Implementation Guide › Configuration Considerations › Multiple Data Centers › Multiple Data Center Use Cases › Web Agent Communicating Across a Data Center

Web Agent Communicating Across a Data Center

If all components cannot be in the same data center, we recommend at least collocating Policy Servers and user stores in the same data center.

The following diagram illustrates:

• Applications in multiple data centers.
• Data center one only containing a web server with a SiteMinder Web Agent. The Web Agent communicates across the wide area network to a Policy Server in data center two.
• Data centers 2 and 3:
  • sharing a common view into the policy store through a master/replicated policy store.
  • using their own master/consumer user stores.
  • using a centralized replicated session store to enable single sign–on between all applications.