Computer Networks Notes (CN)

COMPUTER NETWORKS Notes

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Computer networks notes – UNIT I

Introduction to networks, internet, protocols and standards, the OSI model, layers in OSI model, TCP/IP suite, Addressing, Analog and digital signals.

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UNIT II

Physical Layer: digital transmission, multiplexing, transmission media. circuit switched networks. Datagram networks. virtual circuit networks, switch and Telephone network.

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UNIT III

Data link layer: Introduction, Block coding, cyclic codes, chccksum, framing, flow and error control, Noiseless channels, noisy channels, HDLC, point to point protocols

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UNIT IV

Medium Access sub layer: Random access, controlled access, channelization. IEEE standards. Ethernet. Fast Ethernet, Giga-Bit Ethernet, wireless LANs.

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UNIT V

Connecting LANs, backbone networks and virtual LANs, Wireless WANs, SONET, frame relay and ATM.

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UNIT VI

Network Layer: Logical addressing, internetworking, tunneling, address mapping, ICMP, IGMP, forwarding, uni-cast routing protocols, multicast routing protocols.

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UNIT VII

Transport Layer: Process to process delivery, UDP and TCP protocols, SCTP, data traffic, congestion, congestion control. QoS. integrated services, differentiated services. QoS in switched networks.

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UNIT VIII

Application Layer — Domain name space, DNS in intcrnet, electronic mail, FTP, WWW, HTTP, SNMP, multi-media, network security

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TEXT BOOKS:

  1. Data Communications and Networking — Behrouz A. Forouzan. Fourth Edition TMH,2006.
  2. Computer Networks Andrew S Tanenbaum, 4th Edition, Pearson Education.

REFERENCE BOOKS:

  1. An Engineering Approach to Computer Networks-S.Keshav,2nd Edition,Pears0n Education
  2. Understanding communications and Net’works,3rd Edition, W.A.Shay,Cengage Learning.
  3. Computer and Communication Networks ,Nader F. Mir, Pearson Education
  4. Computer Networking:A’l‘op-Down Approach Featuring the Internet. James F.Kurose,K.W.Ross,3“’ Edition,Pearson Education.
  5. Data and Computer C0mmunications,GtS.Hura and M.Singhal,CRC Press,Taylor and Francis Group.
  6. Data communications and computer Networks,P.C.Gupta,PHI.

Note :- These notes are according to the r09 Syllabus book of JNTUH.In R13 ,8-units of R09 syllabus are combined into 5-units in r13 syllabus.Click here to check all the JNTU Syllabus books 

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3 comments

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  2. It is very useful for me,thank u so much.

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