Routing TCP/IP, Vol 1 - 2nd Edition



I have used the first edition of Jeff Doyle's Routing TCP/IP volumes 1 and 2 for some time now. I consider them essential to studying for the CCIE lab exam. They also act as an ongoing reference for any networking professional. I was anxious to review the second edition and have not been disappointed.



I was impressed that this second edition appears to be a well thought out re-presentation of the material. By that I mean it is not just the first edition with some bolt-on additions but rather a fresh covering of the material with the updates that inundate our industry woven in as opposed to added on to the existing text.



I find rare cases to employ RIP in my current work but as an old dog, I tend to monitor its evolution. The book does one of the best jobs of conveying RIPng and its exclusive use with IPv6 that I have seen. An important note that other writers seem to overlook is the reliance of RIPng on IPv6 authentication mechanisms. Coverage of EIGRP's approach to IPv6 was lacking but I am told this was due to press dates vs. standards publishing or some such. Separate research for this technology would be required for those that need it.



In typical Doyle fashion, information is presented in a very matter of fact way, diagrams are clear and correctly annotated. Command output is easy to follow and well trimmed of content that does not apply directly to the point being illustrated. I have chastised other Cisco Press books for failure to hit this level of clarity and correctness. It is a peeve of mine to have to flip back and forth several pages (or even chapters) to reference a diagram or a table that is being discussed in the current chapter.



Overall: As expected I was quite pleased with the book and will recommend it to anyone pursuing their CCIE certification. I will also recommend this book (as I have the first edition) to anyone involved in higher level network design and administration. I heartily give the book five stars as I believe most reviewers will.

Routing TCP/IP, Vol 1 - 2nd Edition

I have used the first edition of Jeff Doyle's Routing TCP/IP volumes 1 and 2 for some time now. I consider them essential to studying for the CCIE lab exam. They also act as an ongoing reference for any networking professional. I was anxious to review the second edition and have not been disappointed.

I was impressed that this second edition appears to be a well thought out re-presentation of the material. By that I mean it is not just the first edition with some bolt-on additions but rather a fresh covering of the material with the updates that inundate our industry woven in as opposed to added on to the existing text.

I find rare cases to employ RIP in my current work but as an old dog, I tend to monitor its evolution. The book does one of the best jobs of conveying RIPng and its exclusive use with IPv6 that I have seen. An important note that other writers seem to overlook is the reliance of RIPng on IPv6 authentication mechanisms. Coverage of EIGRP's approach to IPv6 was lacking but I am told this was due to press dates vs. standards publishing or some such. Separate research for this technology would be required for those that need it.

In typical Doyle fashion, information is presented in a very matter of fact way, diagrams are clear and correctly annotated. Command output is easy to follow and well trimmed of content that does not apply directly to the point being illustrated. I have chastised other Cisco Press books for failure to hit this level of clarity and correctness. It is a peeve of mine to have to flip back and forth several pages (or even chapters) to reference a diagram or a table that is being discussed in the current chapter.

Overall: As expected I was quite pleased with the book and will recommend it to anyone pursuing their CCIE certification. I will also recommend this book (as I have the first edition) to anyone involved in higher level network design and administration. I heartily give the book five stars as I believe most reviewers will.

Routing TCP/IP, Vol 1 - 2nd Edition

I have used the first edition of Jeff Doyle's Routing TCP/IP volumes 1 and 2 for some time now. I consider them essential to studying for the CCIE lab exam. They also act as an ongoing reference for any networking professional. I was anxious to review the second edition and have not been disappointed.

I was impressed that this second edition appears to be a well thought out re-presentation of the material. By that I mean it is not just the first edition with some bolt-on additions but rather a fresh covering of the material with the updates that inundate our industry woven in as opposed to added on to the existing text.

I find rare cases to employ RIP in my current work but as an old dog, I tend to monitor its evolution. The book does one of the best jobs of conveying RIPng and its exclusive use with IPv6 that I have seen. An important note that other writers seem to overlook is the reliance of RIPng on IPv6 authentication mechanisms. Coverage of EIGRP's approach to IPv6 was lacking but I am told this was due to press dates vs. standards publishing or some such. Separate research for this technology would be required for those that need it.

