公开(公告)号：US11936721B2

公开(公告)日：2024-03-19

申请号：US17933581

申请日：2022-09-20

Applicant: VMware LLC

Inventor： Harish Manoharan ,  Subin Cyriac Mathew ,  Dileep Devireddy ,  Sreenivas Duvvuri

IPC: H04L67/1001 ,  H04L45/02 ,  H04L45/586 ,  H04L45/74

CPC classification number: H04L67/1001 ,  H04L45/02 ,  H04L45/586 ,  H04L45/74

Abstract: The disclosure provides an approach for seamless hand-off of data traffic in public cloud environments. Techniques are provided for activating an edge services gateway (ESG) virtual computing instance (VCI) on a new host. Prior to activating the ESG VCI on the new host, an underlay routing table is reprogrammed to associate a first IP address of a first tunnel endpoint (TEP) with a first network interface of an old host and to associate a second IP address of a second TEP with a second network interface of the new host. The routing table associates a third IP address of the ESG VCI with the first network interface. After activating the ESG VCI, a packet having as a destination address the third IP address is received at the first network interface and is encapsulated, by the first TEP, with an outer header having as a destination address the second IP address.