Throughput in a crossbar network element by modifying mappings between time slots and ports
US10938715B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 11, 2019 |
| Grant date | Mar 2, 2021 |
| Priority date | — |
| Expiry date | Sep 23, 2039 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L49/9005
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A network element includes output ports, a crossbar fabric and a scheduler. The output ports are organized in groups of multiple output ports selectable over predefined time slots in accordance with a cyclic mapping assigned to each group. In each time slot, the crossbar fabric routes to fabric outputs data received from the buffers via fabric inputs, in accordance with a routing plan. The scheduler determines and applies the routing plan for transmitting packets from the buffers to the communication network via the crossbar fabric and output ports. When in a given time slot, a required readout rate from a given buffer exceeds a maximum rate, the scheduler selects a group of the output ports to which the given buffer is routed in that time slot, and modifies the cyclic mapping for that group to reduce the required readout rate from the given buffer in the given time slot.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.