Realizing system of multicast routing based on mark and method thereof

Abstract

The invention relates to a realizing system of multicast routing based on a mark and a method thereof. The realizing system at least comprises a group user, an access switching router, an universal multicast service controller, a generalized switching router, and the like, to realize the member management, the counting management and the safe relative function of a multicast user. The invention comprises a management method of a group member, a multicast adding and separating method and a multicast tree building method, wherein the management method of the group member records the multicast user and multicast group information and provides a multicast counting function and a multicast security mechanism; the multicast adding and separating method relates to the group member relationship, counting, security, and the like, of the group user, and is used for controlling the update and the maintainace of a multicast tree; and the multicast tree building method intensively builds the tree with the universal multicast service controller, as to realize the transmission of the data in a core net.

Description

technical field [0001] The invention relates to a multicast routing system and method, in particular to an identification-based multicast routing implementation system and method, belonging to the technical field of communications. Background technique [0002] The current multicast technology mainly adopts the Host Groups model, which consists of two parts. One is the construction and maintenance between the multicast router and the host through group member management protocols such as IGMP (Internet Group Management Protocol) and MLD (Multicast Listener Discovery). Group membership, the second is through multicast routing protocols between multicast routers, such as Distance Vector Multicast Routing Protocol DVMRP (Distance Vector Multicast Routing Protocol), Protocol Independent Multicast-Dense Mode PIM-DM (Protocol Independent Multicast-Dense Mode) , Protocol Independent Multicast-Sparse Mode PIM-SM (Protocol Independent Multicast-SpareMode), etc. to build and maintain ...

AI Technical Summary

Problems solved by technology

However, the construction and update of the PIM protocol multicast tree is created in a distributed manner, and there are the following problems: First, each multicast router only knows part of the network topology information and part of the group member information, so it is impossible to establish a globally effective multicast tree; Second, due to the lack of global information, broadcasts are often used to send control information and data, which wastes a lot of bandwidth

However, the problem with the SCMP solution is that management and bearer are concentrated on the m-router, which increases the burden on the m-router

In addition, m-router needs to redesign a new hardware architecture, which increases the difficulty of its deployment

[0013]Currently these multicast routing protocols mainly operate in the existing Internet based on TCP / IP, but due to the inherent defects in the design of the Internet, it cannot Meet the growing demand for network services

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