Configure Network Load Balancing Host Parameters

Applies To: Windows Server 2008, Windows Server 2008 R2

Use the following procedure to configure Network Load Balancing (NLB) host parameters. The parameters set in the Properties dialog box are recorded in the registry on each host

When you are using Network Load Balancing (NLB) Manager, you must be a member of the Administrators group on the host that you are configuring, or you must have been delegated the appropriate authority. If you are configuring a cluster or host by running NLB Manager from a computer that is not part of the cluster, you do not have to be a member of the Administrators group on that computer.

To ensure that Network Load Balancing Manager is displaying the most recent host information, right-click the cluster and click Refresh. This step is necessary because the host properties that Network Load Balancing Manager displays are a copy of the host properties that were configured the last time Network Load Balancing Manager connected to that host. When you click Refresh, Network Load Balancing Manager reconnects to the cluster and displays updated information.

To configure Network Load Balancing host parameters

  1. To open NLB Manager, click Start, click Administrative Tools, and then click Network Load Balancing Manager. You can also open NLB Manager by typing Nlbmgr at a command prompt.

  2. If NLB Manager does not list the cluster, connect to the cluster.

  3. Right-click the host that you want to configure, and then click Host Properties.

  4. On the Host Parameters tab, specify values for Priority (unique host identifier), IP address, and Subnet mask, and select an initial host state.


Changes to NLB parameters are applied when you click OK in the Properties dialog box. Clicking OK stops NLB (if it is running), reloads the parameters, and then restarts cluster operations.

Additional references

Network Load Balancing Manager Properties

Setting Network Load Balancing Parameters