UNIT I - Introduction and Physical Layer Networks - Network Types - Protocol Layering - TCP/IP Protocol suite - OSI Model - Physical Layer: Performance - Transmission media - Switching - Circuit-switched Networks - Packet Switching. UNIT II - Data-Link Layer and Media Access Introduction - Link-Layer Addressing - DLC Services - Data-Link Layer Protocols - HDLC - PPP - Media Access Control - Wired LANs: Ethernet - Wireless LANs - Introduction - IEEE 802.11, Bluetooth - Connecting Devices. UNIT III - Network Layer Network Layer Services - Packet switching - Performance - IPV4 Addresses - Forwarding of IP Packets - Network Layer Protocols : IP, ICMP v4 - Unicast Routing Algorithms - Protocols - Multicasting Basics - IPV6 Addressing - IPV6 Protocol. UNIT IV - Transport Layer Introduction - Transport Layer Protocols - Services - Port Numbers - User Datagram Protocol - Transmission Control Protocol - SCTP. UNIT V - Application Layer WWW and HTTP - FTP - Email -Telnet - SSH - DNS - SNMP.
