CCNA Complete Guide 2nd Edition.pdf - Cisco Learning Home

Appendix 2
Frame Relay Switch Configuration
Basic Frame Relay Switching Network with 3 Cisco Routers
RT1 FR-SW RT2
DLCI 102
172.16.1.0/24
S0/0
S0/0
172.16.2.0/24
S0/0
S0/1
DLCI 101
DLCI 101 DLCI 102
Figure A2-1: Sample Frame Relay Switching Network I
- Frame Relay Switching configuration on FR-SW:
!
hostname FR-SW
!
frame-relay switching
!
interface Serial0/0
no ip address
encapsulation frame-relay
clockrate 1000000
frame-relay intf-type dce
frame-relay route 102 interface Serial0/1 101
!
interface Serial0/1
no ip address
encapsulation frame-relay
clockrate 1000000
frame-relay intf-type dce
frame-relay route 101 interface Serial0/0 102
!
- The frame-relay switching global configuration command enables FR switching on a router.
- The frame-relay route {input dlci} interface {outgoing interface} {output dlci} interface
subcommand defines a static entry in the Frame Relay switching table.
- No IP address configuration is required on the Frame Relay switch interfaces (L3 function).
It only requires mapping of DLCIs to interfaces (L2 function).
- The show frame-relay route EXEC command verifies the configuration of a FR switch:
FR-SW#show frame-relay route
Input Intf Input Dlci Output Intf Output Dlci Status
Serial0/0 102 Serial0/1 101 inactive
Serial0/1 101 Serial0/0 102 inactive
FR-SW#
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yapchinhoong@hotmail.com