Method and Apparatus for route optimisation in nested mobile networks

摘要

A method of transmitting at least one data packet from a communication node in a data communication network. The method includes receiving a request at a communication node, to transmit at least one data packet to a first destination address and searching for the first destination address in a cache of the communication node. A determination of an intermediary address of the destination address is made. The destination address then is replaced with the intermediary address and the steps of searching, determining and replacing are repeated, until no new intermediary address is found. The at least one data packet is then transmit to the destination address via the identified intermediary address(es). A communication unit (corresponding node) communication message and method for building a linked binding cache are also described. In this manner, an optimised data path is determined in order to send at least one data packet to an intended recipient, for example in a nested mobile network scenario.