Path computation element hierarchical software defined network control
US10218600B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Dec 27, 2016 |
| Grant date | Feb 26, 2019 |
| Priority date | — |
| Expiry date | Mar 24, 2037 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L2012/445
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A parent PCE controller comprising a memory comprising instructions executable by a processor and a processor coupled to the memory and configured to execute the instructions. Executing the instructions causes the processor to establish a parent-child relationship with at least a first child PCE controller controlling a first domain and a second child PCE controller controlling a second domain, receive a request to create an E2E tunnel from a source to a destination crossing the first domain and the second domain, compute a shortest path from the source to the destination through the first domain and the second domain, transmit a request message to the first child PCE controller for creating a first tunnel segment of the E2E tunnel through the first domain, and transmit a request message to the second child PCE controller for creating a second tunnel segment of the E2E tunnel through the second domain.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.