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Flow control method and device, switch, sending end server and medium

A sending-end server, flow control technology, applied in the field of communication, can solve the problems of occupying switch cache, reducing ROCE transmission rate, affecting ROCE performance, etc.

Active Publication Date: 2019-07-26
BEIJING KINGSOFT CLOUD NETWORK TECH CO LTD +2
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Problems solved by technology

[0004] However, for the ROCE network, when the PFC protocol is used to ensure that the data is not lost (lossless), it will take a lot of time to send a Pause frame to notify the upstream network element to slow down, and a large number of messages need to be buffered, occupying a large amount of cache in the switch, making the The transmission rate of ROCE is reduced, which affects ROCE performance

Method used

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  • Flow control method and device, switch, sending end server and medium
  • Flow control method and device, switch, sending end server and medium
  • Flow control method and device, switch, sending end server and medium

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Embodiment Construction

[0067] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0068] In order to increase the data transmission rate of ROCE and optimize the performance of ROCE, the embodiment of the present invention provides a flow control method. In this method, the sending server first divides the flow to be sent into the flow that can be dropped and the flow that cannot be lost, and distinguish the marks After the switch receives the packet sent by the sender server, it transmits the marked packets that can be discarded and the pac...

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Abstract

The embodiment of the invention provides a flow control method and device, a switch, a sending end server and a medium. The flow control method is applied to a switch and comprises: receiving a message sent by a sending end server, the message comprising a packet-lossable message and a non-packet-lossable message, and the packet-lossable message and the non-packet-lossable message being distinguished and marked by the sending end server; respectively transmitting the marked packet-lossable message and non-packet-lossable message on virtual channels with different priorities created by a priority-based flow control PFC function; performing packet loss control on the message of the virtual channel with the priority when the message corresponding to the virtual channel with the priority is marked with a packet loss message identifier, and performing packet loss prevention control on the message of the virtual channel with the priority when the message corresponding to the virtual channelwith the priority is marked with a packet loss prevention message identifier.

Description

technical field [0001] The invention relates to the field of communication technology, in particular to a flow control method, device, switch, sender server and medium. Background technique [0002] With the rise of big data and artificial intelligence, applications have higher and higher requirements for network throughput and delay, and the traditional Transmission Control Protocol / Internet Protocol (TCP / IP) network has been unable to meet the requirements . Remote direct memory access (Remote Direct Memory Access, RDMA) is a technology for direct remote memory access, which allows a computer to directly read the memory of a remote computer through the network without the need for a central processing unit (CPU). ) greatly reduces the CPU load, and its transmission rate is dozens or even hundreds of times higher than that of TCP / IP networks. RDMA has the advantages of low latency and high throughput. Remote direct memory access over Ethernet (RDMAOver Converged Ethernet,...

Claims

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Application Information

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IPC IPC(8): H04L12/801H04L12/823H04L12/833H04L47/31H04L47/32
CPCH04L47/10H04L47/31H04L47/32
Inventor 张宇
Owner BEIJING KINGSOFT CLOUD NETWORK TECH CO LTD
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