page3 - 1) Throughput number of bits received per second....

Info iconThis preview shows pages 1–2. Sign up to view the full content.

View Full Document Right Arrow Icon
1) Throughput – number of bits received per second. Instantaneous throughput is the current number of bits received by router per second. 2) Bottleneck – average throughput is dependent on the slowest transmission rate of a link in the network. The bottleneck link transmission rate is equal to throughput. a) For two hosts per link, bottleneck is min of each link rate. b) For multiple hosts connected to core by high speed link, the link rate must be divided among all hosts. If this rate is min of access network links then new bottleneck is the high speed link. Protocol Layer Architecture 1) Advantage – creates structure and organization 2) Disadvantage – modularity creates redundancy in layers 3) Application Layer – packet is called a message. Applications and application protocol resides in this layer. Examples are HTTP, SMTP, DNS. 4) Transport Layer – packet is called a segment. Transports application messages to application endpoints. Examples are TCP, and UDP a) TCP – provides reliability of data transfer from an end system to end system,
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Image of page 2
This is the end of the preview. Sign up to access the rest of the document.

This note was uploaded on 10/08/2008 for the course ECE 4450 taught by Professor Wicker during the Fall '07 term at Cornell University (Engineering School).

Page1 / 2

page3 - 1) Throughput number of bits received per second....

This preview shows document pages 1 - 2. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online