Contents

• Unit I Queuing Theory- Pure birth, Pure death & Birth-death processes, Mathematical models for M/M/1, M/M/8, M/M/m, M/M/1/K and M/M/m/m queues. Little’s formula.

   

  Unit II Physical and Data link layer – OSI model & TCP/IP reference models, Line coding schemes, Packet & Circuit switching, Virtual circuit network, Framing, Simplex protocol, Simplex stop & wait protocol, Sliding window protocol, Go back N protocol, selective repeat, HDLC, PPP

   

  Unit III MAC Sublayer- Static & dynamic channel allocation, Multiple Access Protocols: ALOHA, slotted ALOHA, CSMA, Token Bus, Token Ring, FDDI IEEE standards 1002.3 & 1002.5, Virtual circuit network: frame relay & ATM frame and protocol architecture, Network connection devices: Hubs, Bridges, switches, Routers and Gateways.

   

  Unit IV Network Layer- IPv4 & IPv6 addressing and datagram, Internetworking, Nonadaptive & Adaptive routing algorithms, Distance vector routing and Link state routing algorithms, OSPF and BGP.

   

  Unit V Transport and Application Layer- Client server paradigm, TCP frame format, Data traffic descriptors, QoS, Congestion and its control algorithms, Improving QoS by different queuing schemes, leaky bucket and token bucket implementation, Domain name, DNS in the internet, SMTP, FTP, WWW, HTTP.