Best Hardware: A load balancing hardware is a device utilized for splitting the amount of network loads across different servers, somewhat the same way a softwareload balancer is used. It controls computers to respective servers in a network, built on conditions such as utilization of server , the number of server connections, and the total server capability. By using a load balancing hardware, one can reduce network downtime, effectively manage traffic prioritization, apply end-to-end monitoring, supply user authentication, and provide protection or security against malicious attacks.
Load balancing works by sending network traffic to a shared IP (often called virtual IP or VIP), which is an address connected to the load balancer. The load balancer will decide on where to send the request from the VIP. The decision making is usually administered by a load balancing method or strategy, a server health check, and a rule set (in the case of a next generation device). The request is then sent to the associated server and will response if successful. The response will be relayed either back to the load balancer or straight back to the end-user relying on the kind of the device.
For performance, scalability, and reliability reasons, majority of websites with very high traffic uses some type of clustered server architecture. To equally appropriate the traffic to different web servers, a load balancing hardware solution should sit in the middle of the server cluster and the Internet. For additional level of dependability, it will also route traffic around a failed cluster node.
Here are some of the best and most popular load balancing hardware:
Cisco Systems is well-known for building networking infrastructure hardware that keeps the most demanding networks up and running. The best selling product of Cisco is the Catalyst 6500 system. It was made to handle with problems at layers 2, 3, and 4. Built on a modular chassis, the Catalyst 6500 is flexible to deal with everything from switching to firewall services to SSL and IPSec services.