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Multicast transmission method and related device

A transmission method and equipment technology, applied in the field of communication transmission, capable of solving problems such as packet loss

Active Publication Date: 2019-03-22
XFUSION DIGITAL TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] This application provides a multicast transmission method and related devices, which can solve the problem of packet loss caused by link failures in the process of multicast message transmission

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  • Multicast transmission method and related device
  • Multicast transmission method and related device
  • Multicast transmission method and related device

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Embodiment Construction

[0056]The technical solutions in the embodiments of the present application will be described below with reference to the drawings in the embodiments of the present application.

[0057] The solution of the present application can be applied to a multicast service transmission network with multiple transmission links between the multicast traffic inlet and the multicast traffic outlet. In the multicast service transmission network, it can be divided into three types of equipment according to the position of the network equipment in the network: 1) Customer Edge (CE) equipment, CE equipment is the access equipment, used to communicate with the multicast service The edge devices in the transmission network are connected. In some possible implementations, the CE can be the user's switch, routing switch, IAD, metropolitan-area network (Metropolitan-area Network, MAN) device, wide area network (Wide Area Network, WAN) equipment, etc. CE devices have rich interfaces, can access var...

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Abstract

The present application provides a multicast transmission method and a related device. The method comprises the following steps that: a multicast message egress device receives a first multicast message from M transmission links, wherein the first multicast message is a BIER message, a first BIER header of the first multicast message carries a sequence number, the transmission links are the transmission links between the multicast message egress device and a multicast message ingress device, and M is a positive integer and greater than 1; the multicast message egress device determines the N first multicast messages with the same sequence number according to the sequence number, wherein N is the positive integer and less than or equal to M; the multicast message egress device reserves one first multicast message of the N first multicast messages with the same sequence number, as the first multicast message to be forwarded, and discards the remaining N-1 first multicast messages; and themulticast message egress device processes and forwards the first multicast message to be forwarded. By adopting the scheme provided by the present application, the packet loss problem caused by the link failure in the transmission process of the multicast message can be solved.

Description

technical field [0001] The present application relates to the field of communication transmission, in particular to a multicast transmission method and related equipment. Background technique [0002] In some network services, there are often a certain number of users receiving the same data. If unicast technology is used to provide services for these users, the sender needs to establish a data stream for each user and send the same data repeatedly. Increase the load on the communication network between the sender and the user. In this context, multicast technology has become a technology to solve this problem. For the same data, multicast technology only needs the sender to send a data stream, and then the communication equipment in the transmission network copies the data stream and transmits it to the user. , so as to reduce the network load. [0003] In the current transmission network, in order to avoid the interruption of the multicast traffic due to the failure of t...

Claims

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Application Information

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IPC IPC(8): H04L12/761H04L12/741H04L45/16H04L45/74
CPCH04L45/16H04L45/74
Inventor 谢经荣柳渤
Owner XFUSION DIGITAL TECH CO LTD