UNIT 1:
Introduction, Switching Techniques: Circuit Switching, Message Switching, Packet Switching, Protocols, Layered Network Architecture and Architecture of OSI & TCP/IP Reference model, ATM Model, ISDN and BISDN, Physical Layer Transmission Medium, Modem, Topologies.

UNIT 2:
Data Link Layer: Framing , HDLC, ARQ: Stop and Wait, Sliding Window. Efficiency, Error detection and Correction. CRC, Checksum, MAC Sub layer – LAN Protocols, ALOHA, Slotted, ALOHA, CSMA, CSMA/CD, Token Bus, Ring.

UNIT 3:
Network Layer: Routing – Data gram and Virtual Ckt, Dijkstra’s, Bellman Ford, DV and Link state routing. Congestion Control and ATM Traffic Management – AAL, X.25, Internet Layer : IP Protocols, ICMP,ARP and RARP.

UNIT 4:
Transport Layer: Connection Oriented transport Protocol Mechanism, TCP, TSAP, Transport Flow Regulation, UDP Fragmentation & Reassembly, Session and Transport Interaction, Synchronization Points, Session Protocols Data Unit.

UNIT 5:
Translation, Encryption / Decryption, Data Compression . Application Layer Protocols like: FTP, TFTP, RPC, Remote Login, DNS, SMTP, SNMP.