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. 07, 2014
Filed:
Mar. 09, 2009
Aled Edwards, Charfield South, GB;
Anna Fischer, Bristol, GB;
Patrick Goldsack, Bristol, GB;
Hewlett-Packard Development Company, L.P., Houston, TX (US);
Abstract
A data center can share processing resources using virtual networks. A hosting programhosts one or more virtual machines. The program has a virtual interface VIF, to the virtual machines, a network interfaceto enable communication between the virtual machines and other nodes of a network, and an infrastructure management interface, invisible to the virtual machines. The program has an intercept functionimplemented as a comparator, switch or router, arranged to intercept a status message from one of the virtual machines, or applications run by that virtual machine. The status indication is sent to a status bufferand is made available to the infrastructure management interface without providing a network path between the management interface and the virtual machine. This can discriminate between VM failure and communication failure, and the invisibility maintains isolation and helps avoid vulnerability to denial of service attack.