Sample Frame Relay Switch Configuration for CCIE Voice Lab

In my CCIE voice lab, I am using a 2821 router with multiple VWIC-2MFT-G703 equipped in the PSTN router as the frame relay switch.  The other 2821 routers are also equip with VWIC-1MFT-G703 for data connection.  The advantage of this approach is you don't need to pay for the serial cable cost, it can be done using normal Cat5 cable, with the correct G.703 cross over cable pin out.  The crossover cable is 1-4, 2-5 inverse.  This is my cable pin out:

1. Orange-white - - - Blue
2. Orange - - - Blue-white
3. Green-white - - - Green-white
4. Blue - - - Orange-white
5. Blue- white - - - Orange
6. Green - - - Green
7. Brown-white - - - Brown-white
8. Brown - - - Brown

To create serial interface, channel-group command will be used under controller.  For each DS0 timeslot, the default bandwidth is 56Kbps for T1 card and 64Kbps for E1 card.

controller E1 0/0/0
 channel-group 1 timeslots 1-3

In the above configuration, a 192Kbps connection is created for the interface serial 0/0/0:1

Then the next step is to configure the interfaces that are created for frame relay switching, here is the sample configuration:

interface Serial0/0/0:1
description -- Data connection to HQ --
 no ip address
 encapsulation frame-relay
 frame-relay lmi-type ansi
 frame-relay intf-type dce
 frame-relay route 201 interface Serial0/0/1:1 101
 frame-relay route 202 interface Serial0/1/0:1 102
!
interface Serial0/0/1:1
 description -- Data connection to SB --
 no ip address
 encapsulation frame-relay
 no frame-relay inverse-arp
 frame-relay lmi-type ansi
 frame-relay intf-type dce
 frame-relay route 101 interface Serial0/0/0:1 201
!
interface Serial0/1/0:1
 description -- Data connection to SC --
 no ip address
 encapsulation frame-relay
 no frame-relay inverse-arp
 frame-relay lmi-type ansi
 frame-relay intf-type dce
 frame-relay route 102 interface Serial0/0/0:1 202

After it is created, and configuration on the frame relay routers are configured, in the "show frame-relay pvc" you should see "switched" PVC is in active state.  This is an example for interface s0/0/0:1.

PVC Statistics for interface Serial0/0/0:1 (Frame Relay DCE)

              Active     Inactive      Deleted       Static
  Local          0            0            0            0
  Switched       2            0            0            0
  Unused         0            0            0            0