Contents

• 0. Introduction to Computer Networks

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  Objectives, Introduction, Nuts and Bolts of Computer Networks, Network Model, The OSI Model, TCP/IP Protocol Suite, Transmission Media, Bounded Media, Unbounded Media, Network Categories, Network Categorized Under Size, Network Categorized Under Authorization, Network Topology, Bus Topology, Star Topology, Ring Topology, Mesh Topology, Tree Topology, Hybrid Topology, Switching Techniques, Circuit Switching, Packet Switching, Difference between Circuit Switching and Packet Switching, Multiplexing, Frequency Division Multiplexing (FDM), Time Division Multiplexing, Review Questions.
   
  1. Network Layer

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  Objectives, Introduction, Network Layer Design Issue, Implementation of Connectionless Service, Implementation of Connection Oriented Service, Difference between Datagram Subnet and Virtual Circuit, Routing Algorithm, The Properties of Routing Algorithm, The Optimality Principle, The Shortest Path Routing, Flooding, Distance Vector Routing, Link-State Routing, Hierarchical Routing, Broadcast Routing, Multicast Routing, Congestion Control, General Principles of Congestion Control, Congestion Prevention Policies, Congestion Control in Virtual Circuit, Congestion Control in Datagram Subnets, Load Shedding, Jitter Control, Quality of Service, Requirements, Techniques for Achieving Good Quality of Service, Solved Numericals, Review Questions.
   
  2. Internetworking

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  Objectives, Introduction, Differences in Networks, Connecting Networks, Concatenated Virtual Circuits, Connectionless Internetworking, Tunneling, Internetwork Routing, Fragmentation, Transparent Strategy, Non-Transparent Strategy, Packet Fragmentation, The Network Layer in the Internet, IP Protocol (IPv4), IP Addressing, Subnet and Mask, CIDR (Classless Inter-Domain Routing or Supernetting), NAT (Network Address Translation), Internet Control Protocols, IGMP (Internet Group Management Protocol), Open Shortest Path First (OSPF), Border Gateway Protocol (BGP), IPv6 (Internet Protocol Version 6), IPv6 Datagram, Difference in IPv6 and IPv4, Solved Numericals, Review Questions.
   
  3. Transport Layer

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  Objectives, Introduction of Transport Layer, Services Provided by Transport Layer, Transport Layer Primitives, Elements of Transport Protocols, Addressing, Connection Establishment, Connection Release, Flow Control and Buffering, Multiplexing, Crash Recovery, The Internet Transport Protocol UDP, Difference Between TCP & UDP, Real Time Transport Protocol, RTP Control Protocol (RTPC), Remote Procedure Call (RPC), Principle of Reliable Data Transfer, Protocol 1. Reliable Data Transfer Over a Perfectly Reliable Channel, Protocol 2. Reliable Data Transfer Over a Channel with Bit Errors, Protocol 3. Reliable Data Transfer Over a Loosy Channel with Bit Errors, Go Back N (GBN), Selective Repeat (SR) Protocol, Solved Numericals, Review Questions.
   
  4. Transport Layer in the Internet

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  Objectives, Introduction to TCP, Working of TCP in Nutshell, Service Model for TCP, TCP Header and Segment Structure, TCP Connection Establishment, TCP Connection Release, TCP Transmission Policy, TCP Timer Management, Transactional TCP, TCP Congestion Control, TCP Fairness, TCP Delay Modeling, Solved Numericals, Review Questions.
   
  5. Application Layer

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  Objectives, Introduction, Service Needs, Domain Name System, The DNS Name Space, Resource Records (RR), Name Server, Resolution Process, DNS Poisoning, Electronic Mail, Architecture and Services, Message Formats, SMTP: Simple Mail Transfer Protocol, Mail Access Protocols, World Wide Web (WWW), Architecture of WWW, Responsibilities of Client Side in Web, Responsibilities of Server Side in Web, HTTP (Hypertext Transfer Protocol), HTTP Message Format, Performance Enhancement, P2P File Sharing (Peer to Peer File Sharing), Centralized Directory, Query Flooding, Exploiting Heterogeneity, Solved Numericals, Review Questions.
   
  P. Papers