Service chaining based on labels in control and forwarding
US10142254B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 16, 2013 |
| Grant date | Nov 27, 2018 |
| Priority date | — |
| Expiry date | Feb 21, 2035 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L47/70
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A method for routing is disclosed. The method comprises establishing an overlay network, comprising a plurality of network elements and an overlay controller; wherein the overlay controller is in communication with each network element via a secure tunnel established through an underlying transport network; receiving by the overlay controller, information from each service-hosting network element information said information identifying a service hosted at that service-hosting network element, and label associated with the service-hosting network element; identifying by the overlay controller, at least one policy that associates traffic from a site with a service; and causing by said overly controller, the at least one policy to be executed so that traffic from the site identified in the policy is routed using the underlying transport network to the service-hosting network element associated with the said service.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.