{"id":112,"date":"2015-05-05T18:15:26","date_gmt":"2015-05-05T18:15:26","guid":{"rendered":"http:\/\/www.safekom.pl\/blog\/?p=112"},"modified":"2015-05-05T18:15:26","modified_gmt":"2015-05-05T18:15:26","slug":"konfiguracja-synchronizacji-czasu-z-ntp-na-urzadzeniach-cisco","status":"publish","type":"post","link":"https:\/\/www.safekom.pl\/blog\/cisco\/konfiguracja-synchronizacji-czasu-z-ntp-na-urzadzeniach-cisco\/","title":{"rendered":"Konfiguracja synchronizacji czasu z NTP na urz\u0105dzeniach Cisco"},"content":{"rendered":"

Konfiguracja NTP na urz\u0105dzeniach Cisco, na samym dole jest tabelka ze strefami czasowymi.<\/p>\n

Switch catalyst 2960<\/strong><\/p>\n

Config<\/p>\n

#clock timezone CEST +2 \/\/ ustawiamy stref\u0119 czasowej dla Polski<\/pre>\n
#ntp server 10.XxX.YyY.101 prefer \/\/ Ustawiamy serwer czasu NTP<\/pre>\n
sprawdzenie:<\/p>\n
 #show ntp status\r\n Clock is synchronized, stratum 2, reference is 10.XxX.YyY.101\r\n nominal freq is 286.1023 Hz, actual freq is 286.0868 Hz, precision is 2**21\r\n ntp uptime is 334718600 (1\/100 of seconds), resolution is 3496\r\n reference time is D8F31637.DE5891AD (12:13:11.868 CEST Tue May 5 2015)\r\n clock offset is -1.9457 msec, root delay is 17.10 msec\r\n root dispersion is 19.63 msec, peer dispersion is 0.12 msec\r\n loopfilter state is 'CTRL' (Normal Controlled Loop), drift is 0.000053953 s\/s\r\n system poll interval is 512, last update was 1019 sec ago.\r\n<\/pre>\n
#show clock detail \r\n18:34:57.719 cest Tue May 5 2015 \r\nTime source is NTP<\/pre>\n
 <\/p>\n
Nexus<\/strong><\/p>\n
Config<\/p>\n
# ntp server 10.XxX.YyY.101 prefer use-vrf management \/\/ ustawiamy serwer NTP oraz jaki vrf ma zosta\u0107 u\u017cyty do komunikacji z NTP\r\n# clock timezone cest 2 0 \/\/Ustawiamy stref\u0119 czasow\u0105 dla Polski<\/pre>\n
 <\/p>\n
sprawdzenie<\/p>\n
# show ntp peer-status\r\n Total peers : 2\r\n * - selected for sync, + - peer mode(active),\r\n - - peer mode(passive), = - polled in client mode\r\n remote local st poll reach delay vrf\r\n -------------------------------------------------------------------------------\r\n *10.XxX.YyY.101 0.0.0.0 1 16 377 0.00067 management\r\n# show ntp peers\r\n --------------------------------------------------\r\n Peer IP Address Serv\/Peer\r\n --------------------------------------------------\r\n10.XxX.YyY.101 Server (configured)\r\n\r\n<\/pre>\n
Cisco Cat 4500-x<\/strong><\/p>\n
Config<\/p>\n
#ntp server vrf mgmtVrf 10.XxX.YyY.101 prefer<\/pre>\n
#clock timezone cest 2<\/pre>\n
Sprawdzenie:<\/p>\n
#show clock detail\r\n18:43:07.566 cest Tue May 5 2015\r\nTime source is NTP<\/pre>\n
#show ntp associations\r\naddress          ref clock st when poll reach delay offset disp\r\n*~10.XxX.YyY.101 .PPSa.     1  621 1024 377   1.852 3.391  1.074\r\n * sys.peer, # selected, + candidate, - outlyer, x falseticker, ~ configured<\/pre>\n
#show ntp status\r\nClock is synchronized, stratum 2, reference is 10.XxX.YyY.101\r\nnominal freq is 250.0000 Hz, actual freq is 249.9999 Hz, precision is 2**10\r\nntp uptime is 2146500 (1\/100 of seconds), resolution is 4016\r\nreference time is D8F36F35.5F3B6560 (18:32:53.372 cest Tue May 5 2015)\r\nclock offset is 3.3910 msec, root delay is 1.85 msec\r\nroot dispersion is 15.82 msec, peer dispersion is 1.07 msec\r\nloopfilter state is 'CTRL' (Normal Controlled Loop), drift is 0.000000160 s\/s\r\nsystem poll interval is 1024, last update was 626 sec ago.<\/pre>\n
Cisco ASA<\/strong><\/p>\n
Config:<\/p>\n
#ntp server 10.XxX.YyY.101 source vlan242 prefer \/\/ gdzie vlan242 to interfejs kt\u00f3rym  ma odbywa\u0107 si\u0119 komunikacja z NTP.<\/pre>\n
#clock timezone CEST 1\r\n#clock summer-time CEDT recurring last Sun Mar 2:00 last Sun Oct 3:00<\/pre>\n
