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Dataplane configuration

DATAPLANE attribute of the JSON configuration is responsible for the dataplane configuration.

To choose which implementation to use you should explicitly specify the type attribute of the configuration.

Implementation details

Currently, there are two dataplane types available: PTF and SNAPPI. Both of them are implementing SaiDataplane interface which is defined in the common/sai_dataplane.py.

Dataplane implementation is located under common/sai_dataplane/ directory. There you can find two directories ptf and snappi that correspond to the two available dataplane types.

PTF example

"dataplane": [
  {
    "alias": "ptf",
    "type": "ptf",
    "mode": "eth",
    "port_groups": [
      {"alias": 0, "name": "veth1"},
      {"alias": 1, "name": "veth2"}
    ]
  }
]

Where port_groups contain two ports: "veth1" and "veth2".

SNAPPI example

"dataplane": [
  {
    "alias": "tg",
    "type": "snappi",
    "mode": "ixia_c",
    "controller": "https://127.0.0.1:8443",
    "port_groups": [
      {"alias": 0, "name": "veth1", "speed": "10G"},
      {"alias": 1, "name": "veth2", "speed": "10G"}
    ]
  }
]

SNAPPI specific attributes:

mode - ixia_c/ixnetwork/trex

controller - Depends on mode:

  • ixia_c - https://<tgen-ip>:<port>
  • ixnetwork - https://<tgen-ip>:<port>
  • trex - <tgen-ip>:<port>

port_groups may contain optional attribute - location - which is TG specific URL of the port. The format depends on a particular TG type.

Example for Ixia-C:

"port_groups": [
    {"alias": 0, "name": "veth1", "speed": "10G", "location": "127.0.0.1:5555"},
    {"alias": 1, "name": "veth2", "speed": "10G", "location": "127.0.0.1:5556"}
]