Congestion control for low latency datacenter networks
US11509593B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 25, 2021 |
| Grant date | Nov 22, 2022 |
| Priority date | — |
| Expiry date | Feb 27, 2041 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W28/0883
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
Systems and methods for controlling congestion of a data network are provided. An engine round-trip time (RTT) and a fabric RTT for a network flow are determined. An engine-based congestion window size for the flow is determined based on the engine RTT and a target engine RTT. A fabric-based congestion window size for the flow is determined based on the fabric RTT and a target fabric RTT. The smaller of the engine-based congestion window size and the fabric-based window size is selected for use in transmitting a future packet associated with the flow. The target engine RTT is determined based in part on the current congestion window used to transmit packets for the flow and/or the target fabric RTT is determined based on a number of hops packets associated with the flow traverse from a source to a destination associated with the flow.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.