Routing in fat tree networks using negative disaggregation advertisements
US10608921B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 15, 2018 |
| Grant date | Mar 31, 2020 |
| Priority date | — |
| Expiry date | Oct 15, 2038 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L45/488
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A particular fat tree network node stores default routing information indicating that the particular fat tree network node can reach a plurality of parent fat tree network nodes of the particular fat tree network node. The particular fat tree network node obtains, from a first parent fat tree network node of the plurality of parent fat tree network nodes, a negative disaggregation advertisement indicating that the first parent fat tree network node cannot reach a specific destination. The particular fat tree network node determines whether the first parent fat tree network node is the only parent fat tree network node of the plurality of parent fat tree network nodes that cannot reach the specific destination. If so, the particular fat tree network node installs supplemental routing information indicating that every parent fat tree network node except the first parent fat tree network node can reach the specific destination.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.