P2P 모델과 전망 대우정보시스템 장 명 석
What is P2P? Path to Profitability 지식 교환 개념: 지식 포탈 Peer-to-Peer: 등 배간 연결 PC-to-PC, PC-to-Phone, Phone-to-PC People-to-People, Person-to-Person <출전: 박 종의/청운대학교 교수>
What is Peer-to-Peer? P2P와 저작권 Resource: Intel Corporation Pure Model Peers have same capability And responsibility. Symmetric Communication Hybrid Model Servers facilitate the Interaction between the Peers. Sharing of Computing Resources via Direct Exchange Between Computers
Second Generation: Web Biz 모델 웹: 클라이언트-서버 구조와 하이퍼 미디어의 결합 Yahoo(포탈), Amazon(B2C EC) B2B EC: 수익 모델의 어려움. WWW = Client-Server Architecture + Hypermedia Thin Client to Huge Server Network Computer Contents at the Center Model Centralized Processing
Third Generation P2P Client-to-Client PC Contents at the Edge Model Distributed Computation 배경 ADSL 등 초고속 통신망의 발전 PC의 고성능화 서버 집중식 모델의 한계성: 나선형 비용 상승, Robustness
P2P의 적용 분야 공유 파일 공유: Digital Contents, Anti-Virus Variations: No Server Model, Plug-In Model. CPU 공유: Computing Power Service Provider Network is the Computer! 검색: Web+PC 검색, 분산협동 검색 커뮤니케이션과 공동 작업 메신저, 지식/프로젝트 관리 Game Network 상거래 디지털 파일 유통 소비자 중심 수요/공급 체인 네트워크: OPEN4U 출전: 이 경전/고려대학교 교수
PtP Working Group architecture Organization Member Steering Committee ~7 Steering Committee Tech Committee Tech Committee Tech Committee subcomittees Contributors Participants
ICSI Workshop Workshop on Design Issues in Anonymity and Unobservability Attacks on Systems Anonymous Publishing Mix Systems Identity Management Pseudonyms & Remailers July 25-26, 2000 International Computer Science Institute(ICSI) Berkeley, California P2P와 저작권 Traffic Analysis Free Mix routes Freenet The Free Haven Project Onion Routing Security Web MIXes PISA(Privacy Incorporated Software Agent) Identity Management Pseudonymization of Audit Data Protection Profiles for Remailer Mixes
ICSI Workshop - Freenet P2P와 저작권 Ian Clarke created the original Freenet design. It was completed in June 1999 on the Internet... aim is to provide a means by which information can be shared without fear of censorship of any kind.. (by Ian Clarke) Similar to Gnutella or the Free Haven by MIT. http://freenet.sourceforge.net/ Source: http://freenet.sourceforge.net/
P2P 전자 상거래 인터넷 등장: 오프라인 중개상이 사라짐 P2P 등장: 인터넷 중개상의 미래는? Open4U(http://www.open4u.co.kr) 수익 모델 실현성 확인이 주목 받고 있음. Lightshare(http://www.lightshare.com) Microsoft, Netscape, Google의 이사진 투자 참여 Kalepa Networks(http://www.kalepa.com) 프로세싱 분산(distributed processing)의 상용화 추진: Akamai Technologies
Traditional Internet Content Without FreeFlow Delivery Flow 1 User enters standard URL 1 3 2 Customer s Web Server returns HTML with embedded URLs 2 4 Customer Web Server 3 User s browser requests embedded objects 4 Rich content is served across the Internet
FreeFlow - The Akamai With FreeFlow Solution 1 Initial HTTP request user enters standard URL Content Provider s Source Servers 2 HTML code contains ARLs (Akamai Resource Locator) HTTP request for embedded content 3 4 Content Served Akamai Server #1 3b Or Retrieved if content not found on server #1 Retrieved if content not found on server #1 3a Akamai Server #2
국내 P2P 업체(무순) 소리바다(http://www.soribada.com) 씨프렌드(http://www.seefriend.co.kr) 창세시스템(http://www.genesys.co.kr) 에듀-메신저(http://www.edumessenger.co.kr) 디지토닷컴(http://www.digito.com) E-tok(http://www.etok.co.kr) MnJoy(http://www.mnjoy.co.kr) 넷페논(http://www.narago.com)
외국 P2P 업체(무순) 냅스터(http://www.napster.com) 아이매시(http://www.imash.com) 그누텔라(http://www.gnutella.com) 프리넷(http://freenet.sourceforge.net) 애플수프(http://www.applesoup.com) 라이트셰어(http://www.lightshare.com) 스코어(http://www.scour.com) 망고소프트(http://www.mangosoft.com)
기 타 P2P의 수익 모델 P2P 모델의 문제점 안전성, 신뢰성의 문제 Peer Program의 유지 보수 문제 사용자의 책임성 vs. 실제 상황 온라인 존재 필요성 vs. 중복에 의한 Robustness 속도의 문제: 서버와의 협력 보안의 문제 확장 가능성의 문제 대역폭의 낭비 vs. New Moore s Law 통제의 어려움 vs. Privacy P2P 성공 전략 P2P의 의미
KSOS, Knowledge Sharing Open System Whole Accessible Files in the Internet Contents on Web (Knowledge and Information) Microsoft s Focus (.NET) Contents in PC (including Personal Know-How) P2P Focus (KSOS) Target of Peer-to to-peer Business would be all kinds of Know-How possessed by clients and any information in the end-user PCs which have storage device connected to the internet.
KSOS, Knowledge Sharing Open System KSOS Admin (Win) Administration Tools * 정식 Version에 추가 기능 KSOS Server Manager KSOS Server (Linux) Knowledge Search Engine KSOS Web (Linux) P2P Web Interface BBS server Chatting server IM server P2P File Sharing server BBS Web Interface E-mail Beep KSOS Client (Win) KSOS Web Browser BBS Client Chatting Client IM Client P2P File Sharing Client PKMS KSOS Next (Win) Keyword Extractor Doc Classifier Doc Summarizer ASCII Filter Hwp Filter Word Filter Pdf Filter Mp3 Filter Html Filter txt hwp doc pdf mp3 Mpg html
P2P 시장 진입 전략 q Community q 인터넷 중개상 q Infrastructure q Production N기업과의 협력 Positioning Addressing Z기업과의 협력 Private Privacy