Communicating over the Network PDF
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This document provides an introduction to communicating over a network, including local area networks (LANs), wide area networks (WANs), and the internet. It also discusses layered models like TCP/IP and OSI, and how these models facilitate protocol design.
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Communicating over the Network Network Fundamentals – Chapter 2 Version 4.0 Network Types Local Area Networks (LANs) – A network serving a home, building or campus is considered a Local Area Network (LAN) Network Types Wide Area Networks (WANs)...
Communicating over the Network Network Fundamentals – Chapter 2 Version 4.0 Network Types Local Area Networks (LANs) – A network serving a home, building or campus is considered a Local Area Network (LAN) Network Types Wide Area Networks (WANs) – LANs separated by geographic distance are connected by a network known as a Wide Area Network (WAN) Rem. Une autre approche des réseaux LAN et WAN a été proposée au cours. Celle-ci se base sur les caractéristiques suivantes: – la propriété et l’indentification des personnes responsables de la gestion, – Les débits, – L’appareil représentatif (switch ou routeur). Network Types Internet – The internet is defined as a global mesh of interconnected networks Layers with TCP/IP and OSI Model Rem. Lors du cours, l’utilisation d’un modèle en couches a été justifiée à l’aide de 3 analogies: – Les stars de ciné (Brad Pitt, Angelina,…), – Je me rends à une pièce de théâtre, – J’envoie une lettre par la poste. Les rôles des différentes couches ont été très rapidement parcourus mais seront développés dans la suite du cours. Layers with TCP/IP and OSI Model Benefits of using a layered model Assists in protocol design Fosters competition Changes in one layer do not affect other layers Provides a common language Layers with TCP/IP and OSI Model protocol data units (PDU) and encapsulation
