公开(公告)号：US11362883B1

公开(公告)日：2022-06-14

申请号：US17200259

申请日：2021-03-12

Applicant: Cisco Technology, Inc.

Inventor： Dinesh Ranjit ,  Ramanathan Lakshmikanthan ,  Vijay Padmanabhan

IPC: G06F15/173 ,  H04L41/06 ,  G06F9/455 ,  H04L49/00

Abstract: Presented herein are methodologies for tracking a link state of a physical network connection and selectively reporting the link state to virtual machines that rely on the physical network connection. A method includes receiving an indication, at a hypervisor, which is running on a host computer and which instantiates a virtual switch, that a physical link interconnecting the host computer to a network has failed; determining that the physical link serves the virtual switch; determining whether link state tracking is enabled for the physical link; and when link state tracking is enabled for the physical link, notifying a virtual machine, which is running on the host computer and which is being served by the virtual switch, that a connection between the virtual machine and the network has failed.

公开(公告)号：US10992515B1

公开(公告)日：2021-04-27

申请号：US16435895

申请日：2019-06-10

Applicant: Cisco Technology, Inc.

Inventor： Dinesh Ranjit ,  Ramanathan Lakshmikanthan ,  Vijay Padmanabhan

IPC: G06F15/16 ,  H04L12/24 ,  G06F9/455 ,  H04L12/931

Abstract: Presented herein are methodologies for tracking a link state of a physical network connection and selectively reporting the link state to virtual machines that rely on the physical network connection. A method includes receiving an indication, at a hypervisor, which is running on a host computer and which instantiates a virtual switch, that a physical link interconnecting the host computer to a network has failed; determining that the physical link serves the virtual switch; determining whether link state tracking is enabled for the physical link; and when link state tracking is enabled for the physical link, notifying a virtual machine, which is running on the host computer and which is being served by the virtual switch, that a connection between the virtual machine and the network has failed.