What is WAN load balancing?

What is WAN load balancing?

Network load balancing (commonly referred to as dual-WAN routing or multihoming) is the ability to balance traffic across two or more WAN links without using complex routing protocols like BGP. This capability balances network sessions like Web, email, etc.

Is a load balancer a network appliance?

Hardware load balancer device (HLD) is a physical appliance used to distribute web traffic across multiple network servers. Routing is either randomized (e.g., round-robin), or based on such factors as available server connections, server processing power, and resource utilization.

Which algorithm is best for load balancing?

Load Balancing Algorithms and Techniques

  • Round Robin. Round-robin load balancing is one of the simplest and most used load balancing algorithms.
  • Weighted Round Robin.
  • Least Connection.
  • Weighted Least Connection.
  • Resource Based (Adaptive)
  • Resource Based (SDN Adaptive)
  • Fixed Weighting.
  • Weighted Response Time.

Is load balancer software or hardware?

A hardware load balancer is a hardware device with a specialized operating system that distributes web application traffic across a cluster of application servers. To ensure optimal performance, the hardware load balancer distributes traffic according to customized rules so that application servers are not overwhelmed.

What kind of device is a load balancer?

A load balancer is a device that acts as a reverse proxy and distributes network or application traffic across a number of servers. Load balancers are used to increase capacity (concurrent users) and reliability of applications.

What Nginx used for?

NGINX is open source software for web serving, reverse proxying, caching, load balancing, media streaming, and more. It started out as a web server designed for maximum performance and stability.

What is the difference between ALB and ELB?

An Application Load Balancer (ALB) only works at layer 7 (HTTP). It has a wide range of routing rules for incoming requests based on host name, path, query string parameter, HTTP method, HTTP headers, source IP, or port number. In contrast, ELB only allows routing based on port number.

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