SpaceWire dynamic route implementing method

An implementation method and routing technology, applied in digital transmission systems, electrical components, transmission systems, etc., can solve problems such as poor application flexibility and poor scalability of SpaceWire networks

Active Publication Date: 2013-10-09
HARBIN INST OF TECH
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Problems solved by technology

[0003] The present invention aims to solve the problem that the existing SpaceWire routers are all static routers, resulting in poor ...

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  • SpaceWire dynamic route implementing method
  • SpaceWire dynamic route implementing method

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specific Embodiment approach 1

[0015] Specific implementation mode one, combination figure 1 Explain this specific implementation, a SpaceWire dynamic routing implementation method, its method is: after the newly added SpaceWire node (with a unique logical address) joins the network, it first broadcasts a routing request data packet, which carries this data packet. The logical address and description information of the SpaceWire node (for example, what resources it has that can be used, so that it can be easily recognized and used by other devices in the system). When the SpaceWire router in the network system receives this data packet, it will update the physical address in the routing request packet according to the physical port corresponding to the received routing request packet (add the port number to the physical address of the routing request packet) After the domain), the broadcast is forwarded, and the routing table is updated according to the logical address of the SpaceWire node and the correspond...

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Abstract

The invention relates to a SpaceWire route implementing method, particularly relates to a SpaceWire dynamic route implementing method, and aims to solve the problems of poor application flexibility and expansibility of a SpaceWire network caused by the fact that all conventional SpaceWire routers are static routers. According to the method, the SpaceWire node newly added in a network firstly broadcasts and issues a route request data packet; upon reception of the data packet, the SpaceWire router in the network system updates and transmits a physical address in the route request data packet according to a corresponding physical port and updates a route table; other SpaceWire nodes update other stored node information and are added with the relevant information about the SpaceWire nodes to form a route request reply data packet and then transmits the route request reply data packet to the newly added SpaceWire node; when the route request reply data packet passes through the SpaceWire router, the SpaceWire router updates the physical address in the data packet and transmits the updated physical address to the newly added SpaceWire node; and after receiving the route request reply data packet, the newly added SpaceWire node updates the stored relevant information of other nodes. The method is applicable to dynamic route establishment in the communication process.

Description

Technical field [0001] The invention relates to a SpaceWire routing realization method. Background technique [0002] According to the spaceWire specification ECSS-E-50-12A, the SpaceWire router must support a dynamic routing mechanism, that is, the SpaceWire router can dynamically and frequently change routing based on data packets. The routers implemented now are static routers, that is, the routing table in the router is fixed. Therefore, this type of router does not conform to the ECSS-E-50-12A specification, and has poor flexibility in actual engineering applications, and the corresponding SpaceWire network has poor scalability. Summary of the invention [0003] The invention aims to solve the problems that the existing SpaceWire routers are static routers, resulting in poor application flexibility and poor scalability of the SpaceWire network, thereby providing a spaceWire dynamic routing realization method. [0004] A SpaceWire dynamic routing implementation method, which i...

Claims

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Application Information

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IPC IPC(8): H04L12/761H04L45/16
Inventor 罗清华彭宇赵光权乔立岩彭喜元
Owner HARBIN INST OF TECH
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