ISE2.1 patch installation order

[yalbikaw]

what is exactly the order of patch install,

as per the document it starts with PAN

http://www.cisco.com/c/en/us/td/docs/security/ise/2-1/admin_guide/b_ise_admin_guide_21/b_ise_admin_guide_20_chapter_0100.html#ID202

then the PSN's

i need to know exactly the order ?, is it alphabetical or  how they are listed top down ?

in a large deployment which includes multiple countries we need to know in order to manage the maintenance window on each site

[Jason Kunst · Accepted solution]

testing on 2.2 its just going one by one across the deployment, in the order you see on deployment pageshowed patch installation on the node will not start unless the previous node was updated successfully and services come up after restart

CLI patch will allow you to control the order

Although depends on patch what components it will impact, I usually recommend starting with PPAN.