Redundancy
This design includes multiple SD-WAN Gateways located at geo-redundant datacenter locations that provides inter-datacenter and intra-datacenter redundancy. Intra-datacenter redundancy refers to the gateway redundancy that occurs inside a datacenter location. Inter-datacenter redundancy refers to the SD-WAN branch device steering between geo-redundant locations based on the predefined SLAs and steering rules.
In the following sections, we will discuss how to accomplish intra-site and inter-site redundancy to maximize business continuity for various use cases. For more information on the various high availability mechanism and modes, please refer to the FortiOS Administration Guide.
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Gateway Redundancy |
Benefits |
Considerations |
|---|---|---|
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Intra-datacenter redundancy with active-passive HA cluster |
Local datacenter protection from equipment failures and other datacenter impairments Logically seen as a single device per datacenter |
Offers redundancy at the local datacenter or HQ location from various impairments |
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Inter-datacenter redundancy with primary/secondary gateways at geo-redundant locations |
Geo-redundant datacenter protection and steering Logically seen as different devices at different locations SD-WAN rules will determine optimal path |
Offers redundancy from issues at the datacenter location Allows you to choose the best performing SD-WAN gateway across locations for improved application performance |
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Inter-datacenter redundancy with primary/primary gateways at geo-redundant locations |
Like primary/secondary |
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