Method and device for label automatic allocation in ring network protection
US9391883B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Nov 21, 2013 |
| Grant date | Jul 12, 2016 |
| Priority date | — |
| Expiry date | May 18, 2034 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L45/28
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
Embodiments of the present invention provide a method and device for label automatic allocation in ring network protection. The method includes: after physical topology configuration of ring network protection is completed, if connectivity detection between a first node and a downstream node of a ring tunnel is UP, receiving, a first label distribution message sent by the downstream node; sending, by the first node according to the identifier indicating that the tail node label is ready, a second label distribution message to the upstream node; so that the upstream node learns that label allocation for all nodes on the ring tunnel between the first node and a tail node is completed. The method solves problems in the prior art that a workload for configuration of a working ring is big and availability of an end-to-end service cannot be ensured.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.