Network provisioning in a distributed network management architecture

• US 7,765,283 B2
• Filed: 08/13/2002
• Issued: 07/27/2010
• Est. Priority Date: 08/15/2001
• Status: Active Grant

• Current Assignee: Cisco Technology, Inc. (Cisco Systems, Inc.)
• Original Assignee: Cisco Technology, Inc. (Cisco Systems, Inc.)
• Inventors: Shkolnisky, Yoel, Stupp, Gideon, Noy, Ariel
• Primary Examiner(s): SHAW, PELING ANDY
• Application Number:
  US10/217,333
• Publication Number:
  US 20030051049A1
• Time in Patent Office: 2,905 Days
• Field of Search: 709/220, 709223-224, 709/238, 709241-244, 709/222, 709226-228, 707/10, 379/15.03, 379/201.12
• US Class Current: 709/220
• CPC Class Codes: H04L 2012/5626 Network management, e.g. Intelligent nets
• CPC Class Codes: H04L 41/044 comprising hierarchical management structures
• CPC Class Codes: H04L 41/08 Configuration management of networks or network elements address allocation H04L61/50
• CPC Class Codes: H04L 41/0806 for initial configuration or provisioning, e.g. plug-and-play
• CPC Class Codes: H04L 41/0856 by backing up or archiving configuration information
• CPC Class Codes: H04L 41/0863 by rolling back to previous configuration versions
• CPC Class Codes: H04L 41/0869 Validating the configuration within one network element
• CPC Class Codes: H04L 41/0889 Techniques to speed-up the configuration process
• CPC Class Codes: H04L 41/5022 by giving priorities, e.g. assigning classes of service
• 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

Abstract

A method for provisioning a service request in a computer network, the method including a) determining a service path within a model of the computer network from a source device component within the model, the source device component corresponding to a first network device, to a destination device component within the model, the destination device component corresponding to a second network device, b) determining for each network device corresponding to device components along the service path the configuration operations required to provision the service request, and c) configuring each of the network devices.

Claims

1. A computer implemented method, comprising:

receiving a new service request, wherein the new service request includes a request for a particular service to be provisioned on a network;

in response to receiving the new service request, determining a provisioning path, wherein the provisioning path includes one or more network devices to be configured to satisfy the new service request;

determining a set of device components along the provisioning path, wherein each of the device components represents an entity, wherein an entity is a physical or logical aspect of a network device;

wherein each device component is part of an autonomous agent, wherein each autonomous agent is comprised of one or more device components and represents an associated network device;

wherein the set of device components comprises a first device component that is part of a first autonomous agent and a second device component that is part of a second autonomous agent;

selecting a central coordinator agent to coordinate configuration changes, wherein the configuration changes are based on the new service request, wherein the central coordinator agent coordinates the configuration changes by performing the steps of;

instructing the first device component to;

a) save first state information associated with a first entity of a first network device; and

b) instruct the first network device to perform a first configuration action upon the first entity, wherein the first configuration action is based at least in part on the configuration changes;

instructing the second device component to;

a) save second state information associated with a second entity of a second network device; and

b) instruct the second network device to perform a second configuration action upon the second entity, wherein the second configuration action is based at least in part on the configuration changes;

receiving a first response from the first device component, wherein the first response indicates that the first configuration action was successful or that the first configuration action could not be carried out;

receiving a second response from the second device component, wherein the second response indicates that the second configuration action was successful or that the second configuration action could not be carried out;

upon determining that the first and second configuration actions were successful, instructing the first and second device components to cause the first and second state information to be erased;

upon determining that the first and second configuration actions could not be carried out, instructing the first and second device components to cause the first and second entities to revert to a saved state;

wherein the method is performed by one or more computing devices.

2. The method of claim 1, further comprising said device components instructing their associated network devices to revert to their previous state.

3. The method of claim 1, further comprising causing said first and second entities to revert to a saved state if any of said responses are not received within a predetermined amount of time.

4. The method of claim 1, further comprising:

any of said device components instructing its associated network device to perform said configuration actions;

if said configuration actions succeed, said network device notifying its associated device component of said success; and

if said configuration actions do not succeed, said network device notifying its associated device component of said failure and said network device reverting back to its previous state.

5. The method of claim 4, wherein said saving step comprises saving said state in a memory of said network device.

6. The method of claim 4, wherein said saving step comprises saving said state in a memory of said device component.

7. A computer-readable non-transitory storage medium storing instructions which, when executed by one or more processors, cause the one or more processors to perform:

receiving a new service request, wherein the new service request includes a request for a particular service to be provisioned on a network;

in response to receiving the new service request, determining a provisioning path, wherein the provisioning path includes one or more network devices to be configured to satisfy the new service request;

determining a set of device components along the provisioning path, wherein each of the device components represents an entity, wherein an entity is a physical or logical aspect of a network device;

wherein each device component is part of an autonomous agent, wherein each autonomous agent is comprised of one or more device components and represents an associated network device;

wherein the set of device components comprises a first device component that is part of a first autonomous agent and a second device component that is part of a second autonomous agent;

selecting a central coordinator agent to coordinate configuration changes, wherein the configuration changes are based on the new service request, wherein the central coordinator agent coordinates the configuration changes by performing the steps of;

instructing the first device component to;

a) save first state information associated with a first entity of a first network device; and

b) instruct the first network device to perform a first configuration action upon the first entity, wherein the first configuration action is based at least in part on the configuration changes;

instructing the second device component to;

a) save second state information associated with a second entity of a second network device; and

b) instruct the second network device to perform a second configuration action upon the second entity, wherein the second configuration action is based at least in part on the configuration changes;

receiving a first response from the first device component, wherein the first response indicates that the first configuration action was successful or that the first configuration action could not be carried out;

receiving a second response from the second device component, wherein the second response indicates that the second configuration action was successful or that the second configuration action could not be carried out;

upon determining that the first and second configuration actions were successful, instructing the first and second device components to cause the first and second state information to be erased;

upon determining that the first and second configuration actions could not be carried out, instructing the first and second device components to cause the first and second entities to revert to a saved state.

8. The computer-readable non-transitory storage medium of claim 7, wherein the instructions further include instructions for said device components instructing their associated network devices to revert to their previous state.

9. The computer-readable non-transitory storage medium of claim 7, wherein the instructions further include instructions for causing said first and second entities to revert to a saved state if any of said responses are not received within a predetermined amount of time.

10. The computer-readable non-transitory storage medium of claim 7, wherein the instructions further include instructions for:

any of said device components instructing its associated network device to perform said configuration actions;

if said configuration actions succeed, said network device notifying its associated device component of said success; and

if said configuration actions do not succeed, said network device notifying its associated device component of said failure and said network device reverting back to its previous state.

11. The computer-readable non-transitory storage medium of claim 10, wherein said saving step comprises saving said state in a memory of said network device.

12. The computer-readable non-transitory storage medium of claim 10, wherein said saving step comprises saving said state in a memory of said device component.