Configuring Interoperation with Legacy Frame Relay Layer 2 Services

To configure the router to interoperate with a router that uses the legacy Frame Relay pseudowire type for layer 2 services over MPLS:

1. Configure the Frame Relay interface.

   host1(config)#interface serial 4/1:1/1

   host1(config-if)#encapsulation frame-relay ietf

   host1(config-if)#frame-relay intf-type dte

   host1(config-if)#frame-relay lmi-type ansi

   host1(config-if)#interface serial 4/1:1/1.1

   host1(config-subif)#frame-relay interface-dlci 17 ietf

2. Specify MPLS tunneling by using the appropriate command.

   host1(config-if)#mpls-relay 10.10.100.2 45 relay-format frame-relay

   or

   host1(config-if)#route interface tunnel mpls:tunnel6 45 relay-format frame-relay

3. Configure Frame Relay and MPLS on the remote PE router.

Related Topics

• For information about configuring a more complex Frame Relay over MPLS topology, see Frame Relay over MPLS Configuration Example
• encapsulation frame-relay ietf command
• frame-relay interface-dlci ietf command
• frame-relay intf-type command
• frame-relay lmi-type command
• interface serial command
• mpls-relay command
• route interface command

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