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Badanie szybkości przesyłu danych pomiędzy dwoma węzłami w sieci komputerowej opartej na interfejsach Fast Ethernet, USB 2.0, IEEE-1394A
| Content Provider | Semantic Scholar |
|---|---|
| Author | Sawicki, Michał |
| Copyright Year | 2011 |
| Abstract | Currently the predominant standards of serial data transmission in computer systems are USB 2.0 and IEEE 1394a. The main use of these interfaces is the communication between the computer and peripherals, while a computer network, based on these standards, may be an unusual application. This paper presents the results of data transmission speed for USB 2.0 and FireWire 400 and Ethernet, which are used as network ports. For the purposes of the research three networks (Fig. 1,2,3) consisting of two nodes were built. In addition, an USB analyzer was connected into USB 2.0 network. When transferring data from one node to another, the byte reception rate on the second node was measured. For the USB interface, the software supplied by the transfer cable manufacturer allowed the data transmission in two modes: transfer and networking. The Figure 4 shows a comparison of the measured data transmission speed in the network based on tested interfaces. What is more, the graph in Figure 5 accounts for the USB transfer mode and presents the data transmission speed in the tested interfaces. Measured speeds were compared (Fig. 6) to upper limit rates as declared by the manufacturers. The measurement results confirmed the superiority of the IEEE 1394a interface over the Fast Ethernet, what was easy to predict due to the significant difference in the speed limit. The result for USB 2.0, in the case of network mode, turned out to be a surprise, though. Monitoring bus activity between the host and the buffer it can be noted that, in contrast to the transfer mode, in the network mode the file was split into fragments, and these fragments were sent for 1 ms in cycles every 15 ms. The fact that the bus was not used for 14 ms resulted in a poor data rate. The obtained results clearly showed that it is the FireWire interface, which should be selected when designing a computer network consisting of two nodes. If, however, a future expansion of the network with new nodes is planned, one should consider using the Fast Ethernet as a less problematic and cheaper solution. |
| Starting Page | 15 |
| Ending Page | 23 |
| Page Count | 9 |
| File Format | PDF HTM / HTML |
| Volume Number | 32 |
| Alternate Webpage(s) | http://studiainformatica.polsl.pl/index.php/SI/article/download/106/103 |
| Language | English |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Article |
