Method and apparatus to avoid overloads on subscriber access lines

摘要

A communication system has special Agents in the subscriber terminals which detect the need of applications for data paths with QoS over the access network. The Agents have packet based control channels to a Remote Resource Manager installed outside the network typically as a web server and use the control channels for sending bandwidth allocation requests to the Remote Resource Manager which stores all bandwidth relevant information for a subscriber and delivers bandwidth and QoS class back to the Agents which adjust packet rate and packet QoS class marking accordingly. A Self-Sustaining Scheduler placed in the bottlenecks of the data path guarantees given delay times per QoS class and keeps packet drop rate below given limits if the Remote Resource Manager assigns bandwidth appropriately.