Policy-enforcing clients query the policy server. The server checks resource availability and authority and responds accordingly. The first version of COPS will support about a dozen message types. There are at least 10 proprietary, first-generation products, some of which are complicated. Some do not share information with disparate systems.
COPS scalability is unclear.
As with intserv, maintaining state means that simple mechanisms become more complex as the number of communicating servers and clients increases, and as the database grows. Finally, the IETF s focus on policy management and COPS is work in progress. Find out more here . Inc. All rights reserved.