A method of realizing time synchronization in fc network

A technology of time synchronization and network, which is applied in the field of FC protocol and FC transmission, can solve the problems of insufficient accuracy and weak fault tolerance, and achieve the effects of fast time synchronization speed, wide adaptability and strong fault tolerance

Active Publication Date: 2019-07-26
成都光航信科技有限公司
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

[0005] The purpose of the present invention is to solve the problem that the current network needs accurate time synchronization with strong fault tolerance, and the existing technology is not accurate enough and the fault tolerance is not strong. The present invention provides a method for realizing time synchronization in the FC network

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  • A method of realizing time synchronization in fc network
  • A method of realizing time synchronization in fc network
  • A method of realizing time synchronization in fc network

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Embodiment Construction

[0035] All features disclosed in this specification, or steps in all methods or processes disclosed, may be combined in any manner except for mutually exclusive features and / or steps.

[0036] Below, the present invention will be described more clearly and completely with reference to the drawings and specific embodiments.

[0037] In this embodiment, for convenience, the respective ID primitives and ID_RDY primitives in FC device 1 and FC device 2 are distinguished. Specifically, the ID primitives will be described as ID primitive 1 and ID primitive 2, wherein, ID primitive 1 represents the primitive containing the deviceID of FC device 1, and ID primitive 2 represents the primitive containing the deviceID of FC device 2. primitive.

[0038] A method for realizing time synchronization in the FC network in this specific embodiment, each port of the FC device corresponds to a time synchronization unit, and the whole process of time synchronization of each link in the FC networ...

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Abstract

The invention discloses a method for realizing time synchronization in a FC network, and relates to the fields of FC protocol and FC transmission. The time synchronization of each FC device in the FC network includes the following steps: Step 1: Set different device IDs (hereinafter referred to as ID) on each FC device according to the clock priority, and generate ID primitives; Step 2: FC device 1 to The adjacent FC device 2 sends the primitive and time primitive including the deviceID configured in step 1, and starts timing at the same time; Step 3: FC device 2 receives and parses the ID primitive, and then replies ID_RDY primitive to FC device 1; step 4: FC device 1 stops timing and calculates the time difference after receiving the ID_RDY primitive sent by FC device 2; Step 5: FC device 1 receives the ID primitive, ID_RDY primitive and time primitive from FC device 2, and calculates Time synchronization is performed according to the ID priority in the obtained time difference. Compared with the prior art, the invention improves the precision of FC network clock synchronization and improves the fault tolerance of the clock synchronization process.

Description

technical field [0001] The invention relates to the field of FC protocol and FC transmission, in particular to a method for realizing time synchronization in FC network. Background technique [0002] FC (Fiber Channel) is a high-speed serial transmission bus proposed by the American Standardization Institute (ANSI). Due to its dual advantages of channel and network, it has the advantages of high bandwidth, high reliability, and resistance to electromagnetic interference. It can provide very stable and reliable Fiber optic connection, easy to build large-scale data transmission and communication network. The FC-AE standard is a set of protocols that FC applies to the avionics environment. It is mainly used for data communication between various devices in the avionics environment, and to transmit data such as video, command, instrumentation, and sensors. Currently, FC-AE The network has been widely used in many avionics networks and military equipment. [0003] Deterministi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04J3/06
CPCH04J3/0667H04J3/0682
Inventor 涂晓东陈起谢军蒋傅礼陈昌帧孟中楼
Owner 成都光航信科技有限公司
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