20-25
ATM Switch Router Software Configuration Guide
OL-7396-01
Chapter20 Configuring Frame Relay to ATM Interworking Port Adapter Interfaces
Configuring Frame Relay to ATM Virtual Connections
Configuration Guidelines
Perform the following tasks in a prescribed order before configuring a Frame Relay to ATM interworking
permanent virtual channel (PVC):
Step1 Configure the controller on the Frame Relay port adapter.
Step2 Configure the T1 channel or E1 interface and channel group on the Frame Relay port adapter.
Step3 Configure Frame Relay encapsulation and Frame Relay LMI on the serial port corresponding to the
channel group configured in Step 2.
Step4 Configure Frame Relay resource management tasks including Frame Relay connection traffic table rows.
Step5 Configure Frame Relay to ATM interworking VC tasks.
Configuring Frame Relay to ATM Network Interworking PVCs
This section describes configuring Frame Relay to ATM network interworking PVCs. This type of
connection establishes a bidirectional facility that transfers Frame Relay traffic between two Frame
Relay users through an ATM network.
Figure 20-3 shows an example of a Frame Relay to ATM network interworking PVC between Frame
Relay User A and ATM User D through an ATM network.
Figure20-3 Network Interworking PVC Example
To configure a Frame Relay to ATM network interworking PVC, perform the following steps, beginning
in global configuration mode:
User A
VCC
VCL
s0/1/0:5
DLCI = 43
VCLVCL
s0/0/1:9
DLCI = 255
a4/1/0
a3/0/2
VPI/VCI = 2/100
Switch B Switch C User D
15054
Command Purpose
Step1 Switch(config)# interface serial
card/subcard/port:cgn1
Switch(config-if)#
Selects the interface to be configured.
Step2 Switch(config-if)# frame-relay pvc dlci2
[accept-overflow {enable | disable | inherit}]3
[upc {pass | tag-drop}] [rx-cttr index] [tx-cttr
index] network [clp-bit {0 | 1 | map-de}] [de-bit
{map-de | map-clp-or-de}] [interface atm
card/subcard/port vpi vci [upc upc] [pd {off | on}]
[rx-cttr index] [tx-cttr index]]
Configures a Frame Relay to ATM network
interworking PVC.