in den Release-Notes steht zu LCOS Änderungen von 9.24.0153 RU3 ► 9.24.0212 RU4 unter Korrekturen / Anpassungen im Abschnitt Allgemein:
Was heißt zurückgesetzt? Auf null? Oder auf den Wert, der übermittelt wurde? Wobei man in dem Fall wohl unterscheiden muss, ob eben manuell oder per NTP-Server. Denn manuell wird (oder kann) wohl niemand Millisekungen angeben, über NTP hingegen ist das ja Standard.Wenn die Uhrzeit auf einem Gerät gesetzt wird (manuell oder per NTP-Server), werden auch die Millisekunden zurückgesetzt.
Für mich ist jetzt der NTP-Fall derjenige, der mich interessiert. Weil in 99,9 % der Fälle setze ich damit die Zeit und nicht manuell. Und wenn ich einen LANCOM per NTP zeitlich aktualisieren lasse, dann werden die Millisekunden einfach nicht mitaktualisiert. Liefert der Timeserver jetzt mal angenommen die Uhrzeit 10:08:13,920, dann macht der LANCOM daraus 10:08:13,000, womit er - in diesem Fall - fast eine Sekunde nachgeht, im Durchschnitt eine halbe Sekunde. Mit einer halben Sekunde kann man sich ja noch zufrieden geben, aber eine Sekunde, das ist für gerade eben aktualisiert schon ganz schön daneben. Insbesondere, wenn man den LANCOM als Timeserver nutzt oder das Syslog auswerten muss.
Dazu kommt, dass die Zeitaktualisierung per WLC/CAPWAP ebenso davon betroffen zu sein scheint. Dort ist es so, dass wenige Sekunden, nachdem die Zeit korrigiert wurde, die Zeit wieder korrigiert wird und mitunter wenige Sekunden noch ein weiteres Mal. Ich meine das kann es doch eigentlich nicht sein. In wenigen Sekunden kann (und wird) von der internen Uhr keine derartig hohe Abweichung erzeugt werden, die die Korrektur um eine ganze Sekunde zur Folge hat. Daher schlussfolgere ich draus: Uhr richtig stellen, also auch die Millisekunden, und die Abweichung hält sich zumindestens für die nächsten 6 Stunden in Grenzen.
Die Beobachtungen beziehen sich jetzt auf LCOS 9.24, treten aber auch schon länger auf.
Anfangs hatte ich teilweise extreme Zeitdifferenzen, deswegen hatte ich PRTG auf den LANCOM-Zeitserver angesetzt. Dann habe ich das Aktualisierungsintervall runtergesetzt. Hier sieht man die Abweichungen im Laufe der Zeit durch die nicht gesetzen Millisekunden. Man muss dazu sagen, dass PRTG nur nach ganzen Sekunden auflöst. Solange also die Differenz unter 1 Sekunde ist, gibt PRTG 0 aus, bei 1,5 Sek. Abweichung 1 Sekunden usw. Nachfolgend sieht man das mal im detaillierten Anblick. 22:10 Uhr und 10:10 Uhr finden täglich die Zeitakutalisierungen statt. Jetzt noch Syslog-Meldungen von einem WLC-gemanagten AP:
Code: Alles auswählen
Idx. Time Source Level Message
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8 2017-09-11 20:12:46 CRON Notice System time changed to 9/11/2017 18:12:46 (UTC), time difference is +0:00:01
16 2017-09-11 17:49:35 CRON Notice System time changed to 9/11/2017 15:49:35 (UTC), time difference is +0:00:01
17 2017-09-11 17:48:51 CRON Notice System time changed to 9/11/2017 15:48:51 (UTC), time difference is +0:00:01
18 2017-09-11 17:03:45 CRON Notice System time changed to 9/11/2017 15:03:45 (UTC), time difference is +0:00:01
19 2017-09-11 17:03:28 CRON Notice System time changed to 9/11/2017 15:03:28 (UTC), time difference is +0:00:01
20 2017-09-11 17:02:46 CRON Notice System time changed to 9/11/2017 15:02:46 (UTC), time difference is +0:00:01
36 2017-09-11 16:31:07 CRON Notice System time changed to 9/11/2017 14:31:07 (UTC), time difference is +0:00:01