In typical Doyle fashion, information is presented in a very matter of fact way, diagrams are clear and correctly annotated. Command output is easy to follow and well trimmed of content that does not apply directly to the point being illustrated. I have chastised other Cisco Press books for failure to hit this level of clarity and correctness. It is a peeve of mine to have to flip back and forth several pages (or even chapters) to reference a diagram or a table that is being discussed in the current chapter.

Overall: As expected I was quite pleased with the book and will recommend it to anyone pursuing their CCIE certification. I will also recommend this book (as I have the first edition) to anyone involved in higher level network design and administration. I heartily give the book five stars as I believe most reviewers will.

OSPF and IS-IS : Choosing an IGP for Large-Scale Networks is an excellent source for understanding the similarities and differences of IS-IS and OSPF all in one book. It is the only book available with such complete coverage comparing these two IGP routing protocols.

The common problem of choosing one IGP routing protocol over the other or the second guessing of an IGP deployment choice can now be put to rest thanks to this definitive source of information on the subject. The book does a fair and deep comparison of the two protocols down to the packet structures and usage scenarios. It answers lingering questions and corrects common misconceptions about how these protocols operate. The author shows no bias towards either protocol without good justification. Jeff presents the information in such a way that the reader can draw his/her own conclusions.

Doyle's book does not assume the reader has strong knowledge of OSPF and IS-IS. It teaches the theory of each protocol in addition to comparing and contrasting in Doyle's easy to follow style. For those who are experts at IS-IS and OSPF with regards to IPv4 and understand the differences, IS-IS and OSPF for IPv6 are covered/compared in the same fashion.

Thanks for a great reference book, Jeff!

Jeff Doyle's 2nd edition of his best-selling book - "Routing TCI/IP Volume 1" is a welcome revision to the cannon required for any CCIE Routing & Switching candidate. Jeff Doyle, along with Jennifer Carroll, has done an excellent job at updating what is considered by many to be THE book on routing. In particular, the new edition does a terrific job at describing the white-elephant in the room - IPv6, IPv6's packet format and how to configure some routing protocols to advertise IPv6 prefixes.

The primary focus of this book discusses the most popular routing protocols - RIPv1 & RIPv2, EIGRP, OSPFv2 and, particular to IPv6, RIPng and OSPFv3. Dedicating over 450 pages to these topics alone makes the book worth itself. A further 130 pages are used to discuss route control (redistribution, filtering and route-maps).

In particular, I was impressed by:
* The book is fully-updated, and is not just a copy-and-paste of subject matter from the first book. For instance, on page 439 is discussed the use of a much misunderstood newer command `area nssa translate type7 suppress-fa'. This is just an example of complex and new commands that are documented.
* Of all the books I have looked at, this book does the best job at introducing oneself to RIPng.
* The book wastes little time discussing site-local addresses for IPv6. As the difficulties of using of IPv6's site-local addresses has rendered ths address as too complex to implement (and was, in fact, deprecated in RFC 3879), this books notes this and moves on. This goes against other recent books that that wastes pages and time discussing IPv6 site-local addresses. As any CCIE candidate will attest, studying time comes at a premium.

There are few cons worth mentioning:
* The book repeatedly incorrectly documents IPv6's link-local addresses as FF80::/10. Link-local addresses start as FE80::/10.
*IS-IS is discussed (which is no longer on the CCIE R&S lab). The book went to press too late to discuss EIGRP for IPv6 and is sorely missed.
*The book does bypass some interesting subtleties that you know Doyle is aware of but are, for the most part, undocumented. For instance, the differences between EIGRP and RIP when using the neighbor command.

The path to the CCIE R&S can be a long (and costly) road. While this book is focused towards candidates for CCIE Routing & Switching Lab, I believe this book would be a welcome addition to any Networkers' bookshelf.

