Patent ID: 6330242
Filing Date: 2001-12-11
Classification: H04L,H04Q

Abstract:
A loose source routing system comprising:a transmission source gateway for dissolving an IP packet, sent thereto from a first user LAN, into a plurality of ATM cells, which are transmitted to an ATM network;at least one ATM node, provided in the ATM network, for detecting a destination address of the IP packet from the ATM cells and for rewriting VPI/VCI of the ATM cells of the IP packet in accordance with the detected destination address so as to transfer the ATM cells in a prescribed cource of the ATM network; anda transfer destination gateway for receiving the ATM cells, which are transferred thereto over the ATM network by way of the ATM node, and for assembling the ATM cells into an IP packet, which is then sent to a second user LAN,wherein the transmission source gateway is equipped with BOM cell addition means for adding at least one BOM cell at a top place of the ATM cells of the IP packet, so that the BOM cell designates an address of the ATM node through which the ATM cells of the IP packet pass.