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. 21, 2017

Filed:

Apr. 28, 2009
Applicants:

Alpesh S. Patel, Morrisville, NC (US);

Chris O'rourke, Apex, NC (US);

Udayakumar Srinivasan, Fremont, CA (US);

Mark Albert, Cary, NC (US);

Inventors:

Alpesh S. Patel, Morrisville, NC (US);

Chris O'Rourke, Apex, NC (US);

Udayakumar Srinivasan, Fremont, CA (US);

Mark Albert, Cary, NC (US);

Assignee:

Cisco Technology, Inc., San Jose, CA (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F 15/173 (2006.01); G06F 9/48 (2006.01); H04L 12/803 (2013.01); H04L 12/26 (2006.01); G06F 9/50 (2006.01);
U.S. Cl.
CPC ...
G06F 9/4862 (2013.01); G06F 9/5083 (2013.01); H04L 43/08 (2013.01); H04L 47/125 (2013.01);
Abstract

Methods and apparatus for providing availability information of a virtual machine to a load balancer are disclosed. The availability information of the virtual machine may be normalized information from performance metrics of the virtual machine and performance metrics of the physical machine on which the virtual machine operates. The normalized availability of a virtual machine is provided by a feedback agent executing on the virtual machine. Alternatively, the normalized availability of a virtual machine is provided by a feedback agent executing on a hypervisor executing multiple virtual machines on a common set of physical computing hardware.


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