Ethernet virtual private network fast reroute triggered designated forwarder election
US12309056B2 · kind B2 · utility
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3References
20Claims
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Key dates
| Filing date | Apr 22, 2022 |
| Grant date | May 20, 2025 |
| Priority date | — |
| Expiry date | Jun 5, 2043 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L45/50
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A mechanism that allows CE-to-PE traffic to achieve minimal traffic loss at the same rate as PE-to-CE redirection (FRR). The solution relies on a fast-unblocking of the Backup-DF interface based on appearance of redirected packets from the active DF-Elected peer. A slow-path confirmation mechanism is included to further mitigate false-positives, as well as maintaining data plane and control plane in sync.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.