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Technology Stocks : The *NEW* Frank Coluccio Technology Forum
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To: MikeM54321 who wrote (2527)4/16/2001 3:15:59 PM
From: aladin  Read Replies (1) of 46821
 
MikeM,

Absolutely not, but sorta :-). ftth is stating that for their system to work the local application program would have to cache enough of the stream to make it usable for these type of features.

My comments were generally meant to be non-specific to their server. Multicast is a transport methodolgy - not an application. However, the concept of local application caching could work with multicast as easily as unicast.

My one specific comment was that the largest backbone providers already support multicast. Why is this good? For example if I buy a UUNet connection and launch a DVD quality video service at 5.4mb then I need only buy enough bandwidth for the number of unique streams I require. So lets assume 8 streams - this translates into 43.2 mb which fits in a DS-3 which will cost me about $23,000 per month to operate.

If I were to use DF enabled servers on unicast I would need only 700kb per stream, but would need this on a per user basis! If my intended audience is more than 62 users I begin to lose money.

At 200 users I must upgrade to an OC-3 (but because I am now buying in bulk I am probably only doubling my cost - instead of tripling it).

Since they support multicast - their real advantage is the compression - or whatever they want to call the process - that permits a DVD-like image in only 700kb.

Thanks,

John
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