Fast convergence for failures of large scale virtual ethernet segments in EVPN and PBB-EVPN
US10417095B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 27, 2017 |
| Grant date | Sep 17, 2019 |
| Priority date | — |
| Expiry date | Nov 25, 2037 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L45/28
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
Systems, methods, and computer-readable media for fast convergence for virtual ethernet segments in EVPN and PBB-EVPN networks are disclosed. A first provider edge (PE) device can receive one or more advertising messages corresponding to one or more virtual ethernet segments, wherein each of the one or more advertising messages can include a port identifier. The first PE device maintains a table including the one or more virtual ethernet segments and the corresponding port identifier. The first PE device can receive a failure message from a second PE device that identifies a first port on the second PE device, and identifies, based on the table, at least one affected virtual ethernet segment that is associated with the first port. The first PE device can remove any routes that are associated with the at least one affected virtual ethernet segment and trigger mass designated-forwarding election for impacted virtual ethernet segments.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.