Multicast traffic transmission method and device

A traffic and multicast technology, applied in the field of communication, can solve the problems of occupying memory resources, a large number of BGP routes, affecting the processing performance of equipment, etc., to avoid memory resources, avoid occupying a large amount, and improve the processing performance of equipment.

Active Publication Date: 2018-01-05
NEW H3C TECH CO LTD
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Problems solved by technology

[0006] During the process of switching multicast traffic from a compatible tunnel to a selective tunnel, each multicast traffic will generate multiple BGP routes. For example, when the specification of multicast traffic reaches 256K, the 256K multicast traffic will generate The number of BGP routes is large, which takes up a lot of memory resources and affects the processing performance of the device

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  • Multicast traffic transmission method and device

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Embodiment Construction

[0024] The terms used in the embodiments of the present application are only for the purpose of describing specific embodiments, rather than limiting the present application. As used in this application and the claims, the singular forms "a", "the" and "the" are intended to include the plural forms as well, unless the context clearly dictates otherwise. It should also be understood that the term "and / or" as used herein is meant to include any and all possible combinations of one or more of the associated listed items.

[0025] It should be understood that although the embodiments of the present application may use terms such as first, second, and third to describe various information, such information should not be limited to these terms. These terms are only used to distinguish information of the same type from one another. For example, without departing from the scope of the present application, first information may also be called second information, and similarly, second ...

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Abstract

The invention provides a multicast traffic transmission method and device. The method comprises the steps of after multicast traffic sent by a multicast source is received, if a corresponding relationbetween the multicast traffic and an inclusive provider multicast service interface tunnel or a selective PMSI tunnel does not exist, sending a first selective PMSI tunnel auto-discovery route to a second provider edge router (PE); and if a first leaf node auto-discovery route returned by a third PE is received, building a corresponding relation between the multicast traffic and the inclusive PMSI tunnel, and sending the multicast traffic through the inclusive PMSI tunnel. Through adoption of the multicast traffic transmission method and device, boarder gateway protocol (BGP) routes generatedby each piece of multicast traffic are reduced, and the BGP route is prevented from using a lot of memory resources.

Description

technical field [0001] The present application relates to the technical field of communications, and in particular to a multicast traffic transmission method and device. Background technique [0002] In a multicast VPN (Virtual Private Network, virtual private network), the multicast control information can be carried through the BGP (BorderGateway Protocol, Border Gateway Protocol) route, and each PE (Provider EdgeRouter, service provider edge router) carries the information according to the BGP route multicast control information, build a multicast tunnel (such as P2MP (Point-to-Multipoint, point-to-multipoint) multicast tunnel), each PE can send multicast traffic through the multicast tunnel, so that the multicast traffic reaches the VPN user side. [0003] Multicast tunnels can include inclusive tunnels (Inclusive PMSI (Provider Multicast Service Interface, operator multicast service interface) tunnels, inclusive multicast service tunnels, referred to herein as inclusiv...

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Application Information

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IPC IPC(8): H04L12/713H04L12/741H04L12/751H04L12/911H04L12/927H04L45/586H04L45/02H04L45/74H04L47/80
Inventor 杨洁
Owner NEW H3C TECH CO LTD
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