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ntp: add client support for network correction

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If the network correction is known for both the request and response,
and their sum is not larger that the measured peer delay, allowing the
transparent clocks to be running up to 100 ppm faster than the client's
clock, apply the corrections to the NTP offset and peer delay. Don't
correct the root delay to not change the estimated maximum error.
This commit is contained in:
Miroslav Lichvar
2023-09-26 12:52:39 +02:00
parent 8eef631009
commit 70cdd8b1ef
10 changed files with 216 additions and 51 deletions
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2
test/simulation/110-chronyc
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@@ -114,7 +114,7 @@ limit=1
for chronyc_conf in \
"accheck 1.2.3.4" \
"add peer 10.0.0.0 minpoll 2 maxpoll 6" \
"add server 10.0.0.0 minpoll 6 maxpoll 10 iburst burst key 1 certset 2 maxdelay 1e-3 maxdelayratio 10.0 maxdelaydevratio 10.0 maxdelayquant 0.5 mindelay 1e-4 asymmetry 0.5 offset 1e-5 minsamples 6 maxsamples 6 filter 3 offline auto_offline prefer noselect trust require xleave polltarget 20 port 123 presend 7 minstratum 3 version 4 nts ntsport 4460 copy extfield F323" \
"add server 10.0.0.0 minpoll 6 maxpoll 10 iburst burst key 1 certset 2 maxdelay 1e-3 maxdelayratio 10.0 maxdelaydevratio 10.0 maxdelayquant 0.5 mindelay 1e-4 asymmetry 0.5 offset 1e-5 minsamples 6 maxsamples 6 filter 3 offline auto_offline prefer noselect trust require xleave polltarget 20 port 123 presend 7 minstratum 3 version 4 nts ntsport 4460 copy extfield F323 extfield F324" \
"add server node1.net1.clk" \
"allow 1.2.3.4" \
"allow 1.2" \