DPL Release Notes

Changes and New Features

• First release (GA)

 Capabilities and Limitations

 P4 Runtime

• The size of any of P4 table and counter object must be a power-of-2 (smaller than UINT32_MAX)

• A P4 table of size N allows for "N-1" regular entries and 1 default entry

• P4 Controller support:

  • Only one P4 Controller can be connected to the DPL Runtime daemon at a given time.

• RPC messages support:

  • Supported RPC messages:

    • Write RPC:

      • Only CONTINUE_ON_ERROR atomicity is supported

      • Batching is supported

      • Supported entities:

        • TableEntry

        • CounterEntry

        • DirectCounterEntry

        • MeterEntry

        • DirectMeterEntry

      • INSERT operation:

        • Supports regular entries only

      • DELETE operation:

        • Supports regular entries only

      • MODIFY operation:

        • Supports Default entry only

        • Supports indirect and direct counter entry

        • Supports indirect and direct meter entryModemax cir/pirmax cburst/pburstBYTES255000000000       80000000PACKETS  1992187500          625000* In packets mode packet =128 bytes

    • Read RPC:

      • Batching is supported

      • Supported entities:

        • TableEntry

        • CounterEntry

        • DirectCounterEntry

        • MeterEntry

        • DirectMeterEntry

    • SetForwardingPipelineConfig RPC

    • GetForwardingPipelineConfig RPC

  • Unsupported RPC messages:

    •  Capabilities RPC

DPL Nspect

• dpl_nspect graph command – default graph type (pipeline) is not supported. Therefore, the --type  argument is mandatory.

• dpl_nspect graph --help – shows the available graph types.

Bug Fixes

N/A

Known Issues

The following are known limitations of the DPL Runtime daemon service.

Last updated: February 23, 2025