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