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Stitching Two Point-to-Point Pseudowires

 

A multi-segment pseudowire (MS-PW) is a static or dynamically configured set of two or more contiguous pseudowire segments that behave and function as a single point-to-point pseudowire. Each end of an MS-PW, by definition, terminates on a T-PE.

Pseudowires are deployed in large networks. Such networks typically encompass hundreds or thousands of aggregation devices at the edge, each of which would be a provider edge (PE). These networks can be partitioned into separate metro and core pseudowire domains, with multi-segment pseudowires connecting endpoints across the various domains. You can stitch two point-to-point pseudowires.

To stitch two point-to-point pseudowires:

  1. Create a point-to-point service definition.

    In the General tab, you must select the Enable Multi Segment Pseudowire check box to enable multi-segment pseudowire.

    For more information on creating a point-to-point service definition, see Creating a Point-to-Point Ethernet Service Definition.

  2. Create a point-to-point service order.

    The fields displayed in the point-to-point service order are based on the point-to-point service definition that you created in Step 1. In the second endpoint settings page, select an interworking (iw) interface and specify the stitching unit.

    For more information on creating a point-to-point service order, see Creating a Point-to-Point Service Order.

  3. Deploy the point-to-point service order.
    1. In the Manage Service Orders inventory page, select the point-to-point service order you created in Step 2.

    2. Right-click the point-to-point service order and select Deploy Service Order. The Schedule Service Order Deployment page appears.

    3. Select the Deploy now option button and click Ok.

    The service order is deployed.

  4. In the Manage Services inventory page, right-click the point-to-point service that you created and select Service > Stitch PW Segment. The Stitch PW Segment inventory page is displayed.

    The Stitch PW Segment inventory page lists only the point-to-point service definitions with the Enable Multi Segment Pseudowire check box enabled. This inventory page must also list the point-to-point service definition you created in Step 1.

  5. Select a point-to-point service definition and click Next.
  6. Specify the General Setting, Connectivity Settings, and Endpoints details. For more information on these fields, see Creating a Point-to-Point Service Order.Note

    The fields of the first endpoint are auto-filled. Notice that the second endpoint fields of the service order you created in Step 2 and the first endpoint fields of this service order are same.

  7. Deploy the stitched service order.
    1. In the Manage Service Orders inventory page, select the point-to-point service order you created in Step 6.

    2. Right-click the point-to-point service order and select Deploy Service Order. The Schedule Service Order Deployment page appears.

    3. Select the Deploy now option button and click Ok.

    The service order is deployed.

The two point-to-point pseudowires are stitched.

The Manage Services lists both services. The point-to-point Service Details page displays the Stitch PW Segment details.

Note

The number of pseudowire segments that you can stitch is limited to two.

You can perform a functional audit to the first service only. You can view the details of the stitched pseudowire in the Functional Audit Results page.