This sample chapter from CCIE Professional Development: Inside Cisco IOS Software Architecture covers the following key topics: AGS+ hardware architecture, packet switching with the Cbus, and the Cisco 7000 Series router.
Network address translation (NAT) is a function by which IP addresses within a packet are replaced with different IP addresses. This sample chapter from Cisco Press focuses on NAT within routers.
To illustrate three basics of highly scalable networks, this Cisco Press sample chapter "reforms" a network that is experiencing stability problems to make it stable and scalable.
This sample chapter from Cisco Press compares differences between the router CLI and the Catalyst 4000/5000/6000 family, describes the command line interface and provides an overview of the menu driven configuration for the other Catalysts.
This sample chapter from CCIE: Routing TCP/IP Volume I shows how routers can discover how to correctly switch packets to their respective destinations automatically and share that information with other routers via dynamic routing protocols.
