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Multicast spreading method oriented to wide area network remote virtual environment

A technology of remote virtualization and expansion method, applied in the field of distributed systems and computer networks, to achieve the effect of reducing extra overhead, alleviating pressure, and avoiding single-point bottlenecks

Inactive Publication Date: 2011-08-10
BEIHANG UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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  • Multicast spreading method oriented to wide area network remote virtual environment
  • Multicast spreading method oriented to wide area network remote virtual environment
  • Multicast spreading method oriented to wide area network remote virtual environment

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Embodiment Construction

[0036] The present invention adopts the gateway-based remote virtual environment construction method and combines the point-to-point mode and the mixed communication mode of IP multicast to achieve the purpose of filtering on the wide area network by using the idea of ​​"multicast" and reducing the amount of data transmission on the network, which is beneficial to System maintenance and expansion, suitable for large-scale distributed systems.

[0037] 1. Build a gateway-based remote virtual environment

[0038] A gateway is added to each LAN in the virtual environment, and each LAN communicates with each other through the gateway. like figure 1 As shown, the simulation application nodes in the LAN will complete the data communication with the simulation application nodes on the WAN through the gateway of the LAN. From the perspective of the simulation application nodes, the gateway in the LAN replaces all the simulation application information in the WAN , the network condit...

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Abstract

The present invention provides a multicast expansion method oriented to wide area network remote virtual environment. The method comprise steps of (1) adding a gateway to each local area network; (2) dividing the whole virtual environment into grid cells and the gateway distributing a multicast address and a grid identification number to each grid cell; (3) updating areas and ordering areas of all simulation members being mapped to form unit grid sets; (4) the gateway being in charge of maintaining the order area set of the local area network and sending the information to other gateways of the wide area network having been connected; (5) after receiving state updating information of simulation members from a multicast set, the gateway matching according to the ordering area set of a gateway to determine whether sending the state updating information to the gateway; (6) after receiving the state updating information of simulation members from other gateways of the wide area network, the gateway forwarding the information to corresponding multicast set of the local area network. According to the present invention, the system can run effectively, only occupying a small quantity of network bandwidth, and can assure the efficiency of data filtration of the greatest degree, therefore, pressure caused by extended simulation scale to the network bandwidth and processing resources is relieved.

Description

technical field [0001] The invention belongs to the field of distributed system and computer network technology, and specifically relates to a multicast extension method facing the remote virtual environment of the wide area network, which extends the idea of ​​multicast from the local area network to the remote virtual environment of the wide area network. Background technique [0002] Based on network technology, distributed interactive simulation integrates geographically distributed homogeneous or heterogeneous simulators in an environment consistent with time and space, and realizes interoperability among them to complete specific tasks. Distributed interactive simulation is of great significance to solve the research, design and verification of complex and comprehensive systems. It provides the possibility of interoperability between geographically distributed simulation platforms, and makes the way of simulation activities more flexible. [0003] With the development ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L12/46H04L12/28
Inventor 赵沁平周忠于庆吴威
Owner BEIHANG UNIV
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