Anycast route detection
US9385925B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Dec 16, 2013 |
| Grant date | Jul 5, 2016 |
| Priority date | — |
| Expiry date | Oct 3, 2034 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L45/16
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
Systems and methods are described to detect routes utilized by client computing devices to access anycast points of presence. Multiple anycast points of presence may be associated with an anycast destination address. A client computing device may therefore connect to any of the multiple anycast points of presence, selected based on routing protocols. In some instances, client computing devices may connect to an undesirable point of presence. In order to detect an diagnose undesirable anycast connections, individual point of presence are configured to transmit anycast probes to client computing devices and/or nodes connecting the point of presence and a client computing device. Responses to each probe may be transmitted to the anycast destination address, which may be routed to an originating point of presence or to an alternative point of presence. Resulting data may be used to automatically generate warnings indicating undesirable anycast connections.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.