R&D responded:
For R80.x, refer to: For single domain: "Management High Availability" section in the Check Point Security Management R80 Administration Guide For multi domain: "Working with High Availability" section in the Multi-Domain Security Management R80 Administration Guide. sk was modified accordingly.
Here we read:
Management High Availability uses the built-in revisions technology and allows the High Availability procedure to synchronize only the changes done since the last synchronization. This provides:
• Real-time updates between management peers
• Minimal effect on the management server resources.
Synchronizing Active and Standby Servers
At intervals, the Active server synchronizes with the standby server or servers, and when you publish the session. Sessions that are not published are not synchronized.
So we can assume that:
- Sync will occur with every published session, reminding of the "sync with policy install" option
- Real-time updates between management peers will occur, but no sync interval can be configured
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