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AssigneeVMware, Inc.
InventorsPierluigi Rolando, Peng Li, Boon S. Ang, Guolin Yang, Wenyi Jiang, Yuxiao Zhang, Raju Koganty, Subrahmanyam Manuguri, Kok Pyng Liew, Jin Heo, Srinath Suriyanarayanan Thillaisthanam
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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.
A method for migrating virtual machines (VMs) from a first host computer to a second host computer, the first host computer connected to a physical network interface card (PNIC) that performs middlebox service operations for data message flows associated with the VMs, the method comprising:
A non-transitory machine readable medium storing a program for execution by at least one processing unit for migrating virtual machines (VMs) from a first host computer to a second host computer, the first host computer connected to a physical network interface card (PNIC) that performs middlebox service operations for data message flows associated with the VMs, the program comprising sets of instructions for:
Dependencies are inferred from the claim text.