37 2017-09-11 16:30:48 CRON Notice System time changed to 9/11/2017 14:30:48 (UTC), time difference is +0:00:01
57 2017-09-11 15:04:16 CRON Notice System time changed to 9/11/2017 13:04:16 (UTC), time difference is +0:00:01
65 2017-09-11 13:26:29 CRON Notice System time changed to 9/11/2017 11:26:29 (UTC), time difference is +0:00:01
66 2017-09-11 13:25:32 CRON Notice System time changed to 9/11/2017 11:25:32 (UTC), time difference is +0:00:01
67 2017-09-11 12:43:43 CRON Notice System time changed to 9/11/2017 10:43:43 (UTC), time difference is +0:00:01
69 2017-09-11 11:53:01 CRON Notice System time changed to 9/11/2017 9:53:01 (UTC), time difference is +0:00:01
76 2017-09-11 10:51:16 CRON Notice System time changed to 9/11/2017 8:51:16 (UTC), time difference is +0:00:01
77 2017-09-11 10:50:58 CRON Notice System time changed to 9/11/2017 8:50:58 (UTC), time difference is +0:00:01
104 2017-09-11 08:07:13 CRON Notice System time changed to 9/11/2017 6:07:13 (UTC), time difference is +0:00:01
105 2017-09-11 08:06:56 CRON Notice System time changed to 9/11/2017 6:06:56 (UTC), time difference is +0:00:01
106 2017-09-11 07:17:43 CRON Notice System time changed to 9/11/2017 5:17:43 (UTC), time difference is +0:00:01
107 2017-09-11 07:16:56 CRON Notice System time changed to 9/11/2017 5:16:56 (UTC), time difference is +0:00:01
109 2017-09-11 04:33:51 CRON Notice System time changed to 9/11/2017 2:33:51 (UTC), time difference is +0:00:01
110 2017-09-11 04:32:47 CRON Notice System time changed to 9/11/2017 2:32:47 (UTC), time difference is +0:00:01
111 2017-09-11 03:44:47 CRON Notice System time changed to 9/11/2017 1:44:47 (UTC), time difference is +0:00:01
112 2017-09-11 03:03:26 CRON Notice System time changed to 9/11/2017 1:03:26 (UTC), time difference is +0:00:01
113 2017-09-11 03:02:43 CRON Notice System time changed to 9/11/2017 1:02:43 (UTC), time difference is +0:00:01
114 2017-09-11 02:22:30 CRON Notice System time changed to 9/11/2017 0:22:30 (UTC), time difference is +0:00:01
115 2017-09-11 01:36:47 CRON Notice System time changed to 9/10/2017 23:36:47 (UTC), time difference is +0:00:01
116 2017-09-11 00:58:30 CRON Notice System time changed to 9/10/2017 22:58:30 (UTC), time difference is +0:00:01
117 2017-09-11 00:14:13 CRON Notice System time changed to 9/10/2017 22:14:13 (UTC), time difference is -0:00:02
124 2017-09-10 23:27:20 CRON Notice System time changed to 9/10/2017 21:27:20 (UTC), time difference is +0:00:01
141 2017-09-10 22:00:01 CRON Notice System time changed to 9/10/2017 20:00:01 (UTC), time difference is +0:00:01
150 2017-09-10 21:21:05 CRON Notice System time changed to 9/10/2017 19:21:05 (UTC), time difference is +0:00:01
151 2017-09-10 21:20:26 CRON Notice System time changed to 9/10/2017 19:20:26 (UTC), time difference is +0:00:01
174 2017-09-10 20:31:18 CRON Notice System time changed to 9/10/2017 18:31:18 (UTC), time difference is +0:00:01
175 2017-09-10 20:30:53 CRON Notice System time changed to 9/10/2017 18:30:53 (UTC), time difference is +0:00:01
176 2017-09-10 19:32:27 CRON Notice System time changed to 9/10/2017 17:32:27 (UTC), time difference is +0:00:01
177 2017-09-10 19:31:14 CRON Notice System time changed to 9/10/2017 17:31:14 (UTC), time difference is +0:00:01
178 2017-09-10 17:22:02 CRON Notice System time changed to 9/10/2017 15:22:02 (UTC), time difference is +0:00:01
