System and method for monitoring point activation

• US 5,787,074 A
• Filed: 06/28/1996
• Issued: 07/28/1998
• 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: DeMoss, Mark, Branton, Robert, Brownmiller, Curtis, Tran, Minh T., Bencheck, Michael, Landon, Steve
• Primary Examiner(s): NGUYEN, CHAU T
• Application Number:
  US08/672,356
• Time in Patent Office: 760 Days
• Field of Search: 370/241, 370/242, 370/243, 370/244, 370/248, 370/907, 370/217, 370/218, 370/400, 371/20.1, 371/20.2, 395/183.01, 395/183.07, 395/185.01, 340/825.06, 340/825.16
• US Class Current: 370/244
• CPC Class Codes: H04J 2203/0058 Network management, e.g. Intelligent nets
• CPC Class Codes: H04J 3/14 Monitoring arrangements for SDH/SONET rings H04J3/085
• CPC Class Codes: H04J 3/1611 Synchronous digital hierarchy [SDH] or SONET H04J3/1664 takes precedence for interactions with OTN
• CPC Class Codes: H04L 41/0677 Localisation of faults
• CPC Class Codes: H04L 43/0817 by checking functioning
• 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
• CPC Class Codes: Y10S 370/907 Synchronous optical network, SONET

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 for dynamically activating performance monitoring points that have been assigned to a provisioned channel in a telecommunications network, comprising the steps of:

(1) detecting a degradation or failure at primary monitoring points located at or near end points of a provisional channel within said network;

(2) reporting the degradation or failure to a layer in a network management system;

(3) determining whether a lower layer in the network management system should commence trouble isolation processing; and

(4) activating secondary monitoring points located at intermediate points along said provisional channel.

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

reporting the degradation or failure detected at said primary monitoring points by an element management layer of said network to a service management layer of said network,

wherein element managers comprising said element management layer transmit the statuses of network elements within the respective domains thereof, and

wherein a network management layer of said network reports the degradation or failure to said service management layer of said network.

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

reporting the degradation or failure detected at said primary monitoring points by an element management layer of said network to a network management layer of said network,

wherein element managers comprising said element management layer regularly transmit the statuses of network elements within the respective domains thereof.

4. The method of claim 1, wherein step (3) comprises:

a service management layer of said network determines whether trouble isolation processing should commence,

wherein said trouble isolation processing is used to determine a highest signal transport layer and facility from which error activities originate.

5. The method of claim 1, wherein step (3) comprises:

a network management layer of said network determines that trouble isolation processing must commence,

wherein said trouble isolation processing is used to determine a highest signal transport layer and facility from which error activities originate.

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

a service management layer of said network requests a network management layer of said network to activate said secondary monitoring points, and said network management layer requests an element management layer of said network to activate said secondary monitoring points.

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

a network management layer requests an element management layer of said network to activate said secondary monitoring points.

8. A System for dynamically activating performance monitoring points that have been assigned to a provisional channel in a telecommunications network, comprising:

means for detecting a degradation or failure at primary monitoring points located at or near end points of a provisional channel within said network;

means for reporting the degradation or failure to a layer in a network management system;

means for determining whether a lower layer in the network management system should commence trouble isolation processing; and

means for activating secondary monitoring points located at intermediate points along said provisional channel.

9. The system of claim 8, wherein said reporting means comprises:

means for reporting the degradation or failure detected at said primary monitoring points by an element management layer of said network to a service management layer of said network,

wherein element managers comprising said element management layer transmit the statuses of network elements within the respective domains thereof, and

wherein a network management layer of said network reports the degradation or failure to said service management layer of said network.

10. The system of claim 8, wherein said reporting means comprises:

means for reporting the degradation or failure detected at said primary monitoring points by an element management layer of said network to a network management layer of said network,

wherein element managers comprising said element management layer regularly transmit the statuses of network elements within the respective domains thereof.

11. The system of claim 8, wherein said determining means comprises:

means for a service management layer of said network to determine whether trouble isolation processing should commence, wherein said trouble isolation processing is used to determine a highest signal transport layer and facility from which an error activity originates.

12. The system of claim 8, wherein said determining means comprises:

means for a network management layer of said network to determine that trouble isolation processing must commence,

wherein said trouble isolation processing is used to determine a highest signal transport layer and facility from which an error activity originates.

13. The system of claim 8, wherein said activating means comprises:

means for a service management layer of said network to request a network management layer of said network to activate said secondary monitoring points, and said network management layer requests an element management layer of said network to activate said secondary monitoring points.

14. The system of claim 8, wherein said activating means comprises:

means for a network management layer to request an element management layer of said network to activate said secondary monitoring points.