US 8,386,622 B2 · Method and apparatus for facilitating communication in a content centric network

Abstract

One embodiment of the present invention provides a system for facilitating communication in a content centric network (CCN). During operation, the system receives at a first node from an interest owner an interest in a piece of content. The interest indicates a structured name for the content. Furthermore, the name is unique and persistent with respect to the content, and where the name includes authentication information for the content. Next, the system determines whether content available at the first node satisfies the interest. If so, the system sends the content to the interest owner. Otherwise, the system marks the interest as pending, and forwards the interest to a second node in the network based on the interest. After receiving content from the second node in response to the forwarded interest, the system un-marks the interest as pending and sends the content to the interest owner.

Claims22

Dependent claims

A computer-executed method, comprising:

receiving, by a computing device, an interest message requesting a collection of content,
wherein the interest message indicates a structured name for the collection of content;
wherein the structured name is hierarchical and not specific to a location, and a prefix of the structured name identifies the collection of content;
and
wherein the entire hierarchical structured name, including the prefix, remains unchanged when the collection of content changes its location;
determining whether the requested collection of content corresponding to the interest message is available locally;
responsive to the requested collection of content not being available locally:
forwarding the interest message;
receiving the requested collection of content in response to the forwarded interest message;
and
sending the requested collection of content to the owner of the interest message;
and
responsive to the requested collection of content being available locally, sending the requested collection of content to the owner of the interest message.

10 more elements

A computer system, comprising:

a processor;
a memory;
a first receiving mechanism configured to receive an interest message requesting a collection of content,
wherein the interest message indicates a structured name for the collection of content;
wherein the structured name is hierarchical and not specific to a location, and a prefix of the structured name identifies the collection of content;
and
wherein the entire hierarchical structured name, including the prefix, remains unchanged when the collection of content changes its location;
a determining mechanism configured to determine whether the requested collection of content corresponding to the interest message is available locally;
a first sending mechanism configured to send the requested collection of content to an owner of the interest message in response to the requested collection of content being available locally;
a forwarding mechanism configured to forward the interest message in response to the requested collection of content not being available locally;
a second receiving mechanism, configured to receive the requested collection of content;
and
a second sending mechanism, configured to send the received collection of content to the owner of the interest message.

10 more elements

Dependencies are inferred from the claim text.

Method and apparatus for facilitating communication in a content centric network

Life of this patent

Method and apparatus for facilitating communication in a content centric network

Life of this patent

Abstract

Claims22