Configure Read only routing for an always on availability group

One of my friend sent an email with the requirement to load balance the traffic coming from application to secondary SQL Server replicas in always on availability group. Read-only routing refers to the ability of SQL Server to route qualifying read-only connection requests to an available Always On readable secondary replica. The advantage of Setting the readable secondary as Read-Intent Only will allow the secondary server to serve the read-only workload only if the connection string of the application contains Application Intent=Readonly parameter. 

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Ganapathi varma Chekuri
Lead SQL DBA, MCP
Email: gana20m@gmail.com

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