INSY 3303-- Topic_6 => Using Network Communication Protocols

INSY 3303-- Topic_6 => Using Network Communication Protocols

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Unformatted text preview: Topic #6 Using Network Communication Protocols Objectives Explain network protocols, including IPX/SPX, NetBEUI, AppleTalk, and TCP/IP Discuss how IP addressing works Understand the promise of IPv6 Explain and use application protocols in the TCP/IP suite Compare TCP/IP to the OSI model Discuss WAN protocols used for remote communications Understand how to design a network to use TCP/IP and application protocols An Overview of Network Protocols Protocols enable effortless interchange Analogize protocols to dialects Computer communication requires common protocol Human communication requires common dialect LANs may transport multiple protocols Network device (such as router) makes distinctions Example: Ethernet hosts TCP/IP for Windows server, AppleTalk for Macintosh computer Pros and cons of hosting multiple protocols Pro: networks perform many different functions on LAN Con: volume of network traffic increases Computer Networks & Distributed Properties of a LAN Protocol Capabilities included in properties of LAN protocol Enable reliable network links Communicate at relatively high speeds Handle source and destination node addressing Follow standards, particularly the IEEE 802 standards Protocols have different strengths and drawbacks Example 1: some (not all) protocols are routable Example 2: some protocols have poor error checking Protocols typically used on LANs IPX/SPX, NetBEUI, AppleTalk, and TCP/IP TCP is most widely used due to relation to Internet Understanding IPX/SPX Internetwork Packet Exchange (IPX) Developed by Novell for NetWare operating system NetWare used with Ethernet bus, token ring, ARCnet Modeled after Xerox Network System (XNS) protocol Sequenced Packet Exchange (SPX) Companion protocol to IPX Developed for use with applications, such as databases IPX/SPX used on NetWare servers through version 4 TCP/IP is preferred protocol for NetWare 6 and above New NetWare versions can still implement IPX/SPX Advantage of IPX: routable over multiple networks Disadvantage: "chatty" protocol increasing traffic Open Datalink Interface (ODI) driver Manages multiple protocols used on NetWare network Supports NetWare file servers, mainframes, minicomputers, Internet ODI adaptable to network clients running Windows Windows option for connecting to NetWare server Configure Microsoft NetWare Link (NWLink) IPX/SPX and MS Network Driver Interface Specification (NDIS) NDIS and Novell's ODI run at Data Link LLC sublayer Understanding NetBEUI NetBEUI (NetBIOS Extended User Interface) Developed for LAN Manager and LAN Server Predates Windows NT NetBEUI used in early versions of Windows NT NetBEUI not supported in Windows XP or Windows Server 2003 (or higher) Disadvantages of NetBEUI Cannot be routed Causes unnecessary traffic...
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INSY 3303-- Topic_6 => Using Network Communication Protocols

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