What is Multi-Cloud Load Balancing?
Multi-cloud load balancing refers to a cloud-based network appliance that distributes client traffic across a pool of end-points residing in multiple cloud environments. The days of single public cloud deployments are gone, and it is essential to monitor, audit, and distribute traffic to different end-locations without any manual interference.
Cloud load balancing can be implemented to operate at either Layer 4 (transport layer) or Layer 7 (application layer) of the OSI networking model.
Various criteria can be used to distribute traffic between multiple cloud end-points, like turn-based, weighted or persistent routing, to name a few. The multi-cloud load balancer sits between the pool of backend servers and the clients, ensuring that the client gets routed to the most desirable backend server. Health monitors are used to ensuring that the traffic is only sent to healthy backend servers and cloud providers by taking the faulty server out of the load balancing pool.
Multi-cloud load balancers have many benefits over traditional on-premises hardware devices. The global nature of cloud appliances and the ease of deploying a software-based cloud load balancer make demand scalability and flexible control of cloud load balancers possible across multiple hosting solutions. It also ensures redundancy by running in numerous geographical locations.