Hitless migration of interconnected data center networks for network virtualization overlay using gateways
US11909630B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 29, 2022 |
| Grant date | Feb 20, 2024 |
| Priority date | — |
| Expiry date | Aug 17, 2042 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L45/745
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
Hitless migration of network devices for communication between two data centers using a dual IP stack mode is provided herein. In a first data center, a first gateway receives first routing information from an edge device regarding a first set of routes associated with a first host device in the first data center. The first gateway device generates a second set of routes that include a first address of the edge device formatted according to a first communication protocol. The second set of routes is exported to a second gateway device in a second data center. The first gateway device receives an encapsulated data packet having a first overlay that includes the first address from the second gateway device. The first gateway device decapsulates and re-encapsulates the data packet and a re-encapsulated data packet is sent to the edge device, the re-encapsulated data packet having a second overlay that includes the second address. The first address is formatted according to a first communication protocol and the second address is formatted according to a second communication protocol.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.