Specifications

Chapter 7 Configuring Frame Relay
Frame Relay with an Internal DSU/CSU
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Cisco 1700 Series Router Software Configuration Guide
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Confirming That the Interface Is Receiving a Line Signal
You can verify that the interface is receiving a line signal by performing the
following steps:
Step 1 From the privileged EXEC command mode, enter the show service module
serial0 command. You should see command output similar to the following:
Router# show service-module serial0
Module type is 4-wire Switched 56K in DDS mode,
Current line rate is 56 Kbits/sec and role is Telco side,
Last clearing of alarm counters 21:23:25
oos/oof : 0,
loss of signal : 0,
loss of sealing current: 0,
CSU/DSU loopback : 0,
loopback from remote : 0,
DTE loopback : 0,
line loopback : 0,
Step 2 Confirm that the “loss of signal” message shows zero, which means that there are
no problems with the interface receiving a line signal.
Step 3 To continue configuration, reenter global configuration mode.
Configuring the Frame Relay Subinterface
Follow these steps to configure the Frame Relay subinterface network addresses.
Command Task
Step1
interface Serial0.1 point-to-point Enter configuration mode for the serial
subinterface, and specify this interface as a
point-to-point connection.
Step2
ip address 172.16.26.1 255.255.255.0 Configure this interface with an IP address
and a subnet mask.
Step3
ipx network 987 Enable IPX routing on this interface.
Step4
frame-relay interface-dlci 17 Assign a DLCI to the Frame Relay
subinterface.