What are the differences between automatic session backup and quick session backup

The differences between quick session backup and automatic session backup are as follows:
-In quick session backup, sessions are synchronized to the standby firewall immediately after being set up. In automatic session backup, only sessions that require backup and are detected by the session aging thread are synchronized to the standby firewall.
-The quick session backup function can back up half-open TCP sessions and sessions to the firewall.

If the forward and return paths are different, enable quick session backup to ensure that the sessions on the two firewalls are the same.

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