Configuring A Stateful Ha Pair - Dell NSA E8500 Getting Started Manual

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Scenario B: State Sync Pair in NAT/Route

Mode

For network installations with two Dell SonicWALL NSA E8500

appliances configured as a stateful synchronized pair for

redundant high-availability networking.

In this scenario, one NSA E8500 operates as the primary

gateway device and the other NSA E8500 is in passive mode.

All network connection information is synchronized between the

two devices so that the secondary appliance can seamlessly

switch to active mode without dropping connections if the

primary device loses connectivity.

Note: Active/Active pair functionality is also available for

high-availability deployments. For more information on

the benefits and setup instruction for Active/Active pair,

see the "SonicOS Active/Active Feature Module" at:

www.sonicwall.com/us/support.html

To set up this scenario, follow the steps covered in:

•

Initial Setup

- page 29

•