公开(公告)号：US20240385863A1

公开(公告)日：2024-11-21

申请号：US18198247

申请日：2023-05-16

Applicant: VMware LLC

Inventor： Chidambareswaran Raman ,  Subin Cyriac Mathew ,  Li Sun

IPC: G06F9/455 ,  G06F3/0482 ,  H04L41/0853 ,  H04L41/0895 ,  H04L41/22 ,  H04L41/342 ,  H04L45/586

Abstract: Some embodiments provide a novel method for migrating a virtual machine (VM) from a first host computer to a second host computer in a software-defined network (SDN) when a set of controllers of the SDN, that configures several forwarding elements in the SDN to implement one LFE, is unavailable. The second host receives information regarding the VM from the first host. The VM is associated with the LFE. The second host retrieves, from a local data store of the second host, configuration information for configuring at least one software forwarding element executing on the second host to implement the LFE. The configuration information was previously received from the controller set when it was available to pre-configure the second host to implement the LFE without assistance from the controller set when the VM migrates to the second host. The second host uses the received information for the VM and the retrieved configuration information for the LFE to instantiate the VM on the second host without requesting any information from the controller set.

公开(公告)号：US20240385862A1

公开(公告)日：2024-11-21

申请号：US18198245

申请日：2023-05-16

Applicant: VMware LLC

Inventor： Chidambareswaran Raman ,  Subin Cyriac Mathew ,  Li Sun

IPC: G06F9/455 ,  G06F9/54 ,  H04L41/0895

Abstract: Some embodiments provide a novel method for efficiently providing logical forwarding element (LFE) information needed for virtual machine (VM) migration to hosts in a software-defined network (SDN). A set of one or more controllers that configures several forwarding elements in the SDN to implement one LFE identifies a subset of one or more host computers in the SDN as a group of designated host computers for migrating one or more VMs. The controller set retrieves, from a data store, configuration information for configuring any software forwarding element executing on any designated host computer to implement the LFE. The controller set provides the retrieved configuration information to each host computer in the subset of host computers before any VM is migrated to the host computer, in order to pre-configure the host computer to implement the LFE without assistance from the controller set when a VM migrates to the host computer.