Configuration Tasks

MLFR configuration consists of three major tasks, each with several steps:

1. Create the member links to be aggregated into a multilink bundle.
   1. Specify the interface on which you want to configure MLFR.

      host1(config)#interface serial 2/0:1

   2. Specify MLFR as the encapsulation method on the interface.

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

2. Add member links to a multilink bundle.
   1. Define the MLFR bundle.

      host1(config)#interface mlframe-relay boston

   2. Add each member link.

      host1(config-if)#member-interface serial 2/0:1

   3. (Optional) Add a description to the major interface.

      host1(config-if)#frame-relay description bostonBundleDescription

   4. (Optional) Configure Frame Relay parameters.

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

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

3. Configure the Frame Relay subinterface.
   1. Define the subinterface for the MLFR bundle.

      host1(config)#interface mlframe-relay boston.1

   2. Assign a DLCI for the subinterface.

      host1(config-subif)#frame-relay interface-dlci 16 ietf

   3. (Optional) Add a description to the subinterface.

      host1(config-subif)#frame-relay description bostonBundleSubOneDescription

   4. Assign an IP address to the subinterface.

      host1(config-subif)#ip address 10.10.100.1 255.255.255.0

Configuration Example

The following commands configure three T1 lines and aggregate them into a multilink bundle named boston.

Configuring Frame Relay Versus MLFR

All the configuration commands that apply to Frame Relay also apply to MLFR. The following listing describes commands specific to configuring MLFR; for other Frame Relay commands, see Configuring Frame Relay.

encapsulation mlframe-relay ietf

• Use to configure MLFR as the encapsulation method on an individual interface.
• Use this command only within the context of an individual interface. Issuing this command creates an MLFR link, also referred to as an MLFR bundle member.
• Example

  host1(config)#interface serial 2/0:1

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

• Use theno version to disable MLFR on an interface.
• See encapsulation mlframe-relay ietf.

interface mlframe-relay

• Use to create a Frame Relay major interface, also known as the MLFR bundle.
• Example

  host1(config-if)#interface mlframe-relay group2

• Use the no version to delete the MLFR bundle.
• See interface mlframe-relay.

member-interface

• Use to add an MLFR interface—also known as an MLFR bundle member—to an MLFR bundle.
• Example

  host1(config-if)#member-interface serial 2/0:1

• Use the no version to remove the specified interface from the MLFR bundle.
• See member-interface.

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