> For the complete documentation index, see [llms.txt](https://johnoraw.gitbook.io/routing-theory/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://johnoraw.gitbook.io/routing-theory/introduction.md).

# Introduction

This collection of notes has its origin in undergraduate teaching from 2011, and was heavily augmented for post-graduate teaching in 2015. 

This version is intended to introduce a post-graduate student to networking practices, in this case specifically relating to routing and layer 3. I intend to provide the student with a solid grounding in requirements and practices from a theoretical perspective.

It is expected that you have already understood my notes on 

* LAN Networking Practice
* Ethernet Practice

In these documents, there are several key terms. These will be *italicized*. You may need to look up these terms to get a full understanding of them. 

Commands are generally shown in **bold**. 

Where I use powers, I show then using the caret symbol, e.g. 2^4 = 16.

### Copyright <a href="#copyright" id="copyright"></a>

The content of these notes are (c) John ORaw 2024.

I have tried to acknowledge and cite sources, if you think I have missed crediting someone else's work, please contact me at <john.oraw@atu.ie>

If you find errors in my notes or something has been superseded without me noticing, please let me know.