Documentation for PTF? about ptf HOT 2 CLOSED

Besides the partial documentation in the README and the one example in the examples directory in this repository, I also recall that the advanced track tutorial on the P4 developer day on 2019-May-01 used PTF tests. The creators of the tutorial created some almost-complete PTF tests in this repository: https://github.com/opennetworkinglab/onos-p4-tutorial

As far as inserting table entries, the example in this repository looks like it uses the Thrift API. The one in the onos-p4-tutorial uses the P4Runtime API, I believe, so basically PTF does not seem to mandate or require one particular control plane API -- it is whatever you can implement in Python.

I am not familiar enough with PTF to know that I am suggesting the best course of learning, but this example test contains calls to send_packet and verify_packet methods that are probably implemented somewhere within PTF for sending packets to a device, and checking captured output packets to see if they contain the expected contents:
https://github.com/opennetworkinglab/onos-p4-tutorial/blob/master/ptf/tests/routing.py

from ptf.

Thanks for getting back. I have seen several Python programs for PTF testing and each program uses its own packet generator to prepare sending packet and expected packet - not good. In comparison STF is so much better, just allowing sent/expected packets to be in hex. I don't see the tutorial examples show how to add a table entry. In other PTF programs I have seen, I see a different API used by different creators for adding a table entry - sigh! STF is so much better for basic packet testing with simple_switch.

from ptf.