Interest return control message

A computer system for facilitating forwarding of packets, the system comprising:

• a processor;
• and
• a storage device for storing instructions that, when executed by the processor, cause the processor to perform a method, the method comprising
• receiving, by a first node, a packet corresponding to a content-centric network (CCN) message, wherein a name for the CCN message is a hierarchically structured variable length identifier (HSVLI) comprising contiguous name components ordered from a most general level to a most specific level;
• responsive to detecting an error condition while processing the CCN message, generating an interest return message which includes a data structure and a copy of the CCN message, wherein the data structure is pre-pended to the copy of the CCN message, wherein the data structure comprises a fixed header that includes a length of a payload field from the CCN message, an interest return header indicating the error condition, and an encapsulation header indicating an original fixed header and one or more optional headers from the CCN message, wherein the encapsulation header includes a header length field from the CCN message;
• and
• transmitting the interest return message to a second node.

A non-transitory, computer-readable storage medium storing instructions that, when executed by a computer, cause the computer to perform a method, the method comprising:

• receiving, by a first node, a packet corresponding to a content-centric network (CCN) message, wherein a name for the CCN message is a hierarchically structured variable length identifier (HSVLI) comprising contiguous name components ordered from a most general level to a most specific level;
• responsive to detecting an error condition while processing the CCN message, generating an interest return message which includes a data structure and a copy of the CCN message, wherein the data structure is pre-pended to the copy of the CCN message, wherein the data structure comprises a fixed header that includes a length of a payload field from the CCN message, an interest return header indicating the error condition, and an encapsulation header indicating an original fixed header and one or more optional headers from the CCN message, wherein the encapsulation header includes a header length field from the CCN message;
• and
• transmitting the interest return message to a second node.