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Method and device for improving network routing reliability

A reliability and routing technology, applied in the direction of data exchange network, digital transmission system, electrical components, etc., can solve the problem of low reliability of space network routing

Active Publication Date: 2019-03-19
CHINA UNITED NETWORK COMM GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Embodiments of the present invention provide a method and device for improving network routing reliability, which are used to solve the technical problem of low reliability of space network routing caused by node failure in the prior art

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  • Method and device for improving network routing reliability
  • Method and device for improving network routing reliability

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Embodiment Construction

[0029] Embodiments of the present invention will be described below in conjunction with the accompanying drawings.

[0030] refer to Figure 1-Figure 2 As shown, the embodiment of the present invention provides a method for improving network routing reliability, the method includes steps S101-S103:

[0031] S101. Obtain retransmission record information of checkpoints between the current node and adjacent nodes.

[0032] The link bit error rate and node failure in the space network will cause retransmission between nodes. The typical value of the link bit error rate is usually 10 -6 , under the normal link bit error rate, the probability of consecutive checkpoint retransmissions is extremely low. Therefore, in order to distinguish between these two situations, it is first necessary to obtain the retransmission record information of the checkpoint between the local node and the adjacent node. According to the The retransmission record information establishes a retransmission ...

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Abstract

The invention discloses a method and device for improving network routing reliability, and relates to the technical field of the spatial network routing. The method is used for improving the reliability of the spatial network routing, and comprises the following steps: acquiring retransmission record information of a check point between this node and an adjacent node, wherein the retransmission record information comprises a sending node and a receiving node in check point retransmission, and the number of retransmission of the check point between the sending node and the receiving node, the sending node is this node, and the receiving node is the adjacent node; if the number of retransmission of the check point between the sending node and the same receiving node is greater than or equalto a preset threshold value, regarding the same receiving node as a failure node and generating node failure notification information according to the retransmission record information; and adding thenode failure notification information in a local node failure record list, and sending the node failure notification information to other nodes except the failure node.

Description

technical field [0001] The invention relates to the technical field of space network routing, in particular to a method and device for improving the reliability of network routing. Background technique [0002] With the continuous development of aerospace missions and communication network technologies, establishing space networks and providing communication support for space missions has become a research hotspot in various countries. At present, a large number of researches focus on reducing the transmission delay by considering factors such as space node storage space and queue length to improve routing performance. There are few studies on the reliability of space network routing. In space network, space nodes are easily affected by energy depletion, antenna damage, and electromagnetic interference, which will lead to node failure. When a node fails, it will cause changes in the network link information, so that the contact information configured in the contact plan can...

Claims

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Application Information

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IPC IPC(8): H04L12/721H04L12/26H04L1/08
CPCH04L1/08H04L43/0805H04L45/14
Inventor 申志伟时文丰房秉毅
Owner CHINA UNITED NETWORK COMM GRP CO LTD