Unit I Physical Layer Introduction of LAN; MAN; WAN; PAN, Ad-hoc Network, Network Architectures : Client-Server; Peer To Peer; Distributed and SDN, OSI Model, TCP/IP Model, Topologies : Star and Hierarchical; Design issues for Layers, Transmission Mediums : CAT5, 5e, 6, OFC and Radio Spectrum, Network Devices : Bridge, Switch, Router, Brouter and Access Point, Manchester and Differential Manchester Encodings; IEEE802.11: Frequency Hopping (FHSS) and Direct Sequence (DSSS). (Chapter - 1) Unit II Logical Link Control Design Issues : Services to Network Layer, Framing, Error Control and Flow Control. Error Control: Parity Bits, Hamming Codes (11/12-bits) and CRC. Flow Control Protocols : Unrestricted Simplex, Stop and Wait, Sliding Window Protocol, WAN Connectivity : PPP and HDLC. (Chapter - 2) Unit III Medium Access Control Channel allocation : Static and Dynamic, Multiple Access Protocols: Pure and Slotted ALOHA, CSMA, WDMA, IEEE 802.3 Standards and Frame Formats, CSMA/CD, Binary Exponential Back - off algorithm, Fast Ethernet, Gigabit Ethernet, IEEE 802.11a/b/g/n and IEEE 802.15 and IEEE 802.16 Standards, Frame formats, CSMA/CA. (Chapter - 3) Unit IV Network Layer Switching techniques, IP Protocol, IPv4 and IPv6 addressing schemes, Subnetting, NAT, CIDR, ICMP, Routing Protocols : Distance Vector, Link State, Path Vector, Routing in Internet : RIP ,OSPF, BGP, Congestion control and QoS, MPLS, Mobile IP, Routing in MANET : AODV, DSR. (Chapter - 4) Unit V Transport Layer Services, Berkley Sockets, Addressing, Connection establishment, Connection release, Flow control and buffering, Multiplexing, TCP, TCP Timer management, TCP Congestion Control, Real Time Transport Protocol (RTP), Stream Control Transmission Protocol (SCTP), Quality of Service (QoS), Differentiated services, TCP and UDP for Wireless. (Chapter - 5) Unit VI Application Layer Domain Name System (DNS), Hyper Text Transfer Protocol (HTTP), Email : SMTP, MIME, POP3, Webmail, FTP, TELNET, Dynamic Host Control Protocol (DHCP), Simple Network Management Protocol (SNMP). (Chapter - 6)