FinServices has an ExpressRoute circuit that must connect to their Virtual WAN ExpressRoute gateway in East US. They plan for large bandwidth and expect to grow capacity. How should the Virtual WAN ExpressRoute gateway be configured to scale capacity and support multiple ExpressRoute circuits?
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Correct answer: Configure the Virtual WAN ExpressRoute gateway with the required number of scaleUnits (increase up to the supported maximum) to add capacity, and attach multiple ExpressRoute circuits to the same gateway configuration as needed..
Why this is the answer
The correct approach is to configure the Virtual WAN ExpressRoute gateway with the necessary scale units and attach multiple ExpressRoute circuits to it. Azure Virtual WAN ExpressRoute gateways are designed to be highly scalable, and you can increase their capacity by adjusting the number of scale units. Each scale unit provides a certain amount of bandwidth, and you can add more to meet growing demands. A single Virtual WAN ExpressRoute gateway can host multiple ExpressRoute circuits, simplifying management and connectivity. Deploying multiple ExpressRoute gateways in the same Virtual WAN hub is incorrect because you only need one gateway per hub for ExpressRoute connectivity, and scaling is managed through scale units. Using a single scale unit and requesting a quota increase is incorrect; scale units are adjustable and are the primary mechanism for increasing gateway capacity. Attaching each ExpressRoute circuit to a separate Virtual WAN hub is incorrect and inefficient, as a single Virtual WAN ExpressRoute gateway can support multiple circuits.
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