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Multicast method and terminal equipment

A multicast and sub-multicast technology, applied in the field of communication, can solve problems such as unstable data transmission, achieve the effect of ensuring reliable transmission and improving transmission efficiency

Active Publication Date: 2019-04-05
CHINA MERCHANTS SECURITIES CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
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Problems solved by technology

[0005] In view of this, the embodiment of the present invention provides a multicast method and terminal equipment to solve the problem of unstable data transmission in the prior art

Method used

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  • Multicast method and terminal equipment

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Embodiment Construction

[0032] In the following description, specific details such as specific system structures and technologies are presented for illustration rather than limitation, so as to thoroughly understand the embodiments of the present invention. It will be apparent, however, to one skilled in the art that the invention may be practiced in other embodiments without these specific details. In other instances, detailed descriptions of well-known systems, devices, circuits, and methods are omitted so as not to obscure the description of the present invention with unnecessary detail.

[0033] In order to illustrate the technical solutions of the present invention, specific examples are used below to illustrate.

[0034] Such as figure 1 As shown, the logic flowchart of the multicast method provided by the embodiment of the present invention includes:

[0035] Step S100, receiving several data packets sent by the sender.

[0036] In one embodiment of the present invention, the method for jud...

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Abstract

The invention provides a multicast method and terminal equipment suitable for the technical field of communication. All receivers are partitioned via a consistency Hash algorithm, senders in the samearea belong to the same sub multicast group, when a data packet received by a receiver is lost, and a first data retransmission instruction is sent to other receivers in the same sub multicast group to request for data retransmission; and when data loss occurs in all receivers in the same sub multicast group, the receiver sends a second data retransmission instruction to the sender to request fordata retranmisssion. Thus, it is ensured that multicast data is transmission reliably, and the data transmission efficiency is improved.

Description

technical field [0001] The invention belongs to the technical field of communication, and in particular relates to a multicast method and terminal equipment. Background technique [0002] Multicast transmission: A point-to-multipoint network connection between the sender and each receiver. If a sender transmits the same data to multiple receivers at the same time, only one copy of the same data packet is required. It improves data transfer efficiency. Reduces the possibility of backbone network congestion. [0003] RDMA (Remote Direct Memory Access) was created to solve the delay of server-side data processing in network transmission. RDMA transfers data directly to the storage area of ​​the computer through the network, and quickly moves data from one system to the remote system memory without any impact on the operating system, so that it does not need to use much computer processing power. It eliminates the overhead of external memory copying and context switching, th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L12/18H04L1/16
CPCH04L1/1607H04L12/1863
Inventor 王伟标胡宇辉彭政生
Owner CHINA MERCHANTS SECURITIES CO LTD
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