Software Load Balancers

Software load balancers are applications or components that run on general-purpose servers. They are implemented in software, making them flexible and adaptable to various environments.

  • The application chooses the first one in the list and requests data from the server. 
  • If any failure occurs persistently (after a configurable number of retries) and the server becomes unavailable, it discards that server and chooses the other one from the list to continue the process. 
  • This is one of the cheapest ways to implement load balancing. 

Types of Load Balancer

Load Balancers distribute incoming network traffic across multiple servers to ensure optimal resource utilization, minimize response time, and prevent server overload. When it comes to load balancing, three primary types exist: software load balancers, hardware load balancers, and virtual load balancers.

Similar Reads

1. Types of Load Balancer – Based on Configurations

1.1. Software Load Balancers...

1.1. Software Load Balancers

Software load balancers are applications or components that run on general-purpose servers. They are implemented in software, making them flexible and adaptable to various environments....

1.2. Hardware Load Balancers

As the name suggests we use a physical appliance to distribute the traffic across the cluster of network servers. These load balancers are also known as Layer 4-7 Routers and these are capable of handling all kinds of HTTP, HTTPS, TCP, and UDP traffic....

1.3. Virtual Load Balancers

A virtual load balancer is a type of load balancing solution implemented as a virtual machine (VM) or software instance within a virtualized environment ,such as data centers utilizing virtualization technologies like VMware, Hyper-V, or KVM. It plays a crucial role in distributing incoming network traffic across multiple servers or resources to ensure efficient utilization of resources, improve response times, and prevent server overload....

2. Types of Load Balancer – Based on Functions

2.1. Layer 4 (L4) Load Balancer/Network Load Balancer...

2.1. Layer 4 (L4) Load Balancer/Network Load Balancer

Layer-4 load balancers operate at the transport layer of the OSI model. They make forwarding decisions based on information available in network layer protocols (such as IP addresses and port numbers)....

2.2. Layer 7 (L7) Load Balancer/Application Load Balancer

Layer-7 load balancers operate at the application layer of the OSI model. They can make load balancing decisions based on content, including information such as URLs, HTTP headers, or cookies....

2.3. GSLB (Global Server Load Balancer) a.k.a. Multi-site Load Balancer

GSLB stands for Global Server Load Balancer. This type of load balancer goes beyond the traditional local load balancing and is designed for distributing traffic across multiple data centers or geographically distributed servers....

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