topic Re: Cisco ISE Patch Installation and hot fix query in Network Access Control

Cisco ISE Patch Installation and hot fix query

palani2010 — Fri, 06 Jun 2025 10:03:02 GMT

Re: Cisco ISE Patch Installation and hot fix query

Mark Elsen — Fri, 06 Jun 2025 17:01:20 GMT

- @palani2010 What is your essential question ?

Re: Cisco ISE Patch Installation and hot fix query

palani2010 — Sat, 07 Jun 2025 04:40:57 GMT

In a Cisco ISE distributed deployment, if I install a patch on the Primary Administration Node (PAN), will the patch also install on the remaining nodes, such as the Backup PAN, Monitor Node (MNT), and Policy Services Node (PSN)?

In a distributed deployment of Cisco ISE, if I install a hotfix on the CLI of the PAN, will it also be installed on the remaining nodes via CLI?

Will the hotfix be installed only on the CLI?

Thank you in advance

Re: Cisco ISE Patch Installation and hot fix query

palani2010 — Sat, 07 Jun 2025 04:41:26 GMT

In a distributed deployment of Cisco ISE, if I install a hotfix on the CLI of the PAN, will it also be installed on the remaining nodes via CLI?

Will the hotfix be installed only on the CLI?

Thank you in advance

Re: Cisco ISE Patch Installation and hot fix query

Mark Elsen — Sat, 07 Jun 2025 06:49:49 GMT

- @palani2010 Patch installations will propagate automatically when started from the primary PAN with the GUI. In contrast you need to apply a hotfix to each node in the order of your choosing keeping in mind that the services will restart when you run it on that specific node, so most would do it one node at a time.

Personally I prefer to manually install patches too with the CLI (and avoid the overall procedure with the GUI) because it gives more control and verbose output when something goes wrong

Re: Cisco ISE Patch Installation and hot fix query

bearman97 — Sat, 07 Jun 2025 13:00:47 GMT

A VERY important point to remember: when preparing for your next round of patches be sure to remove any applied hotfixes prior to patch installation. Failure to do so can result in very bad things happening, ultimately resulting in a need to rebuild your environment.