Multicast routing method based on network topology

A network topology and routing technology, applied in data exchange networks, digital transmission systems, electrical components, etc., can solve problems such as security problems, and achieve the effect of improving security factors and routing security problems.

Inactive Publication Date: 2014-02-26
SHANGHAI DIANJI UNIV
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  • Claims
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  • Multicast routing method based on network topology
  • Multicast routing method based on network topology
  • Multicast routing method based on network topology

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Embodiment Construction

[0028] The embodiments of the present invention will be described below through specific examples and in conjunction with the accompanying drawings, and those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification. The present invention can also be implemented or applied through other different specific examples, and various details in this specification can also be modified and changed based on different viewpoints and applications without departing from the spirit of the present invention.

[0029] figure 1 It is a flow chart of steps of a network topology-based multicast routing method of the present invention, such as figure 1 As shown, a multicast routing method based on network topology of the present invention includes the following steps:

[0030] Step 101, when the multicast source node has a data packet to send, it floods a member registration data packet with payload data, thi...

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Abstract

The invention discloses a multicast routing method based on network topology. The multicast routing method based on the network topology includes the steps that when a multicast source node needs to send a data package, flooding is carried out on a member registration data package JOIN QUERY with effective load data, and the JOIN QUERY data package is broadcasted periodically to the whole network to refresh member relation information and update a route, so that the route from a source node to a receiving node can be formed and a network topology structure of nodes named as forwarding groups is established; after the route structure is established and formed in a grouping mode, the source node signs for the data package, and the signed data package is broadcasted to a receiver through the designated route and the forward groups; when the broadcasted data package is received, the nodes determine that the broadcasted data package is not repeated and is forwarded to a destination node after FG_FLAG setting; the destination node receives the data package and verifies the data package. The multicast routing method effectively solves the routing security problem in the transmitting process of the ad-hoc network data package.

Description

technical field [0001] The invention relates to a routing control protocol of a wireless ad hoc network, in particular to a multicast routing method based on network topology. Background technique [0002] In Ad Hoc network design, it is particularly important to develop a routing protocol that provides high-quality and efficient communication between nodes. Due to the frequent movement of network nodes, the network topology is constantly changing, and traditional Internet-based routing protocols can no longer meet these characteristics. Therefore, it is necessary to specially design routing protocols applied to Ad Hoc networks, and analyze the structure and characteristics of Ad Hoc networks. , the designed routing protocol must meet the following conditions: 1. It can make timely and accurate responses to the rapid and frequent changes in the network topology, provide a convenient and simple network node location method, and try to avoid the occurrence of routing loops. 2...

Claims

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Application Information

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IPC IPC(8): H04L12/751H04L12/761H04L12/741H04L45/02H04L45/16H04L45/74
Inventor 熊鹏
Owner SHANGHAI DIANJI UNIV
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