Slow Connection detected

Surfing the World Wide Web, a weekly article

[ The importance of a good title ] [ Increase your surfing speed ] [ Hotmail using an e-mail client ] [ Surfing The World Wide Waves, a weekly article, problems with e-mail security ] [ Which E-mail Account Should I Take ] [ Spam: Advertising Without Polluting ] [ Geocities: A Web Portal ] [ Dangers of Relying on one Website for all your Information ] [ ICQ (I seek you) ] [About Video Compression] [Ancient Worlds, an online community about ancient civilizations ][Seti At Home][1st page 2000][Computers playing with our emotions] [Nainwak] [The Flipside] [Nochicktrix] [Exploring discussion forums] [External capture devices] [Euro Datagrid project] [Telecom 2003] [High speed data transfer] [Telecom 2003 summary] [Peer to peer mobile telephony] [Nokia 7250i] [WIFI] [Earth Station 5] [Tim Berners Lee Knighted] [Link Validator] [Bittorrent technology] [WebCamFirst] [Yeti Sports] [Rate Me] [Nokia 3220] [Dancing Badgers] [pacific Nainwak] [Redbull Flash website] [KOrganiser] [Bittorrent] [Mercora] [Avid Free DV] [Warzabidul pour Kaland version 4.0] [WiFI] [Rumantsch on the web] [Being a student in 2004] [Make Love Not Spam] [Skype] [Orkut and internationalism] [The future of television watching] [Picasa 2 and Hello from Google] [mapping London] [An RSS aggregated world] [Distributed proofreading][The Myspace documentary ][Discussion Forum]

Surfing the World Wide Waves (WWW)

High speed data transfer

Over the past few days CERN have been discussing high speed data transfer via fibre optic links. This demonstration is particularly interesting because of the speed at which these transfers are being made.

The technology behind these trials is not yet available to the public and there are only a limited amount of servers able to send files at such high speeds. They have succesfully sent files at speeds of up to 5.6 gigabits per second. With the ADSL Modem you are receiving data at around 128Kb/s. In Effect the CERN used the Translantic grid network to send data at the rate of one dvd per second.

The challenge itself is quite impressive considering the technology behind it. Firstly you need two powerful machines, one set up to receive the data and the other to transmit. The point about transferring such huge amounts of data is that you need to store all this information in the Random access memory before you are able to send it down the tube. Quite large amounts of ram are required to store this data before sending therefore you'd need at least 8Gbytes of ram before you're able to send the data down the line to be received. To give you an idea of the amount of data imagine that your connection is a water pistol and the CERN's usage is a firehose. With this comparison you get an idea of the huge quantity of data travelling down the line at just one moment.

Limitations with such high amounts of data are actually found within the machines themselves. The amount of processing power and the amount of RAM required is more than can be found in conventional equipment and at the moment one of the larger problems is an element of too much capacity in terms of badnwidth compared to what can be used either over the fibre or by the various ISP's who would need to upgrade their own system.


Back to Telecom 2003

Articles by Richard Azia unless otherwise indicated.

Other sections

[My CV] [My calendar] [Video compression] Cinema studies [Video compression] [Surfing the World Wide Waves] [Environmental Systems] [Browse through this DVD collection] [What's new to the site] [The previous main page] [About this website][Discussion Forum]

Contact me

Visit the Perspectives online bookshop, search for books and buy them online