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A method, device and system for determining df of a multicast stream

A technology of multicast streaming and equipment, applied in the field of communication, can solve the problems of load sharing performance degradation, insufficient utilization of Ethernet link bandwidth, etc.

Active Publication Date: 2021-08-20
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the hash-based DF election mechanism may cause overloading of some of the multiple Ethernet links and insufficient bandwidth utilization of some of the multiple Ethernet links, As a result, the performance of load sharing is degraded

Method used

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  • A method, device and system for determining df of a multicast stream
  • A method, device and system for determining df of a multicast stream
  • A method, device and system for determining df of a multicast stream

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Embodiment Construction

[0038] In the following, specific examples will be used to describe in detail respectively.

[0039] For the EVPN technology involved in this application, please refer to the description of Internet Engineering Task Force (English: Internet Engineering Task Force, abbreviation: IETF) Request For Comments (English: Request For Comments, abbreviation: RFC) 7432. The content of the RFC7432 seems to be copied as a whole. Incorporated by reference into this application.

[0040] figure 1 It is a schematic diagram of an EVPN structure according to an embodiment of this application. Such as figure 1 As shown, the EVPN includes an access side and a network side. The access side is used to receive the multicast stream from the network side, and the access side communicates with the network side through an IP network. Wherein, the IP network may be a metropolitan area network (metropolitan area network, MAN) or a data center (data center, DC) network or a mobile bearer network (mobi...

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Abstract

A method, device and system for determining DF of a multicast stream. In an EVPN scenario, a CE device is dual-homed or multi-homed to multiple PE devices. The first PE device is any one of the multiple PE devices. After the first PE device determines that the CE device connected to the Ethernet link joins the multicast group of the multicast stream, it determines the bandwidth occupancy of multiple Ethernet links included in the ES to which the Ethernet link belongs, Then, according to the bandwidth occupancy of the multicast flow of the multiple Ethernet links, the PE device corresponding to the Ethernet link with the least bandwidth occupancy of the multicast flow is determined as the DF of the multicast flow. Therefore, it is helpful to improve the balance of load sharing for transmitting multicast streams in the EVPN.

Description

technical field [0001] The present application relates to the technical field of communications, and in particular to a method, device and system for determining a DF of a multicast stream. Background technique [0002] Multicast (multicast) is a method of sending data to multiple recipients on a Transmission Control Protocol (Transmission Control Protocol, TCP) / Internet Protocol (Internet Protocol, IP) network at the same time in an efficient manner by using a multicast address. The data transmission method of the user. The multicast source sends the multicast flow to the multicast group members in the multicast group through the link in the network, and all the multicast group members in the multicast group can receive the multicast flow. The multicast transmission mode realizes the point-to-multipoint data connection between the multicast source and the multicast group members. Because the multicast stream only needs to be transmitted once on each network link, and the ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L12/803H04L12/761H04L12/721H04L12/46H04L45/16H04L45/50
CPCH04L47/125H04L45/16H04L45/38H04L12/4641H04L45/50H04L2012/4629H04L45/7453H04L47/806H04L47/822H04L47/2483H04L47/33H04L47/762H04L47/781
Inventor 刘毅松
Owner HUAWEI TECH CO LTD
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