Implementation Guide › Performance Tuning › Web Tier Performance › Reduce Traffic between Your Web Agents and the Policy Server › Other Parameters That Affect Web Agent Performance › Policy Server Poll Interval Parameter

Policy Server Poll Interval Parameter

Web Agents contact the Policy Server regularly to receive any updated policies or encryption keys. The time interval for contacting the Policy Server can be adjusted by changing the PSPollInterval Web Agent configuration parameter.

Increasing the time interval can reduce unnecessary traffic between the Web Agents and the Policy Server. Consider increasing the interval when your SiteMinder environment has any of the following characteristics:

• You have many Web Agents.
• Most of the SiteMinder policies are static, and do not change often.

  Note: For more information, see the Web Agent Configuration Guide.

Important! Increasing the PSPollInterval parameter also affects how quickly the Web Agents enforce SiteMinder policy changes. For example, suppose you change a Policy to revoke access for a terminated employee at 10:30, and your PSPollInterval parameter has a value of 3600 (the number of seconds in an hour). The Web Agents would not enforce the changed policy until as late as 11:30.