16079 to 202411: T2:snappi_tests: Increase the number of background flows for cisco-8000 to 10.

[rraghav-cisco]

Description of PR

Summary:
The m2o script uses lossless and lossy flows. The cisco-8000 can send a lot of traffic to a single backplane port, ending up dropping them at the backplane in stead of the outgoing port. The m2o script checks dropped packets at the outgoing port, and due to the above condition fails - when the outgoing port itself didn't drop any of the packets.

Type of change

• Bug fix
• Testbed and Framework(new/improvement)
• Test case(new/improvement)

Back port request

• 202012
• 202205
• 202305
• 202311
• 202405

Approach

What is the motivation for this PR?

The intermittent failure of m2o.

How did you do it?

I changed the number of background flows to 10 for cisco-8000.

How did you verify/test it?

Ran on my TB:

=========================================================================================================== PASSES ===========================================================================================================
_____________________________________________________________________________________ test_m2o_fluctuating_lossless[multidut_port_info2] _____________________________________________________________________________________
--------------------------------------------------------------- generated xml file: /run_logs/ixia/19154-reruns/2024-12-15-22-51-48/tr_2024-12-15-22-51-48.xml ---------------------------------------------------------------
INFO:root:Can not get Allure report URL. Please check logs
================================================================================================== short test summary info ===================================================================================================
PASSED snappi_tests/multidut/pfc/test_m2o_fluctuating_lossless.py::test_m2o_fluctuating_lossless[multidut_port_info2]
========================================================================================= 1 passed, 4 warnings in 574.74s (0:09:34) ==========================================================================================
sonic@snappi-sonic-mgmt-vanilla-202405-t2:/data/tests$ 

Any platform specific information?

Specific to cisco-8000.

Supported testbed topology if it's a new test case?

Documentation

[mssonicbld]

/azp run

[azure-pipelines]

Azure Pipelines successfully started running 1 pipeline(s).

[sdszhang]

@rraghav-cisco you can close this PR. there is no conflict for #16079 on 202411 now after pre-dependencies PR were merged.

[rraghav-cisco]

@rraghav-cisco you can close this PR. there is no conflict for #16079 on 202411 now after pre-dependencies PR were merged.

@sdszhang , sure, I will close it. Thanks for taking care of the dependencies.