Method and device for establishing multicast data channel in network virtualization system

Abstract

The present invention provides a method and equipment for establishing a multicast data channel in a network virtualization system, wherein the method includes: creating a virtual remote logical interface for an external connection interface of a remote node on a controller; The core node is the root of the multicast tree tunnel, and obtains the multicast protocol message sent by the device outside the network virtualization system; the controller obtains the multicast source address and the multicast group address from the multicast protocol message, and generates a group broadcast forwarding table; the controller searches the external connection interface of the core node from the multicast forwarding table, searches for the outbound interface of the multicast tree tunnel at the core node according to the multicast tree tunnel, and searches for the outgoing interface of the multicast tree tunnel at the core node according to the Does the multicast tree tunnel generate and send the P2MP of the core node on the outbound interface of the core node? PW forwarding table to enable core nodes according to P2MP? The PW forwarding table forwards multicast data packets. The above method solves the problem that the cluster router cannot realize the multicast service in the prior art.

Description

technical field [0001] Embodiments of the present invention relate to communication technologies, and in particular to a method and device for establishing a multicast data channel in a network virtualization system. Background technique [0002] The traditional network architecture has a two-layer or multi-layer hierarchical structure, and according to the function and deployment location of each layer, the network can be divided into different layers (including core layer, aggregation layer, edge access layer and peer layer), Dual-homing redundant connections are usually used between layers to improve reliability and aggregate user traffic layer by layer. Among them, the access layer is responsible for the network access of user terminals, and is used to provide rich user interface types, with widely distributed nodes and high interface density; Rich, strong aggregation capabilities, with comprehensive business processing capabilities; the core layer is responsible for hi...

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Problems solved by technology

[0006] In view of this, the present invention provides a method and device for establishing a multicast data channel in a network virtualization system, which is used to solve the problem that cluster routers cannot implement multicast services in the prior art

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