Hello folks,
I have a setup where we have a GM
https://timemachinescorp.com/product/ptp-network-time-server-tm2000a/
and a linux client that works fine in the unicast setup we have. All is
fine until the time server for some reason reboot. At that point the
ptp4l daemon on the linux machine never sees the master clock even
though its up and running.
Apr 01 21:12:03 oak ptp4l[11854]: [594698.101] selected /dev/ptp0 as
PTP clock
Apr 01 21:12:03 oak ptp4l[11854]: [594698.101] port 1: INITIALIZING to
LISTENING on INIT_COMPLETE
Apr 01 21:12:03 oak ptp4l[11854]: [594698.101] port 0: INITIALIZING to
LISTENING on INIT_COMPLETE
Apr 01 21:12:04 oak ptp4l[11854]: [594699.892] port 1: new foreign
master 0479b7.fffe.d41853-1
Apr 01 21:12:08 oak ptp4l[11854]: [594703.891] selected best master
clock 0479b7.fffe.d41853
Apr 01 21:12:08 oak ptp4l[11854]: [594703.891] updating UTC offset to 37
Apr 01 21:12:08 oak ptp4l[11854]: [594703.891] port 1: LISTENING to
UNCALIBRATED on RS_SLAVE
Apr 01 21:12:10 oak ptp4l[11854]: [594705.937] master offset 108448 s0
freq -9034 path delay 15522
Apr 01 21:12:11 oak ptp4l[11854]: [594706.943] master offset 107842 s0
freq -9034 path delay 15522
Apr 01 21:12:12 oak ptp4l[11854]: [594707.950] master offset 108695 s0
freq -9034 path delay 15568
Apr 01 21:12:13 oak ptp4l[11854]: [594708.959] master offset 108383 s1
freq -8911 path delay 15568
Apr 01 21:12:14 oak ptp4l[11854]: [594709.966] master offset
-7 s2 freq -8772 path delay 15568
Apr 01 21:12:14 oak ptp4l[11854]: [594709.966] port 1: UNCALIBRATED to
SLAVE on MASTER_CLOCK_SELECTED
Apr 01 21:12:15 oak ptp4l[11854]: [594710.978] master offset
-144 s2 freq -9276 path delay 15586
Apr 01 21:12:16 oak ptp4l[11854]: [594711.989] master offset
1236 s2 freq -7679 path delay 15586
Apr 01 21:12:17 oak ptp4l[11854]: [594712.997] master offset
-506 s2 freq -8912 path delay 15604
Apr 01 21:12:18 oak ptp4l[11854]: [594714.005] master offset
374 s2 freq -8285 path delay 15586
Apr 01 21:12:19 oak ptp4l[11854]: [594715.013] master offset
-438 s2 freq -9161 path delay 15626
Apr 01 21:12:20 oak ptp4l[11854]: [594716.022] master offset
-850 s2 freq -9412 path delay 15658
Apr 01 21:12:21 oak ptp4l[11854]: [594717.028] master offset
-483 s2 freq -9813 path delay 15695
Apr 01 21:12:22 oak ptp4l[11854]: [594718.037] master offset
1067 s2 freq -8244 path delay 15685
Apr 01 21:12:23 oak ptp4l[11854]: [594719.044] master offset
53 s2 freq -8608 path delay 15821
Apr 01 21:12:24 oak ptp4l[11854]: [594720.053] master offset
637 s2 freq -8127 path delay 15821
Apr 01 21:12:25 oak ptp4l[11854]: [594721.062] master offset
246 s2 freq -8394 path delay 15905
Apr 01 21:12:26 oak ptp4l[11854]: [594722.068] master offset
-539 s2 freq -8808 path delay 15905
Apr 01 21:12:27 oak ptp4l[11854]: [594723.081] master offset
-352 s2 freq -8922 path delay 15969
Apr 01 21:12:29 oak ptp4l[11854]: [594724.092] master offset
-853 s2 freq -9038 path delay 15969
Apr 01 21:12:30 oak ptp4l[11854]: [594725.100] master offset
513 s2 freq -8570 path delay 15818
Apr 01 21:12:31 oak ptp4l[11854]: [594726.109] master offset
-721 s2 freq -9042 path delay 15818
Apr 01 21:12:32 oak ptp4l[11854]: [594727.116] master offset
-254 s2 freq -9079 path delay 15721
Apr 01 21:12:33 oak ptp4l[11854]: [594728.125] master offset
687 s2 freq -8535 path delay 15790
Apr 01 21:12:34 oak ptp4l[11854]: [594729.133] master offset
440 s2 freq -8478 path delay 15790
Apr 01 21:12:38 oak ptp4l[11854]: [594734.042] port 1: SLAVE to
LISTENING on ANNOUNCE_RECEIPT_TIMEOUT_EXPIRES
Apr 01 21:12:38 oak ptp4l[11854]: [594734.042] selected local clock
64006a.fffe.6ac793 as best master
Apr 01 21:12:46 oak ptp4l[11854]: [594741.623] selected local clock
64006a.fffe.6ac793 as best master
The last two lines keep repeating. A restart of the ptp4l daemon
recovers from this problem, and i am not sure if that is the expected
behavior. I would assume that ptp4l should recover back after it sees
the GM again on the network. The GM logs do show that the client has
connected up , but ptp4l never shows that in its logs. Am i missing a
line in the config ?
--
cheers,
Hussam
(Hussamuddin Nasir)
Netlab & GENI Operations Team
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301 Rose Street, Rm 237 E-mail : na...@netlab.uky.edu
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University of Kentucky
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