Hello @Dhruva CHOUBEY ,
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There is no straightforward "Backend Health" option in Azure Load balancer as we do in Azure Application gateway. However, we do have various metrics in Standard load balancer to find out the resource health, health probe status and so on.
Resource health :
The Resource Health status of your Load Balancer is available in the Resource Health page under Monitor. The Resource Health Check (RHC) for the Load Balancer is used to determine the health of your load balancer. It analyzes the Data Path Availability metric over a 2-minute interval to determine whether the load balancing endpoints, the frontend IP and frontend ports combinations with load balancing rules, are available.
Health probe status :
Standard Load Balancer uses a distributed health-probing service that monitors your application endpoint's health according to your configuration settings. This metric provides an aggregate or per-endpoint filtered view of each instance endpoint in the load balancer pool.
To configure load balancer metrics, please refer : https://learn.microsoft.com/en-us/azure/load-balancer/load-balancer-standard-diagnostics
Post configuration of the metrics, if you face any issues or see a dip in the health probe status of the LB or the resource health reports it as unavailable, you may follow the below articles for troubleshooting:
Metrics are available for Standard load balancer only. Basic SKU do not offer metrics.
Kindly let us know if the above helps or you need further assistance on this issue.
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