179 2017-09-10 16:36:31 CRON Notice System time changed to 9/10/2017 14:36:31 (UTC), time difference is +0:00:01
180 2017-09-10 15:57:18 CRON Notice System time changed to 9/10/2017 13:57:18 (UTC), time difference is +0:00:01
181 2017-09-10 14:55:58 CRON Notice System time changed to 9/10/2017 12:55:58 (UTC), time difference is +0:00:01
182 2017-09-10 14:54:48 CRON Notice System time changed to 9/10/2017 12:54:48 (UTC), time difference is +0:00:01
183 2017-09-10 14:22:57 CRON Notice System time changed to 9/10/2017 12:22:57 (UTC), time difference is +0:00:01
184 2017-09-10 12:56:33 CRON Notice System time changed to 9/10/2017 10:56:33 (UTC), time difference is +0:00:01
185 2017-09-10 12:10:23 CRON Notice System time changed to 9/10/2017 10:10:23 (UTC), time difference is +0:00:01
186 2017-09-10 12:09:28 CRON Notice System time changed to 9/10/2017 10:09:28 (UTC), time difference is +0:00:01
Code: Alles auswählen
Idx. Time Source Level Message
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11 2017-01-29 17:11:44 CRON Notice System time changed to 1/29/2017 16:11:44 (UTC), time difference is +0:00:01
22 2017-01-29 13:04:52 CRON Notice System time changed to 1/29/2017 12:04:52 (UTC), time difference is +0:00:01
36 2017-01-29 10:51:41 CRON Notice System time changed to 1/29/2017 9:51:41 (UTC), time difference is +0:00:01
41 2017-01-29 09:00:23 CRON Notice System time changed to 1/29/2017 8:00:23 (UTC), time difference is +0:00:01
42 2017-01-29 08:59:10 CRON Notice System time changed to 1/29/2017 7:59:10 (UTC), time difference is -0:00:01
48 2017-01-29 08:22:58 CRON Notice System time changed to 1/29/2017 7:22:58 (UTC), time difference is +0:00:01
55 2017-01-29 07:33:12 CRON Notice System time changed to 1/29/2017 6:33:12 (UTC), time difference is +0:00:01
56 2017-01-29 05:19:32 CRON Notice System time changed to 1/29/2017 4:19:32 (UTC), time difference is +0:00:01
57 2017-01-29 05:18:52 CRON Notice System time changed to 1/29/2017 4:18:52 (UTC), time difference is +0:00:01
58 2017-01-29 04:40:02 CRON Notice System time changed to 1/29/2017 3:40:02 (UTC), time difference is +0:00:01
59 2017-01-29 04:39:53 CRON Notice System time changed to 1/29/2017 3:39:53 (UTC), time difference is +0:00:01
60 2017-01-29 04:38:57 CRON Notice System time changed to 1/29/2017 3:38:57 (UTC), time difference is +0:00:01
61 2017-01-29 03:53:39 CRON Notice System time changed to 1/29/2017 2:53:39 (UTC), time difference is +0:00:01
90 2017-01-29 02:11:59 CRON Notice System time changed to 1/29/2017 1:11:59 (UTC), time difference is +0:00:01
91 2017-01-29 02:11:05 CRON Notice System time changed to 1/29/2017 1:11:05 (UTC), time difference is +0:00:01
222 2017-01-28 23:54:21 CRON Notice System time changed to 1/28/2017 22:54:21 (UTC), time difference is +0:00:01
370 2017-01-28 20:06:35 CRON Notice System time changed to 1/28/2017 19:06:35 (UTC), time difference is +0:00:01
371 2017-01-28 20:05:30 CRON Notice System time changed to 1/28/2017 19:05:30 (UTC), time difference is +0:00:01
414 2017-01-28 19:31:45 CRON Notice System time changed to 1/28/2017 18:31:45 (UTC), time difference is +0:00:01
454 2017-01-28 18:41:34 CRON Notice System time changed to 1/28/2017 17:41:34 (UTC), time difference is +0:00:01
528 2017-01-28 17:18:28 CRON Notice System time changed to 1/28/2017 16:18:28 (UTC), time difference is +0:00:01
560 2017-01-28 16:31:27 CRON Notice System time changed to 1/28/2017 15:31:27 (UTC), time difference is +0:00:01
