Carrier interoperability for critical services

• US 7,870,263 B2
• Filed: 12/27/2005
• Issued: 01/11/2011
• Est. Priority Date: 12/27/2005
• Status: Expired due to Fees

• Current Assignee: SBC Knowledge Ventures LP (AT&T, Inc.)
• Original Assignee: AT&T Intellectual Property I LP (AT&T, Inc.)
• Inventors: Raftelis, Michael, Walter, Edward
• Primary Examiner(s): Shingles; Kristie D
• Application Number:
  US11/317,020
• Publication Number:
  US 20070150615A1
• Time in Patent Office: 1,841 Days
• Field of Search: 709/227, 709/228, 709/238, 709/239
• US Class Current: 709/227
• CPC Class Codes: H04L 45/00 Routing or path finding of packets in data switching networks routing or path finding in wireless networks H04W40/00
• CPC Class Codes: H04L 45/04 Interdomain routing, e.g. hierarchical routing
• CPC Class Codes: H04L 45/124 using a combination of metrics
• CPC Class Codes: H04L 45/22 Alternate routing
• CPC Class Codes: H04L 45/28 using route fault recovery
• CPC Class Codes: H04L 45/302 Route determination based on requested QoS
• CPC Class Codes: H04L 45/3065 for real time traffic

Abstract

A system processes communication path requests in an autonomous system. The system includes a proxy server that receives a request message from an external system requesting establishment of a communication path through the autonomous system. The request message includes a desired communication path profile including a desired level of redundancy. The system also includes a management server in the autonomous system that receives the request message from the proxy server, generates a response message indicating whether a communication path corresponding to the desired communication path profile is available, and sends the response message to the proxy server. The proxy server receives the response message and transmits the response message to the external system.

Claims

1. A computer-readable storage medium, executable by a computer, storing a program for processing communication path requests, the computer-readable storage medium comprising:

a request receiving code segment that receives an external request message from an external system requesting establishment of a communication path through an autonomous system, the request message comprising a desired communication path profile including a desired level of communication path redundancy;

a sending code segment that sends the request message to an identified server of the autonomous system;

a response receiving code segment that receives a response message from the identified server, the response message indicating whether the communication path corresponding to the desired communication path profile is available, and, when the communication path corresponding to the desired communication path profile is unavailable, the response message further indicating at least one alternative communication path;

a transmitting code segment that transmits the response message to the external system;

an order receiving code segment that receives an order message from the external system and sends the order message to the identified server, the order message instructing one of establishment of the communication path corresponding to the desired communication path profile and one of establishment of the at least one alternative communication; and

a communication path establishing code segment that establishes a communication path according to the order message.

2. The computer-readable storage medium according to claim 1, wherein the desired communication path profile includes criteria for at least one of latency, jitter, reliability, number of hops, geographic areas, and duplicate nodes.

3. The computer-readable storage medium according to claim 1, wherein the request message and the response message include a transaction identifier, the transaction identifier being the same for the request message and the response message.

4. A computer-readable storage medium, executable by a computer, storing a program for processing communication path requests, the computer-readable storage medium comprising:

a receiving code segment that receives, from a proxy server, a request message from an external system requesting establishment of a communication path through an autonomous system, the request message comprising a desired communication path profile including a desired level of communication path redundancy;

a first determining code segment that determines whether the communication path corresponding to the desired communication path profile is available;

a second determining code segment that determines at least one alternative communication path when the first determining code segment determines that the communication path corresponding to the desired communication path profile is unavailable;

a generating code segment that generates a response message indicating whether the communication path through the autonomous system corresponding to the desired communication path profile is available, and, when the first determining code segment determines that the communication path corresponding to the desired communication path profile is unavailable, the response message further indicating the at least one alternative communication path determined by the second determining code segment;

a sending code segment that sends the response message to the proxy server;

an order receiving code segment that receives, from the proxy server, an order message from the external system instructing one of establishment of the communication path corresponding to the desired communication path profile and one of establishment and rejection of the at least one alternative communication path; and

a communication path establishing code segment that establishes a communication path according to the order message.

5. The computer-readable storage medium according to claim 4, wherein the desired communication path profile includes criteria for at least one of latency, jitter, reliability, hops, geographic areas, and duplicate nodes.

6. The computer-readable storage medium according to claim 4, wherein the request message and the response message include a transaction identifier, the transaction identifier being the same for the request message and the response message.

7. The computer-readable storage medium according to claim 4, in which the response message further indicates a request denial when the second determining code segment determines that the alternative communication path is unavailable.

8. A system for processing communication path requests in an autonomous system comprising:

a proxy server that receives a request message from an external system requesting establishment of a communication path through the autonomous system, the request message comprising a desired communication path profile including a desired level of communication path redundancy; and

a management server in the autonomous system that receives the request message from the proxy server, determines whether the communication path corresponding to the desired communication path profile is available, determines at least one alternative communication path when it determines that the communication path corresponding to the desired communication path profile is unavailable, generates a response message indicating whether the communication path corresponding to the desired communication path profile is available and further indicating the at least one alternative communication path when the communication path corresponding to the desired communication path profile is unavailable, and sends the response message to the proxy server,

wherein the proxy server receives the response message from the management server and transmit the response message to the external system,

wherein the proxy server receives an order message from the external system and sends the order message to the management server, the order message instructing one of establishment of the communication path corresponding to the desired communication path profile and one of establishment and rejection of the at least one alternative communication path, and

wherein the management server receives the order message from the proxy server, and establishes a communication path according to the order message.

9. The system according to claim 8, wherein the management server has access to information regarding the autonomous system'"'"'s resources.

10. The system according to claim 9, wherein the proxy server serves a plurality of management servers, and each of the plurality of management servers serves a network.

11. The system according to claim 8, wherein the desired communication path profile includes criteria for at least one of latency, jitter, reliability, hops, geographic areas, and duplicate nodes.

12. The system according to claim 8, wherein the request message and the response message include a transaction identifier, the transaction identifier being the same for the request message and the response message.