Konfiguracja NTP na urządzeniach Cisco, na samym dole jest tabelka ze strefami czasowymi.
Switch catalyst 2960
Config
#clock timezone CEST +2 // ustawiamy strefę czasowej dla Polski
#ntp server 10.XxX.YyY.101 prefer // Ustawiamy serwer czasu NTP
sprawdzenie:
#show ntp status Clock is synchronized, stratum 2, reference is 10.XxX.YyY.101 nominal freq is 286.1023 Hz, actual freq is 286.0868 Hz, precision is 2**21 ntp uptime is 334718600 (1/100 of seconds), resolution is 3496 reference time is D8F31637.DE5891AD (12:13:11.868 CEST Tue May 5 2015) clock offset is -1.9457 msec, root delay is 17.10 msec root dispersion is 19.63 msec, peer dispersion is 0.12 msec loopfilter state is 'CTRL' (Normal Controlled Loop), drift is 0.000053953 s/s system poll interval is 512, last update was 1019 sec ago.
#show clock detail 18:34:57.719 cest Tue May 5 2015 Time source is NTP
Nexus
Config
# ntp server 10.XxX.YyY.101 prefer use-vrf management // ustawiamy serwer NTP oraz jaki vrf ma zostać użyty do komunikacji z NTP # clock timezone cest 2 0 //Ustawiamy strefę czasową dla Polski
sprawdzenie
# show ntp peer-status Total peers : 2 * - selected for sync, + - peer mode(active), - - peer mode(passive), = - polled in client mode remote local st poll reach delay vrf ------------------------------------------------------------------------------- *10.XxX.YyY.101 0.0.0.0 1 16 377 0.00067 management # show ntp peers -------------------------------------------------- Peer IP Address Serv/Peer -------------------------------------------------- 10.XxX.YyY.101 Server (configured)
Cisco Cat 4500-x
Config
#ntp server vrf mgmtVrf 10.XxX.YyY.101 prefer
#clock timezone cest 2
Sprawdzenie:
#show clock detail 18:43:07.566 cest Tue May 5 2015 Time source is NTP
#show ntp associations address ref clock st when poll reach delay offset disp *~10.XxX.YyY.101 .PPSa. 1 621 1024 377 1.852 3.391 1.074 * sys.peer, # selected, + candidate, - outlyer, x falseticker, ~ configured
#show ntp status Clock is synchronized, stratum 2, reference is 10.XxX.YyY.101 nominal freq is 250.0000 Hz, actual freq is 249.9999 Hz, precision is 2**10 ntp uptime is 2146500 (1/100 of seconds), resolution is 4016 reference time is D8F36F35.5F3B6560 (18:32:53.372 cest Tue May 5 2015) clock offset is 3.3910 msec, root delay is 1.85 msec root dispersion is 15.82 msec, peer dispersion is 1.07 msec loopfilter state is 'CTRL' (Normal Controlled Loop), drift is 0.000000160 s/s system poll interval is 1024, last update was 626 sec ago.
Cisco ASA
Config:
#ntp server 10.XxX.YyY.101 source vlan242 prefer // gdzie vlan242 to interfejs którym ma odbywać się komunikacja z NTP.
#clock timezone CEST 1 #clock summer-time CEDT recurring last Sun Mar 2:00 last Sun Oct 3:00
# show ntp status Clock is synchronized, stratum 2, reference is 10.XxX.YyY.101 nominal freq is 99.9984 Hz, actual freq is 99.9889 Hz, precision is 2**6 reference time is d8f37cb6.5e32efba (19:30:30.367 CEDT Tue May 5 2015) clock offset is 14.7114 msec, root delay is 0.53 msec root dispersion is 32.18 msec, peer dispersion is 17.18 msec t# show ntp associations address ref clock st when poll reach delay offset disp *~10.176.22.101 .PPSa. 1 748 1024 377 0.5 14.71 17.2 * master (synced), # master (unsynced), + selected, - candidate, ~ configured
Strefy czasowe Cisco
| Common Time Zone Acronyms | |
| Acronym | Time Zone Name and UTC Offset |
| Europe | |
| GMT | Greenwich Mean Time, as UTC |
| BST | British Summer Time, as UTC + 1 hour |
| IST | Irish Summer Time, as UTC + 1 hour |
| WET | Western Europe Time, as UTC |
| WEST | Western Europe Summer Time, as UTC + 1 hour |
| CET | Central Europe Time, as UTC + 1 |
| CEST | Central Europe Summer Time, as UTC + 2 |
| EET | Eastern Europe Time, as UTC + 2 |
| EEST | Eastern Europe Summer Time, as UTC + 3 |
| MSK | Moscow Time, as UTC + 3 |
| MSD | Moscow Summer Time, as UTC + 4 |
| United States and Canada | |
| AST | Atlantic Standard Time, as UTC -4 hours |
| ADT | Atlantic Daylight Time, as UTC -3 hours |
| ET | Eastern Time, either as EST or EDT, depending on place and time of year |
| EST | Eastern Standard Time, as UTC -5 hours |
| EDT | Eastern Daylight Saving Time, as UTC -4 hours |
| CT | Central Time, either as CST or CDT, depending on place and time of year |
| CST | Central Standard Time, as UTC -6 hours |
| CDT | Central Daylight Saving Time, as UTC -5 hours |
| MT | Mountain Time, either as MST or MDT, depending on place and time of year |
| MST | Mountain Standard Time, as UTC -7 hours |
| MDT | Mountain Daylight Saving Time, as UTC -6 hours |
| PT | Pacific Time, either as PST or PDT, depending on place and time of year |
| PST | Pacific Standard Time, as UTC -8 hours |
| PDT | Pacific Daylight Saving Time, as UTC -7 hours |
| AKST | Alaska Standard Time, as UTC -9 hours |
| AKDT | Alaska Standard Daylight Saving Time, as UTC -8 hours |
| HST | Hawaiian Standard Time, as UTC -10 hours |
| Australia | |
| WST | Western Standard Time, as UTC + 8 hours |
| CST | Central Standard Time, as UTC + 9.5 hours |
| EST | Eastern Standard/Summer Time, as UTC + 10 hours (+11 hours during summer time) |
