To make your SharePoint farm builds resilience, network load balancing plays an important role. In this article I will cover load balancing Web Front End servers using Citrix NetScaler.
To begin with the configuration.
1. Logon to Citrix NetScaler. Under traffic management, expand Load Balancing and click on servers and add SharePoint servers you would like to load balance. In this example, I will use WFE 01 and WFE02. Add server name and IP addresses.
Repeat the same step for another Web Front End server.
2. Now click on Service groups under the same tab and give the service group a name and click on the members and add SharePoint servers you have created in step one.
Next, click on Monitors tab and choose http and click on add.
3. We will be binding a service group to the virtual server and assign our virtual IP. Under load balancing, click on Virtual Servers, give it a name and add virtual IP and then click on Service Groups and choose SharePoint service group you have created in step 2
Within the same screen, choose Method and Persistence tab and Select Least Connection in Method and None as Persistence drop downs.
Thats it your NLB for SharePoint should be up and running, to check if your configuration is done properly, go to Virtual server and see that state is UP.