On: A brief history of router architecture

[teleforce]

Please check this book "Computer Networking : A Top-Down Approach" By Kurose & Ross. It is the best textbook on computer networking, bar none. The latest edition also covers modern networking concepts, for example Software Defined Networks (SDN).

[1]https://www.amazon.com/Computer-Networking-Top-Down-Approach...

[stack_underflow → teleforce]

The Kurose/Ross textbook is also a favourite of mine.

Consider checking out https://book.systemsapproach.org/index.html as a free alternative as well.

The authors develop the book, as well as a few micro-books on topics like SDN, 5G, TCP congestion control, on github: https://github.com/SystemsApproach

They also have a blog with regular updates: https://www.systemsapproach.org/blog

And if you're curious about the motivation behind the project, they have a whitepaper: Open Source Networking Education: A Systems Approach - https://www.systemsapproach.org/uploads/4/7/7/4/47748257/sig...