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:
Mar. 24, 2026
Filed:
Aug. 02, 2023
Vmware Llc, Palo Alto, CA (US);
Pierluigi Rolando, San Marcos, CA (US);
Peng Li, Fremont, CA (US);
Boon S. Ang, Saratoga, CA (US);
Guolin Yang, San Jose, CA (US);
Wenyi Jiang, Fremont, CA (US);
Yuxiao Zhang, San Jose, CA (US);
Raju Koganty, San Jose, CA (US);
Subrahmanyam Manuguri, San Jose, CA (US);
Kok Pyng Liew, Cincinnati, OH (US);
Jin Heo, Los Altos, CA (US);
Srinath Suriyanarayanan Thillaisthanam, Fremont, CA (US);
VMware LLC, Palo Alto, CA (US);
Abstract
Some embodiments provide a novel method for migrating virtual machines (VMs) from a first host computer to a second host computer. The first host computer is connected to a physical network interface card (PNIC) that performs middlebox service operations for flows associated with the VMs. At the PNIC, the method receives a notification that a VM is to be migrated from the first to the second host computer. The method configures an embedded hardware switch of the PNIC to forward a set of flows associated with the VM to a firewall of the PNIC. The embedded hardware switch was initially programmed to process the set of flows instead of the firewall. The method synchronizes flow cache information regarding the set of flows from the embedded hardware switch to the firewall. The method processes the set of flows at the firewall until the VM is migrated to the second host computer.