CACHING DATA IN AN INFORMATION CENTRIC NETWORKING ARCHITECTURE

• US 20160014027A1
• Filed: 06/08/2015
• Published: 01/14/2016
• Est. Priority Date: 07/13/2014
• Status: Active Grant

• Current Assignee: Cisco Technology, Inc. (Cisco Systems, Inc.)
• Original Assignee: Cisco Technology, Inc. (Cisco Systems, Inc.)
• Inventors: Oran, Dave, Stapp, Mark
• Granted Patent: US 9,906,447 B2
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: G06F 16/9566 URL specific, e.g. using aliases, detecting broken or misspelled links
• CPC Class Codes: H04L 45/306 Route determination based on the nature of the carried application
• CPC Class Codes: H04L 45/742 Route cache; Operation thereof
• CPC Class Codes: H04L 47/808 User-type aware
• CPC Class Codes: H04L 47/83 based on usage prediction
• CPC Class Codes: H04L 63/101 Access control lists [ACL]
• CPC Class Codes: H04L 63/102 Entity profiles
• CPC Class Codes: H04L 67/02 based on web technology, e.g. hypertext transfer protocol [HTTP]
• 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: H04L 67/561 Adding application-functional data or data for application control, e.g. adding metadata
• CPC Class Codes: H04L 67/568 Storing data temporarily at an intermediate stage, e.g. caching
• CPC Class Codes: H04L 67/63 Routing a service request depending on the request content or context

Abstract

In one implementation, a method includes receiving, via a first information centric networking (ICN) interface, a first interest message comprising a first name of a first data object. The method also includes determining whether the first data object is stored within a cache of a router based on the first interest message. The method further includes updating, when the first data object is stored within the cache of the router, the first interest message with a first indicator indicating that the first data object is stored within the cache of the router. The method further includes transmitting, via a second ICN interface, the updated first interest message when the first data object is stored within the cache of the router.

Claims

1. A method comprising:

receiving, via a first information centric networking (ICN) interface, a first interest message comprising a first name of a first data object;

determining whether the first data object is stored within a cache of a router based on the first interest message;

updating, when the first data object is stored within the cache of the router, the first interest message with a first indicator indicating that the first data object is stored within the cache of the router; and

transmitting, via a second ICN interface, the updated first interest message when the first data object is stored within the cache of the router.

2. The method of claim 1, further comprising:

receiving the first data object, wherein the first data object comprises a first parameter and wherein the first parameter indicates that the router is to update the first interest message when the router receives the first interest message comprising the first name and when the first data object is stored in the cache of the router; and

storing the first data object in the cache of the router.

3. The method of claim 2, further comprising:

transmitting, via the first ICN interface, the first data object when the first data object is stored within the cache of the router based on the first parameter, wherein the first parameter further indicates that the first data object is to be transmitted without waiting for a data message in response to the updated first interest message.

4. The method of claim 1, further comprising:

transmitting the first interest message via the second ICN interface when the first data object is not stored within the cache of the router.

5. The method of claim 2, wherein the updated first interest message further comprises a hash of the first data object.

6. The method of claim 5, further comprising:

determining whether a data message comprising the hash of the first data object is received within a timeout period when the first data object is stored within the cache of the router;

transmitting, via the first ICN interface, the first data object when the data message is received within the timeout period, wherein the first parameter further indicates that the first data object is to be transmitted after receiving the data message; and

updating a pending interest table (PIT) to indicate that the first interest message has been satisfied.

7. The method of claim 6, further comprising:

refraining from transmitting the first data object when the data message is not received within the timeout period.

8. The method of claim 5, further comprising:

determining whether a data message comprising the hash of the first data object is received within a timeout period when the first data object is stored within the cache of the router;

transmitting, via the first ICN interface, the first data object when the data message is not received within the timeout period, wherein the first parameter further indicates that the first data object is to be transmitted after the timeout period has elapsed; and

updating a pending interest table (PIT) to indicate that the first interest message has been satisfied.

9. The method of claim 1, further comprising:

incrementing a first value indicating a current number of routers between a server and a client, wherein the first indicator comprises the first value.

10. An apparatus, comprising:

a plurality of information centric networking (ICN) interfaces;

one or more processors; and

a memory comprising instructions that when executed cause the one or more processors to perform operations comprising;

receiving, via a first information centric networking (ICN) interface, a first interest message comprising a first name of a first data object;

determining whether the first data object is stored within a cache of a router based on the first interest message;

updating, when the first data object is stored within the cache of the router, the first interest message with a first indicator indicating that the first data object is stored within the cache of the router; and

transmitting, via a second ICN interface, the updated first interest message when the first data object is stored within the cache of the router.

11. The apparatus of claim 10, further comprising:

receiving the first data object, wherein the first data object comprises a first parameter and wherein the first parameter indicates that the router is to update the first interest message when the router receives the first interest message comprising the first name and when the first data object is stored in the cache of the router; and

storing the first data object in the cache of the router.

12. The apparatus of claim 11, further comprising:

transmitting, via the first ICN interface, the first data object when the first data object is stored within the cache of the router based on the first parameter, wherein the first parameter further indicates that the first data object is to be transmitted without waiting for a data message in response to the updated first interest message.

13. The apparatus of claim 10, further comprising:

transmitting the first interest message via the second ICN interface when the first data object is not stored within the cache of the router.

14. A method comprising:

receiving, via an information centric networking (ICN) interface, a first interest message comprising a first name of a first data stored on a server; and

transmitting, via the ICN interface, a first data object based on the first interest message, wherein the first data object comprises the first data and a first parameter indicating that a router is to forward additional interest messages to the server when the router receives the additional interest messages comprising the first name and when the first data is stored in a cache of the router.

15. The method of claim 14, further comprising:

receiving a second interest message, wherein the second interest message further comprises a first indicator indicating that the first data is stored within the cache of the router; and

transmitting a second data object based on the second interest message, wherein the second data object lacks the first data.

16. The method of claim 15, wherein the second data object further comprises a hash of the first data.

17. The method of claim 15, wherein the first indicator comprises a first value indicating a current number of hops between the server and a client.

18. The method of claim 15, wherein the second interest message comprises a hash of the first data.

19. The method of claim 15, further comprising:

determining that the first data object stored within the cache of the router has an error based on the hash of the first data.

20. The method of claim 15, wherein the second data object comprises a signature generated by the server.