Configuring Port Rules

On the Port Rules tab of the Network Load Balancing Properties dialog, the filtering mode of a port rule is a configurable property. The Network Load Balancing (NLB) Provider does not define a corresponding property. Instead, each filtering mode is represented by a specific class derived from MicrosoftNLB_PortRuleEx. To access the settings of a port rule, you must create an instance of that class.

Filtering mode	Class to use
Multiple-host filtering mode	MicrosoftNLB_PortRuleLoadbalanced
Single-host filtering mode	MicrosoftNLB_PortRuleFailover
Disabled	MicrosoftNLB_PortRuleDisabled

The remaining settings shown on the Port Rules tab of the Network Load Balancing Properties dialog are accessed using the properties of the MicrosoftNLB_PortRuleEx class as shown in the following table.

Setting	Property
Port range	StartPort and EndPort
Protocols	Protocol
Affinity	Affinity
Load weight	LoadWeight
Equal load checkbox	EqualLoad
Handling priority	Priority