Method and apparatus for establishing multicast data channel in network virtual system

Abstract

The present invention provides a method and apparatus for establishing a multicast data channel in a network virtual system. The method includes that a virtue far-end logic interface is established on the controller for an external connection interface of a far-end node; the controller generates a multicast tree tunnel taking a core node as the root and acquires a multicast protocol message transmitted by equipment other than the network virtual system; the controller acquires a multicast source address and a multicast group address from the multicast protocol message to generate a multicast forwarding table; the controller searches an external connection interface of the core node from the multicast forwarding table and then searches an exit interface of the multicast tree tunnel at the core node according to the multicast tree tunnel; and according to the multicast forwarding table, the external connection interface of the core node, and the exis interface of the multicast tree tunnel at the core node, the controller generates a P2MP PW forwarding table of the core node for transmitting the core node so as to enable the core node to forward a multicast data message according to the P2MP PW forwarding table. The aforementioned method solves the problem that in the prior art, a cluster router cannot realize multicast services.

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...

AI Technical Summary

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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