ITM 301 Chapter Notes - Chapter 2: Data Link Layer, Icann, Network Layer

• School: Ryerson University
• Department: Information Technology Management
• Course: ITM 301
• Professor: Farid Shirazi

Document Summary

Ieee standards apply to communication protocols standard: documented agreement, specifications and criteria define minimum acceptable performance and ensure compatibility. Ansi standards apply to type of nic - requires rigorous testing. Eia & tia - helps write ansi standards, produces guidelines for installing network cables. Isoc - establishes technical internet standards - keeps internet accessible. Icann - responsible for ip addressing and domain name management. The osi model understands and develops network computer to computer communications - 1980. Physical, data link, network, transport, session, presentation, application. Application: facilitates communication between software apps. and lower-level services. Presentation: accepts application layer data, formats data, translates jpg, mp3. Session:coordinate and maintain comm between two network nodes, end session. Network: turn network address into physical address, route data, routers belong here. Data link: divide data into frame, includes payload, ip addresses, error checking. Data link: includes llc and mac , manages access to physical medium, ensure.