Specifying routes to enable Layer-2 mobility in hybrid-cloud environments
US12267240B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 6, 2024 |
| Grant date | Apr 1, 2025 |
| Priority date | — |
| Expiry date | May 6, 2044 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L61/5007
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
Techniques for using more-specific routing to perform scalable Layer-2 (L2) stretching of subnets across hybrid-cloud environments. Routing tables in a public cloud may allow for routes that are more specific than the default local route, and the more-specific routes may be used to send all traffic to a dedicated, cloud router. The more-specific routes are set up for a VPC where a subnet resides such that the more specific-routes cover at least a portion of subnet range. The next hop for the more-specific routes point to the cloud router which is capable of doing host routing and segmentation extension. Thus, traffic originating from endpoints in a VPC is routed to the cloud router, and the cloud router determines whether the traffic is to be re-routed back to a destination endpoint in the VPC (or another cloud location), or sent to a destination endpoint residing in the on-premises site.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.