lec-11 - What's Next. Transport Layer Transport Layer...

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28 Aug 2008  BITS C481 (Computer Networks) 1 What’s Next… Transport Layer Transport Layer Services Multiplexing/Demultiplexing Connectionless and Connection Oriented TCP and UDP Reliable data transfer Flow control Congestion control
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28 Aug 2008  BITS C481 (Computer Networks) 2 Transport services and protocols Provide logical communication between app processes running on different hosts Transport protocols run in end systems Send side: breaks app messages into segments , passes to network layer Rcv side: reassembles segments into messages, passes to app layer Protocols Internet: TCP and UDP application transport network data link physical logical end-end transport
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28 Aug 2008  BITS C481 (Computer Networks) 3 Transport vs. network layer Network layer: logical communication between hosts Transport layer: logical communication between processes Relies on, enhances, network layer services Household analogy: 12 kids sending letters to 12 kids Processes = kids App messages = letters in envelopes Hosts = houses Transport protocol = Ann and Bill Network-layer protocol = postal service
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28 Aug 2008  BITS C481 (Computer Networks) 4 Internet transport-layer protocols Reliable, in-order delivery (TCP) Congestion control
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This note was uploaded on 07/20/2009 for the course INFORMATIO BITS C481 taught by Professor Prof.virendrasinghshekhawat during the Fall '08 term at Birla Institute of Technology & Science, Pilani - Hyderabad.

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lec-11 - What's Next. Transport Layer Transport Layer...

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