One more: Internet System Handbook by Daniel Lynch and Marshall Rose - https://archive.org/details/internetsystemha00erne/page/776/mode/2up https://archive.org

One more: Internet System Handbook by Daniel Lynch and Marshall Rose - https://archive.org/details/internetsystemha00erne/page/776/mode/2up https://archive.org/details/internetsystemha00erne/page/776/... This is a early 90's classic which describes the "complete" Internet as it existed at that time. The unique thing with this book is that it brings all the different components together thus giving you a overall picture. A lot of things have changed since then (mainly in application layer protocols) but much of the core protocols and infrastructure are still relevant. Reading this alongside more recent architectural books will give you better insight into the Internet and Networking in general.