Implementing hierarchical high radix switch with timesliced crossbar
US9667564B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 28, 2013 |
| Grant date | May 30, 2017 |
| Priority date | — |
| Expiry date | Mar 8, 2034 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L49/3063
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A method and system are provided for implementing a hierarchical high radix switch with a time-sliced crossbar. The hierarchical high radix switch includes a plurality of inputs and a plurality of outputs. Each input belongs to one input group; each input group sends consolidated requests to each output, by ORing the requests from the local input ports in that input group. Each output port belongs to one output group; each output port grants one of the requesting input groups using a rotating priority defined by a next-to-serve pointer. Each output group consolidates the output port grants and allows one grant to pass back to an input group. Each input port in an input group evaluates all incoming grants in an oldest packet first manner to form an accept. Each input group consolidates the input port accepts and selects one accept to send to the output port.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.