System and method for end-to-end threshold setting

• US 5,796,723 A
• Filed: 06/28/1996
• Issued: 08/18/1998
• Est. Priority Date: 06/28/1996
• Status: Expired due to Term

• Current Assignee: Verizon Patent and Licensing Incorporated (Verizon Communications Inc.)
• Original Assignee: MCI Communications Corporation (Verizon Communications Inc.)
• Inventors: Brownmiller, Curtis, Tran, Minh T., Bencheck, Michael, DeMoss, Mark, Branton, Robert, Landon, Steve
• Primary Examiner(s): Patel, Ajit
• Application Number:
  US08/670,845
• Time in Patent Office: 781 Days
• Field of Search: 370/229, 370/230, 370/231, 370/235, 370/236, 370/252, 370/253, 370/241, 370/242, 370/216, 370/245, 370/244, 395/180, 395/181, 395/183.01, 395/184.01, 395/185.01, 395/185.03, 395/185.04, 340/825.06, 340/825.16
• US Class Current: 370/252
• CPC Class Codes: H04J 2203/0071 Monitoring
• CPC Class Codes: H04J 3/14 Monitoring arrangements for SDH/SONET rings H04J3/085
• CPC Class Codes: H04L 41/0677 Localisation of faults
• CPC Class Codes: H04L 41/5009 Determining service level performance parameters or violations of service level contracts, e.g. violations of agreed response time or mean time between failures [MTBF]
• CPC Class Codes: H04L 41/5054 Automatic deployment of services triggered by the service manager, e.g. service implementation by automatic configuration of network components
• CPC Class Codes: H04L 43/0847 Transmission error
• CPC Class Codes: H04L 43/16 Threshold monitoring
• CPC Class Codes: H04Q 11/0478 Provisions for broadband connections

Abstract

A system and method for performance monitoring of a telecommunications network that uses a layered performance monitoring structure. First, the monitoring points within the network are identified according to a customer request. The customer request is used to generate a service provisioning request, which indicates the path endpoints and the desired level of service. If the service is a digital data service and is supported for monitoring purposes, the network elements closest to the path endpoints are identified as primary monitoring points and activated, and based upon the desired level of service, a number of intermediate secondary points along the path are also identified but not activated. If the service is not a digital data service but the customer desires monitoring, then monitoring points are similarly identified and activated. Second, an end-to-end threshold is set for each service requiring thresholding per the service provisioning request. Third, previously identified secondary monitoring points are activated in the event that a degradation or failure is detected at the path endpoints. Upon an indication of trouble, the higher performance monitoring layers command the lower layers to perform trouble isolation processing, during which the lower layers determine which secondary monitoring points must be activated to determine the origin of the problem. The higher layers command the lower layers to commence activation.

Claims

1. A method of setting end-to-end thresholds for measuring and monitoring circuits in a telecommunications network, comprising the steps of:

(1) receiving a service provisioning request identifying termination points and a level of service identifying a quality of service desired by a customer;

(2) identifying a path topology for a provisioned channel between said termination points, said provisioned channel having said level of service;

(3) if one or more monitoring points for monitoring a performance of said circuits have not been preassigned for said provisioned channel, assigning one or more monitoring points for monitoring a performance of said circuits along said provisioned channel;

(4) setting the end-to-end thresholds for said provisioned channel by assigning threshold levels at said one or more monitoring points based upon said service provisioning request to indicate when said one or more monitoring points are required to report an error or a potential occurrence of an error.

2. The method of claim 1, wherein step (2) further comprises the step of:

submitting a request to a network management application to retrieve the possible paths between said termination points.

3. The method of claim 1, wherein step (3) further comprises the steps of:

(a) retrieving monitoring point requirements from. said service provisioning request;

(b) identifying the location of monitoring points along said path topology.

4. The method of claim 3, wherein step (b) comprises the steps of:

locating primary monitoring points at or near the ends of said path topology or at network elements located at points of demarcation that distinguish the facilities of an interexchange carrier from the facilities of a local exchange carrier.

5. The method of claim 3, wherein step (b) comprises the steps of:

locating secondary monitoring points at network elements located at intermediate positions along said path topology, and

wherein the number of secondary monitoring points selected is based upon the level of service provided in the service provisioning request.

6. The method of claim 1, wherein step (4) comprises:

setting an end-to-end threshold for said path topology based upon the location of said termination points and said level of service.

7. The method of claim 1, comprising:

setting said end-to-end threshold based upon the length of circuits comprising said provisioned channel.

8. The method of claim 1, wherein each of said end-to-end thresholds reflects an acceptable tolerance in the quality of a service specified in said service provisioning request.

9. A system of setting end-to-end threshold levels for measuring and monitoring circuits in a telecommunications network, comprising:

means for receiving a service provisioning request identifying termination points and a level of service identifying a quality of service desired by a customer;

means for identifying a path topology for a provisioned channel between said termination points, said provisioned channel having said level of service;

means for assigning one or more monitoring points for monitoring a performance of said circuits along said provisioned channel, if one or more monitoring points for monitoring a performance of said circuits have not been preassigned for said provisioned channel;

means for setting the end-to-end thresholds for said provisioned channel by assigning threshold levels at said one or more monitoring points based upon said service provisioning request to indicate when said one or more monitoring points are required to report an error or a potential occurrence of an error.

10. The system of claim 9, wherein said means for identifying a path topology further comprises:

means for submitting a request to a network management application to retrieve the possible paths between said termination points.

11. The system of claim 9, wherein said means for assigning one or more monitoring points along said provisioned channel further comprises:

means for retrieving monitoring point requirements from said service provisioning request;

means for identifying the location of monitoring points along said path topology.

12. The system of claim 11, wherein said means for identifying the location of monitoring points along said path topology comprises:

means for locating primary monitoring points at or near the ends of said path topology or at network elements located at points of demarcation that distinguish the facilities of an interexchange carrier from the facilities of a local exchange carrier.

13. The system of claim 11, wherein said means for identifying the location of monitoring points along said path topology comprises:

means for locating secondary monitoring points at network elements located at intermediate positions along said path topology,

wherein the number of secondary monitoring points selected is based upon the level of service provided in the service provisioning request.

14. The system of claim 9, wherein said means for setting end-to-end thresholds for said provisioned channel comprises:

means for setting an end-to-end threshold for said path topology based upon the location of said termination points and said level of service.

15. The system of claim 9, wherein said means for setting end-to-end thresholds for said provisioned channel comprises:

means for setting said end-to-end threshold based upon the length of circuits comprising said provisioned channel.

16. The system of claim 9, wherein each of said end-to-end thresholds reflects an acceptable tolerance in the quality of a service specified in said service provisioning request.