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CHAPTER Protocols and IEEE Standards

CHAPTER Protocols and IEEE Standards. Chapter Objectives. Discuss different protocols pertaining to communications and networking. Module. Important Communication and Networking Protocols. Layer 7. Application. Layer 6. Presentation. Layer 5. Session. Layer 4. Transport. Layer 3.

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CHAPTER Protocols and IEEE Standards

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  1. CHAPTER Protocols and IEEE Standards

  2. Chapter Objectives • Discuss different protocols pertaining to communications and networking

  3. Module Important Communication and Networking Protocols

  4. Layer 7 Application Layer 6 Presentation Layer 5 Session Layer 4 Transport Layer 3 Network Layer 2 Data Link Layer 1 Physical ISO-OSI Seven Layer Model Recalled Source: http://starter.sdsu.edu/remote/demo/osi-tcp.html

  5. Application Application Presentation Session Transport Host-to-Host Network Internet Data Link Network Access Physical Comparison of ISO-OSI Model and the DOD (TCP/IP) Model Source: http://starter.sdsu.edu/remote/demo/osi-tcp.html

  6. Application Application FTP, Telnet, SMTP, HTTP.. Presentation Session Transport Host-to-Host TCP, UDP Network Internet IP, ICMP Data Link Network Access Ethernet, Token-Ring ... Physical Layer Reference to Protocol Recalled Source: http://starter.sdsu.edu/remote/demo/osi-tcp.html

  7. POP3/SMTP • Protocol used in electronic mail transfer • Between the mail server and the mail client • POP3 • Incoming mail • IMAP • Incoming mail • More advanced and has more features than POP3 • The later version is IMAP4 • SMTP • Outgoing mail

  8. FTP • File Transfer Protocol • File transfer between a client and an FTP server • Uses ports 20 and 21

  9. Telnet • Supports terminal emulation or host sessions • For example, Telnet can be used for accessing a Unix machine and emulating a terminal attached to the Unix computer

  10. DNS • Directory service protocol • Domain Names Service (DNS) • Used for resolving domain names to IP addresses and vise versa

  11. DHCP • Dynamic Host Configuration Protocol • Issues IP addresses to client • Leases IP address • For security, a DHCP server can issue an address based on MAC address

  12. NFS • Protocol for Network File Service • For example, enable a Unix machine to function as a file server and serve files to Windows clients

  13. ARP • Address Resolution Protocol • Enables the IP and MAC addresses of clients to be identified for transmission of data

  14. SNMP • Used by network management utilities to manage network devices • For example, a manageable hub that support SNMP can be managed from a remote location using a SNMP based LAN management software

  15. IGMP • Internet Group Management Protocol • Used in multicasting

  16. ICMP • Internet Management Control Protocol • Used in network error reporting • Used by network administrators to poll devices for troubleshooting

  17. RIP • Routing Information Protocol • Used by routing devices to exchange information such as routing table contents etc. • Determines the shortest path (heuristically) from one node to another and shares the information with routing devices

  18. OSPF • Open Shortest Path First • A more efficient protocol than RIP in determining the fastest path to the destination

  19. RSVP • Resource Reservation Protocol

  20. QoS • Quality of Service

  21. NWLink • A protocol used on Windows clients to access Novel Netware servers • The exchange of information between the Windows client and the Netware server is facilitated by this protocol

  22. NWLink and IPX/SPX • IPX/SPX is Novell’s protocol • It is a routable protocol • If IPX/SPX is to be installed in a Microsoft client then the ODI driver must be installed • The alternative of installing NWLink is preferred • Works with NDIS driver

  23. Sample use of NWL ink • Access NetWare servers • Give Netware clients access to Windows servers • Set a Windows 2003 server as a gateway to NetWare servers

  24. NetBIOS and NetBEUI • NetBEUI • Originally implemented by IBM for networking • NetBIOS • Non-routable protocol

  25. DLC • Protocol used for connecting the LAN to an older IBM system • SNA based IBM network

  26. AppleTalk • Used in networks connecting Apple computers

  27. Protocol Binding • NDIS • Binding driver used with Microsoft • ODI • Binding driver used with Novell

  28. Web Research • Visit a vendor’s web site to obtain information on the configuration of a wireless LAN consisting of 2 workstations and a server

  29. End of Module

  30. END OF CHAPTER

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