Switch pruning in a switch fabric bus chassis
US11704269B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 27, 2021 |
| Grant date | Jul 18, 2023 |
| Priority date | — |
| Expiry date | Apr 27, 2041 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F2213/0026
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Bus enumeration of a switch fabric bus may be performed without assigning bus numbers to unused switch ports and/or corresponding slots to which the unused switch ports are routed. Accordingly, switches coupled to a switch fabric bus in a chassis may link-train with corresponding slots in the chassis in an attempt to establish active connections with devices coupled to the slots. Unused switch fabric bus lanes running from the switches to unused slots may be identified, and the unused switch ports corresponding to the unused switch fabric bus lanes may be disabled. During a subsequent bus enumeration procedure for the switch fabric bus, bus numbers may be allocated to the identified used switch ports (or corresponding used slots) but not to the identified unused switch ports (or corresponding unused slots). The link training, used/unused switch port identification, and bus enumeration may all be performed each time the chassis is reset.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.