Computer networks. Principles, technologies, protocols. Textbook. Olifer V. G., Olifer N. A.
3rd ed. - St. Petersburg: 2006. - 958 p.
During the time that has passed since the release of the first two editions, the network world has not stood still, new protocols and types of equipment have appeared and existing ones have been improved. All these changes have required a radical revision of some sections of the book, although most of it is still devoted to traditional networking principles, fundamental concepts and basic, established network technologies. The book is intended for undergraduates, graduate students and technical specialists who would like to gain basic knowledge about the principles of building computer networks, understand the features of traditional and emerging technologies of local and wide area networks, and study ways to create large composite networks and manage such networks.
Recommended by the Ministry of Education of the Russian Federation as teaching aid for students of higher educational institutions studying in the field of “Informatics and Computer Science” and in the specialties “ Computing machines, complexes, systems and networks", "Automated machines, complexes, systems and networks", " Software computer technology and automated systems".
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Summary
Thanks 20
From the authors 21
From the publisher 26
Part I: Basics of Data Networks
Chapter 1. Evolution of computer networks 28
Chapter 2. General principles building networks 45
Chapter 3. Packet and circuit switching 79
Chapter 4. Network architecture and standardization 118
Chapter 5. Network Examples 157
Chapter 6. Network characteristics 185
Chapter 7. Methods for ensuring quality of service 214
Part II. Physical Layer Technologies
Chapter 8. Communication lines 256
Chapter 9. Data Encoding and Multiplexing 286
Chapter 10. Wireless transmission data 317
Chapter 11. Primary networks 345
Part III. Local networks
Chapter 12. Ethernet Technology 383
Chapter 13: High Speed Ethernet 429
Chapter 14. Local networks based on shared media 449
Chapter 15. Switched local networks 496
Chapter 16: Switch Intelligence 534
Part IV. TCP/IP networks
Chapter 17. Addressing in TCP/IP networks 564
Chapter 18. Internetwork Protocol 598
Chapter 19. Basic TCP/IP Protocols 651
Chapter 20. Additional functions IP network routers.... 701
Part V. Wide Area Network Technologies
Chapter 21. Virtual channels in global networks 741
Chapter 22. IP technology in global networks 782
Chapter 23. Remote access 833
Chapter 24. Securing Network Traffic 872
Conclusion. Looking to the Future 916
Recommended and used literature 919
Alphabetical index 922
General principles of building computer networks.
From centralized systems to computer networks.
Evolution of computing systems.
Computer networks - special case distributed systems.
Basic software and hardware components of the network.
What does the use of networks give to an enterprise?
The main problems of building networks.
Communication between a computer and peripheral devices.
The simplest case of interaction between two computers.
Problems of physical data transmission over communication lines.
Problems of combining several computers.
Ethernet - example standard solution network problems.
Structuring as a means of building large networks.
Network services.
Concept<открытая система>and problems of standardization.
Multi-level approach. Protocol. Interface. Protocol stack.
OSI model.
Layers of the OSI model.
Concept<открытая система>.
Modularity and standardization.
Sources of standards.
Standard communication protocol stacks.
Local and global networks.
Features of local, global and metropolitan networks.
Differences between local networks and global ones.
The trend towards convergence of local and global networks.
Networks of departments, campuses and corporations.
Networks of departments.
Campus networks.
Corporate networks.
Requirements for modern computer networks.
Performance.
Reliability and safety.
Extensibility and scalability.
Transparency.
Supports different types of traffic.
Controllability.
Compatibility.
Fundamentals of discrete data transfer.
Communication lines.
Types of communication lines.
Communication line equipment.
Characteristics of communication lines.
Cable standards.
Methods for transmitting discrete data at the physical level.
Analog modulation.
Digital coding.
Logic coding.
Discrete modulation of analog signals.
Asynchronous and synchronous transmission.
Data transmission methods of the link layer.
Asynchronous protocols.
Synchronous character-oriented and bit-oriented protocols.
Connection-based and connectionless transmission.
Error detection and correction.
