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Fix NTP test failures due to unsynchronized clock #19444

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Merged
yejianquan merged 1 commit into from
Jul 7, 2025
Merged

Fix NTP test failures due to unsynchronized clock #19444

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6 changes: 6 additions & 0 deletions tests/common/helpers/ntp_helper.py
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Original file line number Diff line number Diff line change
Expand Up @@ -40,6 +40,12 @@ def setup_ntp_context(ptfhost, duthost, ptf_use_ipv6):
ptfhost.lineinfile(
path=ntp_conf_path, line="#pool 3.debian.pool.ntp.org iburst", regexp="^pool.*3.debian.*pool.*ntp.*org.*")

# Comment out the tos minclock minsane option line
# Having this option enabled can cause the NTP server to not synchronize
# with the PTF host, which can lead to test failures.
ptfhost.lineinfile(
path=ntp_conf_path, line="#tos minclock 4 minsane 3", regexp="^tos.*minclock.*minsane.*")

ptfhost.lineinfile(path=ntp_conf_path, line="server 127.127.1.0 prefer")

# restart ntp server
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