Patent Number: 7,821,942

Title: Controlling data flow through a data communications link

Abstract: Controlling data flow through a data communications link, the link operating according to a data communications protocol in which a receiver of data communications on the link can suspend data communications on the link for a period of time determined by the receiver, including specifying for the sender a duration for flow control periods; specifying for the sender a number of corrupt communications control packets to be transmitted from the sender to the receiver during a flow control period; determining by the sender whether a flow control message is received from the receiver during a flow control period; altering, in dependence upon whether a flow control message is received from the receiver during a flow control period, the number of corrupt communications control packets; and transmitting, among normal data communications during a subsequent flow control period, the altered number of corrupt communications control packets from the sender to the receiver.

Inventors: Bauman; Ellen M. (Rochester, MN), Schimke; Timothy J. (Stewartville, MN), Sendelbach; Lee A. (Rochester, MN)

Assignee: International Business Machines Corporation

International Classification: H04J 1/16 (20060101)

Expiration Date: 2018-10-26 0:00:00