{"id":582,"date":"2018-05-16T23:39:47","date_gmt":"2018-05-16T22:39:47","guid":{"rendered":"https:\/\/ketandesai.co.uk\/?p=582"},"modified":"2026-03-20T22:14:58","modified_gmt":"2026-03-20T22:14:58","slug":"ntp-on-hp-aruba-switches","status":"publish","type":"post","link":"https:\/\/ketandesai.co.uk\/index.php\/2018\/05\/16\/ntp-on-hp-aruba-switches\/","title":{"rendered":"NTP on HP Aruba Switches"},"content":{"rendered":"<p>Using time synchronization ensures a uniform time among interoperating devices. This helps you to manage and troubleshoot switch operation by attaching meaningful time data to event and error messages<\/p>\n<p>With HP changing the way they set up NTP on switches this is an easy guide to set it up on CLI. setting up the NTP (network Time Protocol) is very simple<\/p>\n<h2>Setup<\/h2>\n<ul>\n<li>Setup the IP Address and switch information i.e. host name on the first switch<\/li>\n<li>open The CLI interface using SSH or the Serial cable<\/li>\n<li>Go into configuration mode<\/li>\n<\/ul>\n<pre class=\"lang:sh decode:true\">(config)# configure<\/pre>\n<ul>\n<li>Setup Daylight saving rules because we are in the uk we choose&nbsp;western-europe<\/li>\n<\/ul>\n<pre class=\"lang:sh decode:true\">(config)# time daylight-time-rule western-europe<\/pre>\n<ul>\n<li>Configuring NTP Time Synchronisation.<\/li>\n<li>Set the timesync setting to ntp.<\/li>\n<\/ul>\n<pre class=\"lang:sh decode:true \">(config)# timesync ntp<\/pre>\n<ul>\n<li>set the NTP mode to unicast:<\/li>\n<\/ul>\n<pre class=\"lang:sh decode:true \">(config)# ntp unicast<\/pre>\n<ul>\n<li>Then we&#8217;ll add the settings for which server to query for time.<\/li>\n<\/ul>\n<pre class=\"lang:sh decode:true \">(config)# ntp server 192.168.0.10 ibrust<\/pre>\n<ul>\n<li>enable the NTP service<\/li>\n<\/ul>\n<pre class=\"lang:sh decode:true\">(config)# ntp enable<\/pre>\n<p>Check your settings so that they actually worked:<\/p>\n<pre class=\"lang:sh decode:true\">(config)# show time\nWed May 17 15:19:50 2018\n<\/pre>\n<pre class=\"lang:sh decode:true\">(config)# show ntp status\nNTP Status : Enabled NTP Mode : Unicast \nSynchronization Status : Synchronized Peer Dispersion : 0.00000 sec \nStratum Number : 13 Leap Direction : 0 \nReference Assoc ID : 0 Clock Offset : -0.97005 sec \nReference ID : 192.168.20.10 Root Delay : 0.00185 sec \nPrecision : 2**-18 Root Dispersion : 1.38523 sec \nNTP Up Time : 0d 00h 22m Time Resolution : 1494 nsec \nDrift : 0.00000 sec\/sec\n\nSystem Time : Wed May 17 15:19:50 2018 \nReference Time : Wed May 17 15:19:50 2018<\/pre>\n<p>HP Management guide can be found <a href=\"https:\/\/support.hpe.com\/hpsc\/doc\/public\/display?docId=a00038746en_us\">here<\/a><\/p>\n<p>[amazon_link asins=&#8217;B01JMEBDRI&#8217; template=&#8217;ProductAd&#8217; store=&#8217;kdweb-21&#8242; marketplace=&#8217;UK&#8217; link_id=&#8217;a8f749d1-5959-11e8-9eef-d9305b63e5f8&#8242;]<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Using time synchronization ensures a uniform time among interoperating devices. This helps you to manage and troubleshoot switch operation by attaching meaningful time data to event and error messages With HP changing the way they set up NTP on switches this is an easy guide to set it up on CLI. setting up the NTP [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":995,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_jetpack_memberships_contains_paid_content":false,"footnotes":""},"categories":[122,126],"tags":[121,135,136,137,124],"class_list":["post-582","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-networking","category-switchs","tag-aruba","tag-hp","tag-networking","tag-ntp","tag-switch"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.4 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>NTP on HP Aruba Switches - Ketan Desai<\/title>\n<meta name=\"description\" content=\"NTP Setup on HP Aruba Switch\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/ketandesai.co.uk\/index.php\/2018\/05\/16\/ntp-on-hp-aruba-switches\/\" \/>\n<meta property=\"og:locale\" content=\"en_GB\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"NTP on HP Aruba Switches - 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