Patent ID: 6516000
Filing Date: 2003-02-04
Classification: H04L,H04Q

Abstract:
A method of communicating connectionless datagrams between a connection-oriented source node and a connectionless destination node over a combination of a connection-oriented network, a connectionless network, and a network spanning node selected from the group consisting of a bridge and a router, said network spanning node having a first interface on said connection-oriented network, said network spanning node having a second interface on said connectionless network, said method comprising the steps of:the source node checking its internal storage devices to determine the destination node's connectionless address; in the absence of an entry for the destination node's connectionless address in the source node's internal storage devices, transmitting a request to communicate from said connection-oriented source node to a connection request server, said request to communicate including a connectionless address of said connectionless destination node; in response to said request to communicate, said communication request server resolving said destination node's connectionless address and requesting the establishment of a connection in a single round trip communication between the transmitting source node and said communication request server by sending a first connection-oriented virtual channel identifier from said connection request server to said connection-oriented source node, said first connection-oriented virtual channel identifier corresponding to a first virtual channel between said connection-oriented source node and said network spanning node, said network spanning node utilizing said connectionless address to communicate with said connectionless destination node.