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VPLS-LDP VPN

The VPLS-LDP VPN, based on the IETF Lasserre/Kompella draft, is implemented by Cisco and all other vendors except Juniper. To configure a VPLS-LDP VPN, perform the following steps:

  1. First identify, for the VPLS-LDP, a set of PEs with available PE-facing-CE interfaces that can be assigned as VPLS attachment circuits.
  2. Next, bring up the Add VPN window and select VPLS-LDP VPN. In this example, we will configure a VPLS instance named VPLS-LDP0.
    Figure 1: Creating a VPLS-LDP VPNAdd VPN window with step 1 of 5 for configuring VPN. Fields: Customer, Customer Service Template, PE Parameters. VPN Type: VPLS-LDP. VPN Name: customer_1. VPN Template: Default. PE Interface Template: Default. VPLS ID: 11307. Buttons: Next, Close, Help.
  3. Click on Next to take you to the screen to specify a VCID and to select the PEs for the VPLS instance, as shown in the following screen. If you prefer, you may select some or all the PEs in the PE Selection tab in the next screen, as described in the next step. Click on Next to continue.
    Figure 2: Select PEs and Specify a VCIDAdd VPN wizard step 2 of 5 labeled Topology. VPN named customer_1 set to Provider Edge type. Locations available to add include Berlin and Paris. Selected locations are Dublin and London. Buttons for adding or removing locations and navigation buttons for Back, Next, or Close the wizard.
  4. As described in the previous step, you may select PEs in the PE Selection tab, as shown in the following screen. If you have already selected all the PEs in the previous step, then click on the Details tab to continue.
    Figure 3: Additional PEs may be select in the PE Selection tabNetwork configuration interface for setting up a VPLS using LDP. User is in PE Selection tab with three selected objects marked as no interface. Central network diagram shows AS65534 connected to three PE devices. Right panel lists available devices under AS65534. Properties section for configuring interfaces, IP addresses, VRF, and connectivity. Navigation buttons at the bottom: Back, Finish, Cancel, Help.
  5. Next, you are ready to configure the PE-facing-CE attachment circuits; this includes specifying the interface and circuit ID, bandwidth, and encapsulation.
    Figure 4: Configure VPLS-LDP DetailsVPN setup interface for VPLS with LDP showing PE Selection tab listing nodes with VCID, details section for node configuration, and navigation buttons.

    The encapsulation types for various vendors are:

    • Cisco: dot1qaccess, dot1qtunnel, dot1qtrunk.

    • Foundry: tagged, untagged.

    • Tellabs, Riverstone: tagged, untagged, q-in-q.

    The following figures show how an interface is assigned: First, click on the magnifying glass next to Interfaces and choose Add. Then in the Select Interface window, pick an available interface. Finally, type in the VCID for the interface

    Figure 5: Select an interfaceGUI for selecting and configuring network interfaces in a network tool. Lists FastEthernet interfaces on device V_C1 with detailed properties and OK, Cancel buttons.
    Figure 6: Assign the Circuit ID to the interfaceDialog box titled Input prompts user to enter circuit unit number for FastEthernet0/1; text field shows 137 with OK and Cancel buttons.
  6. Next, you will specify, in turn, each remote peer and the transmit LSP used to reach the peer. Click on the magnifying glass next to Remote Peers to bring up the Add Remote Peer window, where you can choose the remote peer and the transmit LSP from the dropdown selection menus.
    Figure 7: Configure PE peersDialog box for adding remote peer with title Add Remote Peer remote of V_C1 label dropdowns for remote GV2 and transmit LSP LSP_81 buttons Add and Cancel.
  7. The following figure shows the assignment details completed for our VPLS instance, VPLS-LDP0. Click on Finish to add the VPLS instance to the model.
    Figure 8: VPLS-LDP instance details configuredNetwork configuration interface for adding a VPN using VPLS with LDP. Shows nodes GV1, GV2, VC1 with VCID 137, interface FastEthernet0/2:137, encapsulation dot1qtrunk, bandwidth 100M. Options to go back, finish, cancel, help available.