SonicOS 7.1 High Availability Administration Guide
- SonicOS 7.1
- About SonicOS
- High Availability
- Replacing an HA Primary Unit
- High Availability Config
- Configuration of HA Active/Standby
- Configuring Active/Standby High Availability Settings
- Configuring HA with Dynamic WAN Interfaces
- Configuring Network DHCP and Interface Settings
- Disabling the SonicOS DHCP Server
- Configuring Virtual IP Addresses
- Configuring Redundant Ports
- Fine Tuning High Availability
- Advanced Settings
- Configuring Advanced High Availability Settings
- Monitoring High Availability
- Configuring Active/Standby High Availability Monitoring
- Configuring Active/Standby High Availability Settings
- IPv6 High Availability Monitoring
- About This Document
- Azure Use Cases
- SonicWall Support
High Availability Config
The High Availability Config section on the Device > High Availability > Settings page provides the following information:
- HA Mode - Indicates one of:
- None - High Availability is not enabled on the unit.
- Active/Standby - Active/Standby mode provides basic high availability with the configuration of two identical firewalls as a High Availability Pair. By default, Active/Standby mode is stateless, meaning that network connections and VPN tunnels must be re-established after a failover. To avoid this, Stateful Synchronization can be licensed and enabled with Active/Standby mode.
- HA Control Link - Indicates the port, speed, and duplex settings of the HA control link, such as X6 1 Gbps Full Duplex. When High Availability is not enabled, the field displays not configured. The HA control link is used to communicate heartbeats and other control traffic between the units. If the HA control link fails, X0 is used to communicate heartbeats between units; therefore heartbeats on both units should be in the same broadcast domain.
- HA Data Link - Indicates the port, speed, and duplex settings of the HA data link, such as X7 1 Gbps Full Duplex. When High Availability is not enabled, the field displays not configured. The HA data link is used to transfer stateful data to keep session data synchronized between the units. The HA Data Link is not required when running in non-stateful HA.
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