On the Internet, organizations whose has web sites and also get huge traffic usually use load balancing technique to manage server. Every webmaster keeps a complete eye on there load balance to mange the web server traffic. The web servers are one of the most important factors for growing business. As sever administrator manage the load balance in different ways. The load balancing of the web server technique is been done in round-robin fashion.
For balancing the website traffic, there are several approaches. The webs servers are are one approach is to route each request in turn to a different server host address in a domain name system (DNS) table. Balancing the web server load is a procedure in which inbound internet protocol (IP) traffic can be distributed across multiple load balancing server or on the Load balancing Switch. There is multiple load balancing solution available with in the web hosting industry. There are high end Internet load balancing solution as well as load balance routers to manage online server.
In this type of balancing technique two online web servers are being used to balance the complete work load on the servers and the third server is used to determine which server to assign the work to. Since load balancing requires multiple servers, it is usually combined with fail over and backup services. In some approaches, the web server is distributed over different geographic locations. Load balancing can be implemented with hardware, software, or a combination of both. Typically, load balancing is the main reason for computer server clustering.
A Network load balancing is also a balancing technique to distribute workload equally across two or more web server, CPUs, hard drives, network links, or other resources. Which indeed to get optimal resource utilization, maximize throughput, minimize response time, and avoid overload. Load balancing is dividing the amount of work that a computer has to do between two or more computers so that more work gets done in the same amount of time and, in general, all users get served faster. Commonly the network load balancing can also manage popular web sites that usually get high traffic.
Load balancing enhances the performance of the web server, leads to their optimal utilization and ensures that no single server is overwhelmed. Network load balancing also helps in managing DNS servers. The large Internet Relay Chat networks, high-bandwidth File Transfer Protocol sites are also being monitor. Using multiple components with load balancing, instead of a single component, may increase scalability and reliability with redundancy. The load balancing of a service is provided by a dedicated program or hardware device (such as a multilayer switch or a DNS server). Load balancing is a procedure in which inbound internet protocol (IP) traffic can be distributed across multiple servers.
Benefits of Load Balancing:-
- Improves server performance – With the help of load balancing server the performance is achieved .The advanced load balancing technique can easily re-direct end-user service requests to the servers with the fastest response times.
- Adds Intelligence – The servers also has a feature in which it allow you to send requests for certain web pages to specific groups of servers. The special request is been done with the help of priority to the servers.
- Enhanced availability -If the online server application gets failed the load balancing can be easily redistributed by the end-user service requests to different webservers within a server farm or to servers in another location to manage the server load balancing.
- Creates Resilience – High- Availability pairs for load balancer resilience, and creates fault-tolerance for your back-end servers.
- Improves Reliability – With the help of online monitoring on the health of your web servers. The failed servers easily get detected and removed from the cluster until they recover.
- Improved flexibility and scalability – Majority of the content intensive applications has been scaled beyond the point of limits where as a single server can provide the web based client a adequate processing power.
- One-Click Session Persistence – A client is just one click away, for the sticky sessions for your web application when ever required by the.


