System for transferring ownership of transmitted data packet fro

Details System for transferring ownership of transmitted data packet fro System for transferring ownership of transmitted data packet fro

1993-12-10

1996-06-25

Lee, Thomas C.

Multiplex communications

Wide area network

Packet switching

370 60, 370 941, 3642222, 3642409, 3642844, 364DIG1, G06F 1300

Patent

active

055308082

ABSTRACT:
The present invention provides a method in a data processing system for efficiently sending a data packet from a source node to a destination node. The data processing system includes a multi-segment network having at least two segments, wherein the source node and the destination node are located within in different segments. Communication of a data packet from one segment to another segment is provided by an agent node. The present invention generates a data packet at the source node within a first segment on the multi-segment network. The data packet includes a source address, a destination address, and data. The data packet is then transmitted within the first segment and the source node retains ownership of the data packet. Thereafter, the data packet is received within the first segment at an agent node. The data packet is examined to determine the destination address and then transmit it to the destination node within a second segment in the multi-segment network. The data packet is thereafter received at the destination node within the second segment and an echo packet is automatically transmitted from the destination node to the source node to indicate a successful reception of the data packet and transferring ownership of the data packet from the source node to the destination node.

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