N1 Provisioning Server 3.1, Blades Edition, Control Center Management Guide

ProcedureHow To Configure the Load Balancer

Load balancing evenly distributes data and processing across selected resources. Specify the type of load balancing and identify a load balancing group according to your business requirements. IP addresses are assigned after the farm is activated. The following procedure describes how to use the Editor screen to configure a Load Balancer device.

Steps
  1. Double-click the Load Balancer element on the Editor screen.

    The Configure Load Balancer dialog box appears.

  2. Type the name in the Name field.

  3. Select the device from the Type drop-down list, use HA device for high availability.


    Note –

    You may modify this type only when the device is in the Design state.


  4. Select the load-balancing policy from the Policy drop-down list.

    The following choices appear.

    • Round Robin (default)—New connections are routed sequentially to servers in the Load Balancer group, thereby spreading new sessions equally across all servers.

    • Least Connected—New connections are sent to the server with the least number of active sessions.

    • Weighted—New connections are sent to servers according to weight assignments. Servers with a higher weight value receive a larger percentage of connections. You can assign a weight to each real server, and that weight determines the percentage of the current connections given to each server. The default weight is 1. You must set the load balancer weights manually.


    Note –

    You may modify the Load Balancer policy in the Design and Active states.


  5. Type notes or comments in the Notes field.

  6. Click Add Binding and specify the IP port used to balance incoming traffic.

    Each virtual interface has a set of bindings that consist of the virtual port, the real interface, and the real port. Traffic is balanced across the bindings for the interface that shares the same port.


    Note –

    You may change this port only in Design and Active states.


  7. Select the device from the Real Interface drop-down list.

    The traffic coming into the virtual port on the virtual interface is balanced to the real interfaces according to the load balancing policy specified. For example, if an interface on a server group is specified as the real interface, then the binding applies to all the servers in the group.

  8. Select the port used by the server(s) to balance traffic from the Real Port drop-down list.

    The Real Port should be the same as the virtual port.


    Note –

    If you use a non-standard port, you are required to set the port.


  9. Click OK.

    The Configure Load Balancer dialog box is closed.

  10. Configure Servers. See How To Configure Servers for Load Balancing.

See Also