Data compression.
Switching methods.
Channel switching.
Packet switching.
Message switching.
Basic technologies of local networks.
Protocols and standards of local networks.
General characteristics of local network protocols.
Structure of IEEE 802.X standards.
Logical Link Control Layer LLC (802.2) protocol.
Three types of LLC level procedures.
LLC personnel structure. Procedure with restoration of LLC2 frames.
Ethernet technology (802.3).
Access method CSMA/CD.
Maximum Ethernet performance.
Ethernet technology frame formats.
Ethernet Physical Medium Specifications.
Methodology for calculating Ethernet network configuration.
Token Ring technology (802.5).
A token method for accessing a shared environment.
Formats Frame Token Ring.
Physical layer of Token Ring technology.
FDDI technology.
Main characteristics of the technology.
Features of the FDDI access method.
Fault tolerance of FDDI technology.
Physical layer of FDDI technology.
Comparison of FDDI with Ethernet and Token Ring technologies.
Fast Ethernet and 100VG - AnyLAN as a development of Ethernet technology.
Physical layer of Fast Ethernet technology.
Rules for constructing Fast Ethernet segments when using repeaters.
Features of 100VG-AnyLAN technology.
High-speed Gigabit Ethernet technology.
General characteristics of the standard.
Means of ensuring a network diameter of 200 m on a shared medium.
802.3z physical media specifications.
Gigabit Ethernet over Category 5 twisted pair cable.
Construction of local networks according to physical and data link level standards.
Structured cabling system.
Hierarchy in the cable system.
Selecting the cable type for horizontal subsystems.
Selecting the cable type for vertical subsystems.
Selecting the cable type for the campus subsystem.
Hubs and network adapters.
Network adapters.
Hubs.
Logical network structuring using bridges and switches.
Reasons for the logical structuring of local networks.
Operating principles of bridges.
Local network switches.
Full duplex local network protocols.
Frame flow control during half-duplex operation.
Technical implementation and additional functions of switches.
Features of the technical implementation of switches.
Characteristics that affect switch performance.
Additional functions of switches.
Virtual local networks.
Typical schemes for using switches in local networks.
Network layer as a means of building large networks.
Principles of networking based on network level protocols.
Limitations of bridges and switches.
The concept of internetworking.
Routing principles.
Routing protocols.
Router functions.
Implementation of internetworking using TCP/IP.
Addressing in IP networks.
Types of TCP/IP stack addresses.
Classes of IP addresses.
Special IP addresses.
Using masks in IP addressing.
The order of distribution of IP addresses.
Automation of the process of assigning IP addresses.
Mapping IP addresses to local addresses.
Mapping domain names to IP addresses.
IP protocol.
Basic functions of the IP protocol.
IP packet structure.
Routing tables in IP networks.
Routing without using masks.
Routing using masks.
Fragmentation of IP packets.
Protocol for reliable delivery of TCP messages.
Routing protocols in IP networks.
Internal and external Internet routing protocols.
Distance vector protocol RIP.
Protocol<состояния связей>OSPF.
Tools for building composite networks of the Novell stack.
General characteristics of the IPX protocol.
IPX protocol packet format.
IPX protocol routing.
Main characteristics of routers and hubs.
Routers.
Enterprise modular hubs.
Blurring the lines between switches and routers.
Global networks.
Basic concepts and definitions.
Generalized structure and functions of the global network.
Types of global networks.
Global connections based on leased lines.
Analog leased lines.
Digital leased lines.
Link layer protocols for leased lines.
Using leased lines to build a corporate network.
Global communications based on circuit-switched networks.
Analog telephone networks.
Dial-up service digital channels Switched 56.
ISDN - networks with integrated services.
Computer global networks with packet switching.
The principle of packet switching using virtual channel technology.
X.25 networks.
Frame Relay networks.
ATM technology.
Remote access.
Basic schemes of global connections for remote access.
Access computer - network.
Remote access via intermediate network.
Network analysis and management tools.
Functions and architecture of network management systems.
Functional groups of management tasks.
