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. 13, 2000
Filed:
Jan. 10, 1997
David De-Hui Chen, Cary, NC (US);
William Frank McKenzie, Raleigh, NC (US);
Keith Irwin Meyer, Raleigh, NC (US);
Leo Temoshenko, Raleigh, NC (US);
International Business Machines Corporation, Armonk, NY (US);
Abstract
A method of data retrieval reduces the number of Instrumentation message flows in a Simple Network Management Protocol (SNMP) device. The method uses 'look-ahead' algorithms whereby data items which have not yet been requested by the Agent (but are expected to be) are retrieved from Instrumentation. The method comprises the step of retrieving from the Instrumentation an entire row of data from an SNMP table whenever a GetRequest or GetNextRequest Protocol Data Unit (PDU) is issued by the Manager to the Agent. A SubAgent saves this row in anticipation of a subsequent request for another column in this same row thereby eliminating the need for further Instrumentation message flows for further data retrieval from this row. Whenever a new GetRequest is issued by the Manager, a new set of data is retrieved from the Instrumentation. The method further comprises the step of retrieving the next subsequent data item in response to a GetNextRequest against the last row in a given column thereby eliminating the need for a second message exchange at an 'end of column' condition.