I give this book 5 pings out of 5:
!!!!!

Jeff Doyle's 2nd edition of his best-selling book - "Routing TCI/IP Volume 1" is a welcome revision to the cannon required for any CCIE Routing & Switching candidate. Jeff Doyle, along with Jennifer Carroll, has done an excellent job at updating what is considered by many to be THE book on routing. In particular, the new edition does a terrific job at describing the white-elephant in the room - IPv6, IPv6's packet format and how to configure some routing protocols to advertise IPv6 prefixes.

The primary focus of this book discusses the most popular routing protocols - RIPv1 & RIPv2, EIGRP, OSPFv2 and, particular to IPv6, RIPng and OSPFv3. Dedicating over 450 pages to these topics alone makes the book worth itself. A further 130 pages are used to discuss route control (redistribution, filtering and route-maps).

In particular, I was impressed by:
* The book is fully-updated, and is not just a copy-and-paste of subject matter from the first book. For instance, on page 439 is discussed the use of a much misunderstood newer command `area nssa translate type7 suppress-fa'. This is just an example of complex and new commands that are documented.
* Of all the books I have looked at, this book does the best job at introducing oneself to RIPng.
* The book wastes little time discussing site-local addresses for IPv6. As the difficulties of using of IPv6's site-local addresses has rendered ths address as too complex to implement (and was, in fact, deprecated in RFC 3879), this books notes this and moves on. This goes against other recent books that that wastes pages and time discussing IPv6 site-local addresses. As any CCIE candidate will attest, studying time comes at a premium.

There are few cons worth mentioning:
* The book repeatedly incorrectly documents IPv6's link-local addresses as FF80::/10. Link-local addresses start as FE80::/10.
*IS-IS is discussed (which is no longer on the CCIE R&S lab). The book went to press too late to discuss EIGRP for IPv6 and is sorely missed.
*The book does bypass some interesting subtleties that you know Doyle is aware of but are, for the most part, undocumented. For instance, the differences between EIGRP and RIP when using the neighbor command.

The path to the CCIE R&S can be a long (and costly) road. While this book is focused towards candidates for CCIE Routing & Switching Lab, I believe this book would be a welcome addition to any Networkers' bookshelf.

I give this book 5 pings out of 5:
!!!!!

I read the original edition of Jeff Doyle's "Routing TCP/IP, Volume I" (ISBN 1587052024) a few years back while studying from my CCIE. The first edition was a "must read" for any CCIE candidate. I am happy to say that the second edition improves upon and updates this essential classic in Cisco and network architecture.

Let's face it, internetworking has evolved tremendously since the original edition was published in 1998. The CCIE lab has also changed enormously since the first edition. For example, gone is IGRP, IPv6 is on the horizon. "Routing TCP/IP, Volume I, Second Edition" reflects these changes.

For new Doyle readers, the book covers the essential Interior Routing Protocols (IGP) for IP version 4 and IPv6, including static routing, RIP (version 1 and 2), EIRGP, OSPF, and IS-IS. The chapter on IGRP from the first edition is dropped, and instead is briefly discussed from a historical perspective in the EIGRP chapter. The second half of the books discussed the intricacies of routing protocol redistribution and introduces the reader to the concepts and uses of distribution lists and route-maps. Readers interested in BGP and Multicast should look to Doyle and Carroll's Routing TCP/IP, Volume II (ISBN 1578700892).

I especially loved the IPv6 content incorporated throughout the book. Prior to reading this new edition, my knowledge and understanding of IPv6 was at an elementary level. I found Doyle's explanation of routing IPv6 and examples to be concise, practical, and very helpful. I was easily able to walk through most of the configuration exercises on my home lab. Guess what, routing IPv6 isn't much different than routing IP version 4.

Who would have guessed that you could improve upon a classic? If you are a season veteran, the updated version is well worth the purchase price. For the aspiring CCIE, the book is an absolute "must have".

