COMPUTER NETWORKS

JAWAHARLAL NEHRU TECHNOLOGICAL UNIVERSITY ANANTAPUR.

MCA II-I Sem                                                                                                                      

(9F00302) COMPUTER NETWORKS

UNIT I

Network hardware,  Reference models, Transmission media, Narrow band and Broadband ISDN, ATM.

UNIT II

The Data Link layer, Design issues, Error detection and correction, Elementary Data link protocols, Sliding window protocols, Data link layer in HDLC, Internet and ATM.

UNIT III

Channel allocation methods, TDM, FDM, ALOHA, Carrier sense Multiple access protocols, Collision free protocols, IEEE standard 802 for LANs-Ethernet, Token Bus, Token ring-Bridges.

UNIT IV

NETWORK LAYER-Routing Algorithms, Shortest path, Flooding, Flow based, Distance vector, Link state, Hierarchical, Broadcast Routing. Congestion control algorithms-General principals of congestion control, Congestion prevention polices, choke packets and Load shedding.

UNIT V

INTERNETWORKING, Tunneling, internetworking, Fragmentation, Network layer in the Internet-IP protocols, IP address, Subnets, Internet control protocols, OSPF, BGP, Internet multicasting, Mobile IP, Network layer in the ATM networks-cell formats, connection setup routing & switching, service categories, and quality of service, ATM LANS.

UNIT VI

The Transport Layer – Elements of transport protocols-addressing, establishing a connection, releasing connection, flow control & buffering & crash recovery, END TO END PROTOCOL-UDP-reliable byte streams(TCP)-end to end format, segment format connection establishment & termination, sliding window revisited, adaptive retransmission.

UNIT VII

Application layer, Network Security- Cryptographic Algorithms, DES, RSA, security mechanisms, Authentication protocols, Message Integrity protocol, Firewalls-Filter based Firewalls, Proxy based firewalls, limitations.

UNIT VIII

Application layer, Name service(DNS) Domain Hierarchy, Name servers, Name resolutions, Traditional applications, SMTP, MIME, World Wide Web-HTTP, Network Management, SNMP.

REFERENCES:

1. Computer Networks -- Andrew S Tanenbaum, 4th Edition. Pearson Education
2. William Stallings. “Data and Computer Communication”, 7e, 2003, PEA.
3. An Engineering Approach to Computer Networks-S.Keshav,2nd Edition,Pearson

   Education.

4. .Understanding communications and Networks,3rd Edition, W.A.Shay,Cengage Learning.

5. .Computer and Communication Networks Nader F. Mir, Person Education

6. Computer Networking:A Top-Down Approach Featuring the Internet,James

   F.Kurose,K.W.Ross,3^rd Edition,Pearson Education.