Friday 22 February 2013

UNIT I HIGH SPEED NETWORKS

Frame Relay Networks – Asynchronous transfer mode – ATM Protocol Architecture,

ATM logical Connection, ATM Cell – ATM Service Categories – AAL. High Speed LAN’s:

Fast Ethernet, Gigabit Ethernet, Fibre Channel – Wireless LAN’s

UNIT II CONGESTION AND TRAFFIC MANAGEMENT

Queuing Analysis- Queuing Models – Single Server Queues – Effects of Congestion –

Congestion Control – Traffic Management – Congestion Control in Packet Switching

Networks – Frame Relay Congestion Control.

UNIT III TCP AND ATM CONGESTION CONTROL

TCP Flow control – TCP Congestion Control – Retransmission – Timer Management –

Exponential RTO backoff – KARN’s Algorithm – Window management – Performance of

TCP over ATM. Traffic and Congestion control in ATM – Requirements – Attributes –

Traffic Management Frame work, Traffic Control – ABR traffic Management – ABR rate

control, RM cell formats, ABR Capacity allocations – GFR traffic management.

UNIT IV INTEGRATED AND DIFFERENTIATED SERVICES

Integrated Services Architecture – Approach, Components, Services- Queuing

Discipline, FQ, PS, BRFQ, GPS, WFQ – Random Early Detection, Differentiated

Services.

UNIT V PROTOCOLS FOR QoS SUPPORT

RSVP – Goals & Characteristics, Data Flow, RSVP operations, Protocol Mechanisms –

Multiprotocol Label Switching – Operations, Label Stacking, Protocol details – RTP –

Protocol Architecture, Data Transfer Protocol, RTCP.

TEXT BOOKS:

1. William Stallings, “HIGH SPEED NETWORKS AND INTERNET”, Pearson

Education,Second Edition, 2002.

REFERENCES:

1. Warland & Pravin Varaiya, “HIGH PERFORMANCE COMMUNICATION

NETWORKS”, Jean Harcourt Asia Pvt. Ltd., II Edition, 2001.

2 Irvan Pepelnjk, Jim Guichard and Jeff Apcar, “MPLS and VPN architecture”, Cisco

Press, Volume 1 and 2, 2003.

EQUESTION PAPERS