577 2017-01-28 14:08:38 CRON Notice System time changed to 1/28/2017 13:08:38 (UTC), time difference is +0:00:01
578 2017-01-28 14:08:11 CRON Notice System time changed to 1/28/2017 13:08:11 (UTC), time difference is +0:00:01
579 2017-01-28 14:07:34 CRON Notice System time changed to 1/28/2017 13:07:34 (UTC), time difference is +0:00:01
581 2017-01-28 13:34:23 CRON Notice System time changed to 1/28/2017 12:34:23 (UTC), time difference is +0:00:01
582 2017-01-28 13:33:50 CRON Notice System time changed to 1/28/2017 12:33:50 (UTC), time difference is +0:00:01
589 2017-01-28 13:33:28 CRON Notice System time changed to 1/28/2017 12:33:28 (UTC), time difference is +0:00:01
603 2017-01-28 11:37:20 CRON Notice System time changed to 1/28/2017 10:37:20 (UTC), time difference is +0:00:01
604 2017-01-28 11:36:27 CRON Notice System time changed to 1/28/2017 10:36:27 (UTC), time difference is +0:00:01
605 2017-01-28 10:49:34 CRON Notice System time changed to 1/28/2017 9:49:34 (UTC), time difference is +0:00:01
611 2017-01-28 09:59:15 CRON Notice System time changed to 1/28/2017 8:59:15 (UTC), time difference is +0:00:01
619 2017-01-28 09:00:32 CRON Notice System time changed to 1/28/2017 8:00:32 (UTC), time difference is +0:00:01
620 2017-01-28 08:59:53 CRON Notice System time changed to 1/28/2017 7:59:53 (UTC), time difference is +0:00:01
634 2017-01-28 08:23:07 CRON Notice System time changed to 1/28/2017 7:23:07 (UTC), time difference is +0:00:01
666 2017-01-28 04:45:00 CRON Notice System time changed to 1/28/2017 3:45:00 (UTC), time difference is +0:00:01
667 2017-01-28 04:44:45 CRON Notice System time changed to 1/28/2017 3:44:45 (UTC), time difference is +0:00:01
668 2017-01-28 04:44:16 CRON Notice System time changed to 1/28/2017 3:44:16 (UTC), time difference is -0:00:01
710 2017-01-28 03:56:21 CRON Notice System time changed to 1/28/2017 2:56:21 (UTC), time difference is +0:00:02
753 2017-01-28 03:47:30 CRON Notice System time changed to 1/28/2017 2:47:30 (UTC), time difference is +0:00:11
772 2017-01-28 03:45:21 CRON Notice System time changed to 1/28/2017 2:45:21 (UTC), time difference is -0:00:01
788 2017-01-28 00:29:23 CRON Notice System time changed to 1/27/2017 23:29:23 (UTC), time difference is -0:00:01
983 2017-01-27 21:22:02 CRON Notice System time changed to 1/27/2017 20:22:02 (UTC), time difference is -0:00:01
1054 2017-01-27 20:33:57 CRON Notice System time changed to 1/27/2017 19:33:57 (UTC), time difference is +0:00:02
1207 2017-01-27 17:54:57 CRON Notice System time changed to 1/27/2017 16:54:57 (UTC), time difference is -0:00:01
1306 2017-01-27 15:17:25 CRON Notice System time changed to 1/27/2017 14:17:25 (UTC), time difference is -0:00:01
1451 2017-01-27 12:06:12 CRON Notice System time changed to 1/27/2017 11:06:12 (UTC), time difference is -0:00:01
1587 2017-01-27 08:59:34 CRON Notice System time changed to 1/27/2017 7:59:34 (UTC), time difference is -0:00:01
1676 2017-01-27 05:45:21 CRON Notice System time changed to 1/27/2017 4:45:21 (UTC), time difference is -0:00:01
1677 2017-01-27 02:35:55 CRON Notice System time changed to 1/27/2017 1:35:55 (UTC), time difference is -0:00:01
1687 2017-01-27 00:07:09 CRON Notice System time changed to 1/26/2017 23:07:09 (UTC), time difference is -0:00:01
1954 2017-01-26 19:59:05 CRON Notice System time changed to 1/26/2017 18:59:05 (UTC), time difference is +0:00:01
Jirka