Mark G. Reyero
CCIE 12932

Doyle's first edition of Routing TCP/IP, Volume 1 became the gold standard of TCP/IP routing preparation for prospective CCIE candidates. With the new content of the CCIE lab, the expectation was very high that this book would also become part of a CCIE candidate's "required reading" list. It went on mine.

The things I like about this book:

While much of the content of this book was first published in the first edition, there were nevertheless many enhancements spread throughout, reflecting on newer IOS versions, newer features, etc. Much changed during the seven year stretch between the two so the second edition was refreshed to reflect that, even though much of the core content stayed the same.

Notably, the major additions to this book center on IPv6 and related technologies, such as RIPng and OSPFv3. Doyle has historically shown strong ability to break down technically difficult material and present it in such a way as to appeal to both novice and expert alike. This book did not disappoint as it provided a basic but detailed discussion of IPv6. From addressing to integrated services, the reader will have a firm grasp of IPv6 from a Cisco IOS perspective. The reader will also find numerous references to IPv6 configuration and functionality differences where applicable throughout the other chapters of this book.

The first edition of this book was fairly clean as editorial errors are concerned and this edition follows in its footsteps. Certainly there are some minor mistakes here and there but I was not able to identify any that were notable.

The things I do not like about this book:

This book lived up to my expectations and there was nothing that disappointed me.

Doyle's first edition of Routing TCP/IP, Volume 1 became the gold standard of TCP/IP routing preparation for prospective CCIE candidates. With the new content of the CCIE lab, the expectation was very high that this book would also become part of a CCIE candidate's "required reading" list. It went on mine.

The things I like about this book:

While much of the content of this book was first published in the first edition, there were nevertheless many enhancements spread throughout, reflecting on newer IOS versions, newer features, etc. Much changed during the seven year stretch between the two so the second edition was refreshed to reflect that, even though much of the core content stayed the same.

Notably, the major additions to this book center on IPv6 and related technologies, such as RIPng and OSPFv3. Doyle has historically shown strong ability to break down technically difficult material and present it in such a way as to appeal to both novice and expert alike. This book did not disappoint as it provided a basic but detailed discussion of IPv6. From addressing to integrated services, the reader will have a firm grasp of IPv6 from a Cisco IOS perspective. The reader will also find numerous references to IPv6 configuration and functionality differences where applicable throughout the other chapters of this book.

The first edition of this book was fairly clean as editorial errors are concerned and this edition follows in its footsteps. Certainly there are some minor mistakes here and there but I was not able to identify any that were notable.

The things I do not like about this book:

This book lived up to my expectations and there was nothing that disappointed me.

Well ideally any CCIE (R&S) preparation has to start with this book as in my case. Though a IE level book the book is very clear,precise and easy to comprehend. I really liked the language which is very easy to understand so anybody with basic knowledge should be able to read this book.
Lot of examples is another great feature of this book. Each concept is followed by topology with lot of configuration illustartion showing routing tables and OSPF database. The best part of this book is the coverage of OSPF v2 which is in great detail showing all the formats of LSA and other packet types. The new topics included are IPv6 ,RIPng and OSPF v3.

Well ideally any CCIE (R&S) preparation has to start with this book as in my case. Though a IE level book the book is very clear,precise and easy to comprehend. I really liked the language which is very easy to understand so anybody with basic knowledge should be able to read this book.
Lot of examples is another great feature of this book. Each concept is followed by topology with lot of configuration illustartion showing routing tables and OSPF database. The best part of this book is the coverage of OSPF v2 which is in great detail showing all the formats of LSA and other packet types. The new topics included are IPv6 ,RIPng and OSPF v3.

After hearing about how valuable and informative the first edition of Routing TCP/IP was I knew I had to give the new and improved Routing TCP/IP Vol 1, Second Edition a go. After passing my CCNA test a few months ago, the natural route is to pursue the CCNP certification. Even though this book is labeled "CCIE Professional Development", it is also an in-depth resource for your CCNP routing studies.

