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:
Jan. 06, 2004
Filed:
Apr. 14, 2000
Edward Glen Britton, Chapel Hill, NC (US);
Michael G. Fitzpatrick, Raleigh, NC (US);
Jeffrey Douglas Haggar, Holly Springs, NC (US);
Maurice Isrel, Jr., Raleigh, NC (US);
Andrew Henry Richter, Raleigh, NC (US);
Barton Clark Vashaw, Apex, NC (US);
International Business Machines Corporation, Armonk, NY (US);
Abstract
The invention ensures that a single and consistent reply is made to an ARP request in a system of connected IP networks. When an adapter becomes active, the relative network on which it resides is determined by transmitting control packets over it and all other adapters known to the host and observing if and where responses are returned to the adapters. One adapter on a network is designated as active. If the same network contains other adapters, they are marked as standby adapters for the purpose of responding to ARP messages. Special processing is provided for offload adapters that perform there own ARP processing.