Get started with Azure Front Door by using the Azure portal to set up high availability for a web application.
In this quickstart, Azure Front Door pools two instances of a web application that run in different Azure regions. You create a Front Door configuration based on equal weighted and same priority backends. This configuration directs traffic to the nearest site that runs the application. Azure Front Door continuously monitors the web application. The service provides automatic failover to the next available site when the nearest site is unavailable.
Azure Front Door enables you to define, manage and monitor the global routing for your web traffic by optimizing for best performance and instant global failover for high availability. With Front Door, you can transform your global ( multi-region ) consumer and enterprise applications into robust, high-performance personalized modern applications, APIs and content that reaches a global audience with Azure.
Front Door works at layer 7 or HTTP/HTTPS layer and uses anycast protocol with split TCP and Microsoft's global network for improving global connectivity.
Create two instances of a web app
This quickstart requires two instances of a web application that run in different Azure regions. Both the web application instances run in Active/Active mode, so either one can take traffic. This configuration differs from an Active/Stand-By configuration, where one acts as a failover.
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