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A distributed realization method for L2 multicast function

A layer-2 multicast and implementation method technology, applied in the branch office to provide special service devices, digital transmission systems, data exchange networks, etc., can solve the problems of increased processing load, decreased reliability, packet loss, etc., to improve efficiency, The effect of speeding up protocol processing

Inactive Publication Date: 2010-05-19
ZTE CORP
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Problems solved by technology

[0009] (1) The centralized control method aggravates the protocol processing capability of the core board, which has relatively high performance requirements for the core board system, and it is easy to lose packets due to the constraints of the core board processing capacity;
[0010] (2) The resources of the user board are not fully utilized, and the potential of the user board is brought into play
[0011] Especially as the capacity increases and the processing load increases, the reliability of the centralized method decreases

Method used

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  • A distributed realization method for L2 multicast function
  • A distributed realization method for L2 multicast function
  • A distributed realization method for L2 multicast function

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Embodiment Construction

[0045] The basic design idea of ​​the present invention is as follows: the multicast protocol is still running on the core board, but the multicast protocol is also running on the user board at the same time, which can be regarded as a two-level exchange between the core board and the user board. The difference is that the core board is responsible for the overall management, while the user board is only responsible for the local management of each user board. All configurations pass through the core board, and then are transmitted from the core board to each user board. That is to say, the core board provides a management-oriented interface, but the user board does not provide such an interface, and the configuration on the user board needs to be obtained from the core board.

[0046] The distributed DSLAM two-layer multicast function realization method described in the present invention comprises the following aspects:

[0047] A. Both the core board and the user board have...

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Abstract

Being related to technique of broadband access, the invention implements balanced loads for core board and user board properly so as to raise ability for processing protocol for entire DSLAM. The invention includes steps (1) based on configuration command, core board preprocesses and distributes data as well as decides mode for processing data; (2) if the data are global data, then core board processes data; (3) if the data are data for user board, then user board processes data the data. Improving ability for treating protocol, the invention quickens processing protocol, takes full advantageof handling ability of entire DSLAM system so as to raise efficiency of DSLAM multicast, and adapts requirements on continual increscent capacity and continual elevated demand on reliability.

Description

technical field [0001] The present invention relates to broadband access technology, in particular to a method for realizing distributed multicast function on access equipment. Background technique [0002] In DSLAM (Digital Subscriber Line Access Multiplexer) equipment, there are generally three types of boards: uplink boards, core boards, and subscriber boards. The multicast Layer 2 protocol (Internet Group Management Protocol, IGMP: Internet Group Management Protocol) on the current DSLAM is generally implemented in a centralized manner, that is, all protocol processing is completed on the core board, and the core board becomes the core board for system protocol processing. The center, uplink board and user board do not perform any protocol processing. [0003] This centralized processing method of the multicast protocol has many advantages, for example: [0004] (1) Centralized control mode brings simplicity and convenience to management; [0005] (2) All the multicas...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L12/28H04L29/06H04L12/56H04L12/18H04L12/803
Inventor 金雄兵施京
Owner ZTE CORP
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