Transcript m5zn_eded614c0f40b31

Lecture 1 on Networking ITNT 3103
Network protocols
• Protocol suites are collections of protocols that enable network
communication from one host through the network to another host.
• A protocol is a set of rules that make communication on a network more
efficient
• Protocols determine the format, timing, sequencing, and error control in
data communication.
• In order for data packets to travel from a source to a destination on a
network, it is important that all the devices on the network speak the
same language or protocol
Network protocols
Protocols control all aspects of data communication, which include the
following:
• How the physical network is built
• How computers connect to the network
• How the data is formatted for transmission
• How that data is sent
• How to deal with errors
Examples
• Institute of Electrical and Electronic Engineers (IEEE),
• American National Standards Institute (ANSI),
• Telecommunications Industry Association (TIA),
• Electronic Industries Alliance (EIA)
• International Telecommunications Union (ITU), formerly known as the Comité
Consultatif International Téléphonique et Télégraphique (CCITT).
OSI & TCP/IP model
• TCP/IP was developed as an open standard.
• This meant that anyone was free to use TCP/IP. This helped
speed up the development of TCP/IP as a standard.
• Although some of the layers in the TCP/IP model have the same
name as layers in the OSI model, the layers of the two models do
not correspond exactly.
TCP/IP Protocol Stack Model
Some of the most commonly used application layer protocols include the following:
• File Transfer Protocol (FTP)
• Hypertext Transfer Protocol (HTTP)
• Simple Mail Transfer Protocol (SMTP)
• Domain Name System (DNS)
• Trivial File Transfer Protocol (TFTP)
The common transport layer
protocols include:
• Transport Control Protocol (TCP)
• User Datagram Protocol (UDP)
The primary protocol of the
Internet layer is:
• Internet Protocol (IP)
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TCP/IP Protocol Suite
 Transmission Control Protocol/Internet Protocol
(TCP/IP) is a set of protocols or rules developed to
allow cooperating computers to share resources
across a network.
 TCP/IP can be configured using the operating
system tools
TCP/IP description and configuration
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TCP/IP description and configuration
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Verify IP Configuration: Win 9x
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Verify IP Configuration: Win XP, NT, 2000
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• ipconfig
• ipconfig /all
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