Specifications

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Cisco 1700 Series Router Software Configuration Guide
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Chapter 7 Configuring Frame Relay
ISDN as the Backup WAN Connection
Configuring the Frame Relay Interface
Follow these steps to configure the Frame Relay interface, which connects your
router to the central-site router over the wide-area network.
Step4
no shutdown Enable the interface and the configuration
changes that you have just made on the
interface.
Step5
exit Exit configuration mode for the this interface.
Command Task
Command Task
Step1
interface Serial0 Enter configuration mode for the serial
interface.
Step2
encapsulation frame-relay Set the encapsulation method on this interface
to Frame Relay.
Step3
interface Serial0.1 point-to-point Enter configuration mode for the serial
subinterface and specify this interface as a
point-to-point connection.
Step4
backup interface BRI0 Configure the BRI interface to act as a backup
line for this interface.
Step5
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.
Step6
ip address 172.16.26.1 255.255.255.0 Configure this interface with an IP address.
Step7
ipx network 9876 Enable IPX routing on this interface.