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[action] [PR:17819] Fix BFD status check and ipv6 PTF intermittent issue. #19874

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Merged
mssonicbld merged 1 commit into from
Jul 29, 2025
Merged

[action] [PR:17819] Fix BFD status check and ipv6 PTF intermittent issue. #19874

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8 changes: 7 additions & 1 deletion tests/bfd/test_bfd.py
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Original file line number Diff line number Diff line change
Expand Up @@ -382,6 +382,10 @@ def test_bfd_basic(request, rand_selected_dut, ptfhost, tbinfo, ipv6, dut_init_f
add_dut_ip(duthost, neighbor_devs, local_addrs, prefix_len)
init_ptf_bfd(ptfhost)
add_ipaddr(ptfhost, neighbor_addrs, prefix_len, neighbor_interfaces, ipv6)

# Delay to allow for IPv6 addresses to be fully programmed so IPv6
# neighborship can be resolved on PTF side.
time.sleep(5)
create_bfd_sessions(ptfhost, duthost, local_addrs, neighbor_addrs, dut_init_first)

time.sleep(1)
Expand All @@ -395,7 +399,9 @@ def test_bfd_basic(request, rand_selected_dut, ptfhost, tbinfo, ipv6, dut_init_f

for idx, neighbor_addr in enumerate(neighbor_addrs):
if idx == update_idx:
check_dut_bfd_status(duthost, neighbor_addr, "Admin_Down")
# RFC 5880, section 6.2: Remote system (dut) to enter "Down"
# state when local system (ptf) is set to "AdminDown" state.
check_dut_bfd_status(duthost, neighbor_addr, "Down")
check_ptf_bfd_status(ptfhost, neighbor_addr, local_addrs[idx], "AdminDown")
else:
check_dut_bfd_status(duthost, neighbor_addr, "Up")
Expand Down
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