Evaluation of Gigabit Ethernet with quality of service for event builder

A Gigabit Ethernet (GbE) is one of the candidates to be integrated to an event builder for next generation experiments on high-energy physics. This paper discusses the feasibility of applying GbE to an event builder. Congestion avoidance of event data flow in a switching network is crucial. Traffic management of the data flow is an essential point to avoid the congestion. Global traffic control is one of the mechanisms to manage the traffic. It uses global information of the switching network, while a traffic shaping technique is another mechanism not to use them. This paper studied traffic shaping of GbE with a mechanism of quality of service (QoS). The performance of the GbE with large frame called a jumbo frame was also studied