Routing TCP/IP Vol 1 starts off with a few chapters of Routing basics. You get a good review of the TCP/IP protocol suite, an IPv6 Overview, and a review of Static and Dynamic Routing. The Chapter on IPv6 is quite in-depth. IPv6 addressing, Header format, ICMPv6 and Neighbor Discovery Protocol are among the topics in this chapter. After the first review section you enter the heart of the book. Part II, Interior Routing Protocols. RIP, RIPv2, classless routing, OSPF, EIGRP, and Integrated IS-IS are the chapters you will be diving into. Each chapter explains proper Operation, Configuration and Troubleshooting of its respective protocol. Anything and everything you will ever want to know about the aforementioned Interior routing protocols are within these pages. The last part of Routing TCP/IP Vol 1is the Route Control and Interoperability section. This section of the book goes over Route Redistribution, ODR (On-demand Routing), Route Filtering and Route maps.

Just like most Cisco Press books, the figures are easy to follow along with and are clear. The command output examples are easy to understand and follow. The examples in the book make it easy to see how to apply all the information. I'm a visual person, and to see all the technology applied and the output shown helps a lot. Routing TCP/IP Vol 1 Second Edition will be beneficial for a person holding a CCNP certification looking to move on to the CCIE Routing & Switching Certification. In my opinion, it will also benefit a CCNA studying for the CCNP certification. More importantly the Building Scalable Cisco Internetworks (BSCI) 642-801 test. The Interior Routing chapters on OSPF, EIGRP and Integrated IS-IS will help you understand more then enough to pass the BSCI test, along with the BSCI Self-Study and Exam Cert guide. Routing TCP/IP Vol 1will make a excellent addition to a Cisco engineer's home Cisco Press library, not to mention a perfect book reference to have at the work place. Jeff Doyle and Jennifer Carrol's writing style's are excellent. They make understanding and consuming all this information painless. It might not be painless for everyone, but if you are a information hog like myself, then it will be rather painless. I would buy another Cisco Press title written by Jeff Doyle and/or Jennifer Carrol in a heartbeat. On a Scale of 1 to 5, 5 being the highest. I would give Routing TCP/IP Vol 1 Second edition a 5 without a doubt. The information is in-depth, easy to understand and relatively painless to retain. Yeah, you might have to read it twice, but isn't it that way with all technology books like this? Especially books on Cisco Technology.

I recommend this book to anyone studying for the BSCI CCNP test, a CCNP looking to move on to the CCIE Routing & Switching written test, or a Network Engineer looking to know the ins and outs of Interior Routing Protocols. Routing TCP/IP Vol1 will make a perfect work reference or a home reference for your personal Cisco Press Library.

Off to purchase Routing TCP/IP Vol 2 for Exterior Routing Protocols. If it is anything close to this Routing TCP/IP Vol 1 Second Edition, then I will be a very happy camper.

After hearing about how valuable and informative the first edition of Routing TCP/IP was I knew I had to give the new and improved Routing TCP/IP Vol 1, Second Edition a go. After passing my CCNA test a few months ago, the natural route is to pursue the CCNP certification. Even though this book is labeled "CCIE Professional Development", it is also an in-depth resource for your CCNP routing studies.

Routing TCP/IP Vol 1 starts off with a few chapters of Routing basics. You get a good review of the TCP/IP protocol suite, an IPv6 Overview, and a review of Static and Dynamic Routing. The Chapter on IPv6 is quite in-depth. IPv6 addressing, Header format, ICMPv6 and Neighbor Discovery Protocol are among the topics in this chapter. After the first review section you enter the heart of the book. Part II, Interior Routing Protocols. RIP, RIPv2, classless routing, OSPF, EIGRP, and Integrated IS-IS are the chapters you will be diving into. Each chapter explains proper Operation, Configuration and Troubleshooting of its respective protocol. Anything and everything you will ever want to know about the aforementioned Interior routing protocols are within these pages. The last part of Routing TCP/IP Vol 1is the Route Control and Interoperability section. This section of the book goes over Route Redistribution, ODR (On-demand Routing), Route Filtering and Route maps.

