Intel

2111 NE 25th Avenue Hillsboro OR 97124 US +1 503 264 6232 David.Durham@intel.com

Level 3 Communications

1025 Eldorado Boulevard Broomfield CO 80021 US +1 720 888 1192 jboyle@Level3.net

CISCO Systems

4 Maskit St. Herzeliya Pituach 46766 IL +972 9 9700064 ronc@cisco.com

IPHighway, Inc.

55 New York Avenue Framingham MA 01701 US +1 508 620 1141 herzog@iphighway.com

AT&T Shannon Laboratory

180 Park Avenue P.O. Box 971 Florham Park NJ 07932-0971 US rajan@research.att.com

Cisco Systems

4 The Square, Stockley Park Uxbridge Middlesex UB11 1BN UK +44 20 87568693 asastry@cisco.com

This document describes a simple client/server model for supporting policy control over QoS signaling protocols. The model does not make any assumptions about the methods of the policy server, but is based on the server returning decisions to policy requests. The model is designed to be extensible so that other kinds of policy clients may be supported in the future. However, this document makes no claims that it is the only or the preferred approach for enforcing future types of policies.