2results about How to "Optimize transmission delay" patented technology

The invention discloses a cross-data center RDMA network congestion control method and device based on in-band telemetering, and belongs to the technical field of network transmission control. The method comprises the following steps: sending a first cross-data center flow to an upstream DCI switch at an initial rate; according to a Switch-INT message returned by an upstream DCI switch, a first fair rate is calculated, a second cross-data center flow is sent to the upstream DCI switch at the first fair rate, an ACK message of a downstream data center responding to the first cross-data center flow is obtained, and the ACK message comprises a suggested rate; and generating a final rate in combination with the first fair rate and the suggested rate, and sending a third cross-data center flow to an upstream DCI switch at the final rate. According to the method, the network sensing capability of the cross-data center flow can be improved, the fairness of the flow in the data center and the cross-data center flow is improved, and the transmission delay of the datagram is optimized.

The utility model provides an edge computing box circuit structure, which comprises a double-sided PCB (printed circuit board) substrate, a communication control area is arranged on a front partition, and a power storage area is arranged on a back partition; according to the front layout, an SIM card seat and a 4G communication module are arranged at the upper left corner; the distance between the central processor and the edge of the 4G communication module is 10 + / -2mm; four relays are arranged on the right side in parallel, and a drive circuit of each relay is directly connected with a GPIO pin of the processor; a digital input interface, an analog input interface, an RS485 interface and an output interface are integrated at the upper end of the controller; the power interface is adjacent to the DC-DC conversion chip; an LED indicating lamp, a debugging interface, a serial port, a USB interface and an Ethernet interface are integrated at the lower end; according to the utility model, calculation and processing can be carried out at the edge side of data generation, the cloud pressure is effectively reduced, the real-time performance and reliability of the system are improved, the interface expansion capability is improved, and the signal interference is reduced.