[Bug]: tests/fdb/test_fdb_mac_learning.py::testFdbMacLearning failed on dualtor-aa setup

[echuawu]

Issue Description

Case tests/fdb/test_fdb_mac_learning.py::testFdbMacLearning failing at dualtor-aa setup.
The check of dummy mac is failing
pytest_assert(wait_until(300, 2, 1, fdb_table_has_dummy_mac_for_interface, duthost, target_ports_to_ptf_mapping[0][0], self.DUMMY_MAC_PREFIX), "After starting {}" " and populating fdb, corresponding mac address entry not seen in mac table" .format(target_ports_to_ptf_mapping[0][0]))

Results you see

Case failed:
Failed: After starting Ethernet4 and populating fdb, corresponding mac address entry not seen in mac table
The dummy mac exist in the wrong tor.

Results you expected to see

The dummy mac should be in the mac table at the correct tor.

Is it platform specific

generic

Relevant log output

No response

Output of show version

202405

Attach files (if any)

No response