Method of domain supervision and protection in label switched network
US7768925B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 29, 2006 |
| Grant date | Aug 3, 2010 |
| Priority date | — |
| Expiry date | Oct 14, 2026 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L45/50
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
Embodiments of the present invention disclose a method of domain supervision in a label switched network, including: designating one or more OAM domains on an LSP in the label switched network, determining an ingress node and an egress node of each OAM domain, inserting in-domain OAM frames containing supervision information at the ingress node of each OAM domain, receiving and parsing the in-domain OAM frames by the egress node of each OAM domain, and managing an OAM domain according to the supervision information contained in an in-domain OAM frame of the OAM domain. Furthermore, embodiments of the present invention also disclose a method of domain protection in a label switched network through adding a detection frame, such as Connectivity Verification (CV) frame, Fast Failure Detection (FFD) frame or the like, into an in-domain OAM frame.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.