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:
May. 21, 1996
Filed:
Sep. 21, 1994
Wade C Allen, Durham, NC (US);
Mark C Zelek, Cary, NC (US);
International Business Machines Corporation, Armonk, NY (US);
Abstract
Problems with prior OSI (Open Systems Interconnected) event forwarding discriminators (EFD) are solved in accordance with this invention by creating a new type of EFD, called a notification forwarding discriminator (NFD). An NFD works just like an EFD in that it receives notifications emitted by managed objects and determines what types of notifications should be forwarded. However, the forwarding mechanism in an NFD is completely different. An NFD has two operations that a management application can use to control subscription to notifications, 'start' and 'stop'. An NFD forwards notifications via responses to a solicited 'start' operation without signaling the end of the 'start' operation. Hence, a 'start' operation will always be pending completion. The manager and agent track this pending status of operations between a manager and an NFD. Both the manager and agent maintain a pending completion list for each link between a manager and agent. There is a one-to-one correspondence between each manager and the link over which requests go to a given NFD through an agent. Multiple applications using the manager may send multiple start operation requests through the manager, through the agent and to the NFD.