System, method and apparatus for signaling and responding to ERO expansion failure in inter-domain TE LSP
US9088485B2 · kind B2 · utility
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23Claims
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Key dates
| Filing date | Dec 20, 2012 |
| Grant date | Jul 21, 2015 |
| Priority date | — |
| Expiry date | May 29, 2033 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L47/724
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A system, method and apparatus for performing a constraint base shortest path computation (CSPF) in a manner excluding those nodes indicated as having failed an ERO expansion, the indication being provided via an error code within an RSVP path message associated with setup of an alternate LSP.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.