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Cisco Express Forwarding Hardcover – May 4, 2007

ISBN-13: 978-1587052361 ISBN-10: 1587052369 Edition: 1st

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Product Details

  • Hardcover: 288 pages
  • Publisher: Cisco Press; 1 edition (May 4, 2007)
  • Language: English
  • ISBN-10: 1587052369
  • ISBN-13: 978-1587052361
  • Product Dimensions: 7.4 x 0.9 x 9.2 inches
  • Shipping Weight: 1.4 pounds
  • Average Customer Review: 4.0 out of 5 stars  See all reviews (2 customer reviews)
  • Amazon Best Sellers Rank: #1,957,629 in Books (See Top 100 in Books)

Editorial Reviews

About the Author

Nakia Stringfield, CCIE No. 13451, is a network consulting engineer for Advanced Services at Cisco in Research Triangle Park, North Carolina, supporting top financial customers with network design and applying best practices. She was formerly a senior customer support engineer for the Routing Protocols Technical Assistance Center (TAC) team, troubleshooting issues related to CEF and routing protocols. Nakia has been with Cisco for more than six years, previously serving as a technical leader for the Architecture TAC team. She has given training courses on CEF operation and troubleshooting for internal

employees. Nakia also worked for a year with IBM Global Services LAN Support in Research Triangle Park, North Carolina. Nakia attended North Carolina State University and completed her bachelor of science degree in electrical engineering in 1996. She also earned a master of science in computer networking

and computer engineering from North Carolina State University in 2000.

 

Russ White, CCIE No. 2635, is a member of the Routing Protocol Design and Architecture Team at Cisco, Research Triangle Park, North Carolina. He is a member of the Internet Engineering Task Force (IETF) Routing Area Directorate, a cochair of the Routing Protocols Security Working Group in the IETF, a regular speaker at Networkers, a member of the Cisco Certified Internetwork Expert (CCIE) Content Advisory Group, a member of the core team developing the new Cisco Design certification, a regular contributor to the Internet Protocol Journal, and the coauthor of six other books about routing and routing  protocols, including Optimal Routing Design, from Cisco Press. Russ primarily works in the development of new features and design architectures for routing protocols.

 

Stacia McKee is a customer support engineer and technical leader of the Routing Protocols (RP) Technical Assistance Center (TAC) team at Cisco in  research Triangle Park, North Carolina. This team focuses on providing postsales support of IP routing protocols, Multiprotocol Label Switching (MPLS),

quality of service (QoS), IP multicast, and many other Layer 3 technologies. Stacia has been with Cisco for more than six years, previously serving as a technical leader of the Architecture TAC team and member of the WAN/Access TAC team. She has created and presented training on packet switching, router architecture, and troubleshooting for internal employees. Stacia has also been a technical editor and reviewer of Cisco.com technical documentation, mainly in router and IOS architecture and IP routing protocols technologies. She works closely with the IP Routing and IP Services groups within the Cisco

Network Software and Systems Technology Group (NSSTG) on customer problems and early field trials. In 2000, Stacia completed her bachelor of science degree in computer information systems, bachelor of science degree in business administration, and bachelor of arts degree in computer science at the

College of Charleston in Charleston, South Carolina.

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Most Helpful Customer Reviews

11 of 11 people found the following review helpful By Christos Partsenidis on June 16, 2008
Format: Hardcover
Normally a book review shouldn't start with a warning, well this one does: This book is not for everyone. There's a huge number of Cisco books available, many of them dealing with the same technology (routing, switching), some more in-depth than others, and some dedicated to a specific technology.

Some people don't know that many packets in a router are switched from an input interface to an output interface. This means that the main CPU of a router is not directly, or is less, involved in the forwarding of a packet. Initially all packets traversing a router were process switched, this had some serious performance issues. So Cisco came up with the idea to cache information to the interface processors. This was the birth of fast switching.

Somewhere in the 90's Cisco realized that Fast Switching had its limitations, and a new switching technology was developed which led to CEF (Cisco Express Forwarding). This has become the default switching method in almost all Cisco routers. This book deals with this exclusively.

The book has two parts, one dealing with understanding, configuring and troubleshooting (4 chapters), and the second part (3 chapters) has some CEF case studies.

Chapter 1 deals mainly with the architecture of a router and has some very detailed information about how memory, buffers and interfaces relate to each other.
Chapters 2 and 3 deal with understanding of and enhancements to the original CEF implementations. These two chapters have many show commands to clarify CEF.
Chapter 4 has an IP connectivity troubleshooting example in which CEF can help you to understand the problem, an excellent chapter.
Chapter 5 describes CEF on a Cat6500, which is hardware based, and the differences when troubleshooting CEF on a Cat6500.
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1 of 4 people found the following review helpful By Sam Silver on May 25, 2007
Format: Hardcover
A good book to introduce you to the foundation of packet forwarding for Cisco devices to help with faster troubleshooting and analysis.
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