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Group transmitting address distributing method

A technology of multicast address and allocation method, which is applied in the direction of data exchange, electrical components, transmission system, etc. through path configuration, which can solve the problems of ineffective use of multicast address resources and achieve the effect of dynamic allocation

Inactive Publication Date: 2005-04-27
BEIHANG UNIV
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Problems solved by technology

[0008] To sum up, no matter which of the multicast address allocation methods mentioned above, the multicast address is pre-allocated, that is, the multicast address is allocated in advance, and the allocated address cannot be adjusted at any time as the traffic increases or decreases. multicast address, so that the multicast address resources cannot be effectively used

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  • Group transmitting address distributing method
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Embodiment Construction

[0055] The IP (Internet Proctocol, Internet Protocol) protocol uses class D addresses to support multicast, and each class D address represents a group of hosts, so the range of multicast addresses is from 224.0.0.0 to 239.255.255.255. Some multicast addresses are designated as permanent addresses, which are listed in the latest allocation list of RFC (Request For Comments, Request for Comments), for example: 224.0.0.1 represents all system groups in the subnet, 224.0.0.3 represents all system groups in the subnet router group, etc. Therefore, the resources of multicast addresses are limited.

[0056]Dimensions are coordinate axes on which attribute values ​​vary and are identified by names. Path space is a named sequence of dimensions, and the multidimensional coordinate system formed by this sequence is the data space of attribute values ​​in simulation. Multicast address allocation is to place a certain number of multicast address "points" in some small units of the path ...

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Abstract

The multicasting address allocating method includes the steps of: static multicasting address pre-allocating comprising dividing the path space into set mesh units and allocating multicasting addresses for the mesh units; further dividing the mesh units with excessive objects, or simulating entities, and allocating multicasting addresses for the newly formed mesh units; and deleting the mesh units with too less objects to recover allocated multicasting addresses. The multicasting address allocating method of the present invention can regulate the allocation of multicasting address at any moment for full utilization of the multicasting address resource.

Description

technical field [0001] The invention relates to the field of computer distributed virtual environments, in particular to a multicast address allocation method applied in the field. Background technique [0002] Multicast is a one-to-many communication mechanism. Sending information once can send the information to the same group of users who need the same data. Due to this feature of multicast, multicast technology has become the main means of communication that large-scale distributed virtual environments need to rely on, and multicast address allocation has become the key to establishing channels. Since the number of multicast addresses that routers can support is limited, the number of multicast addresses that can be added to hosts at the same time is also limited, but the number of multicast addresses required by a distributed virtual environment is huge, so the multicast address allocation method It becomes one of the important problems in the distributed virtual envir...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L12/28H04L29/12
Inventor 周忠吴威黄海
Owner BEIHANG UNIV
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