Hi, If you can lay your hands on a copy of *Cisco Network Security Troubleshooting Handbook * By Mynul Hoda from Cisco Press Print ISBN-10: *1-58705-189-3* Print ISBN-13: *978-1-58705-189-0*
Personally I found what I learned by reading this book helped me a lot in refining my troubleshooting techniques, Specially love the way it presents troubleshooting as Problem Area, Case studies, Best practices. - R Shenai
_______________________________________________ For more information regarding industry leading CCIE Lab training, please visit www.ipexpert.com
