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Defining Custom Frame Relay Rewrite Rule on IQE PICs

For Juniper Networks device interfaces with the Frame Relay encapsulation, you can rewrite the discard eligibility (DE) bit based on the loss priority of the Frame Relay traffic. A rewrite rule sets the DE bit to the class-of-service (CoS) value 0 or 1 based on the assigned loss priority of low, medium-low, medium-high, or high for each outgoing frame.

To define a Frame Relay DE bit rewrite rule:

  1. Specify the rewrite rule for Frame Relay DE bit based on the loss priority at the [edit class-of-service loss-priority-rewrites] hierarchy level.

    For example:

    Note:

    The rewrite rule does not take effect until you apply it to a logical interface.

  2. Apply a rule to a logical interface.

    For example:

  3. Verify the configuration in operational mode.

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