{"id":611,"date":"2010-04-01T14:01:16","date_gmt":"2010-04-01T13:01:16","guid":{"rendered":"http:\/\/mccltd.net\/blog\/?p=611"},"modified":"2010-04-26T17:11:42","modified_gmt":"2010-04-26T16:11:42","slug":"cisco-ios-version-15","status":"publish","type":"post","link":"http:\/\/darenmatthews.com\/blog\/?p=611","title":{"rendered":"Cisco IOS version 15.0"},"content":{"rendered":"<p>Cisco has announced a major change in the IOS versions, from the latest version 12.4 up to version 15.0<\/p>\n<p>This is a major change and introduces some key changes, particularly to the way in which additional features are now &#8220;activated&#8221; using a licence key.<!--more--><\/p>\n<p>The version 15 train also introduces a more &#8220;simplified&#8221; version numbering system:\u00a0 (see <a href=\"http:\/\/darenmatthews.com\/blog\/?p=860\">this post<\/a> for the previous IOS numbering system)<\/p>\n<p><a rel=\"attachment wp-att-612\" href=\"http:\/\/darenmatthews.com\/blog\/?attachment_id=612\"><\/a><a rel=\"attachment wp-att-612\" href=\"http:\/\/darenmatthews.com\/blog\/?attachment_id=612\"><img loading=\"lazy\" class=\"size-full wp-image-612 alignnone\" title=\"IOS-15-release-train\" src=\"http:\/\/darenmatthews.com\/blog\/wp-content\/uploads\/2010\/04\/IOS-15-release-train.jpg\" alt=\"IOS-15-release-train\" width=\"348\" height=\"127\" srcset=\"http:\/\/darenmatthews.com\/blog\/wp-content\/uploads\/2010\/04\/IOS-15-release-train.jpg 348w, http:\/\/darenmatthews.com\/blog\/wp-content\/uploads\/2010\/04\/IOS-15-release-train-300x109.jpg 300w\" sizes=\"(max-width: 348px) 100vw, 348px\" \/><\/a><\/p>\n<p><span> <\/span><\/p>\n<p style=\"font-size: 10pt; font-style: normal; font-variant: normal; font-weight: bold; margin-left: 0pt; margin-right: 0pt; text-align: left; text-decoration: none; text-indent: 0pt; text-transform: none;\">Support Lifecycle and  Milestones for Cisco IOS Software Release 15.0(1)M<\/p>\n<p><a name=\"wp9000135\"><\/a><\/p>\n<div style=\"font-style: normal; font-variant: normal; font-weight: bold; margin: 0pt; text-decoration: none; text-indent: 0pt; text-transform: none;\"><span style=\"font-family: Arial;\"><strong>Q.<\/strong><\/span> What is  the support lifecycle and milestones for Cisco IOS Software Release  15.0(1)M?<\/div>\n<p><a name=\"wp9000136\"><\/a><\/p>\n<div style=\"font-style: normal; font-variant: normal; font-weight: normal; margin: 0pt 0pt 7pt 18pt; text-decoration: none; text-indent: -18pt; text-transform: none;\"><span style=\"font-family: Arial;\"><strong>A.<\/strong><\/span> Release 15.0(1)M is an Extended Maintenance release. The support  lifecycle for Release 15.0(1)M is shown here:<\/div>\n<div style=\"font-style: normal; font-variant: normal; font-weight: normal; margin: 0pt 0pt 7pt 18pt; text-decoration: none; text-indent: -18pt; text-transform: none;\"><a rel=\"attachment wp-att-613\" href=\"http:\/\/darenmatthews.com\/blog\/?attachment_id=613\"><img loading=\"lazy\" class=\"alignnone size-full wp-image-613\" title=\"IOS-15-life-cycle\" src=\"http:\/\/darenmatthews.com\/blog\/wp-content\/uploads\/2010\/04\/IOS-15-life-cycle.jpg\" alt=\"IOS-15-life-cycle\" width=\"430\" height=\"198\" srcset=\"http:\/\/darenmatthews.com\/blog\/wp-content\/uploads\/2010\/04\/IOS-15-life-cycle.jpg 430w, http:\/\/darenmatthews.com\/blog\/wp-content\/uploads\/2010\/04\/IOS-15-life-cycle-300x138.jpg 300w\" sizes=\"(max-width: 430px) 100vw, 430px\" \/><\/a><\/div>\n<p><span> <\/span><\/p>\n<div style=\"font-style: normal; font-variant: normal; font-weight: bold; margin: 0pt; text-decoration: none; text-indent: 0pt; text-transform: none;\"><span style=\"font-family: Arial;\"><strong>Q.<\/strong><\/span> What are the benefits of Release 15 M and T  over Releases 12.4 Mainline and 12.4T?<\/div>\n<p><a name=\"wp9000022\"><\/a><\/p>\n<div style=\"font-style: normal; font-variant: normal; font-weight: normal; margin: 0pt 0pt 7pt 18pt; text-decoration: none; text-indent: -18pt; text-transform: none;\"><span style=\"font-family: Arial;\"><strong>A.<\/strong><\/span> Release 15 M and T provides more predictable new feature release and  rebuild schedules, proactive individual M and T release support  policies, enhanced release numbering, and clearer software deployment  and migration\u00a0guidelines.