EC2352 COMPUTER NETWORKS lecture notes | for ECE - VII semester | by R.Anirudhan

EC2352 COMPUTER NETWORKS lecture notes | for ECE - VII semester | 


syllabus :
UNIT I PHYSICAL LAYER 
Data Communications – Networks - Networks models – OSI model – Layers in OSI
model – TCP / IP protocol suite – Addressing – Guided and Unguided Transmission
media
Switching: Circuit switched networks – Data gram Networks – Virtual circuit networks
Cable networks for Data transmission: Dialup modems – DSL – Cable TV – Cable TV for
Data transfer.

UNIT II DATA LINK LAYER 
Data link control: Framing – Flow and error control –Protocols for Noiseless and Noisy
Channels – HDLC
Multiple access: Random access – Controlled access
Wired LANS : Ethernet – IEEE standards – standard Ethernet – changes in the standard
– Fast Ethernet – Gigabit Ethernet.
Wireless LANS : IEEE 802.11–Bluetooth.
Connecting LANS: Connecting devices - Backbone networks - Virtual LANS
Virtual circuit networks: Architecture and Layers of Frame Relay and ATM.

UNIT III NETWORK LAYER 
Logical addressing: IPv4, IPv6 addresses
Internet Protocol: Internetworking – IPv4, IPv6 - Address mapping – ARP, RARP,
BOOTP, DHCP, ICMP, IGMP, Delivery - Forwarding - Routing – Unicast, Multicast
routing protocols.

UNIT IV TRANSPORT LAYER 
Process-to-Process delivery - User Datagram Protocol (UDP) – Transmission Control
Protocol (TCP) – Congestion Control – Quality of services (QoS) – Techniques to
improve QoS.

UNIT V APPLICATION LAYER 
Domain Name System (DNS) – E-mail – FTP – WWW – HTTP – Multimedia Network
Security: Cryptography – Symmetric key and Public Key algorithms - Digital signature –
Management of Public keys – Communication Security – Authentication Protocols.


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