Cisco Systems 7401ASR manual Functional Overview, Chassis Slot and Logical Interface Numbering

C H A P T E R 3

Starting and Configuring

This chapter describes how to start the system and perform a basic configuration for your

Cisco 7401ASR router. The chapter contains the following sections:

•Functional Overview, page 3-1

•Checking Conditions Prior to System Startup, page 3-9

•Starting the System and Observing Initial Conditions, page 3-9

•Configuring a Cisco 7401ASR Router, page 3-10

•Performing Other Configuration Tasks, page 3-21

•Replacing or Recovering a Lost Password, page 3-22

•Viewing Your System Configuration, page 3-25

•Performing Complex Configurations, page 3-27

This chapter guides you through a basic router configuration, which is sufficient for you to access your network. Complex configuration procedures are beyond the scope of this publication and can be found in the modular configuration and modular command reference publications in the Cisco IOS software configuration documentation set that corresponds to the software release installed on your Cisco hardware.

To configure a Cisco 7401ASR router from a console, you need to connect a terminal to the router console port.

Functional Overview

This section provides a functional overview of the Cisco 7401ASR router. It describes the numbering and addressing scheme of the port adapter for the router, the environmental monitoring and reporting functions, and online insertion and removal (OIR). These descriptions help you become familiar with the capabilities of the Cisco 7401ASR router.

Chassis Slot and Logical Interface Numbering

In the Cisco 7401ASR router, the port-adapter-slot-numberis the chassis slot in which a port adapter is installed, whereas the logical-interface-numberis the physical location of the interface port on a port adapter.

The port adapter slot in the Cisco 7401ASR router is numbered slot 1. Port adapter slot 0 is always reserved for logical slots 10 1001000 on the system board.

Cisco 7401ASR Installation and Configuration Guide

OL-5419-01 B0 3-1