Node protection for stacked labels
US9794148B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 31, 2014 |
| Grant date | Oct 17, 2017 |
| Priority date | — |
| Expiry date | Oct 3, 2035 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L45/507
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
Techniques are described for providing node protection in a Source Packet Routing in Networking (SPRING) network. In some examples, a first network device, responsive to detecting a configuration request to provide node protection to a second network device that is adjacent to the first network device: generate at least one context table; configure at least one forwarding entry that indicates: a primary path between the first network device and a third network device, and a backup path, based at least in part on the at least one context table, between the first network device and the third network device that bypasses the second network device; while the second network device has not failed, forward network packets to the third network device using the primary path; and responsive to determining that the second network device has failed, forward network packets to the third network device using the backup path.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.