@teja1027. The configuration of Azure Load Balancer (LB) and Virtual Machine Scale Set (VMSS) may seem similar, but the approach and outcome are different: - Adding an existing Scale Set to a Load Balancer: In this scenario, you connect an existing VMSS to an existing Load Balancer. This configuration allows the Load Balancer to distribute traffic among the virtual machine (VM) instances in the VMSS. This is usually done when you already have a VMSS and want to add load balancing to improve availability and scalability. - Adding an existing Load Balancer to a Scale Set: In this case, you're configuring an existing VMSS to use an existing Load Balancer. This means you want to leverage an already existing Load Balancer to manage traffic for the VM instances in the VMSS. Although both scenarios involve connecting a VMSS to a Load Balancer, the main difference lies in the approach: * In the first scenario, you start with an existing VMSS and connect it to a Load Balancer to add load balancing capabilities. * In the second scenario, you start with an existing Load Balancer and configure a VMSS to use it, thus integrating load balancing into the VM instances within the Scale Set. In both cases, the ultimate goal is the same: to ensure that traffic is efficiently distributed among the VM instances in the VMSS to improve the application's availability, scalability, and resilience. The difference mainly lies in the order in which you perform the integration and the initial setup.
