2. Chapter Objectives. Identify the characteristics of TCP/IP, IPX/SPX, NetBIOS, and AppleTalkUnderstand the position of network protocols in the OSI ModelIdentify the core protocols of each protocol suite and its functionsUnderstand each protocol's addressing schemeProtocols on client OS's. 3.
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1. 1 Chapter Four
2. 2 Chapter Objectives Identify the characteristics of TCP/IP, IPX/SPX, NetBIOS, and AppleTalk
Understand the position of network protocols in the OSI Model
Identify the core protocols of each protocol suite and its functions
Understand each protocol’s addressing scheme
Protocols on client OS’s
3. 3 Introduction to Protocols Protocols
Rules a network uses to transfer data
Not ‘magic’ – need planning and configuration
The Protocol you choose will depend upon:
Organization’s technical expertise
Security and speed requirements
Does it need to be routable?
Span > 1 lan segment
Routable because they carry L3 info that can be interpreted by a router.
Need > 1 protocol – multi-protocol network
4. 4 TCP/IP Transmission Control Protocol/Internet Protocol (TCP/IP)
v 4.0 (6.0)
Suite of small, specialized protocols called subprotocols
Protocol foundation of ARPAnet (late 60’s)
Many NOS’s and OS’s support
5. 5 TCP/IP Compared to the OSI Model Application layer roughly corresponds to Application and Presentation layers
Transport layer roughly corresponds to Session and Transport layers
Internet layer is equivalent to the Network layer
Network Interface layer roughly corresponds to Data Link and Physical layers
6. 6 TCP/IP and the OSI Model WINSOCK API, FTP, TFTP, HTTP, SMTP, DHCP TCP, UDP IP, ICMP, ARP Formatting of data and transmission to the wire