Specifications

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Cisco 1700 Series Router Software Configuration Guide
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Chapter 7 Configuring Frame Relay
ISDN as a Backup Connection with Dialer Profiles
Configuring the Primary Connection to the Second Central-Site
Router
Follow these steps to configure a Frame Relay connection to a second central-site
router.
Command Task
Step1
interface serial0.2 point-to-point Create a subinterface, and enter configuration
mode for the interface.
Step2
backup delay 10 10 Define when the ISDN line is used as a
backup for this interface:
• The first number is the amount of time (in
seconds) that the Frame Relay line is
down before the ISDN line comes up as
the backup line.
• The second number is amount of time (in
seconds) after the Frame Relay line
comes back up until the ISDN line goes
down.
Step3
backup interface Dialer2 Configure the BRI interface to act as a dial
backup line for this subinterface.
Step4
ip address 172.16.40.40 255.255.255.0 Configure this subinterface with an IP
address.
Step5
ipx network BBCC Configure this subinterface with an IPX
network address.
Step6
frame-relay interface-dlci 18 Assign a DLCI to this subinterface.
Step7
no shutdown Enable the configuration changes for this
subinterface.
Step8
exit Exit configuration mode for this subinterface.