Unformatted text preview: vice has filtering and forwarding capabilities. Nodes a computer or a router address on a network. Client work station (ie. your home computer) Server A program that provides clients with services. Wired Communication via the Public Telephone Network Public Telephone Network is a circuit
switching network. Data and voice can be transferred using this network. Twisted-pair wire and fiber-optic cables provide end-to-end connections. Subscriber loop carriers (SLCs) connect home and business telephones. The area serviced by SLCs is called the local loop. Network Service Levels Availability uptime vs. downtime measures success of network Reliability data is able pass through the network with little errors Response Time importance depends on user Throughput "net bandwidth of a network" Network Management Approaches Nonautomated Network management Semiautomated Network Management Integrated Network Management Network Management Protocols Diagnostic methods Standards Organizations International Organization for
Standardization (ISO) International Telecommunication Union Telecommunication Standards Sector (ITU-T) American National Standards Institute (ANSI) Institute of Electrical and Electronics Engineers (IEEE) Discussion Questions Week one March 10 March 16 Briefly describe the
history of the Internet. Tell us about its structure. In data communications, why is it important to have protocols and standards? Week two March 24 March 30 There are two main categories of data communication networks, LAN's and WANs. Each network has different characteristics and functionalities. What are they (a short explanation is fine)? How is a circuit switching network different from a packet switching network?...
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- Spring '08
- Computer Networks, packet switching networks