Predictive Anycast traffic shaping
US11336579B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 5, 2020 |
| Grant date | May 17, 2022 |
| Priority date | — |
| Expiry date | Jul 12, 2040 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L2101/69
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
Gateway devices at different sites of a primary Anycast network provide access to the sites by advertising a first set of Anycast addresses. A secondary shadow Anycast network advertises different second sets of Anycast addresses from the different sites in order to predetermine traffic shifts that occur as a result of changing one or more of the second set of Anycast addresses that are advertised from one or more of the sites. A traffic shifting device may implement a predetermined traffic shift in the primary Anycast network by selecting a particular second set of network addresses that produces a traffic shift at least equal to the predetermined traffic shift, mapping the particular second set of network addresses to a modified first set of addresses, and modifying routing in the primary Anycast network by advertising the modified first set of addresses instead of the first set of addresses.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.