Data center congestion management for non-TCP traffic
US10708187B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 22, 2014 |
| Grant date | Jul 7, 2020 |
| Priority date | — |
| Expiry date | Jun 30, 2036 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L47/822
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
Methods, apparatus and software for implementing enhanced data center congestion management for non-TCP traffic. Non-congested transit latencies are determined for transmission of packets or Ethernet frames along paths between source and destination end-end-nodes when congestion along the paths is not present or minimal. Transit latencies are similarly measured along the same source-destination paths during ongoing operations during which traffic congestion may vary. Based on whether a difference between the transit latency for a packet or frame and the non-congested transit latency for the path exceeds a threshold, the path is marked as congested or not congested. A rate at which the non-TCP packets are transmitted along the path is then managed as function of a rate at which the path is marked as congested. In one implementation, non-TCP traffic is managed by mimicking a Data Center TCP technique, under which the congestion marking status of the path is substituted as an input to a DCTP algorithm in place of the normally-used ECN-Echo flag input. The congestion window output by the DCTCP algorithm is then used to manage the rate at which non-TCP packets to be forwarded via the pa…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.