Multi-level representation of management tasks.
Architectures of network management systems.
Control systems standards.
Standardizable elements of the control system.
Standards for management systems based on the SNMP protocol.
OSI management standards.
Monitoring and analysis of local networks.
Classification of monitoring and analysis tools.
Protocol analyzers.
Network analyzers.
Cable scanners and testers.
Multifunctional portable monitoring devices.
Monitoring local networks based on switches.
Name: Computer networks - Principles, technologies, protocols - Textbook.
During the time that has passed since the release of the first two editions, the network world has not stood still, new protocols and types of equipment have appeared and existing ones have been improved. All of these changes have required a radical revision of some sections of the book, although much of it remains devoted to traditional networking principles, fundamental concepts, and basic, established networking technologies. The book is intended for undergraduates, graduate students and technical specialists who would like to gain basic knowledge about the principles of building computer networks, understand the features of traditional and emerging technologies of local and wide area networks, and study ways to create large composite networks and manage such networks.
Recommended by the Ministry of Education Russian Federation as a textbook for students of higher educational institutions studying in the field of “Informatics and Computer Science” and in the specialties “Computers, complexes, systems and networks”, “Automated machines, complexes, systems and networks”, “Computer software and automated systems."
The following new topics were included in the third edition of the book:
Wireless technologies and networks. The absence of this topic was a rather serious shortcoming of the first and second editions of the book, which has now been eliminated. Viewed as general principles wireless communication, as well as specific technologies of this class, such as IEEE 802.11, Bluetooth, Wireless Local Loop.
The description of TCP/IP technology and related technologies has been significantly expanded: IPSec, IPv6. These changes are in line with the new role of IP in today's telecommunications world.
The approach to the description of QoS has been changed - now this topic permeates the entire book, so that the general principles of ensuring quality of service in packet networks, described in a separate chapter of the first part, are considered more specifically when studying the main transport technologies, such as switched Ethernet, IP, Frame Relay, ATM and MPLS.
The sections devoted to VPN have been written again, in more detail, in particular, the rapidly gaining popularity MPLS VPN technology is described in detail.
Many examples, drawings and problems have been added. As we can see, the formal content of the textbook has not undergone any fundamental changes. In fact, most of the book has been rewritten. Over the 6 years that have passed since the publication of the first edition of the book, not only computer network technologies have changed, but also the authors’ views on many fundamental problems of telecommunications. The result of this rethinking was the third edition of the textbook.
And finally, many minor errors and typos in the text and drawings noticed by readers and the authors themselves were corrected.
Summary
Thanks 20
From the authors 21
From the publisher 26
Part I: Basics of Data Networks
Chapter 1. Evolution of computer networks 28
Chapter 2. General principles of network construction 45
Chapter 3. Packet and circuit switching 79
Chapter 4. Network architecture and standardization 118
Chapter 5. Network Examples 157
Chapter 6. Network characteristics 185
Chapter 7. Methods for ensuring quality of service 214
Part II. Physical Layer Technologies
Chapter 8. Communication lines 256
Chapter 9. Data Encoding and Multiplexing 286
Chapter 10. Wireless data transmission 317
Chapter 11. Primary networks 345
Part III. Local networks
Chapter 12. Ethernet Technology 383
Chapter 13: High Speed Ethernet 429
Chapter 14. Local networks based on shared media 449
Chapter 15. Switched Local Area Networks 496
Chapter 16: Switch Intelligence 534
Part IV. TCP/IP networks
Chapter 17. Addressing in TCP/IP networks 564
Chapter 18. Internetwork Protocol 598
Chapter 19. Basic TCP/IP Protocols 651
Chapter 20: Additional Features of 701 IP Routers
Part V. Wide Area Network Technologies
Chapter 21. Virtual channels in wide area networks 741
Chapter 22. IP technology in global networks 782
Chapter 23. Remote access 833
Chapter 24. Securing Network Traffic 872
Conclusion. Looking to the Future 916
Recommended and used literature 919
Alphabetical index 922
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