General NFM-P Release 22.9 or later upgrade workflow

The following is the sequence of high-level actions required to upgrade an NFM-P system.

Note: The workflow applies to an upgrade in a staging environment or in a live network.

Pre-upgrade

1	Perform To prepare for an NFM-P system upgrade from Release 22.9 or later to collect the required information and to ensure that the correct upgrade conditions are in place.
2	If SELinux is enabled in the NFM-P, and you want SELinux enabled after the upgrade, perform To prepare an SELinux-enabled NFM-P Release 22.9 or later system for an upgrade to ensure that SELinux is enabled and in permissive mode before the upgrade.
Upgrade

3	Perform one of the following. Upgrade a standalone NFM-P system; see Standalone NFM-P system upgrade from Release 22.9 or later. Upgrade a redundant NFM-P system; see Redundant NFM-P system upgrade from Release 22.9 or later.
Post-upgrade

4	If either of the following is true, perform “How do I enable SELinux enforcing mode for the NFM-P?” in the NSP System Administrator Guide to switch from SELinux permissive mode to enforcing mode. You have performed To prepare an SELinux-enabled NFM-P Release 22.9 or later system for an upgrade to set SELinux in permissive mode before the upgrade, and want to restore the use of enforcing mode. The upgrade has enabled SELinux in the NFM-P for the first time, but in permissive mode, and you want the more stringent security of enforcing mode.