Multiplex communications – Wide area network – Packet switching
Patent
1992-05-15
1993-11-09
Safourek, Benedict V.
Multiplex communications
Wide area network
Packet switching
3701101, H04L 116
Patent
active
052609332
ABSTRACT:
A system and method for controlling the transmission of frames or packets of data in a serial network which allows out-of-order delivery. The data frames transmitted by the initiator node to the recipient node include frame serial number or sequence count information. Acknowledgment frames, transmitted by the recipient node to indicate delivery of the data frame or packet, include matching serial number or sequence count information. According to one form of the present invention, the initiator node and recipient node include resources which relate the serial number or sequence count information, resources which include control information in the acknowledgment frame, and resources which determine the transmit status of all acknowledgment frames prior to that specified by serial number or sequence count in the acknowledgment frame. The status information is used at the initiator node to update the status of any data frames whose acknowledgment has not been received as a consequence of an out-of-order delivery to the recipient, a delay in processing by the recipient, a delay of the acknowledgment frame in the transmission back to the initiator node, or a complete loss of the acknowledgment frame.
REFERENCES:
patent: 4970714 (1990-11-01), Chen et al.
patent: 5042029 (1991-08-01), Hayakawa
patent: 5119370 (1992-06-01), Terry
patent: 5151899 (1992-09-01), Thomas et al.
patent: 5189669 (1993-02-01), Nunokawa
American National Standard for Information Systems, Fibre Channel, Physical and Signaling Interface (FC-PH), Rev. 2.2, Jan. 24, 1992, pp. 110-111 (def of ACK.sub.-- 1 and ACK.sub.-- N), p. 155 (Infinite Buffers & ACK.sub.-- N), pp. 181-182 (ACK-1 Rules and ACK.sub.-- N Rules), p. 204 (29.2.4.3), pp. 277-279 (Annex N.) and pp. 308-309 (Annex T).
International Business Machines - Corporation
Safourek Benedict V.
Salys Casimer K.
LandOfFree
Acknowledgement protocol for serial data network with out-of-ord does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Acknowledgement protocol for serial data network with out-of-ord, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Acknowledgement protocol for serial data network with out-of-ord will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1148297