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Method for sharing credit by multiple virtual links in AFDX (Avionics Full Duplex Switched Ethernet) network switch

A network switch and virtual link technology, applied in network interconnection, data exchange network, data exchange through path configuration, etc., can solve the problems of logic resource waste, network link bandwidth resource waste, etc., to save resources and save Network bandwidth resources, easy-to-achieve effects

Active Publication Date: 2016-04-27
XIAN AVIATION COMPUTING TECH RES INST OF AVIATION IND CORP OF CHINA
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Problems solved by technology

[0004] The present invention proposes a credit sharing method for multiple virtual links of an AFDX network switch. The present invention is based on the idea that a group of virtual links of multiple ports of the AFDX switch share the same credit account, and solves the problem that each VL occupies credit separately. The problem of waste of network link bandwidth resources and logic resources caused by accounts

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  • Method for sharing credit by multiple virtual links in AFDX (Avionics Full Duplex Switched Ethernet) network switch
  • Method for sharing credit by multiple virtual links in AFDX (Avionics Full Duplex Switched Ethernet) network switch

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Embodiment Construction

[0030] The present invention proposes a credit sharing method for multiple virtual links of an AFDX network switch, aiming at the work in which multiple AFDX end systems are connected to the same target end system through a switch and these sending end systems send data to the target end system in time-sharing mode, through the idea that different VLs of multiple ports of the AFDX switch share the same credit account, without changing the hardware and software of the AFDX end system, a group of virtual links on multiple ports of the AFDX network switch are designed to share the same credit account The identification and scheduling method of (AC) can solve the problem of waste of network link bandwidth resources and waste of logic resources caused by a group of VLs of different end systems separately occupying credit accounts.

[0031] Such as figure 1 As shown, each port of the switch is designed with m n-bit shared credit account identifier unit groups. Each port of the swit...

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Abstract

The invention belongs to the computer network technique and relates to a method for sharing credit by multiple virtual links in an AFDX network switch. According to the invention, the thought of sharing a same credit account by a set of virtual links of multiple ports of the AFDX network switch is proposed; the method for sharing the same credit account by the set of virtual links of the multiple ports of the AFDX network switch is designed; the problem of wasting network link bandwidth resource and logic resource resulted from occupying the credit account respectively by every VL is solved. The solution of the invention is featured by saving resource, easy realization and good expandability.

Description

technical field [0001] The invention belongs to computer technology and relates to a credit sharing method for multiple virtual links of an AFDX network switch. Background technique [0002] The Airborne Full-Duplex Switched Ethernet (AFDX) network consists of dual redundant switches and end systems for distributed communications. Under normal circumstances, a virtual link (VL) of each port of the AFDX switch occupies an independent credit account, and the frame flow control strategy is adopted to realize the bandwidth flow limitation of the VL. [0003] For the working mode in which multiple AFDX end systems are connected to the same target AFDX end system through a switch, and these sending end systems send data to the target end system in a time-sharing manner, the existing technical solutions usually define a separate destination for each sending end system. The VL credit account of the target system, therefore, brings the following problems: Most of the switch ports ar...

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Application Information

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IPC IPC(8): H04L12/46
CPCH04L12/4641H04L12/4679
Inventor 王世奎张旭邱征刘航李雯王建宇
Owner XIAN AVIATION COMPUTING TECH RES INST OF AVIATION IND CORP OF CHINA
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