OSI Reference Model for Telecommunications

OSI Reference Model for Telecommunications PDF

Author: Debbra Wetteroth

Publisher: McGraw Hill Professional

Published: 2001-12-18

Total Pages: 417

ISBN-13: 0071416056

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OSI IN THE VOICE ENVIRONMENT HERE’S STRAIGHTFORWARD EXPLANATIONS OF THE OSI LAYERS AND THEIR RELATIONSHIP TO TELECOM SERVICE AND EQUIPMENT. WHETHER YOU NEED ANWERS ON HARDWARE, SOFTWARE, ERROR CONTROL OR INTERFACES, LOOK INSIDE FOR BASIC FACTS AND HOW TO MANAGE THOSE CRITICAL “SPECIAL CIRCUMSTANCES” The OSI (Open System Interconnection) Reference Model is a cornerstone of modern network design. Although the OSI model has become almost synonymous with data communications, it serves the public switched telephone network (PSTN) as well and is a productive way to organize and teach the building blocks of telecom systems. In OSI Reference Model for Telecommunications, hands-on expert Debbra Wetteroth provides telecom staffers the information they need to gain a working knowledge of this essential telecom service architecture and equipment. Her style that breaks down the barriers between data and voice vocabularies. This quick reference to the OSI model puts the data you need everyday at your fingertips. Look inside for an understandable schematics of: * Mapping PSTN functions to OSI * The basics of successful data transmissions * What OSI is and does * The components that make up OSI * OSI “common knowledge” (the kind that’s not always so common), such as numbering system, signaling rates, and noise distortion data * A detailed description of Layers 1 to 3 and a thorough review of the Transport Layer. For each layer, you’ll learn roles, functions, definitions, and more This unique volume will prove invaluable to telecommunications technicians, field supervisors, switch managers, network analysts, network designers, and anyone else who needs detailed explanation of the many components of OSI.

The OSI Layers and Protocol Stacks

The OSI Layers and Protocol Stacks PDF

Author: Eric Coll

Publisher: Teracom Training Institute

Published: 2023-02-09

Total Pages: 72

ISBN-13: 1988138132

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The OSI Layers and Protocol Stacks There are so many functions that must be performed to interoperate systems, a structure is required to organize the functions so that separate issues can be treated separately. We'll explore the most commonly-used structure, the ISO Open Systems Interconnection 7-Layer Reference Model. You'll learn what a layer is, the purpose of each layer, examples of protocols like TCP and IP used to implement layers, and gain a true understanding of how a protocol stack works for applications like web surfing and VoIP. Telecom Module 12 Detailed Outline 12 OSI Layers and Protocol Stacks 12.1 Protocols and Standards ..... 12.1.1 Functions To Be Performed ..... 12.1.2 Monolithic vsStructured Protocols ..... 12.1.3 Open Systems and Standards 12.2 ISO OSI Reference Model ..... 12.2.1 Layers ..... 12.2.2 Separability of the Layers ..... 12.2.3 Protocol Stacks 12.3 The OSI 7-Layer Model 12.4 Physical Layer: 802.3, DSL, DOCSIS, Wireless 12.5 Data Link Layer: 802 MAC ..... 12.5.1 LANs, Frames and Layer 2 Switches ..... 12.5.2 MAC Frames and MAC Addresses ..... 12.5.3 Other Data Link Protocols 12.6 Network Layer: IP and MPLS ..... 12.6.1 Packet-Switched Networks ..... 12.6.2 Routing Table Updates ..... 12.6.3 MPLS 12.7 Transport Layer: TCP and UDP ..... 12.7.1 Reliability ..... 12.7.2 Port Numbers 12.8 Session Layer: POP, SIP, HTTP ..... 12.8.1 Password Authentication ..... 12.8.2 Authentication Servers ..... 12.8.3 Password Caching ..... 12.8.4 Cookies ..... 12.8.5 Client-Server Sessions ..... 12.8.6 Peer-Peer Sessions 12.9 Presentation Layer: ASCII, Encryption, Codecs 12.9.1 Character Coding ..... 12.9.2 E-Mail Coding ..... 12.9.3 Codecs ..... 12.9.4 Data Compression ..... 12.9.5 Symmetric Encryption: Private Key ..... 12.9.6 Asymmetric Encryption: Public Key Encryption and Digital Signatures ..... 12.9.7 Example of Separability of Layers ..... 12.9.8 Example of Peer Protocol 12.10 Application Layer: SMTP, HTML, English … ..... 12.10.1 Email ..... 12.10.2 More Application Layer Examples 12.11 Protocol Stacks ..... 12.11.1 Example: Web Surfing ..... 12.11.2 Voice over IP 12.12 Protocol Stack in Operation: Ukrainian Dolls ..... 12.12.1 Communications Flow ..... 12.12.2 Segmentation at Each Layer ..... 12.12.3 Nested Headers 12.13 Standards Organizations ..... 12.13.1 ISO ..... 12.13.2 DOD and IETF ..... 12.13.3 ITU and Bellcore ..... 12.13.4 TIA and IEEE ..... 12.13.5 3GPP ..... 12.13.6 ANSI

