Rating: 
Summary: Good book but challenge questions not realistic enough
Review: Todd Lammle's BSCI book was probably the first one to cover Cisco's new BSCI 640-901 exam with the inclusion of a chapter in ISIS. However be warned, the chapter on ISIS in Lammle's book does not cover a lot of areas that Cisco could bring up in the exam. Cisco published an addendum to the BSCN book by Catherine Pacquet on their web site a while back. You would be well advised to study that ISIS chapter. (It is 104 pages long!). You will find for instance that there is more to the ISIS backbone area than you read about in Lammle's book. Also the challenge questions in Lammle's book are likely to lull you into a false sense of security. The Boson tests will prepare you better for the BSCI exam. Having said that, I like Lammle's clear presentation of topics, especially the way he presents typed in commands and device outputs. I find these are much clearer than the equivalents in the Cisco Press BSCN and BSCI books. You may want to browse this book before making the final decision to buy.
Rating: 
Summary: Man, am I glad I bought this book!
Review: With Cisco changing the CCNP requirements from the Routing exam to this exam, this book is just what I needed! Thank you Cisco for doing this and then having this book avialable to study for the exam. Whew!The new BSCI exam is basically the same as the old routing exam except they have IS-IS on the exam. This book has everything you need to pass the new BSCI exam and fill your CCNP requirements.
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