS EMS EMS

Multiplexers LANs Modems Workstations

element element element element



Peer to Peer Communications

INMS

EMS EMS EMS EMS

Elements Elements Elements Elements

element element element element

INMSCommunications

CML



Equipment Description

Class “A”

Sub-Class “A A” Sub-Class “A B”

Sub-Class “A A B”Sub-Class “A A A”

Attributes

Characteristics

Root

Root Description Functions



CML: Common Management Language

Real Network Resource: Element / Object

Standard Template to Specify Managed Element / Object

Using ASN-1 (Standard Object Definition Language)

CMIS / P CMIS / PCMIS / PPeer to Peer Management Systems

Abstract Syntax Notation



MIB: Management Information Base

MIB is the “database” of the managed “object representation” of the “network elements” and their “relationships” to one another.

MIB is the “information” which, at any time,can be “transferred” or “affected” through the use of

“OSI / NM protocols”



Information Exchange Systems Management

Monitoring, Control & Coordination of Managed Objects

Through the “Application Layer” Associated with Single or Multiple Layers

Layer Management Associated with a Single Layer

Layer Operation Associated with Functions within a Layer



Standards Information Services Layer 7

Transaction Services File Transfer

Layers: 4-6 Layers: 1-3



Management Standards: Information

Name Full Name Standard

CMIS Common Management Information Service

ISO 9595

CMIP Common Management Information Protocol

ISO 9596



Layer 7: Transaction Services

Management Application Processes

Layer: 6

Layer: 7

ACSE: Association Control Service Elements

CMIS: Common Management Information Service

Management Specific Functions

ROSE: Remote OperationsService Elements



Layer 7: File Transfer

Management Application Processes

Layer: 6

Layer: 7ACSE: Association Control

Service Elements

FTAM: File Transfer Access Management



Management Standards: Layer 7

Name Full Name Standard

ACSE Association Control Service Elements

ISO 8649 /8650

ROSE Remote Operations Service Elements

ISO 9072

FTAM File Transfer Access Management

ISO 8571



Management Standards: Layers 4-6

LAYER STANDARDS

Presentation ISO 8822 / 8823

Session ISO 8326 / 8327

Transfer ISO 8072 / 8073



Management Standards: Layers 1-3

LAYER WAN

Applications

LAN Applications

Network X.25 PLP

ISO 8878 /8208

CLNS

ISO 8348 / AD1

Data Link X.25 LAPB / SLP

ISO 7776

IEEE 802.2 LLC

IEEE 802.3 MAC

CSMS / CD

Physical X.21 bis 10 BASE 5



Conclusions Integrated Network Management:

Operations / Levels / Integration. Information Base / Information Flow. Functions. Standards: ISO-OSI / NM.

Other Topics: Internet SNMP TMN

(All associated with operation management) Investigate “Practical Packages”.



References Telecommunications Management:

Operation & Management of Networks, National Computing Centre (NCC) Training, UK.

Franz-Joachim Kauffels, Network Management: Problems, Standards and Strategies, Addison-Wesley, UK.

Daniel Minoli, Telecommunications Technology Handbook, Artech House, Boston & London.


Saad Haj Bakry, PhD, CEng, FIEE 1 Integrated Network Management: OSI / NM Saad Haj Bakry, PhD, CEng, FIEE P RESENTATIONS IN N ETWORK M ANAGEMENT.

Documents

osi nm saad haj bakry

osi nm slide

network t ransport

fiee p resentations

isoosi layers

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medium p hysical d ata

standards s tarted