<\/div>\n<p><a name=\"wp9000023\"><\/a><\/p>\n<p style=\"font-style: normal; font-variant: normal; font-weight: normal; margin-bottom: 6pt; margin-right: 0pt; text-decoration: none; text-transform: none;\">Key highlights of Release  15 M and T, illustrated in Figure 1 below, include the following:<\/p>\n<p><a name=\"wp9000024\"><\/a><\/p>\n<p style=\"font-style: normal; font-variant: normal; font-weight: normal; margin-bottom: 3pt; margin-right: 0pt; margin-top: 0pt; text-decoration: none; text-transform: none;\">\u2022  Feature inheritance from Cisco IOS Software Releases 12.4T and 12.4  Mainline*<\/p>\n<p><a name=\"wp9000025\"><\/a><\/p>\n<p style=\"font-style: normal; font-variant: normal; font-weight: normal; margin-bottom: 3pt; margin-right: 0pt; margin-top: 0pt; text-decoration: none; text-transform: none;\">\u2022 M  (extended maintenance) releases every 20 months &#8211; allows customers to  qualify\/deploy\/remain on releases longer with active bug fix support.<\/p>\n<p><a name=\"wp9000026\"><\/a><\/p>\n<p style=\"font-style: normal; font-variant: normal; font-weight: normal; margin-bottom: 3pt; margin-right: 0pt; margin-top: 0pt; text-decoration: none; text-transform: none;\">\u2022  Standard maintenance 15 T releases ideal for very latest features and  hardware support before the next M release becomes available on  Cisco.com (the first 15 T release is planned for 2nd quarter calendar  year\u00a02010).<\/p>\n<p><a name=\"wp9000027\"><\/a><\/p>\n<p style=\"font-style: normal; font-variant: normal; font-weight: normal; margin-bottom: 0pt; margin-right: 0pt; margin-top: 0pt; text-decoration: none; text-transform: none;\">\u2022  Rebuilds of Release 15 M and T releases contain bug fixes and ongoing  maintenance.<\/p>\n<p style=\"font-style: normal; font-variant: normal; font-weight: normal; margin-bottom: 0pt; margin-right: 0pt; margin-top: 0pt; text-decoration: none; text-transform: none;\"><a rel=\"attachment wp-att-614\" href=\"http:\/\/darenmatthews.com\/blog\/?attachment_id=614\"><img loading=\"lazy\" class=\"alignnone size-full wp-image-614\" title=\"IOS-15-maintenance-releases\" src=\"http:\/\/darenmatthews.com\/blog\/wp-content\/uploads\/2010\/04\/IOS-15-maintenance-releases.jpg\" alt=\"IOS-15-maintenance-releases\" width=\"543\" height=\"171\" srcset=\"http:\/\/darenmatthews.com\/blog\/wp-content\/uploads\/2010\/04\/IOS-15-maintenance-releases.jpg 543w, http:\/\/darenmatthews.com\/blog\/wp-content\/uploads\/2010\/04\/IOS-15-maintenance-releases-300x94.jpg 300w\" sizes=\"(max-width: 543px) 100vw, 543px\" \/><\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Cisco has announced a major change in the IOS versions, from the latest version 12.4 up to version 15.0 This is a major change and introduces some key changes, particularly to the way in which additional features are now &#8220;activated&#8221; using a licence key.<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[83],"tags":[32],"_links":{"self":[{"href":"http:\/\/darenmatthews.com\/blog\/index.php?rest_route=\/wp\/v2\/posts\/611"}],"collection":[{"href":"http:\/\/darenmatthews.com\/blog\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/darenmatthews.com\/blog\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/darenmatthews.com\/blog\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/darenmatthews.com\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=611"}],"version-history":[{"count":13,"href":"http:\/\/darenmatthews.com\/blog\/index.php?rest_route=\/wp\/v2\/posts\/611\/revisions"}],"predecessor-version":[{"id":863,"href":"http:\/\/darenmatthews.com\/blog\/index.php?rest_route=\/wp\/v2\/posts\/611\/revisions\/863"}],"wp:attachment":[{"href":"http:\/\/darenmatthews.com\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=611"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/darenmatthews.com\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=611"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/darenmatthews.com\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=611"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}