CONTENT FILTERING FOR INFORMATION CENTRIC NETWORKS

• US 20160119234A1
• Filed: 10/27/2014
• Published: 04/28/2016
• Est. Priority Date: 10/27/2014
• Status: Active Grant

• Current Assignee: Telefonaktiebolaget LM Ericsson
• Original Assignee: Telefonaktiebolaget LM Ericsson
• Inventors: VALENCIA LOPEZ, Carlos, ROYON, Yvan
• Granted Patent: US 9,762,490 B2
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: H04L 45/745 Address table lookup; Address filtering
• CPC Class Codes: H04L 49/15 Interconnection of switching modules
• CPC Class Codes: H04L 63/0245 Filtering by information in the payload
• CPC Class Codes: H04L 63/10 for controlling access to devices or network resources
• CPC Class Codes: H04L 63/102 Entity profiles
• CPC Class Codes: H04L 63/20 for managing network security; network security policies in general filtering policies H04L63/0227
• CPC Class Codes: H04L 67/306 User profiles
• CPC Class Codes: H04L 67/63 Routing a service request depending on the request content or context

Abstract

A method provides filtering of content objects on a per user basis at a gateway node in a content centric networking (CCN) network. The gateway node has a network interface with a network of a user device originating a CCN interest packet. The method includes receiving a CCN interest packet including a CCN name and a user identity, retrieving a content object identified by the CCN name, and retrieving allowed categories of the user. The method further includes retrieving categories of the content object, checking whether allowed categories of the user enable retrieval of the content object based on comparison with the categories of the content object, and forwarding the content object to user in response to the allowed categories enabling retrieval of the content object for the user.

Claims

1. A method for filtering content objects on a per user basis at a gateway node in a content centric networking (CCN) network, where the gateway node has a network interface with a network of a user device originating a CCN interest packet, the method comprising the steps of:

receiving a CCN interest packet including a CCN name and a user identity;

retrieving a content object identified by the CCN name;

retrieving allowed categories of the user;

retrieving categories of the content object;

checking whether allowed categories of the user enable retrieval of the content object based on comparison with the categories of the content object; and

forwarding the content object to user in response to the allowed categories enabling retrieval of the content object for the user.

2. The method of claim 1, further comprising the step of:

checking whether user is only requester for the content object in pending interest table.

3. The method of claim 2, further comprising the step of:

removing a pending interest from the pending interest table.

4. The method of claim 1, further comprising the step of:

removing pending interest for network interface of user, in response to additional requesters found in the pending interest table.

5. The method of claim 1, further comprising the step of:

caching the content object that is received via an external network interface in response to the content interest packet.

6. A network device implementing a method for filtering content objects on a per user basis at a gateway node in a content centric networking (CCN) network, where the gateway node has a network interface with a network of a user device originating a CCN interest packet, the network device comprising:

a non-transitory computer-readable medium having stored therein a filter module; and

a network processor coupled to the non-transitory computer-readable medium, the network processor configured to execute the filter module, the filter module configured to receive a CCN interest packet including a CCN name and a user identity, to retrieve a content object identified by the CCN name, to retrieve allowed categories of the user, to retrieve categories of the content object, to check whether allowed categories of the user enable retrieval of the content object based on comparison with the categories of the content object, and to forward the content object to user in response to the allowed categories enabling retrieval of the content object for the user.

7. The network device of claim 6, wherein the network processor is further configured to execute the filter module that is configured to check whether user is only requester for the content object in pending interest table.

8. The network device of claim 6, wherein the network processor is further configured to execute the filter module that is configured to remove a pending interest from the pending interest table.

9. The network device of claim 6, wherein the network processor is further configured to execute the filter module that is configured to remove pending interest for network interface of user, in response to additional requesters found in the pending interest table.

10. The network device of claim 6, wherein the network processor is further configured to execute the filter module that is configured to cache the content object that is received via an external network interface in response to the content interest packet.

11. A computing device implementing a plurality of virtual machines for implementing network function virtualization (NFV), wherein a virtual machine from the plurality of virtual machines is configured to execute a method for filtering content objects on a per user basis at a gateway node in a content centric networking (CCN) network, where the gateway node has a network interface with a network of a user device originating a CCN interest packet, the computing device comprising:

a non-transitory computer-readable medium having stored therein a content filter module; and

a processor coupled to the non-transitory computer-readable medium, the processor configured to execute the virtual machine, the virtual machine to execute the filter module, the filter module configured to receive a CCN interest packet including a CCN name and a user identity, to retrieve a content object identified by the CCN name, to retrieve allowed categories of the user, to retrieve categories of the content object, to check whether allowed categories of the user enable retrieval of the content object based on comparison with the categories of the content object, and to forward the content object to user in response to the allowed categories enabling retrieval of the content object for the user.

12. The computing device of claim 11, wherein the processor is further configured to execute the filter module that is configured to check whether user is only requester for the content object in pending interest table.

13. The computing device of claim 11, wherein the processor is further configured to execute the filter module that is configured to remove a pending interest from the pending interest table.

14. The computing device of claim 11, wherein the processor is further configured to execute the filter module that is configured to remove pending interest for network interface of user, in response to additional requesters found in the pending interest table.

15. The computing device of claim 11, wherein the processor is further configured to execute the filter module that is configured to cache the content object that is received via an external network interface in response to the content interest packet.

16. A control plane device to implement at least one centralized control plane for a software defined network (SDN), the centralized control plane configured to execute a method for filtering content objects on a per user basis at a gateway node in a content centric networking (CCN) network, where the gateway node has a network interface with a network of a user device originating a CCN interest packet the control plane device comprising:

a non-transitory computer-readable medium having stored therein a filter module; and

a processor coupled to the non-transitory computer-readable medium, the network processor configured to execute the filter module, the filter module configured to receive a CCN interest packet including a CCN name and a user identity, to retrieve a content object identified by the CCN name, to retrieve allowed categories of the user, to retrieve categories of the content object, to check whether allowed categories of the user enable retrieval of the content object based on comparison with the categories of the content object, and to forward the content object to user in response to the allowed categories enabling retrieval of the content object for the user.

17. The control plane device of claim 16, wherein the processor is further configured to execute the filter module that is configured to check whether user is only requester for the content object in pending interest table.

18. The control plane device of claim 16, wherein the processor is further configured to execute the filter module that is configured to remove a pending interest from the pending interest table.

19. The control plane device of claim 16, wherein the processor is further configured to execute the filter module that is configured to remove pending interest for network interface of user, in response to additional requesters found in the pending interest table.

20. The control plane device of claim 16, wherein the processor is further configured to execute the filter module that is configured to cache the content object that is received via an external network interface in response to the content interest packet.