Create Server Pool elements

The Server Pool element collects servers that provide a particular service into a single element and defines the settings for handling the inbound traffic.

Before you begin

You must have a Host element that represents the internal IP address of each server that you want to add to the Server Pool.

Note: Make sure that other NAT configurations do not overlap with the internal and external IP addresses of the Server Pool.

We recommend creating a separate Server Pool element for each type of service. Add servers to Server Pools based on the services that the servers provide.

The Server Pool can have up to 255 members. If you have only one server and you want to balance the inbound traffic between your NetLinks, you can define a Server Pool element with just one host. This approach allows dynamic DNS update information to be used to prevent contacting clients from attempting to use a NetLink that is out of service.

Steps

  1. Select Secure SD-WAN Configuration.
  2. Browse to Traffic Handlers.
  3. Right-click Traffic Handlers, then select New > Server Pool.
  4. In the Name field, enter a unique name for the Server Pool.
  5. Define the external IP addresses of the Server Pool.
    1. In the External Addresses section, click Add.
    2. Select a NetLink element.
      Tip: To load-balance servers without using Multi-Link for inbound traffic management, select Not Specified.
    3. From the Network drop-down list, select the network to which the Server Pool’s external IP address belongs.
    4. In the IP Address field, enter the external IP address for the Server Pool.
      Note: The IP address you enter here must be reserved for NAT and it must not be used by any equipment in your network. Remember to update your DNS server with any changes in IP addressing.
    5. From the Status drop-down list, select Enabled.
  6. Add servers to the list of Server Pool members.
    1. In the Server Pool Members section, click Add.
    2. Add the Host elements that represent the internal IP address of the servers to the list of Server Pool members.
      Tip: For servers that have some special role in the SMCaaS Application configuration, you can add the existing Server element.
    3. From the Allocate Traffic to Servers by drop-down list, select the granularity for the server selection.

      Consider the type of traffic when selecting the allocation method. Connections from the same source might be directed to different servers in the following cases:

      • Using the Host setting if the host’s IP address apparent to the SMCaaS Application can change.
      • Using the Connection setting in all cases.

      Depending on the services offered, directing connections from the same source to different servers might reduce the quality of service.

  7. Click OK.