Seamless hand-off of data traffic in public cloud environments
US11477270B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 6, 2021 |
| Grant date | Oct 18, 2022 |
| Priority date | — |
| Expiry date | Jul 6, 2041 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L67/10015
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.