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Node device,and method for transmitting frame

A node and adjacent node technology, applied in the field of node devices with selectable paths

Inactive Publication Date: 2014-12-31
FUJITSU LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

That is, because the network environment can change dynamically, even if the node device sends data in the data transmission phase based on the network topology identified in advance in the path generation phase, the transmission may not be successful

Method used

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  • Node device,and method for transmitting frame
  • Node device,and method for transmitting frame
  • Node device,and method for transmitting frame

Examples

Experimental program
Comparison scheme
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Embodiment Construction

[0070] Hereinafter, several embodiments will be described in detail with reference to the drawings. Specifically, first refer to figure 1 with figure 2 For an example explaining the network configuration, refer to Figure 3-31 , and the first embodiment will be described. After that, refer to Figures 32 to 33 , the second embodiment will be described, and other embodiments will also be described. Finally, with Figures 34 to 36 The advantages common to each embodiment will be described by comparing the two comparative examples shown.

[0071] figure 1 It is a figure which shows the 1st example of a network structure. figure 1 The network 1 is an example of an ad hoc network to which the following embodiments can be applied, and includes a plurality of node devices. In addition, in the description below from the viewpoint of the network topology, a "node device" may be referred to simply as a "node".

[0072] Identification information unique within the network 1 ...

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PUM

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Abstract

A node apparatus stores identifying information of each of a transmission target frame, an adjacent node apparatus being the transmission destination, and a node apparatus recognized as the origin of the transmission target frame within the range of the number of hop equal to or smaller than 1. The node apparatus receives a frame, and when the stored identifying information of the transmission target frame and the information of the received frame are equal, updates transmission feasibility information stored in association with the final destination of the received frame. The transmission feasibility information indicates feasibility of transmission to each of a plurality of adjacent node apparatuses, and is updated so that feasibility of transmission to the transmission destination associated with the identifying information of the received frame indicates that "the transmission is infeasible". The node apparatus transmits the received frame, when there is no adjacent apparatus to which transmission is feasible, and when the stored identifying information of the transmission target frame is equal to the identifying information of the received frame, to the adjacent node apparatus recognized as the origin in association with the identifying information of the received frame.

Description

technical field [0001] The present invention relates to node arrangements for selectable routing in a network comprising a plurality of nodes. Background technique [0002] A great deal of research has been done so far on network devices. The most widespread is a network device utilizing an IP (Internet Protocol) network. Also, MPLS (Multi Protocol Labeled Switching) for the purpose of accommodating multiple protocols and networks is a technology related to network devices having a mechanism for automatically generating paths. In addition, there are AODV (Ad-hoc On-Demand Vector, Ad-hoc On-Demand Vector) and OLSR (Optimized LinkState Routing, optimal link state routing) as representative examples of ad hoc network algorithms. [0003] In IP network devices, packets are routed according to IP addresses. IP addresses have a tree structure. Therefore, the packet can be transferred to the final destination terminal in the following order. That is, starting from the upper o...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L12/70H04L12/28H04W40/24H04L45/02H04L45/74
CPCH04L45/36H04L45/54H04W40/02H04L45/02H04L12/28H04W40/24
Inventor 岩尾忠重高桥勇治古贺俊介野口雄理
Owner FUJITSU LTD