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Load Balancing On Premises VMs into Azure

BUDHADITYA BANERJEE 71 Reputation points
2022-01-17T03:53:12.59+00:00

We do have a Site to site VPN configured from Azure to On Premises and we do have around 20 applications hosted in 20VMs. We now want to create Azure as the secondary passive site and host 20VMs which will be the replica of the On Prem VMs so that Azure VMs can take over the load if the on prem is down. Can we achieve the same via Azure load Balancer or Azure Traffic manager and if somebody can inform how can we securely and cost effectively achieve this.

Azure Load Balancer
Azure Load Balancer
An Azure service that delivers high availability and network performance to applications.
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  1. Manu Philip 17,671 Reputation points MVP
    2022-01-17T04:41:16.757+00:00
    • Azure Load Balancer can be only used for load balancing Azure VMs in same availability set (Same azure region) within Azure and can't be used to server on premises servers
    • DNS based load balancer like Traffic Manager can be used as an alternative. Traffic Manager endpoint can be any internet facing service hosted inside or outside of Azure. Reference: traffic-manager-faqs
    • Another option is Azure Application Gateway solution that can be served regardless of the region/on-premises. As long as you have IP connectivity, Application Gateway can communicate with instances outside of the virtual network that it's in. Application Gateway can also communicate with instances outside of the subscription it's in. Reference: application-gateway-faq

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