PAN-OS-style: two managers as a high-availability pair
A manager that is down stops every push. Two managers can work as an active/passive pair: only the active one pushes, and the passive one holds a copy of the running configuration. Each manager names the other as its peer, one is primary and the other secondary, and each firewall names both. MGR1 (10.0.0.5) already manages F1. MGR2 is new: it has no address yet.
The simulator ticks each one as soon as the network meets it.
On F1: add the second manager’s address, set deviceconfig system panorama-server-2 10.0.0.6, and commit.
On MGR2: management address 10.0.0.6, high availability enabled, peer 10.0.0.5, priority secondary; commit. On MGR1: enabled, peer 10.0.0.6, priority primary; commit. show high-availability state: MGR1 is primary-active, MGR2 is secondary-passive, and the running configuration is synchronized.
On MGR1: request high-availability state suspend. MGR2 becomes secondary-active.
On MGR2: add the pre-rule NO-TELNET to device group SITE (deny application telnet from trust to untrust), commit, and push device group SITE. F1 takes it from MGR2.
On MGR1: request high-availability state functional (it comes back passive). On MGR2: request high-availability sync-to-remote running-config. Both show synchronized, and MGR1 has the rule.