State-based policy management method for a communications transport network, a network element and a policy server for its implementation

摘要

In a communications transport network (ITN) of the type comprising a plurality of network elements (NE), a policy network is provided comprising a policy server (PS) and a plurality of policy clients (PC) associated to network elements (NE) of the transport network (ITN); users of the transport network (ITN) are able to directly provision communications transport services. When a connection within the transport network (ITN) is removed, the or each policy client (PC) associated to this connection causes the deletion of the or each state associated to this connection within the policy server (PS) and thereafter the policy server (PS) considers this connection as removed.