Networking Basics - Class Presentation
[Pages:37]Networking Basics
Raj Jain The Ohio State University
Columbus, OH 43210 Jain@CIS.Ohio-State.Edu
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Raj Jain
Overview
q Standards Organizations q ISO/OSI and TCP/IP Reference Model q Flow and Error Control q Ethernet, HDLC, PPP q Internet Protocol (IP), IPv6 q TCP q Domain Name System
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Raj Jain
International Standards Organizations
q ISO: International Standards Organization Chartered by United Nations
q ITU: International Telecommunications Union m ITU-T: Consultative Committee on International Telephone and Telegraph (CCITT) m ITU-R: Consultative Committee on International Radio (CCIR) m Example Standards: G.724, X.25, Q.931 m itu.ch
q IEC: International Electrotechnical Commission
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National Standards Organizations
q ANSI: American National Standards Institute m m Non-governmental, nonprofit, over 300 committees m ANSI T1.105-1995 SONET ANSI X3.131-1994 SCSI-2 m Represents USA in ITU, IEC, and ISO
Raj Jain 4
Professional Associations
q IEEE: Inst of Electrical and Electronic Engineers,
m standards.
m IEEE ISO (via ANSI)
m Ethernet IEEE 802.3 ISO 8802-3:1998
q EIA: Electronic Industries Association,
m Example: EIA-232 (RS-232)
q TIA: Telecommunications Industries Association,
m
q ATM Forum,
q Frame Relay Forum,
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Raj Jain
Professional Communities
q IETF:
m Internet Engineering Task Force,
m Originated by DARPA for TCP/IP protocol development
m Now chartered by Internet Society
m Request for Comments (RFC), E.g., rfc/rfc0793.txt = TCP
m Internet Drafts: ftp.internet-drafts/
q draft-ietf-diffserv-framework-02.txt
q draft-bhani-mpls-te-eval-00.txt
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ISO/OSI Reference Model
Application
3
Presentation
Session
2
Transport
Network
Datalink
1
Physical
File transfer, Email, Remote Login ASCII Text, Sound Establish/manage connection End-to-end communication: TCP
Routing, Addressing: IP Two party communication: Ethernet
How to transmit signal: Coding
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TCP/IP Reference Model
q TCP = Transport Control Protocol q IP = Internet Protocol (Routing)
TCP/IP Ref Model TCP/IP Protocols
Application
FTP Telnet HTTP
Transport
TCP
UDP
Internetwork
Host to Network
IP
Ether Packet Point-tonet Radio Point
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OSI Ref Model Application Presentation Session Transport Network Datalink Physical
Raj Jain
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