UNIT I – Fundamentals and Link Layer
Overview of Data Communications- Networks – Building Network and its types – Overview of Internet – Protocol Layering – OSI Mode – Physical Layer – Overview of Data and Signals – introduction to Data Link Layer – Link layer Addressing- Error Detection and Correction.
UNIT II – Media Access and Internetworking
Overview of Data link Control and Media access control – Ethernet (802.3) – Wireless LANs – Available Protocols – Bluetooth – Bluetooth Low Energy – WiFi – 6LowPAN-Zigbee – Network layer services – Packet Switching – IPV4 Address – Network layer protocols (IP, ICMP, Mobile IP).
UNIT III – Routing
Routing – Unicast Routing – Algorithms – Protocols – Multicast Routing and its basics – Overview of Intradomain and interdomain protocols – Overview of IPv6 Addressing – Transition from IPv4 to IPv6.
UNIT IV – Transport Layer
Introduction to Transport layer – Protocols- User Datagram Protocols (UDP) and Transmission Control Protocols (TCP) – Services – Features – TCP Connection – State Transition Diagram – Flow, Error and Congestion Control – Congestion avoidance (DECbit, RED) – QoS – Application requirements.
UNIT V – Application Layer
Application Layer Paradigms – Client Server Programming – World Wide Web and HTTP – DNS – Electronic Mail (SMTP, POP3, IMAP, MIME) – Introduction to Peer to Peer Networks – Need for Cryptography and Network Security – Firewalls.