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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 VPNInterface for adding a VPN with fields for Customer, Customer Service Template, VPN Type, VPN Name, VPN Template, PE Interface Template, and VPLS ID. Navigation buttons at the bottom: Back, 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 selecting topology for VPN named customer_1 with PE type. Locations: available BERLIN, PARIS, VALENCIA; selected DUBLIN, AMSTERDAM, LONDON.
  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 adding VPN using VPLS with LDP, showing AS65534 connected to three PE routers.
  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 DetailsScreenshot of VPN configuration interface with VPLS-LDP0. Shows nodes GV1, GV2, V_C1 with VCID 137, FastEthernet, dot1qtrunk, 100M bandwidth. Active tab PE Selection.

    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 interfaceNetwork interface selection interface showing FastEthernet0/1 to FastEthernet0/11 with properties like Name, IP Address, and Status.
    Figure 6: Assign the Circuit ID to the interfaceDialog box prompting user to enter circuit unit number for FastEthernet0/1 with input field showing 137 and buttons OK and Cancel.
  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 a remote peer with options GV2 and LSP_81, and buttons Add and Cancel for configuration.
  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 configuredVPN configuration interface for VPLS using LDP, showing node details with VCID 137, encapsulation dot1qtrunk, and bandwidth 100M.