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A time-triggered network reconfiguration method based on virtual channels

A time-triggered and network reconfiguration technology, applied in data exchange networks, digital transmission systems, electrical components, etc., can solve problems such as the inability to realize time-triggered network reconfiguration, improve network reliability, shorten reconfiguration time, and solve The effect of reframing the problem

Active Publication Date: 2021-03-05
LUOYANG INST OF ELECTRO OPTICAL EQUIP OF AVIC
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Problems solved by technology

Since the time-triggered network adopts the time-triggered mechanism and virtual link channel, its network characteristics are different from other networks, so the general network reconfiguration method cannot realize the reconfiguration of the time-triggered network

Method used

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  • A time-triggered network reconfiguration method based on virtual channels

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specific Embodiment approach

[0017] 1. Use a dedicated time-triggered network planning tool to plan the communication virtual links between ES1, ES2, and ES3 to form figure 1 The virtual communication links shown in VL1_2 and VL1_3 in VL1_2, and generate the network configuration files of the network end systems ES1, ES2, ES3 and network switches. Meanwhile, ES4 stores the network configuration files of ES1.

[0018] 2. After the network system is powered on and running, the end systems ES1, ES2 and ES3 perform communication transmission according to the virtual communication links shown in VL1_2 and VL1_3.

[0019] 3. When the end system ES1 fails, the data communication between ES2, ES3 and ES1 is interrupted. After the switch recognizes the failure of ES1, it switches the mapping relationship between the virtual communication links VL1_2, VL1_3 and the physical link port P1 of the switch to the P4 port, forming New virtual communication links VL4_2, VL4_3.

[0020] 4. The switch notifies the backup e...

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Abstract

The present invention provides a time-triggered network reconfiguration method based on virtual channels. When a certain end system fails, the switch identifies the fault through a fault detection mechanism, and connects all virtual link channels related to the faulty end system with the physical channel of the switch. The mapping relationship is switched to the physical channel connected to the redundant backup end system, the switch notifies the backup end system to take over the function of the faulty end system, and the backup end system loads the pre-stored configuration file of the faulty end system. In the present invention, when a certain network end system fails, other network end systems can realize the change of the mapping relationship between the network virtual link channel and the physical channel without overloading the network communication configuration file and without interrupting the normal communication link, thereby Solve the problem of time-triggered network reconfiguration, shorten the reconfiguration time, and improve network reliability.

Description

technical field [0001] The invention relates to the field of network reconfiguration design, in particular to a communication network reconfiguration method. Background technique [0002] A time-triggered network is a data transmission network that uses a time-triggered mechanism and virtual link channels for network traffic and routing planning. All communication links are planned offline and configured during the network power-on initialization phase. Usually, in order to improve the reliability of the network, during the system design, redundant backup design is carried out for the key end systems in the network. The inheritance of the communication link relationship and the takeover of the communication function, and participation in network communication, at this time, the routing relationship of the network communication link will change, and the configuration of the network communication link needs to be dynamically adjusted. Because the time-triggered network adopts...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L12/703H04L12/707H04L12/935H04L12/939H04L45/28H04L45/24H04L49/111
CPCH04L45/22H04L45/28H04L49/30H04L49/557
Inventor 魏刚
Owner LUOYANG INST OF ELECTRO OPTICAL EQUIP OF AVIC
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