The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 15, 1993
Filed:
Jan. 26, 1990
Frederic Bauchot, Saint Laurent du Var, FR;
Bruno Sappa, Nice, FR;
Victor Spagnol, Cagnes sur Mer, FR;
International Business Machines Corp., Armonk, NY (US);
Abstract
According to the invention, a data transmission system is provided with apparatus which enables the problem determination requests from any ports of the multiplex modems (18) to be processed. When a link event is detected on a port or when a solicited command is received from a host network management facility computer (10), the network control program (NCP) in the communication controller (16) checks with the associated link configuration data as to whether the involved port is port A. If is not port A, NCP looks for port A which has the same NCP correlation number as the involved port. Then, the LPDA message can be sent through port A and can reach the remote corresponding port A if necessary.