Amazon.com description: Product Description: OSPF for Cisco Routers will provide you with the information you need to master OSPF - the most popular, open, non-proprietary, robust and highly flexible IP routing protocol of choice in today’s complex internetworks. From the basic overview of IP routing to the most complex components of OSPF, everything is covered in great detail. The protocol extensions that have been introduced over the years are also extensively discussed. In addition, advanced configuration and troubleshooting techniques are explained, leading you to a full understanding of the protocol’s architecture and components and how to best implement it using Cisco routers. Whether you are preparing for the challenging CCIE certification, working on expanding a network, or just trying to gain a complete understanding of the OSPF protocol, this definitive guide is essential.