What This Document Is
This document contains foundational class materials for ELENG 122: Introduction to Communication Networks at UC Berkeley. It’s designed to establish a core understanding of networking principles and the architecture of modern networks, with a particular emphasis on the internet. The material serves as a starting point for a deeper exploration of the subject throughout the course. It outlines the course structure, goals, and key concepts that will be built upon in lectures, recitations, and labs.
Why This Document Matters
This resource is invaluable for students beginning their study of communication networks. It’s particularly helpful for those who are new to the field or seeking a solid foundation before diving into more complex topics. Reviewing this material early in the course will help you contextualize lectures, approach assignments with confidence, and grasp the fundamental principles that underpin network design and operation. It’s best used at the start of the semester and revisited as needed throughout the course to reinforce core concepts.
Topics Covered
* Fundamental networking concepts and terminology
* The structure and evolution of the internet
* Network components and their roles
* Networking protocols and their functions
* Different network architectures and switching methods
* The relationship between applications, protocols, and components
* The division between network edge and core functionalities
* Basic network performance considerations
What This Document Provides
* An overview of the course structure, including homework expectations and available resources.
* A conceptual introduction to the core principles of networking.
* A high-level exploration of how networks are built and scaled.
* A framework for understanding the key elements that make up a communication network.
* A foundational understanding of both circuit and packet switching methodologies.
* An initial look at the client/server model and broadcast systems.
