3 ks91@sfc.wide.ad.jp April 22, 2002
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1. over IP ( : Voice over IP; IP Internet Protocol ) over IP??? : 2002/4/20 23:59 JST : http://www.soi.wide.ad.jp/report/ 3
32 11 (4/22 ) 4 () 3 2 1? 4
...... A.C. 3001... ()... ( ) 5
IP (amplification) (reversal) (retrieval) (obsolescence) 6
IP (amplification) (reversal) (retrieval) (obsolescence) 7
IP (amplification) (reversal) (retrieval) (obsolescence) 8
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(1) 1: ( ) A 0x41 a 0x61 ASCII (American Standard Code for Information Interchange) 0x20 11
(2) 2: ( ) -44.1kHz -16bit 12
(ex. DVD ) (/ ) (ex. ) 13
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TCP/IP 15
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Communication 1. The exchange of thoughts, messages, or information, as by speech, signals, writing, or behavior. 2. Interpersonal rapport. : The American Heritage Dictionary 20
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Protocol 1. The forms of ceremony and etiquette observed by diplomats and heads of state. 2. Computer Science A standard procedure for regulating data transmission between computers. : The American Heritage Dictionary 25
ISO (International Organization for Standardization) OSI (Open Systems Interconnection) 7 ISO/ITU-T (International Telecommunication Union) 26
OSI Application Application Presentation Presentation Session Session Transport Transport Network Data link Network Data link Physical Physical - 27
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Application Presentation Session Transport Network Data link Physical - - router Network Data link Physical Application Presentation Session Transport Network Data link Physical 29
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Network 1. An extended group of people with similar interests or concerns who interact and remain in informal contact for mutual assistance or support. 2. Computer Science A system of computers interconnected by telephone wires or other means in order to share information. : The American Heritage Dictionary 31
TCP/IP 32
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- (LAN) () - 2 34
TCP/IP -TCP -IP TCP () 2 IP 35
TCP/IP -TCP: Transmission Control Protocol -IP: Internet Protocol -IP end-to-end Application Application TCP IP Network Interface Physical IP Network Interface Physical TCP IP Network Interface Physical 36
IP TCP 37
TCP/IP -TCP -IP TCP () 2 IP 38
TCP/IP -SMTP: Simple Mail Transfer Protocol -PPP: Point-to-Point Protocol -MUA: Mail User Agent -MTA: Mail Transfer Agent SMTP MTA MUA TCP port 25 port xx TCP IP Network Interface Physical PPP IP Network Interface Physical Ethernet LAN IP Network Interface Physical 39
- - Web browser port xx TCP IP Network Interface Physical HTTP IP Network Interface Physical -HTTP: HyperText Transfer Protocol www.media-art-online.org httpd TCP IP Network Interface Physical port 80 DNS: Domain Name System 203.178.143.55 IP 40
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( ) RFC1149 (CPIP: Carrier Pigeon Internet Protocol) 42
1999/7/7 : DOCUMENT LIFE a ryuichi sakamoto opera 1999 43
(1) - 44
(2) (Everything over IP): (IP over Everything) - 45
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IP router IP version 6 version 4 2 32 2 128 47
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Roundabout ( ) - 50
1999/7/7 : DOCUMENT LIFE a ryuichi sakamoto opera 1999 51
IP ( ) IP over everything, everything over IP IP IP 52
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2. ( ) : 2002/5/11 23:59 JST : http://www.soi.wide.ad.jp/report/ 54