Just like most Cisco Press books, the figures are easy to follow along with and are clear. The command output examples are easy to understand and follow. The examples in the book make it easy to see how to apply all the information. I'm a visual person, and to see all the technology applied and the output shown helps a lot. Routing TCP/IP Vol 1 Second Edition will be beneficial for a person holding a CCNP certification looking to move on to the CCIE Routing & Switching Certification. In my opinion, it will also benefit a CCNA studying for the CCNP certification. More importantly the Building Scalable Cisco Internetworks (BSCI) 642-801 test. The Interior Routing chapters on OSPF, EIGRP and Integrated IS-IS will help you understand more then enough to pass the BSCI test, along with the BSCI Self-Study and Exam Cert guide. Routing TCP/IP Vol 1will make a excellent addition to a Cisco engineer's home Cisco Press library, not to mention a perfect book reference to have at the work place. Jeff Doyle and Jennifer Carrol's writing style's are excellent. They make understanding and consuming all this information painless. It might not be painless for everyone, but if you are a information hog like myself, then it will be rather painless. I would buy another Cisco Press title written by Jeff Doyle and/or Jennifer Carrol in a heartbeat. On a Scale of 1 to 5, 5 being the highest. I would give Routing TCP/IP Vol 1 Second edition a 5 without a doubt. The information is in-depth, easy to understand and relatively painless to retain. Yeah, you might have to read it twice, but isn't it that way with all technology books like this? Especially books on Cisco Technology.

I recommend this book to anyone studying for the BSCI CCNP test, a CCNP looking to move on to the CCIE Routing & Switching written test, or a Network Engineer looking to know the ins and outs of Interior Routing Protocols. Routing TCP/IP Vol1 will make a perfect work reference or a home reference for your personal Cisco Press Library.

Off to purchase Routing TCP/IP Vol 2 for Exterior Routing Protocols. If it is anything close to this Routing TCP/IP Vol 1 Second Edition, then I will be a very happy camper.

Routing TCP/IP Volume I, Second Edition is the best single book on interior routing protocols I have ever read. Not for an absolute beginner, nor for someone who just wants to know about routing; this 900 page tome is for the intermediate to advanced technician who configures routers for a living. The volume is on the CCIE official reading list and the first edition has been mentioned by many other authors as "the" definitive work for this subject.

The theory of why and how interior routing protocols work is covered thoroughly, yet at a pace that progresses the reader to a thorough understanding. Doyle and Carrroll's teaching deserves a slow methodical reading of their rich treatment of RIP, EIGRP, OSPF, and ISIS in both IP version 4 and 6. The latest RFCs on IPV6 are referred to and one entire chapter is dedicated to the future transport language of the Internet.

The intro chapters are pure theory; covering Link State or Distance Vector protocols in an almost scientific manner. From Chapter 5 on there is a nice pattern of explaining the particulars of one protocol at a time with a unique emphasis on "why" it works that way. There are case studies, command lists, configuration practice and trouble shooting exercises. After fourteen information packed chapters, there are still six appendices; including tutorials and solutions to the chapter questions and case studies.

I rank Routing TCP/IP Volume I, Second Edition as a five star book. It is worth several books because of its size and depth. The only thing that might be better would be to have each of the authors of the RFCs write explanatory notes in a readable format and compile them into one volume.

Jeff Doyle has done it again. Routing TCP/IP Volume I second edition has reaffirmed Jeff and Jennifer's excellent pedagogical prowess, with the TCP/IP routing framework. When I read routing TCP/IP volumes I and II several years ago, the excellent presentation of the various routing protocols in a clear case study driven manner helped me develop a firm understanding of the various interior and exterior routing protocols available for TCP/IP. TCP/IP Volume I second edition is a more concise edition of the first edition with several new chapters on IP version 6 specific protocols.

Unlike the 14 chapter, 1026 pages long first edition, the second edition is organized into 14 chapters also but is 910 pages long and comes with a 45 day free online access at safari book online. That's a great deal. The organization of this edition is similar to the first; Part I deals with basic concepts, Part II with interior routing protocols and part three discusses routing controls and interoperability. Part IV is a collection of appendices and solutions to problems discussed throughout the text.

