C-Cube Message Board - Msg: 3764423

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Technology Stocks : C-Cube

CUBE 35.90

+0.2%

Dec 26 9:30 AM EST

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To: Don Dorsey who wrote (31144)	3/19/1998 10:07:00 AM
From: BillyG	Read Replies (1) of 50808

Are they talking about us.... Video SI would be scary, no? TCP/IP, the communications protocol of the internet, was not designed to handle satellite traffic efficiently (it takes a half second to bounce a message off a geosynchronous satellite -- ever talk an an overseas satellite link?). There are proposals to modify TCP/IP to handle satellite as well as multicast traffic more efficiently. I am certain that Divicom is working in this area. techweb.cmp.com <<As the transport layer of the TCP/IP Internet protocols, TCP takes the information for packet transmission, breaks it into pieces and then numbers each piece, so receipt can be verified and the data put back in the proper order. Because TCP requires an acknowledgement - unlike the "send and pray" Use Datagram Protocol (UDP) for packet transport - it can experience significant latencies in such long-haul links as satellite-to-terminal connections. IP Multicast regularly uses UDP, but some software developers want better control over packet services.>>

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