My current design includes 5 sites each with its our Internet access.
Site 1 - Broker/Policy/Filtering Server and a pair of Content Gateways.
Site 2 - 5 - a pair of Content Gateways.
All sites point back to Site 1, but was wondering how others handle multiple sites. Do you use more than 1 Policy Server? I was thinking of adding a 2nd Policy Server, but if I understand it correctly the WCGs cache a Policy so is there really a need for a 2nd Policy Server?