# show ntp status\r\nClock is synchronized, stratum 2, reference is 10.XxX.YyY.101\r\nnominal freq is 99.9984 Hz, actual freq is 99.9889 Hz, precision is 2**6\r\nreference time is d8f37cb6.5e32efba (19:30:30.367 CEDT Tue May 5 2015)\r\nclock offset is 14.7114 msec, root delay is 0.53 msec\r\nroot dispersion is 32.18 msec, peer dispersion is 17.18 msec\r\nt# show ntp associations\r\n address              ref clock st  when poll reach delay offset disp\r\n*~10.176.22.101      .PPSa.     1   748  1024 377   0.5   14.71  17.2\r\n * master (synced), # master (unsynced), + selected, - candidate, ~ configured<\/pre>\n
 <\/p>\n
Strefy czasowe Cisco<\/strong><\/p>\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
Common Time Zone Acronyms\u00a0<\/strong><\/td>\n<\/tr>\n
Acronym<\/strong><\/td>\nTime Zone Name and UTC Offset<\/strong><\/td>\n<\/tr>\n
Europe<\/strong><\/td>\n<\/td>\n<\/tr>\n
GMT<\/td>\nGreenwich Mean Time, as UTC<\/td>\n<\/tr>\n
BST<\/td>\nBritish Summer Time, as UTC + 1 hour<\/td>\n<\/tr>\n
IST<\/td>\nIrish Summer Time, as UTC + 1 hour<\/td>\n<\/tr>\n
WET<\/td>\nWestern Europe Time, as UTC<\/td>\n<\/tr>\n
WEST<\/td>\nWestern Europe Summer Time, as UTC + 1 hour<\/td>\n<\/tr>\n
CET<\/td>\nCentral Europe Time, as UTC + 1<\/td>\n<\/tr>\n
CEST<\/td>\nCentral Europe Summer Time, as UTC + 2<\/td>\n<\/tr>\n
EET<\/td>\nEastern Europe Time, as UTC + 2<\/td>\n<\/tr>\n
EEST<\/td>\nEastern Europe Summer Time, as UTC + 3<\/td>\n<\/tr>\n
MSK<\/td>\nMoscow Time, as UTC + 3<\/td>\n<\/tr>\n
MSD<\/td>\nMoscow Summer Time, as UTC + 4<\/td>\n<\/tr>\n
United States and Canada<\/strong><\/td>\n<\/td>\n<\/tr>\n
AST<\/td>\nAtlantic Standard Time, as UTC -4 hours<\/td>\n<\/tr>\n
ADT<\/td>\nAtlantic Daylight Time, as UTC -3 hours<\/td>\n<\/tr>\n
ET<\/td>\nEastern Time, either as EST or EDT, depending on place and time of year<\/td>\n<\/tr>\n
EST<\/td>\nEastern Standard Time, as UTC -5 hours<\/td>\n<\/tr>\n
EDT<\/td>\nEastern Daylight Saving Time, as UTC -4 hours<\/td>\n<\/tr>\n
CT<\/td>\nCentral Time, either as CST or CDT, depending on place and time of year<\/td>\n<\/tr>\n
CST<\/td>\nCentral Standard Time, as UTC -6 hours<\/td>\n<\/tr>\n
CDT<\/td>\nCentral Daylight Saving Time, as UTC -5 hours<\/td>\n<\/tr>\n
MT<\/td>\nMountain Time, either as MST or MDT, depending on place and time of year<\/td>\n<\/tr>\n
MST<\/td>\nMountain Standard Time, as UTC -7 hours<\/td>\n<\/tr>\n
MDT<\/td>\nMountain Daylight Saving Time, as UTC -6 hours<\/td>\n<\/tr>\n
PT<\/td>\nPacific Time, either as PST or PDT, depending on place and time of year<\/td>\n<\/tr>\n
PST<\/td>\nPacific Standard Time, as UTC -8 hours<\/td>\n<\/tr>\n
PDT<\/td>\nPacific Daylight Saving Time, as UTC -7 hours<\/td>\n<\/tr>\n
AKST<\/strong><\/td>\nAlaska Standard Time, as UTC -9 hours<\/td>\n<\/tr>\n
AKDT<\/strong><\/td>\nAlaska Standard Daylight Saving Time, as UTC
\n-8 hours<\/td>\n<\/tr>\n
HST<\/strong><\/td>\nHawaiian Standard Time, as UTC -10 hours<\/td>\n<\/tr>\n
Australia<\/strong><\/td>\n<\/td>\n<\/tr>\n
WST<\/td>\nWestern Standard Time, as UTC + 8 hours<\/td>\n<\/tr>\n
CST<\/td>\nCentral Standard Time, as UTC + 9.5 hours<\/td>\n<\/tr>\n
EST<\/td>\nEastern Standard\/Summer Time, as UTC + 10 hours (+11 hours during summer time)<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n
 <\/p>\n","protected":false},"excerpt":{"rendered":"
