HA synchronization

HA synchronization

The Primary node pushes the following configuration elements to the Secondary node. This is known as synchronization.

Setting	Synced (Yes/No)	Editable on Secondary in Active/Passive Mode (Yes/No)
System
High Availability	No	Yes
Admin
Administrator	Yes	No
Profile	Yes	No
Settings	Yes	No
Host Name	No	No
Authentication
RADIUS	Yes	No
LDAP	Yes	No
TACACS+	Yes	No
SNMP
System Information	No	Yes
Thresholds	Yes	No
Community	Yes	No
User	Yes	No
Certificate	No	Yes
Maintenance
Backup & Restore	Backup/Restore Allowed	Backup/Restore Allowed
Date & Time (including NTP)	Yes	No
Time Zone	Yes	No
Daily Config Backup	No	Yes
FortiGuard	Yes	No
Address and Service
Address IPv4	Yes	No
Address IPv4 Group	Yes	No
Address IPv6	Yes	No
Address IPv6 Group	Yes	No
Service	Yes	No
Service Group	Yes	No
Network
Interface
Traffic Ports	No	Yes
Management Ports	No	Yes
Route	No	Yes
DNS	No	Yes
Packet Capture	No	Yes
Global Settings
Deployment
Deployment	No	Yes
Bypass MAC	Yes	No
Proxy IP
Proxy IP Detection	Yes	No
Proxy IP List	Yes	No
Cloud Signaling	No	Yes
Access Control List
Access Control List	Yes	No
Access Control List IPv6	Yes	No
Blocklist
Blocklisted IPv4 Address	No	Yes
Blocklisted Domains	No	Yes
Do Not Track Policy
IPv4	Yes	No
IPv6	Yes	No
GRE Tunnel Endpoint	Yes	No
Service Protection
Service Protection Profiles
Service Protection Policy	Yes	No
Source Tracking	Yes	No
Blocking Settings	Yes	No
Service Ports Setting	Yes	No
Protection Profile Settings	Yes	No
Protection Subnets	Yes	No
ACL	Yes	No
Thresholds	Yes	No
DNS Protection Profile	Yes	No
TCP Protection Profile	Yes	No
IP Protection Profile	Yes	No
ICMP Protection Profile	Yes	No
NTP Protection Profile	Yes	No
HTTP Protection Profile	Yes	No
SSL/TLS Protection Profile	Yes	No
Log & Report
Log configuration	No - all settings and Reports are independent.
Local Log Settings	No	Yes
Event Log Remote	No	Yes
DDoS Attack Log Remote	No	Yes
Alert Email Settings	No	Yes
Log Purge Settings	No	Yes
SNMP Trap Receivers	No	Yes
Remote Log Settings	No	Yes
Log Access
Logs	No	Not Applicable Logs are displayed independently on each appliance
Log Backup	No	Yes
Report Configuration	No	Yes
Report Purge	No	Yes
Report Browse	No	Yes
Flowspec	No	Yes
Monitor
All Graphs	No	Not Applicable All graphing is independent to each appliance. There are no configuration options in Monitor graphs.

Synchronization occurs immediately when an appliance joins the cluster, and thereafter every 30 seconds. In an active-passive cluster, any synchronized settings (Yes in the 'Synced' column above) are read-only on the Secondary node.

All other system configuration, network and interface configuration, HA configuration, and log/report configuration (Yes in the 'Editable' column above) are not synchronized but may be edited on the Secondary even when it is in Active-Passive Mode.

Note the following:

It is not recommended to perform the below actions on a Primary node when it is in HA Active-Passive mode. You need to switch to standalone mode to modify these settings:
- Configuration restore - this is likely to cause Secondary system reboots. It is better to put the systems in standalone mode and restore to each system, then place in Active-Passive mode, unless Secondary rebooting is acceptable.
- TAP mode change
HA Secondary does not synchronize time/date from HA Primary.
HA settings are read-write on all nodes in all modes so that you can switch from HA to standalone mode as needed.

Collected data is also not synchronized. The following data is not synchronized:

Session data—It does not synchronize session information or any other element of the data traffic.
Estimated thresholds—Configured thresholds are part of the configuration and are synchronized, but estimated thresholds that are shown in Monitor graphs are based on the history of traffic processed by the local system.
Log messages—These describe events that happened on that specific appliance. After a failover, you might notice that there is a gap in the original active appliance’s log files that corresponds to the period of its down time. Log messages created during the time when the standby was acting as the active appliance (if you have configured local log storage) are stored there, on the original standby appliance.
Generated reports—Like the log messages that they are based upon, PDF, HTML, RTF, and plain text reports also describe events that happened on that specific appliance. As such, report settings are synchronized, but report output is not.

