afdx exchange product exchange technology delay index test device

A switching technology and index testing technology, applied in the field of test devices, can solve problems such as the inability to comprehensively evaluate the index level of the product under test and the limited number of forwarding channels.

Active Publication Date: 2021-04-23
CHINESE AERONAUTICAL RADIO ELECTRONICS RES INST
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Problems solved by technology

[0006] The number of forwarding channels covered by the traditional forwarding channel delay sampling test is very limited, and the index level of the tested product cannot be fully evaluated

Method used

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  • afdx exchange product exchange technology delay index test device
  • afdx exchange product exchange technology delay index test device

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Embodiment Construction

[0019] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. Wherein, the port labels in the drawings are only for illustration, and are convenient for text description.

[0020] The AFDX switching product switching technology delay index test device includes a network terminal emulation module and a network channel building module. The AFDX switching product switching technology delay indicator test device provides a network channel covering all network ports for the tested product. When the tested product has N ports, the number of ports of the network channel building block needs to be greater than or equal to (N+4) , the number of network terminal emulation module ports must be greater than or equal to 2.

[0021] Port 1 to port N of the network channel building block establish external connections with the N ports of the product under test one by one, port 1+N of the network channel building block e...

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Abstract

The invention discloses an AFDX switching product switching technology delay index testing device, which includes a network terminal simulation module and a network channel building module, and the ports 1 to N of the network channel building module are established one by one with the N ports of the product under test External connection, port 1+N establishes external connection with port 2+N, port 4+N establishes internal connection with port 1 to port N and port 1+N respectively, and port 3+N establishes internal connection with port 2+N, Port 4+N establishes an external connection with port A of the network terminal emulation module, and port 3+N establishes an external connection with port B of the network terminal emulation module. The invention can quickly collect the technical delay on all the forwarding channels of the tested product, thereby realizing the effective evaluation of the technical delay index and providing guarantee for the certainty of the aviation network bus.

Description

technical field [0001] The invention relates to a test device for testing the switching technology delay index of AFDX (aviation electronics full-duplex switching Ethernet) switching products. Background technique [0002] Avionics full-duplex switched Ethernet is a high-speed network with a star topology at the core of a switch. This network uses virtual links as virtual carriers for network data transmission, and controls the same virtual link (or belongs to The bandwidth occupied by different virtual links of the same group of credits) can effectively allocate network resources, avoid network congestion, and enhance network certainty. [0003] The switching products used in avionics full-duplex switched Ethernet are the core equipment of the network, and the delay of switching technology has an important impact on the determinism of network transmission. [0004] The switching technology delay index of traditional avionics full-duplex switched Ethernet-related switching ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L12/26
CPCH04L43/0852H04L43/50
Inventor 张玉杰周卓陈阵
Owner CHINESE AERONAUTICAL RADIO ELECTRONICS RES INST
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