Fair Bandwidth Sharing Between ER and EFCI Switches

概要

論文の詳細を見る
There are two kind of switches in the ABR service networks. They are Explicit Rate (ER) and Explicit Forward Congestion Indicator (EFCI) switches. The ER (newly developed for ABR service) switch can tell the sender to send exact rate that network can afford. By doing that, the network can reach an optimal operating point quickly. On the contrary, the EFCI switch can only afford to binary feedback to adjust the rate gradually. That kind of control will be not only slow but also will cause the bandwidth allocated between ER and EFCI switches unfairly. By installing the Reference Table (RT) in the source, it can help to solve the problems, that is, the unfair allocation and fast response for the EFCI switch. In, the study shows that the performance of virtual channels traversing large number of hops in WANs can be substantially improved by giving priority to network transit traffic over traffic entering the network. In the new scheme proposed, a Priority Assignment Mechanism (PAM) will not only take the number of hops into consideration but also the number of EFCI switches that the traffic gas passed since the switches in [2] are the same and the unfair bandwidth allocation between ER and EFCI switches is not discussed.
一般社団法人電子情報通信学会の論文
1996-09-18