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Configuring Dynamic Shaping Parameters to Account for Overhead in Downstream Traffic Rates

You can configure the overhead accounting feature to shape downstream traffic based on either frames or cells.

You can also account for the different byte sizes per encapsulation by configuring a byte adjustment value for the shaping mode.

To configure the overhead accounting feature in a dynamic profile:

  1. Do one of the following to configure the shaping mode:

    • Specify the shaping mode.

      Frame shaping mode is enabled by default.

    • Configure a variable for the shaping mode.

  2. (Optional) Do one of the following to configure the byte adjustment value:

    • Specify a byte adjustment value.

    • Configure a variable for the byte adjustment.

      Best Practice:

      We recommend that you specify a byte adjustment value that represents the difference between the customer premise equipment (CPE) protocol overhead and B-RAS protocol overhead.

      The available range is –120 through 124 bytes. The system rounds up the byte adjustment value to the nearest multiple of 4. For example, a value of 6 is rounded to 8, and a value of -10 is rounded to -8.

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