[sonic-mgmt][202505] Cast PR21616 to fix flakiness of "arp/test_stress_arp.py"#21850
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StormLiangMS merged 1 commit intosonic-net:202505from Jan 8, 2026
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…p and fdb on all the duts Most of testcases are sending protocol packets (arp, ipv6_echo requests etc) from server towards ToR device. On dualtor, these protocol packets will be processed by both the ToR duts and thus NEIGH_TABLE in APPL_DB will be populated in both the duts (though hardware/ASIC_DB programming will happen only on active ToR). Fix: It's always better to clear arp and fdb tables on both the ToRs before and after the testcase by updating "arp_cache_fdb_cleanup" fixture to iterate over "duthosts" for cleanup. Signed-off-by: Vinod <vkjammala@arista.com>
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Description of PR
Summary: Update "arp/test_stress_arp.py" test fixture to clear arp and fdb on all the duts
Fixes # (issue)
Type of change
Back port request
Approach
How did you do it?
This is cast of #21616, see PR21616 for more details.
How did you verify/test it?
Any platform specific information?
Supported testbed topology if it's a new test case?
Documentation