Method and proxy for transporting IP payloads over a delay-tolerant network (DTN)

摘要

The present relates to a method and a proxy for transporting IP messages over a Default Tolerant Network. The method and proxy receive a message composed of multiple IP packets payload, and create partial messages by bundling sub-groups of subsequent IP packets payload with a unique identifier and a corresponding sequence number. The partial messages are transported over the DTN. The partial messages are received at another proxy after transport over the DTN, are unbundled and ordered based on the sequence number; and delivered.

主权项

1. A method for transporting Internet Protocol (IP) packets over a Delay-Tolerant network (DTN), the method comprising:
receiving at a proxy a request from a client; assigning a unique identifier to the request at the proxy; creating a bundle header; inserting the unique identifier in the bundle header; transporting the request with the bundle header from the proxy, over the DTN, to a peer proxy; receiving the request with the bundle header including the unique identifier at the peer proxy; storing the unique identifier at the peer proxy; forwarding the request from the peer proxy to a server; receiving at the peer proxy, from the server, a response to the request composed of multiple IP packets; creating at the peer proxy partial responses by bundling sub-groups of subsequent IP packets of the multiple IP packets with corresponding sequence numbers and with the unique identifier, wherein the sub-groups of subsequent IP packets are formed by (i) assembling a number of the subsequent IP packets received at the peer proxy within a predetermined time period or by (ii) assembling a number of the subsequent IP packets received at the peer proxy until a predetermined minimum payload is reached; transporting the partial responses from the peer proxy, over the DTN, to the proxy; receiving the partial responses at the proxy; unbundling and ordering at the proxy the received partial responses based on their respective sequence numbers; and delivering from the proxy the unbundled and ordered partial responses to the client.