Design And Implementation Of TT-FC Network Monitoring Software

The time-triggered Fibre Channel network combined with TTE network and FC protocol is not only compatible with the original FC-related services,but also has good real-time performance.Based on the time-triggering mechanism of Ethernet,the FC network system can use this mechanism to realize the transmission of high broadband,low delay and high throughput,so that the transmission in the avionics network system is more real-time and reliable.TT-FC bus network monitoring software is of great significance.It not only provides important functions such as network status display,traffic monitoring and data recording during flight,but also can be used for network fault diagnosis,location and application data analysis during ground maintenance to help maintenance personnel discover and solve problems in time.During the research and development process of TT-FC related products,Can provide effective support for R&D personnel.In this paper,based on the time-triggered Fibre Channel network mechanism and monitoring requirements under TT-FC network,a time-triggered Fibre Channel network monitoring software is designed and implemented.It mainly consists of monitoring module and analysis module.The monitoring module mainly realizes the functions of equipment management,real-time statistics,real-time storage and real-time display.The analysis module mainly realizes the functions of data reading,data filtering,data searching,stream message framing,data transfer and data merging,so as to accurately monitor and analyze the data in TT-FC network.Aiming at the monitoring of time-triggered data in TT-FC network,this paper designs and implements the judgment function of time-triggered violation frames.In the monitoring module,real-time statistics of frame data of different virtual links are collected,and whether RC or TT frames conform to the configuration information is judged,and search and filter is carried out in the analysis module.Aiming at the problem of easy real-time display,this paper designs and implements the cache queue to ensure the correct display function.Aiming at the problem of slow traversal of large files,this paper designs and implements index method to improve the efficiency of monitoring traversal.In view of the bottleneck of monitoring storage,that is,the insufficient write disk speed,this paper studies different lossless compression algorithms,combines Snappy algorithm and LZ4 algorithm into monitoring software,performs streaming codec,greatly improves the storage performance of TT-FC monitoring software,and reduces the storage size of data files in the disk.In this paper,the design and implementation of TT-FC monitoring software are tested in detail,and the integrity and stability of the function are verified.