External LoadBalancer in Azure VM

Question

Azure powershell command Get-AzureDeployment -ServiceName "myservicename" returns the details of deployment in production slot. The returned value has variable LoadBalancers, now in my understanding we cannot create external loadbalancers explicitly in Azure, external loadbalancing is achieved using loadbalanced set or traffic manager in case of disparate deployments.

I was wondering what is returned in variable LoadBalancers and what is the purpose

Answer 1

What is it? It is internal load balancing.

What is its purpose? You can do load balancing behind a private IP address. This enables high availability plus additional security, because the private IP is only available via the Cloud service. Everything below the internal IP is more private yet still highly available to the presentation tier.

                  external IP
                       |
                       |
                presentation tier (front end)
                       |
                       |
                  internal IP  
                       |
                       |
              internal load balancing
                |                |
                |                |
           business tier      data tier
           servers            servers

See http://azure.microsoft.com/en-us/blog/internal-load-balancing/