This book is very well written, I hardly noticed how many pages this truly was. It is full of great examples, and the review questions are all excellent and the answers were thorough. Liked the configuration and troubleshooting exercises were excellent. Particularly good were different approaches to the same problem, so we got to see some different ways of achieving the desired result. The discussion of multicast was quite good. I highly recommend this book.
Another the best book of Jeff Doyle. Not so useful for ones themes for me, but very useful for another themes. I think you everyone will find something interesting.
I've managed to find main concepts of all, reasons of creation another protocols etc etc.