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.

Date of Patent:
Mar. 17, 2015

Filed:

Dec. 06, 2012
Applicant:

International Business Machines Corporation, Armonk, NY (US);

Inventors:

David A. Christenson, Fergus Falls, MN (US);

James Venuto, Poughkeepsie, NY (US);

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G06F 15/177 (2006.01); H04L 12/24 (2006.01); H04L 29/12 (2006.01);
U.S. Cl.
CPC ...
H04L 12/2429 (2013.01); H04L 41/0856 (2013.01); H04L 41/0668 (2013.01); H04L 61/2015 (2013.01);
Abstract

Techniques are described for providing a backup DHCP server using a DHCP relay agent. Embodiments retrieve DHCP server configuration information specifying a configuration of one or more DHCP servers. Additionally, embodiments monitor, at a DHCP relay agent, DHCP lease traffic between the one or more DHCP servers and one or more DHCP clients passing through the DHCP relay agent. Upon determining that the one or more DHCP servers have failed, DHCP server services are provided at the DHCP relay agent, based on the received DHCP server configuration information and the monitored DHCP lease traffic.


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