HA synchronization

The Primary node pushes the following configuration elements to the Secondary node. This is known as synchronization.

Setting	Synced (Yes/No)	Editable on Secondary in Active/Passive Mode (Yes/No)
System
High Availability	No	Yes
Admin
Administrator	Yes	No
Profile	Yes	No
Settings	Yes	No
Host Name	No	No
Authentication
RADIUS	Yes	No
LDAP	Yes	No
TACACS+	Yes	No
SNMP
System Information	No	Yes
Thresholds	Yes	No
Community	Yes	No
User	Yes	No
Certificate	No	Yes
Maintenance
Backup & Restore	Backup/Restore Allowed	Backup/Restore Allowed
Date & Time (including NTP)	Yes	No
Time Zone	Yes	No
Daily Config Backup	No	Yes
FortiGuard	Yes	No
Address and Service
Address IPv4	Yes	No
Address IPv4 Group	Yes	No
Address IPv6	Yes	No
Address IPv6 Group	Yes	No
Service	Yes	No
Service Group	Yes	No
Network
Interface
Traffic Ports	No	Yes
Management Ports	No	Yes
Route	No	Yes
DNS	No	Yes
Packet Capture	No	Yes
Global Settings
Deployment
Deployment	No	Yes
Bypass MAC	Yes	No
Proxy IP
Proxy IP Detection	Yes	No
Proxy IP List	Yes	No
Cloud Signaling	No	Yes
Access Control List
Access Control List	Yes	No
Access Control List IPv6	Yes	No
Blocklist
Blocklisted IPv4 Address	No	Yes
Blocklisted Domains	No	Yes
Do Not Track Policy
IPv4	Yes	No
IPv6	Yes	No
GRE Tunnel Endpoint	Yes	No
Service Protection
Service Protection Profiles
Service Protection Policy	Yes	No
Source Tracking	Yes	No
Blocking Settings	Yes	No
Service Ports Setting	Yes	No
Protection Profile Settings	Yes	No
Protection Subnets	Yes	No
ACL	Yes	No
Thresholds	Yes	No
DNS Protection Profile	Yes	No
TCP Protection Profile	Yes	No
IP Protection Profile	Yes	No
ICMP Protection Profile	Yes	No
NTP Protection Profile	Yes	No
HTTP Protection Profile	Yes	No
SSL/TLS Protection Profile	Yes	No
Log & Report
Log configuration	No - all settings and Reports are independent.
Local Log Settings	No	Yes
Event Log Remote	No	Yes
DDoS Attack Log Remote	No	Yes
Alert Email Settings	No	Yes
Log Purge Settings	No	Yes
SNMP Trap Receivers	No	Yes
Remote Log Settings	No	Yes
Log Access
Logs	No	Not Applicable Logs are displayed independently on each appliance
Log Backup	No	Yes
Report Configuration	No	Yes
Report Purge	No	Yes
Report Browse	No	Yes
Flowspec	No	Yes
Monitor
All Graphs	No	Not Applicable All graphing is independent to each appliance. There are no configuration options in Monitor graphs.

Note the following:

It is not recommended to perform the below actions on a Primary node when it is in HA Active-Passive mode. You need to switch to standalone mode to modify these settings:
- Configuration restore - this is likely to cause Secondary system reboots. It is better to put the systems in standalone mode and restore to each system, then place in Active-Passive mode, unless Secondary rebooting is acceptable.
- TAP mode change
HA Secondary does not synchronize time/date from HA Primary.
HA settings are read-write on all nodes in all modes so that you can switch from HA to standalone mode as needed.

Collected data is also not synchronized. The following data is not synchronized:

Session data—It does not synchronize session information or any other element of the data traffic.
Estimated thresholds—Configured thresholds are part of the configuration and are synchronized, but estimated thresholds that are shown in Monitor graphs are based on the history of traffic processed by the local system.
Log messages—These describe events that happened on that specific appliance. After a failover, you might notice that there is a gap in the original active appliance’s log files that corresponds to the period of its down time. Log messages created during the time when the standby was acting as the active appliance (if you have configured local log storage) are stored there, on the original standby appliance.
Generated reports—Like the log messages that they are based upon, PDF, HTML, RTF, and plain text reports also describe events that happened on that specific appliance. As such, report settings are synchronized, but report output is not.

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