Managing interworking communications protocols

• US 7,912,936 B2
• Filed: 08/07/2009
• Issued: 03/22/2011
• Est. Priority Date: 09/13/2000
• Status: Expired due to Fees

• Current Assignee: Nara Rajagopalan
• Original Assignee: Nara Rajagopalan
• Inventors: Rajagopalan, Nara
• Primary Examiner(s): LIN, WEN TAI
• Application Number:
  US12/537,898
• Publication Number:
  US 20090300159A1
• Time in Patent Office: 592 Days
• Field of Search: None
• US Class Current: 709/223
• CPC Class Codes: H04L 12/4641 Virtual LANs, VLANs, e.g. virtual private networks [VPN] LAN interconnection over a bridge based backbone H04L12/462; encapsulation techniques H04L12/4633; routing of packets H04L45/00; packet switches H04L49/00; virtual private networks for security H04L63/0272
• CPC Class Codes: H04L 69/18 Multiprotocol handlers, e.g. single devices capable of handling multiple protocols

Abstract

Systems and methods for managing interworking protocols are provided. According to one embodiment, a policy-based provisioning methodology is used by a service management system (SMS) to provision subscriber interfaces of service processing switches based upon parameters of a predefined policy. The subscriber interfaces communicate data in accordance with a first protocol. The parameters include a window size, a window timeout, a number of allowed bad events, an event window size and/or a keep-alive interval. Transport network interfaces, which communicate in accordance with a second protocol, are provisioned to provide a transport between the subscriber interfaces. A first-protocol-over-second-protocol (FPoSP) Virtual Private Network (VPN) is created through which the subscriber sites securely exchange data by establishing a virtual router (VR) corresponding to each subscriber interface. The VRs encapsulate packets received from the subscriber sites within packets of the second protocol and transmit the encapsulated packets through the transport network interfaces.

Claims

1. A computerized method for managing interworking protocols comprising the following computer-implemented steps:

a service management system (SMS), communicatively coupled with a plurality of service processing switches of a service provider, operable to automatically establish a logical network connection among a plurality of subscriber sites, using a policy-based provisioning methodology to provision subscriber interfaces of service processing switches associated with the plurality of subscriber sites based upon parameters of a predefined policy, the subscriber interfaces configured to communicate data in accordance with a first protocol, the parameters including one or more of a window size, a window timeout, a number of allowed bad events, an event window size and a keep-alive interval;

the SMS provisioning transport network interfaces of the service processing switches to provide a transport between the subscriber interfaces, the transport network interfaces communicating in accordance with a second protocol; and

the SMS creating a first-protocol-over-second-protocol (FPoSP) Virtual Private Network (VPN) through which the plurality of subscriber sites securely exchange data by establishing a virtual router (VR) within the service processing switches corresponding to each subscriber interface, the VRs communicate the data between the service processing switches by encapsulating packets received from the plurality of subscriber sites within packets of the second protocol and transmitting the encapsulated packets through the transport network interfaces.

2. The computerized method of claim 1, wherein the first protocol comprises a frame relay protocol.

3. The computerized method of claim 1, wherein the second protocol comprises a Transmission Control Protocol/Internet Protocol (TCP/IP) protocol.

4. The computerized method of claim 1, wherein the second protocol comprises an Internet Protocol Security (IPSec) protocol.

5. The computerized method of claim 1, wherein the first protocol comprises an Asynchronous Transfer Mode (ATM) protocol.

6. The computerized method of claim 1, wherein said provisioning transport network interfaces utilizes the parameters from the predefined policy.

7. A service processing system comprising:

a first service processing switch including a first plurality of processing elements;

a second service processing switch including a second plurality of processing elements; and

a service management system (SMS), communicably coupled to the first service processing switch and the second service processing switch, operable to automatically establish a logical network connection between subscriber sites associated with the first service processing switch and the second service processing switch by;

provisioning a first subscriber interface of the first service processing switch using a policy-based provisioning methodology based upon parameters of a predetermined policy definition, the first subscriber interface configured to communicate data in accordance with a first protocol, the parameters including one or more of a window size, a window timeout, a number of allowed bad events, an event window size and a keep-alive interval;

provisioning a second subscriber interface of the second service processing switch using the policy-based provisioning methodology based upon the parameters of the predetermined policy definition, the second subscriber interface configured to communicate data in accordance with the first protocol;

provisioning transport network interfaces of the first service processing switch and the second service processing switch to provide a transport between the first subscriber interface and the second subscriber interface, the transport network interfaces communicating in accordance with a second protocol; and

creating a first-protocol-over-second-protocol (FPoSP) Virtual Private Network (VPN) through which the subscriber sites securely exchange data by establishing a first virtual router (VR) corresponding to the first subscriber interface and a second VR corresponding to the second subscriber interface, the first VR and the second VR communicate the data between the first service processing switch and the second service processing switch by encapsulating packets received from the subscriber sites within packets of the second protocol and transmitting the encapsulated packets through the transport network interfaces.

8. The service processing system of claim 7, wherein the first protocol comprises a frame relay protocol.

9. The service processing system of claim 7, wherein the second protocol comprises a Transmission Control Protocol/Internet Protocol (TCP/IP) protocol.

10. The service processing system of claim 7, wherein the second protocol comprises an Internet Protocol Security (IPSec) protocol.

11. The service processing system of claim 7, wherein the first protocol comprises an Asynchronous Transfer Mode (ATM) protocol.

12. A non-transitory computer-readable storage medium having stored thereon instructions, which when executed by one or more processors of a service management system (SMS) of a service provider that is operable to automatically establish a logical network connection among a plurality of subscriber sites through a plurality of service processing switches to which the SMS is communicatively coupled, cause a method to be performed comprising the following computer-implemented steps:

provisioning subscriber interfaces of the plurality of service processing switches using a policy-based provisioning methodology based upon parameters of a predefined policy, the subscriber interfaces configured to communicate data with corresponding subscriber sites of the plurality of subscriber sites in accordance with a first protocol, the parameters including one or more of a window size, a window timeout, a number of allowed bad events, an event window size and a keep-alive interval;

provisioning transport network interfaces of the plurality of service processing switches to provide a transport between the subscriber interfaces, the transport network interfaces communicating in accordance with a second protocol; and

creating a first-protocol-over-second-protocol (FPoSP) Virtual Private Network (VPN) through which the plurality of subscriber sites securely exchange data by establishing a virtual router (VR) within the plurality of service processing switches for each of the subscriber interfaces, the VRs communicate the data between the plurality of service processing switches by encapsulating packets received from the plurality of subscriber sites within packets of the second protocol and transmitting the encapsulated packets through the transport network interfaces.

13. The non-transitory computer-readable storage medium of claim 12, wherein the first protocol comprises a frame relay protocol.

14. The non-transitory computer-readable storage medium of claim 12, wherein the second protocol comprises a Transmission Control Protocol/Internet Protocol (TCP/IP) protocol.

15. The non-transitory computer-readable storage medium of claim 12, wherein the second protocol comprises an Internet Protocol Security (IPSec) protocol.

16. The non-transitory computer-readable storage medium of claim 12, wherein the first protocol comprises an Asynchronous Transfer Mode (ATM) protocol.