Analysis of data transfer efficiency in TCP/IP over ATM architecture for an enterprise network
The objective of the study is to provide a document with a thorough and systematic analysis and evaluation of TCP/IP over ATM architecture for an enterprise network, as well as a list of the elements that influence performance. The experiments in this paper were carried out on an ATM testbed consisting of a FORE ASX-200WG ATM switch and four hosts – two PCs with a clock speed of more than 233 MHz running Linux 2.0.27. Fore PCA200E ATM adapter cards and a Linux Device Driver were installed on all hosts. The findings given and described in this paper demonstrate that by properly used protocol and network parameters, it is possible to achieve extremely high throughputs when running TCP/IP over ATM. However, the ATM service category that an application requires might have a significant impact on performance. A best-effort service such as UBR or ABR (Available Bit Rate) could be chosen for typical burst data traffic. TCP error and flow/congestion control methods, as well as intelligent cell discard methods, may be required because congestion cannot be avoided and cell (packet) losses can occur.