Claims
- 1. A method of access control in a communication network comprising the steps of:
determining a load status of the network between a call originating node and a call terminating node; determining whether the load status permits a specified quality of service; and if the specified quality of service is permitted, establishing a transport connection between the call originating node and the call terminating node.
- 2. A method of access control in a network comprising the steps of:
sending a probe packet through the network from a first node to at least one other node; updating a portion of the probe packet at each node based on the load status of the node; determining whether the load status permits a specified quality of service; and if the specified quality of service is permitted, establishing a transport connection between the at least two nodes in the network.
- 3. The method of claim 2, wherein the step of sending a probe packet through the network is performed continuously.
- 4. The method of claim 2, wherein the step of sending a probe packet through the network is performed at predetermined times.
- 5. The method of claim 2, wherein the step of sending a probe packet through the network is performed in response to a network event.
- 6. The method of claim 2, wherein the step of sending a probe packet is performed for each of a plurality of traffic classes.
- 7. An access control system in a network comprising:
at least one load measurement proxy, which probes the network to determine the congestion state of the network; a bandwidth broker server in communication with the at least one load measurement proxy and correlating the determined congestion state information; and a bandwidth broker client in communication with the bandwidth broker server and an application, wherein the bandwidth broker client queries the bandwidth broker server based on requirements of the application.
- 8. The access control system of claim 7, wherein the requirements of the application include at least two node addresses and a quality of service.
- 9. The access control system of claim 7, wherein the requirements of the application include at least one of an application traffic class, a peak bit rate, a packet delay, a delay variation, a packet loss, and a guaranteed bit rate.
- 10. The access control system of claim 7, wherein the load measurement proxy continuously probes the network.
- 11. The access control system of claim 7, wherein the load measurement proxy probes the network at predefined intervals.
- 12. The access control system of claim 7, wherein the load measurement proxy probes the network in response to a network event.
- 13. The access control system of claim 7, wherein the load measurement proxy determines the congestion state of the network for each of a plurality of traffic classes.
- 14. An access control system in a network comprising:
at least one load measurement proxy, which probes the network to determine the congestion state of the network; a bandwidth broker server in communication with the at least one load measurement proxy and correlating the determined congestion state information; and a plurality of bandwidth broker clients in communication with the bandwidth broker server and a respective one of a plurality of applications, wherein each of the plurality of bandwidth broker clients queries the bandwidth broker server based on requirements of the respective one of a plurality of applications.
CROSS-REFERENCE TO RELATED APPLICATION
[0001] This application claims the benefit of U.S. Provisional Patent Application No. 60/229,056, filed Aug. 31, 2000.
Provisional Applications (1)
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Number |
Date |
Country |
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60229056 |
Aug 2000 |
US |