ITEC 3210 Lecture Notes - Lecture 1: Network Interface Controller, Structured Analysis, Media Access Control
8 Mar 2020
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Document Summary
Internet, intranet and extranet: component and layer view (based on network models) Structured design aka bbn architecture: block 1, access layer that connects computers and printers to form a. Lan: block 2, distribution layer bbn that interconnects. Lans or access layers: block 3, core layer bbn that interconnects different. Bbns: used only in networks across 2+ adjacent buildings, the users in each layer can"t access each others bc not connected by a lan. Some rules are handled by hardware (physical layer) Multi-layer view of networks: models that reduce complexity of data communication btwn computers, network models adopt a modular approach (decomposing in a way that won"t affect others. Application transport network data link physical. Network challenges (6: methodologies, defining users" needs and deciding on components to meet the requirements for the to-be network, meeting the technical goals, security and manageability, validated compatibility btwn equipment from diff vendors.
