[time] Stratum 0?

Lionel Elie Mamane lionel
Mon Sep 13 00:49:27 UTC 2004


On Sat, Sep 11, 2004 at 01:36:08PM -0500, Nicholas Suan wrote:

>> But 194.109.162.5, which is in the pool, reports as stratum 0.

> Looks like it is stratum 2 to me:

After looking more carefully, it sometimes says stratum 0 and
sometimes stratum2 to me. A tcpdump says:


00:42:07.568366 IP (tos 0x10, ttl  57, id 13877, offset 0, flags [DF], length: 76) pb1unx.xs4all.nl.ntp > tofu.home.mamane.lu.ntp: [udp sum ok] NTPv3 server, strat 0, poll 6, prec -17 dist 0.026000, disp 0.067642, ref (unspec)@3304017486.424066
00:43:11.613004 IP (tos 0x10, ttl  57, id 14406, offset 0, flags [DF], length: 76) pb1unx.xs4all.nl.ntp > tofu.home.mamane.lu.ntp: [udp sum ok] NTPv3 server, strat 0, poll 6, prec -17 dist 0.026000, disp 0.068603, ref (unspec)@3304017486.424066990 (2004/09/13 00:38:06) orig 3304017791.547610938 (2004/09/13 00:43:11) rec -0.201936930 xmt -0.201875939
00:44:15.647729 IP (tos 0x10, ttl  57, id 14635, offset 0, flags [DF], length: 76) pb1unx.xs4all.nl.ntp > tofu.home.mamane.lu.ntp: [udp sum ok] NTPv3 server, strat 2, poll 6, prec -17 dist 0.032302, disp 0.994461, ref ntp1.NL.net at 3304017806.921344995 (2004/09/13 00:43:26) orig 3304017855.463206946 (2004/09/13 00:44:15) rec -0.010567946 xmt -0.010499946
00:45:19.682238 IP (tos 0x10, ttl  57, id 14904, offset 0, flags [DF], length: 76) pb1unx.xs4all.nl.ntp > tofu.home.mamane.lu.ntp: [udp sum ok] NTPv3 server, strat 2, poll 6, prec -17 dist 0.034393, disp 0.487426, ref ntp1.NL.net at 3304017872.903555989 (2004/09/13 00:44:32) orig 3304017919.530884921 (2004/09/13 00:45:19) rec +0.015196060 xmt +0.015256061
00:46:23.688209 IP (tos 0x10, ttl  57, id 15470, offset 0, flags [DF], length: 76) pb1unx.xs4all.nl.ntp > tofu.home.mamane.lu.ntp: [udp sum ok] NTPv3 server, strat 2, poll 6, prec -17 dist 0.024520, disp 0.225433, ref ntp0.NL.net at 3304017943.872892022 (2004/09/13 00:45:43) orig 3304017983.597815930 (2004/09/13 00:46:23) rec +0.205216065 xmt +0.205276072

-- 
Lionel


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