Cisco 3725 Software Configuration Guide - Page 21

CHAPTER 1 Understanding Interface Numbering and Cisco IOS Software Basics This chapter provides an overview of the interface numbering in the Cisco 2600 series, Cisco 3600 series, and Cisco 3700 series routers. It also describes how to use the Cisco IOS software commands. Understanding Interface Numbering This section contains information with which you should be familiar before you begin to configure your router for the first time, including interface numbering and what you should do before starting your router. Cisco 2600 Series Interface Numbering Each network interface on a Cisco 2600 series router is identified by a slot number and a unit number. Table 1-1 lists the router models and summarizes the interfaces supported on each model that are available in the Cisco 2600 series routers OL-1957-04 Software Configuration Guide For Cisco 2600 Series, Cisco 3600 Series, and Cisco 3700 Series Routers 1-1