Part one now includes an expanded review of IP version 6 in a chapter by itself. This is arguably one of the better treatments of the subject I have seen in a text and provides a concise introduction to IP version 6 protocol headers, control protocols and addressing.

Part two includes an expanded treatment of RIP version 2 as well as the new RIPng which is an RIP implementation for IP v6. The now deprecated IGRP has been dropped and a totally new chapter on OSPF version 3 explains the updated OSPF for IP v6.

Part three, like one and two also includes updated and new case studies to reflect current and future trends. A new case study on IP version 6 redistribution with route maps shows a simple example of route redistribution from RIPng to IS-IS for IP v6 networks.

Like previous Doyle's work, this book is heavily invested in sample configurations using Cisco IOS, but the clear treatment of technology theories and directions make this book a great reference for all internetworking engineers out there.

The clear and detailed presentation of the materials make this book accessible to networking professionals of all grade, newbie to experts alike. And as organizations prep themselves for the inevitable migration to IP v6 , Jeff Doyle's book is definitely an additional resource for the engineers whose job it will be to provision the change.

Definitely not the be all book on TCP/IP , the book will likely become a key ingredient in the arsenal of network managers, administrators and even researches and an excellent guide to Cisco network professionals and students. If anything, I will recommend this volume, and highly so, to aspiring Cisco Certification candidates and anyone who already owns or have read the first edition. This edition is indeed an upgrade.

The second edition of the book was a long felt need as there have been a lot of changes in the CCIE certification blueprint as well the Cisco IOS.
This is the most highly recommended book for anyone attempting to study for any of the CCIE certifications as Routing and Switching are covered in varying degrees in all the CCIE written Exams.
The detailed coverage of IPV6 is a highpoint of this book as it is very well explained with the help of various examples and also by comparing and contrasting it with IPV4 so as to bring out the true subtleness of and the glaring differences between the two. By showing how each task is done differently with IPV6 makes the difficult and confusing address scheme which is in hex much more understandable. Through out the book where ever applicable the authors use IPV6 addresses during various configuration examples to clarify the concepts.
The principles of route redistribution are explained with the help of case studies and sample output which make this usually difficult to understand and confusing topic much more bearable. Redistribution remains the cause of most problems in the lab and once routes are redistributed a variety of problems crop up. Jeff explains the right way to do this and most importantly what not to do.
The troubleshooting case study at the end of the chapter explains the method to troubleshoot that particular protocol and provides tips on what to basically look for.
Then the troubleshooting exercises provide the opportunity to test the troubleshooting knowledge.
This knowledge comes in handy for the CCIE LAB as time is always short and if something breaks down troubleshooting skills can make the difference between getting your magical Number or a visit to the LAB again.
By totally revising and revamping the contents of the book the authors and reviewers have made sure that this book remains a must buy for all seasoned network engineers and students of Cisco Certifications.
The author Jeff Doyle is a professional services engineer and IPv6 solutions manager. The coauthor Jennifer Carroll is an independent network consultant in Redmond, WA.
I give this book 4 stars on a scale of 5, 5 being the highest. I strongly recommend this book.
Niloufer Tamboly, CISSP

This book is part of, even a major part of the core material needed to be understood as part of CCIE preparation. The first edition of this book, now seven years old, quickly became a standard book on the subject. It proved useful not only for test preparation, but for the knowledge it gave to the working professional.

In this industry a lot changes in seven years. The new IPv6 has come out and is extensively discussed. The Cisco routing hardware has certainly changed, from both a hardware and a software standpoint. Finally the network has changed. It wasn't nearly as unfriendly a place seven years ago.

Although this book includes a lot of test preparation material, it is recommended for anyone wanting a detailed and comprehensive understanding of how routing in TCP/IP networks really works.

This book is destined to become one of the standards of the business. It should be on the shelf of anyone working in this area. It will be one of the books pulled down off the shelf frequently.