Difference between revisions of "Packet Switching"
m (Fixed some grammer issues.) |
(i change the word think to "Imagine", it is more appropriate.) |
||
Line 11: | Line 11: | ||
|...by students=<em><b>When traffic stops</b> | |...by students=<em><b>When traffic stops</b> | ||
<br />Have you experienced when a picture or background or icon/buttons from a web-page would not show-up? <br/> | <br />Have you experienced when a picture or background or icon/buttons from a web-page would not show-up? <br/> | ||
− | + | Imagine that each package is a car, in a circuit-switching, if one car crashes, then all other cars would need to wait for that car to recuperate.<br/> | |
But, what about side-roads? One car could crash but other do not need to wait. They can use other roads.<br/> | But, what about side-roads? One car could crash but other do not need to wait. They can use other roads.<br/> | ||
Package-switching is like that. There is no specific road that a package need to go.<br/> | Package-switching is like that. There is no specific road that a package need to go.<br/> | ||
Line 19: | Line 19: | ||
==How does it work?== | ==How does it work?== | ||
− | + | Imagine that you have made a jigsaw puzzle. You are sending each piece of puzzle to all your classmates you had in early childhood with a message that has the date, time and place to meet. Your goal is to gather all your classmates and construct the puzzle with everyone.<br/> | |
[[image:PackageS3.jpg|frame|none|puzzle sending]] | [[image:PackageS3.jpg|frame|none|puzzle sending]] |
Revision as of 21:37, 8 December 2009
COMP1260 > Understanding the Internet
IntroductionHave you ever thought about how the Internet sends information to other users?
|
...by studentsWhen traffic stops
|
How does it work?
Imagine that you have made a jigsaw puzzle. You are sending each piece of puzzle to all your classmates you had in early childhood with a message that has the date, time and place to meet. Your goal is to gather all your classmates and construct the puzzle with everyone.
Package Switching works in the same way.
The message would be packaged and send to the destination. This packages doesn't need to go through the same roads. As all the packets necessary to construct the message arrives to its destination, packets are reassembled into original message.
Circuit-switching vs Package-switching
Circuit-switching is another protocol which sends message to others. It is normally used in telephone communications. Circuit-switching is quicker then package-switching, but circuit-switching needs data to be send in order and in the same time. Package-switching is more efficient and robust, and can withdraw some days in transmitting. For that, package-switching is better used in e-mails and website, where circuit-switching is more based for real-time data transmition.
References
- Wikipedia
- Shiri Chechik, Adi Gati Protocols and Computer Networks Course at Tel Aviv University
- The Linux Information ProjectPacket Switching DefinitionNovember 4, 2005.
Example?
This is a flash demonstration.
Previous Page: Domain Names, IP Addresses and URLs |
Next Page: FTP |