Dynamic control channel establishment for software-defined networks having centralized control
US9100285B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 27, 2015 |
| Grant date | Aug 4, 2015 |
| Priority date | — |
| Expiry date | Mar 27, 2035 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L45/68
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
Dynamic control channel establishment for an access network is described in which a centralized controller provides seamless end-to-end service from a core-facing edge of a network to access nodes. For example, a method includes receiving, by the centralized controller, a discover message originating from a network node, which includes an intermediate node list that specifies a plurality of network nodes the discover message traversed from the network node to an edge node, determining, based on the plurality of nodes specified by the discover message, a path from the edge node to the network node, allocating each of a plurality of Multi-protocol Label Switching (MPLS) labels to a respective outgoing interface of each of the plurality of network nodes, and outputting one or more control messages for configuring the network node, wherein the control messages are encapsulated within a label stack comprising the allocated plurality of labels.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.