Method and Apparatus for Virtualized Network Function Chaining Management

• US 20160248858A1
• Filed: 02/24/2015
• Published: 08/25/2016
• Est. Priority Date: 02/24/2015
• Status: Active Grant

• Current Assignee: ServiceNow Incorporated
• Original Assignee: AT&T Intellectual Property I LP (AT&T, Inc.)
• Inventors: Qiu, Chaoxin, Ratcliffe, Mark A., Scruggs, Jeffrey L.
• Granted Patent: US 9,674,639 B2
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: H04L 67/10 in which an application is distributed across nodes in the network software deployment G06F8/60; multiprogramming arrangements G06F9/46
• CPC Class Codes: H04L 67/51 Discovery or management thereof, e.g. service location protocol [SLP] or web services
• CPC Class Codes: H04W 4/60 Subscription-based services using application servers or record carriers, e.g. SIM application toolkits

Abstract

A method for vNF chaining management includes receiving virtualized network function (vNF) information from a chaining client associated with a particular vNF. A service chaining catalog is updated based on the vNF information and chaining information is transmitted to peering vNFs of the particular vNF. The vNF information can indicate instantiation of a vNF and identify peering vNFs. Updates received from vNFs can be used to update the chaining catalog. Updated vNF information can then be sent to peering vNFs of the vNF which sent the update.

Claims

1. A method comprising:

receiving virtualized network function information from a chaining client associated with a particular virtualized network function;

updating a service chaining catalog based on the virtualized network function information; and

transmitting chaining information to peering virtualized network functions of the particular virtualized network function.

2. The method of claim 1, wherein the virtualized network function information indicates instantiation of the particular virtualized network function.

3. The method of claim 2, wherein the virtualized network function information identifies the peering virtualized network functions.

4. The method of claim 1, further comprising:

receiving updated virtualized network function information from the chaining client associated with the particular virtualized network function;

updating the service chaining catalog information based on the updated virtualized network function information; and

transmitting updated chaining information to peering virtualized network functions of the particular virtualized network function.

5. The method of claim 1, further comprising:

receiving a request to remove the particular virtualized network function;

updating the service chaining catalog based on the request; and

transmitting updated chaining information to the peering virtualized network functions of the particular network function, the updated chaining information indicating that the particular virtualized network function has been removed.

6. The method of claim 5, wherein the request to remove the particular virtualized network function is received from one of a virtualized network function to be removed and a network management system.

7. The method of claim 1, further comprising:

transmitting a request for updated virtualized network function information to a plurality of chaining clients, each of the plurality of chaining clients associated with a respective virtualized network function;

receiving updated virtualized network function information from each of the plurality of chaining clients;

updating the service chaining catalog based on the updated virtualized network function information; and

transmitting updated virtualized network function information to each of the plurality of chaining clients.

8. An apparatus comprising:

a processor; and

a memory to store computer program instructions, the computer program instructions when executed on the processor cause the processor to perform operations comprising;

receiving virtualized network function information from a chaining client associated with a particular virtualized network function;

updating a service chaining catalog based on the virtualized network function information; and

transmitting chaining information to peering virtualized network functions of the particular virtualized network function.

9. The apparatus of claim 8, wherein the virtualized network function information indicates instantiation of the particular virtualized network function.

10. The apparatus of claim 9, wherein the virtualized network function information identifies the peering virtualized network functions.

11. The apparatus of claim 8, the operations further comprising:

receiving updated virtualized network function information from the chaining client associated with the particular virtualized network function;

updating the service chaining catalog information based on the updated virtualized network function information; and

transmitting updated chaining information to peering virtualized network functions of the particular virtualized network function.

12. The apparatus of claim 8, the operations further comprising:

receiving a request to remove the particular virtualized network function;

updating the service chaining catalog based on the request; and

transmitting updated chaining information to the peering virtualized network functions of the particular network function, the updated chaining information indicating that the particular virtualized network function has been removed.

13. The apparatus of claim 12, wherein the request to remove the particular virtualized network function is received from one of a virtualized network function to be removed and a network management system.

14. The apparatus of claim 8, the operations further comprising:

transmitting a request for updated virtualized network function information to a plurality of chaining clients, each of the plurality of chaining clients associated with a respective virtualized network function;

receiving updated virtualized network function information from each of the plurality of chaining clients;

updating the service chaining catalog based on the updated virtualized network function information; and

transmitting updated virtualized network function information to each of the plurality of chaining clients.

15. A computer readable medium storing computer program instructions, which, when executed on a processor, cause the processor to perform operations comprising:

receiving virtualized network function information from a chaining client associated with a particular virtualized network function;

updating a service chaining catalog based on the virtualized network function information; and

transmitting chaining information to peering virtualized network functions of the particular virtualized network function.

16. The computer readable medium of claim 15, wherein the virtualized network function information indicates instantiation of the particular virtualized network function.

17. The computer readable medium of claim 16, wherein the virtualized network function information identifies the peering virtualized network functions.

18. The computer readable medium of claim 15, the operations further comprising:

receiving updated virtualized network function information from the chaining client associated with the particular virtualized network function;

updating the service chaining catalog information based on the updated virtualized network function information; and

transmitting updated chaining information to peering virtualized network functions of the particular virtualized network function.

19. The computer readable medium of claim 15, the operations further comprising:

receiving a request to remove the particular virtualized network function;

updating the service chaining catalog based on the request; and

transmitting updated chaining information to the peering virtualized network functions of the particular network function, the updated chaining information indicating that the particular virtualized network function has been removed.

20. The computer readable medium of claim 19, wherein the request to remove the particular virtualized network function is received from one of a virtualized network function to be removed and a network management system.