Cisco Systems C819GUK9 interface type number, backup interface interface-type interface-number

Chapter 6 Configuring Backup Data Lines and Remote Management

Configuring Backup Interfaces

To configure your router with a backup interface, perform these steps, beginning in global configuration mode:

SUMMARY STEPS

1.interface type number

2.backup interface interface-type interface-number

3.exit

DETAILED STEPS

	Command	Purpose
Step 1
	interface type number	Enters interface configuration mode for the
	Example:	interface for which you want to configure backup.
		This can be a serial interface, ISDN interface, or
	Router(config)# interface xxx 0
		asynchronous interface.
	Router(config-if)#
Step 2
	backup interface interface-type	Assigns an interface as the secondary or backup
	interface-number	interface.
	Example:	This can be a serial interface or asynchronous
		interface. For example, a serial 1 interface could
	Router(config-if)# backup interface serial
		be configured to back up a serial 0 interface.
	0
	Router(config-if)#	The example shows a serial interface configured
		as the backup interface for the ATM 0 interface.
Step 3
	exit	Exits the configuration interface mode.
	Example:
	Router(config-if)# exit
	Router(config)#

Cisco 819 Series Integrated Services Routers Software Configuration Guide

6-2 OL-23590-02