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:
Dec. 09, 2025
Filed:
Mar. 28, 2024
Microsoft Technology Licensing, Llc, Redmond, WA (US);
Anish Sagar Narsian, Cupertino, CA (US);
Jiatong Wang, San Jose, CA (US);
Jonathan Paul Rosenberg, Redmond, WA (US);
Tao Deng, Campbell, CA (US);
Microsoft Technology Licensing, LLC, Redmond, WA (US);
Abstract
According to examples, a network control apparatus executes the live migration of a source bare-metal instance backed by a source software defined networking (SDN) appliance to a destination bare-metal instance associated with a destination software defined networking (SDN) appliance while minimizing data path downtime. The network control apparatus initially performs network allocations which include creating a shadow mapping. The network control apparatus triggers a forwarder on the source SDN appliance to forward data packets from network hosts destined for the source bare-metal instance to the destination SDN appliance until live migration is completed or mapping policy is updated. The mapping policy is updated by deleting shadow mapping when the live migration is complete and the source bare-metal instance is de-allocated and removed. The network control apparatus executes the live migration while minimizing the data path downtime so that applications on the destination bare-metal instance may continue to execute with minimal or no interruptions.