{"id":2272,"date":"2024-10-04T22:22:00","date_gmt":"2024-10-04T21:22:00","guid":{"rendered":"https:\/\/www.balajibandi.com\/?p=2272"},"modified":"2024-10-05T20:26:23","modified_gmt":"2024-10-05T19:26:23","slug":"wlc-cat-9800-ha-upgrade","status":"publish","type":"post","link":"https:\/\/www.balajibandi.com\/?p=2272","title":{"rendered":"WLC Cat 9800 HA Upgrade"},"content":{"rendered":"\n

Recently due to bug, we need to upgrade to Latest code and stable version 17.9.5 suggested version with SMU patch.<\/p>\n\n\n\n

CAt 9800 WLC in HA with 1000+ AP connected. ( AP Model Cat 91XX)<\/p>\n\n\n\n

Plan is Upgrade using ISSU and Rolling upgrade (per iteration AP upgrade 15%)<\/p>\n\n\n\n

Terminate the Upgrade if this go beyond 6 hours.<\/p>\n\n\n\n

    \n
  1. Check make sure HA working as expected – try to Failover before Upgrade.<\/li>\n\n\n\n
  2. Take the backup of the configuration out of the box<\/li>\n\n\n\n
  3. Read the Release notes and caveats of the Version you planning to upgrade.<\/li>\n\n\n\n
  4. Check any ongoing issue with Wireless before upgrading.<\/li>\n<\/ol>\n\n\n\n

    Upgrade time : took around 4-5 hours be patient.<\/p>\n\n\n\n

    Upgrade what we are doing here 17.9.3 to 17.9.5 <\/p>\n\n\n\n

    couple of reference :<\/p>\n\n\n\n

    ISSU feature is supported only within and between major releases, for example, 17.3.x (within a release) and 17.3.x to 17.6.x (among major releases).<\/p>\n\n\n\n

    https:\/\/www.cisco.com\/c\/en\/us\/support\/docs\/wireless\/catalyst-9800-series-wireless-controllers\/214749-tac-recommended-ios-xe-builds-for-wirele.html<\/a><\/p>\n\n\n\n

    https:\/\/www.cisco.com\/c\/en\/us\/td\/docs\/wireless\/controller\/9800\/17-9\/release-notes\/rn-17-9-9800.html<\/a><\/p>\n\n\n\n

    Collect all the below information before Upgrade start ( so you can verify all working as expected)<\/p>\n\n\n\n

    Login to HA IP and Dashboard <\/p>\n\n\n\n

      \n
    1. How many SSID Active<\/li>\n\n\n\n
    2. Number AP are registered<\/li>\n\n\n\n
    3. Number Clients connected<\/li>\n\n\n\n
    4. Number of Clients per SSID basis<\/li>\n\n\n\n
    5. check the HA status<\/li>\n\n\n\n
    6. check Mobility anchors all up.<\/li>\n<\/ol>\n\n\n\n

      If all above collected. Good to start upgrade.<\/p>\n\n\n\n

      Download Image required to upgrade cisco side and do the validation if required like MD5 check.<\/p>\n\n\n\n

      If all good simple steps :<\/p>\n\n\n\n

        \n
      1. WLC GUI – Administration –>SoftwareManagement<\/li>\n\n\n\n
      2. Software Upgrade.<\/li>\n<\/ol>\n\n\n\n
        \"\"<\/figure>\n\n\n\n

        3. Then wait for the process to complete. (4-5 hours)<\/p>\n\n\n\n

        4. It will pre download images to all AP. (takes while depends on the AP qty in the environment)<\/p>\n\n\n\n

        5. Then it will upgrade Standby and then Primary<\/p>\n\n\n\n

        6. Next it start upgrade iteration of AP you selected % <\/p>\n\n\n\n

        Monitor the AP iteration upgrade, show ap upgrade command level or click AP Upgrade statistics from the GUI on the Install screen<\/p>\n\n\n\n

        7. Once all completed, then you verify HA and all the AP Online.<\/p>\n\n\n\n

        8 Commit.<\/p>\n\n\n\n

        9. For now the Standby WLC is active, if you like you can faiover back to Active <\/p>\n\n\n\n

        Last and least is ——-Monitoring next 24 to 48 hours any issue from clients or logs from WLC.<\/p>\n\n\n\n

        Hope this help you………….happy Labbbbbbbbbbbbbbbbbbbbbing.<\/p>\n","protected":false},"excerpt":{"rendered":"

        Recently due to bug, we need to upgrade to Latest code and stable version 17.9.5 suggested version with SMU patch. CAt 9800 WLC in HA with 1000+ AP connected. ( AP Model Cat 91XX) Plan is Upgrade using ISSU and Rolling upgrade (per iteration AP upgrade 15%) Terminate the Upgrade if this go beyond 6 […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[2,33],"tags":[],"class_list":["post-2272","post","type-post","status-publish","format-standard","hentry","category-cisco","category-wireless"],"_links":{"self":[{"href":"https:\/\/www.balajibandi.com\/index.php?rest_route=\/wp\/v2\/posts\/2272","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.balajibandi.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.balajibandi.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.balajibandi.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.balajibandi.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=2272"}],"version-history":[{"count":2,"href":"https:\/\/www.balajibandi.com\/index.php?rest_route=\/wp\/v2\/posts\/2272\/revisions"}],"predecessor-version":[{"id":2275,"href":"https:\/\/www.balajibandi.com\/index.php?rest_route=\/wp\/v2\/posts\/2272\/revisions\/2275"}],"wp:attachment":[{"href":"https:\/\/www.balajibandi.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=2272"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.balajibandi.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=2272"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.balajibandi.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=2272"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}