ATM VLAN multi-protocol client-server system using layer-3 header of packets for transporting connectionless and connection-oriented traffic

摘要

In an ATM network, each logical subnetwork comprises a server for resolving an ATM address using layer-3 address of request message and routing a packet to the network by using a layer-3 address of the packet. A source client examines a layer-3 header of a packet to determine whether its mode of transmission is connection-oriented or connectionless, and transmits the packet, if it is connectionless, to the server for causing it to route the packet through the network, and transmits, if the packet is connection-oriented, an ATM address resolution request message to the server. The source client receives a reply message from the server containing a resolved ATM address, and transmits a signaling message containing the resolved ATM address to the network to establish a connection. Over the established connection, the source client transmits data packets.