Yes throttling is there, but ISPs apply per-protocol/per-port rules, to mainly limit "file-sharing" peer-to-peer connections.
Best regards, Tomasz Janeczko amibroker.com ----- Original Message ----- From: Herman To: Tomasz Janeczko Sent: Monday, June 16, 2008 9:09 AM Subject: Re: [amibroker] The Curbs on Internet Usage Internet BW is limited and something will eventually have to give. Smaller ISPs cannot survive here and are simple bought out by the big boys. My own ISP had great support but was bought out, now support is "24/7", this means you spend hours waiting on the phone to get through. Trottling is already done in Canada (and i think the US) and my earlier posts on "Using Muliple ISPs" addressed my concerns by considering the use of multiple ISPs. Just Google "Internet Throttling" to see what we are dealing with here. best regards, herman For tips on developing Real-Time Auto-Trading systems visit: http://www.amibroker.org/userkb/ Monday, June 16, 2008, 2:37:53 AM, you wrote: > Hello, Don't worry. In Poland the biggest telecom (Telekomunikacja Polska) tried that on DSL subscribers. They were limiting download speed limit after reaching certain threshold for about two years, but competing companies (even though much smaller) that were NOT imposing any limits started to gain market share because people did not like limits and moved to competition. That scared off the biggest one and they finally dropped the idea and now there are no limits. US way more competitive market won't allow this idea to survive. As to your question, it depends whenever data source compresses the stream or not, how many trading hours are, etc. For uncompressed stream of frequently traded instruments that can be more than 100000 ticks per day x 24 bytes (ticker ID, timestamp, price, size) minimum per tick you may end up with 2.4MB per symbol per day. Note that feeds may use more bandwidth than 24 bytes per tick if source is not very optimized for transfer size. Best regards, Tomasz Janeczko amibroker.com ----- Original Message ----- From: dave_88_1961 To: [email protected] Sent: Monday, June 16, 2008 3:17 AM Subject: [amibroker] The Curbs on Internet Usage Hi, Looks like the future will bring a type of pay as you use for internet bandwith, Time Warner is testing it and Comcast is slowing down volume users. Does anybody have any idea of what real time data, say for 100 symbols amounts to for a month's of usage? Here is a link for one story about it http://www.nytimes.com/2008/06/15/technology/15cable.html?_r=1&ref=todayspaper&oref=slogin Thanks, Dave
