Typical Frame Relay Configuration Example 281
II. Networking Diagram
Figure 98 Networking diagram of Frame Relay over IP
III. Configuration Procedure
1Configure RouterA
aConfigure the Frame Relay interface Serial0
[Router]interface serial 0
[Router-Serial0]link-protocol fr
[Router-Serial0]fr interface-type dce
[Router-Serial0]fr dlci 100
bConfigure IP interface Ethernet0
[Router]interface ethernet 0
[Router-Ethernet0]ip address 10.110.50.1 255.255.255.0
cConfigure tunnel interface
[Router]interface tunnel 1
[Router-Tunnel1]source 10.110.50.1
[Router-Tunnel1]destination 10.110.50.2
dConfigure Frame Relay over IP
[Router]interface serial 0
[Router-Serial0]fr dlci-switch 100 interface tunnel 1 dlci 200
2Configure RouterB
aConfigure the Frame Relay interface Serial0.
[Router]interface serial 0
[Router-Serial0]link-protocol fr
[Router-Serial0]fr interface-type dce
[Router-Serial0]fr dlci 300
bConfigure IP interface Ethernet0
[Router]interface ethernet 0
[Router-Ethernet0]ip address 10.110.50.2 255.255.255.0
cConfigure tunnel interface
[Router]interface tunnel 1
[Router-Tunnel1]source 10.110.50.2
[Router-Tunnel1]destination 10.110.50.1
dConfigure Frame Relay over IP
[Router]interface serial 0
[Router-Serial0]fr dlci-switch 300 interface tunnel 1 dlci 200
Back-to-back Connection
through Frame Relay
over ISDN
I. Networking Requirements
RouterA (DTE) and RouterB (DCE) are connected via ISDN. RouterA adopts legacy
BDR to make calls while RouterB adopts dialer profiles. To establish a PVC, the call
must be originated from RouterA.
Router A Router B
DLCI 300DLCI 100 DLCI 200 DLCI 200
E0 E0
IP Network
Tunnel
Frame Relay
Network Frame Relay
Network