Telecommunications

Telecommunications PDF

Author: Claude Servin

Publisher: Springer Science & Business Media

Published: 2012-12-06

Total Pages: 239

ISBN-13: 1447108930

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An updated translation of the original French publication published by Masson in 1996. This work exposes step by step the basic concepts which control the implementation of a telecommunication network. In applying the international standard organisation (ISO) model the author gives a pragmatic description of a coherent, progressive build-u p of the telecommunication system. This should permit students of telecommunications and information sciences, as well as practitioners, to rediscover the subject within the list of standards and regulations which comprise the subject of telecommunications. The author is responsible for telecommunications at the French Ministry of Defence, and lectures at the Conservatoire National d'Arts et Métiers.

Communication Network Protocols

Communication Network Protocols PDF

Author: Brian W. Marsden

Publisher:

Published: 1991

Total Pages: 561

ISBN-13: 9780862382766

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The third edition of this undergraduate and post-graduate text should be of interest to those needing a grounding in the principles of Open Systems Interconnection. The OSI material in the third edition has been expanded and updated to include the 1988 revision of the Message Handling Systems recommendations, changes to CCR and the acknowledged connectionless LAN logical link control class of procedure. traditional message switching techniques, based on the now defunct BSC protocol, in order to highlight the weaknesses of this approach rather than examine these procedures in detail. This discussion leads naturally to a discussion of protocol structuring and standardization. containing a chapter on standards organizations and the standards process, followed by detailed discussions of HDLC, X.25 and the triple X character terminal handling recommendations. by briefly examining some UK academic interim application protocols. The reference model itself is then discussed, together with general OSI conventions. To round off this part, the lowest three OSI layers (physical, data link and network) are examined in detail, particular emphasis being placed on local area networks, IEEE project 802 and the relationship of X.25 to OSI. applications, chapters being devoted to the transport, session and presentation layers, as well as the structure of the application layer and the ACSE (1988), CCR (1990), RTSE (1988) and ROSE (1988) application services. The discussion of the presentation layer includes detailed material on ASN.1. chapter each on the FTAM, JTM, VT and MHS standards, as well as one containing material on registration, formal definition, conformance, profiles, the OSI directory and brief discussions of some other emerging applications such as MMS, ODA, SGML, TP and RDA. CCITT recommendations.

Telecommunication Networks

Telecommunication Networks PDF

Author: Mischa Schwartz

Publisher: Prentice Hall

Published: 1987

Total Pages: 774

ISBN-13:

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Written by one of the most respected members in the telecommunications industry, this book covers the field of telecommunications and the rapidly evolving network technologies of the future. Both packet switching and circuit switching are covered in detail from qualitative discussion to performance analysis.

Packet Guide to Core Network Protocols

Packet Guide to Core Network Protocols PDF

Author: Bruce Hartpence

Publisher: "O'Reilly Media, Inc."

Published: 2011-06-03

Total Pages: 264

ISBN-13: 1449313248

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Take an in-depth tour of core Internet protocols and learn how they work together to move data packets from one network to another. With this updated edition, you’ll dive into the aspects of each protocol, including operation basics and security risks, and learn the function of network hardware such as switches and routers. New chapters examine the transmission control protocol (TCP) and user datagram protocol in detail. Ideal for beginning network engineers, each chapter in this book includes a set of review questions, as well as practical, hands-on lab exercises. You’ll explore topics including: Basic network architecture: how protocols and functions fit together The structure and operation of the Ethernet protocol TCP/IP protocol fields, operations, and addressing used for networks The address resolution process in a typical IPv4 network Switches, access points, routers, and components that process packets TCP details, including packet content and client-server packet flow How the Internet Control Message Protocol provides error messages during network operations How network mask (subnetting) helps determine the network The operation, structure, and common uses of the user datagram protocol