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Configuring MLFR FRF.15 Bundles

J-series Services Routers support Multilink Frame Relay end-to-end (MLFR FRF.15) on the link services interface ls-0/0/0.

With MLFR FRF.15, multilink bundles are configured as logical units on the link services interface, such as ls-0/0/0.0. MLFR FRF.15 bundles combine multiple permanent virtual circuits (PVCs) into one aggregated virtual circuit (AVC). This process provides fragmentation over multiple PVCs on one end and reassembly of the AVC on the other end. For more information about multilink bundles, see Multilink Bundles Overview.

You can configure LFI and CoS with MLFR in the same way that you configure them with MLPPP. For information about configuring LFI and CoS, see Configuring MLPPP Bundles and LFI on Serial Links.

In this example, you aggregate two T1 links to create an MLFR FRF.15 bundle on two J-series Services Routers—Router R0 and Router R1.

To configure an MLFR FRF.15 bundle:

  1. Navigate to the top of the configuration hierarchy in either the J-Web or CLI configuration editor on Router R0 and Router R1.
  2. Perform the configuration tasks described in Table 97.
  3. If you are finished configuring the router, commit the configuration.
  4. Go on to Verifying the Link Services Interface Configuration, to verify your configuration.

Table 97: Configuring MLFR FRF.15 Bundles

Task

J-Web Configuration Editor

CLI Configuration Editor

Navigate to the Interfaces level in the configuration hierarchy. Specify the link services interface as an interface to be configured.
  1. In the J-Web interface, select Configuration>View and Edit>Edit Configuration.
  2. Next to Interfaces, click Configure or Edit.
  3. Next to Interface, click Add new entry.
  4. In the Interface name box, type ls-0/0/0.
  5. Click OK.

From the [edit] hierarchy level, enter

edit interfaces ls-0/0/0

Configure a logical unit on the ls-0/0/0 interface, and define the family type—for example, Inet.

Configure an IP address for the multilink bundle on the unit level of the link services interface.
  1. On the Interfaces page, next to ls-0/0/0, click Edit.
  2. Next to Unit, click Add new entry.
  3. In the Interface unit number box, type 0.
  4. Under Family, select Inet and click Configure.
  5. Next to Address, click Add new entry.
  6. In the Source box, type the appropriate source address:
    • On R0—10.0.0.4/24
    • On R1—10.0.0.5/24
  7. Click OK until you return to the Interfaces page.

Set the appropriate source address for the interface:

  • On R0, enter

    set unit 0 family inet address 10.0.0.4/24

  • On R1, enter

    set unit 0 family inet address 10.0.0.5/24

Define the multilink bundle as an MLFR FRF.15 bundle by specifying the Multilink Frame Relay end-to-end encapsulation type.
  1. On the Interfaces page, next to ls-0/0/0, click Edit.
  2. Under Unit, next to 0, click Edit.
  3. From the Encapsulation list, select multilink-frame-relay-end-to-end.
  4. Click OK until you return to the Interfaces page.

From the [edit interfaces ls-0/0/0] hierarchy level, enter

set unit 0 encapsulation multilink-frame-relay-end-to-end

Specify the names of the constituent links to be added to the multilink bundle—for example, t1-2/0/0 and t1-2/0/1.

Define the Frame Relay encapsulation type.

  1. On the Interfaces page, next to Interface, click Add new entry.
  2. In the Interface name box, type the name of the interface:
    • To configure t1–2/0/0, type t1-2/0/0.
    • To configure t1–2/0/1, type t1-2/0/1.
  3. Click OK.
  4. Next to the interface you want to configure, click Edit.
  5. From the Encapsulation list, select frame-relay.
  1. From the [edit] hierarchy level, enter
    • For configuring t1-2/0/0

      edit interfaces t1-2/0/0

    • For configuring t1-2/0/1

      edit interfaces t1-2/0/1

  2. Enter

    set encapsulation frame-relay

Define R0 to be a data circuit-terminating equipment (DCE) device. R1 performs as a data terminal equipment (DTE) device, which is the default with Frame Relay encapsulation.

For more information about DCE and DTE, see Serial Interface Overview.

On R0 only, select Dce.

On R0 only, enter

set dce

On the logical unit level of the interface, specify the data-link connection identifier (DLCI). The DLCI field identifies which logical circuit the data travels over. DLCI is a value from 16 through 1022—for example, 100. (Numbers 1 through 15 are reserved for future use.)

Specify the multilink bundle to which the interface is to be added as a constituent link—ls-0/0/0.0.
  1. Next to Unit, click Add new entry.
  2. In the Interface unit number box, type 0.
  3. In the Dlci box, type 100.
  4. Under Family, select mlfr-end-to-end and click Configure.
  5. In the Bundle box, type ls-0/0/0.0.
  6. Click OK.

Enter

set unit 0 dlci 100 family mlfr-end-to-end bundle ls-0/0/0.0

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