Rating: 
Summary: Absolutely MUST buy!!
Review: If I could give this book 10 stars I would. I was amazed to find that any author could make a subject as complex as routing so accessible and logical to follow. Jeff Doyle has a unique gift of explaining routing concepts in an easily digestible way. I cannot think of a better book on IGP routing. The layout of the book is also very easy on the eye. In short my advice is BUY this book and study it. Your money will be extremely well spent!
Rating:
Summary: The best book about TCP/IP routing (w/o BGP)
Review: It's simply the best book about TCP/IP routing protocols. I was surprised how many new things I discovered after reading this book. It sounds like a cheap TV commercial :) but in this case it's true. Basically, this book and Halabi's one about BGP - that's all you need to study TCP/IP routing on the CCIE level.
Rating:
Summary: Absolutely MUST buy!!
Review: Jeff Doyle has a wonderfully readable writing style. He presents his concepts logically and builds through the book. The layout of the text and diagrams make the book easy to read. Definitely worth the price.
Rating:
Summary: This book ROCKS!
Review: Jeff Doyle has a wonderfully readable writing style. He presents his concepts logically and builds through the book. The layout of the text and diagrams make the book easy to read. Definitely worth the price.
Rating: 
Summary: A good book, if not a little wordy
Review: Most of this book was considerably helpful. However, I found Doyle's lengthy description of OSPF (170 pages, most of it raw information) too detailed . If I had wanted to read the RFC for OSPF, I would have done so. If he could have separated the basic essentials of OSPF operation from the monotanous details of the protocol, I would have enjoyed the book much more. Instead, the basics of OSPF operation are mixed in with and muddled by ALL of the intricate details of the protocol. (I think he makes this mistake with all of the routing protocols, but the other routing protocols he describes are not nearly as complex as OSPF.) All of that aside, this book still remains one of my favorite and most recommended resources. It should be a member of every IT personel's book collection.
Rating:
Summary: Excellent Book. Highly recommended. Just want to add my 2 ct
Review: The Reviews says it all. Great coverage on IGPs. The bible of IGPs. His next book is comming out on April 15, 2001. It will focus mainly on BGP. Can't wait to get it too.Happy Reading.
Rating:
Summary: Efficient Writing & Superb Knowledge - A Must-Have
Review: This book is a must for all the people who want to understand routing protocols. It is a must for CCIE candidates. CCIE candidates must have the ability to understand the behaviors of various protocols. The exam is not a test of commands but the test of your knowledge and your abilities to create and work in any kind of environment. This book takes you from the very basics to the in-depth study of each protocol. This helps you to understand and troubleshoot various problems. Even after your exams this book is a good reference to keep in your stash of guides. I would recommend this book to anyone who is working towards their goal of becoming a CCIE.
Rating:
Summary: Absolutely outstanding!
Review: This book is an exceptional reference for preparing for CCIE and for knowing Cisco IGP implementation, although, I assume many hands-on practice labs and work experience are also required in addition to it. It made my life easier, thinking that CCIE and expertise in IGPs are attainable. All chapters are great, especially OSPF, but I think redistribution and filtering wouldn't hurt to have more examples. I would suggest a second edition in order to cover features and commands added by Cisco, since the first one came out, increase its difficulty and add few more case studies and troubleshooting scenarios to complete it. This book is so great for the theoretical explanation of IGPs and not for their practical application. It would've been another 1000 pages to accomplish that. Actually, I think CiscoPress and Jeff should publish a book only with IGPs case studies, troubleshooting (real-world, basic, moderate and very difficult cases) and technical tips given the complexity of this information. Anyway, look no further! This is the world's number one book about Cisco interior routing protocols.
Rating:
Summary: Detailed, easy to understand, strongly conceptual
Review: This book is excellent, not only for those who are pursuing a CCIE certificate, but for everybody who works/wants to work with routing and really wants to understand what's happening behind the IOS commands. This book is strongly conceptual without being boring -- even non Cisco users will understand and love the book. At the same time, it's very practical (with lots of cases and troubleshooting sessions) without being shallow, as we usually find in other certification books. Doyle made things like OSPF almost easy. Without a doubt, one of the best Cisco books I ever read.
Rating:
Summary: a MUST read!
Review: This book is the best! Read it, do all the exercises, then re-read it again... I absolutely GUARANTEE you'll have an incredible *real-world* grasp of routing protocols after going through this text. Mr. Doyle is no doubt one of the finest authors of technical literature to date. His common sense approach to explaining difficult concepts is hardly matched by anything I've read thus far. I can hardly wait for volume II to come out in April! I've recommended this book to everyone I know in the tech. field, and now I'll broaden that recommendation to YOU! Get it, read it, know it! :-)
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