[action] [PR:15002] Fixed the failure of test_valid_pfc_frame_with_snappi.py in Cisco DUT #15360
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mssonicbld merged 1 commit intosonic-net:202405from Nov 13, 2024
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…sonic-net#15002) * Fixed the testcase as Cisco DUT generates XON frames. This causes the PFC capture sampling to not detect a XOFF frame being capture. Further the buffer size for capture could be small or big depending on the IXIA model capabaility Hence using continous XOFF injection to avoid overwriting the buffer with XON frames post a XON-XOFF-XON transition * Made !is_cisco do regular else cisco specific
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Original PR: #15002 |
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Description of PR
Summary:
Fixes # (issue)
Type of change
Back port request
Approach
What is the motivation for this PR?
test_valid_pfc_frame_with_snappi.py fails in Cisco DUT.
The issue was due to PFC capture sampling not detecting an XOFF frame in the capture.
How did you do it?
Added a new pcap read logic using a custom Cisco specific function to verify a valid PFC frame in the capture.
Hence using continuous XOFF injection to avoid overwriting the buffer with XON frames post a XON-XOFF-XON transition
How did you verify/test it?
Verified on Cisco DUT
Any platform specific information?
Supported testbed topology if it's a new test case?
Documentation