Konfiguracja NTP na urz\u0105dzeniach Cisco, na samym dole jest tabelka ze strefami czasowymi. Switch catalyst 2960 Config #clock timezone CEST +2 \/\/ ustawiamy stref\u0119 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 […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_publicize_message":"","jetpack_publicize_feature_enabled":true,"jetpack_social_post_already_shared":false,"jetpack_social_options":{"image_generator_settings":{"template":"highway","default_image_id":0,"font":"","enabled":false},"version":2},"jetpack_post_was_ever_published":false},"categories":[4],"tags":[41,13,43,42,40,17],"class_list":["post-112","post","type-post","status-publish","format-standard","hentry","category-cisco","tag-asa","tag-cisco","tag-clock","tag-nexues","tag-ntp","tag-switch"],"yoast_head":"\nKonfiguracja synchronizacji czasu z NTP na urz\u0105dzeniach Cisco - SafeKom Blog<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.safekom.pl\/blog\/cisco\/konfiguracja-synchronizacji-czasu-z-ntp-na-urzadzeniach-cisco\/\" \/>\n<meta property=\"og:locale\" content=\"pl_PL\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Konfiguracja synchronizacji czasu z NTP na urz\u0105dzeniach Cisco - SafeKom Blog\" \/>\n<meta property=\"og:description\" content=\"Konfiguracja NTP na urz\u0105dzeniach Cisco, na samym dole jest tabelka ze strefami czasowymi. Switch catalyst 2960 Config #clock timezone CEST +2 \/\/ ustawiamy stref\u0119 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 […]\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.safekom.pl\/blog\/cisco\/konfiguracja-synchronizacji-czasu-z-ntp-na-urzadzeniach-cisco\/\" \/>\n<meta property=\"og:site_name\" content=\"SafeKom Blog\" \/>\n<meta property=\"article:publisher\" content=\"https:\/\/www.facebook.com\/safekompl\" \/>\n<meta property=\"article:published_time\" content=\"2015-05-05T18:15:26+00:00\" \/>\n<meta name=\"author\" content=\"Micha\u0142 Iwa\u0144czuk\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:creator\" content=\"@MIwaczuk\" \/>\n<meta name=\"twitter:site\" content=\"@MIwaczuk\" \/>\n<meta name=\"twitter:label1\" content=\"Napisane przez\" \/>\n\t<meta name=\"twitter:data1\" content=\"Micha\u0142 Iwa\u0144czuk\" \/>\n\t<meta name=\"twitter:label2\" content=\"Szacowany czas czytania\" \/>\n\t<meta name=\"twitter:data2\" content=\"4 minuty\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\\\/\\\/www.safekom.pl\\\/blog\\\/cisco\\\/konfiguracja-synchronizacji-czasu-z-ntp-na-urzadzeniach-cisco\\\/#article\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/www.safekom.pl\\\/blog\\\/cisco\\\/konfiguracja-synchronizacji-czasu-z-ntp-na-urzadzeniach-cisco\\\/\"},\"author\":{\"name\":\"Micha\u0142 Iwa\u0144czuk\",\"@id\":\"https:\\\/\\\/www.safekom.pl\\\/blog\\\/#\\\/schema\\\/person\\\/fd4cc931b624af4b7353d36d92ba7181\"},\"headline\":\"Konfiguracja synchronizacji czasu z NTP na urz\u0105dzeniach Cisco\",\"datePublished\":\"2015-05-05T18:15:26+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\\\/\\\/www.safekom.pl\\\/blog\\\/cisco\\\/konfiguracja-synchronizacji-czasu-z-ntp-na-urzadzeniach-cisco\\\/\"},\"wordCount\":329,\"commentCount\":0,\"publisher\":{\"@id\":\"https:\\\/\\\/www.safekom.pl\\\/blog\\\/#organization\"},\"keywords\":[\"asa\",\"cisco\",\"clock\",\"nexues\",\"NTP\",\"switch\"],\"articleSection\":[\"Cisco\"],\"inLanguage\":\"pl-PL\",\"potentialAction\":[{\"@type\":\"CommentAction\",\"name\":\"Comment\",\"target\":[\"https:\\\/\\\/www.safekom.pl\\\/blog\\\/cisco\\\/konfiguracja-synchronizacji-czasu-z-ntp-na-urzadzeniach-cisco\\\/#respond\"]}]},{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/www.safekom.pl\\\/blog\\\/cisco\\\/konfiguracja-synchronizacji-czasu-z-ntp-na-urzadzeniach-cisco\\\/\",\"url\":\"https:\\\/\\\/www.safekom.pl\\\/blog\\\/cisco\\\/konfiguracja-synchronizacji-czasu-z-ntp-na-urzadzeniach-cisco\\\/\",\"name\":\"Konfiguracja synchronizacji czasu z NTP na urz\u0105dzeniach Cisco - 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