Design of Partially Buffered Crossbar Switches for Supporting Mixed Traffic
Wen-Fong Wang, Li-Chuan Hung, Ching-Sung Lu · 2013
Because new multicasting applications on the Internet are numerous, the demands of multicast traffic will continue growing. Currently, the CICQ with N2 VOQs for unicast flow and k MQs for multicast flow is the major architecture to support mixed traffic. In this study, we propose a switch called multicast virtual output queues and partially buffered crossbar switch (MQ-PBD) to support mix traffic. The number of CB in MQ-PBC switch is much less than traditional CICQ switch and a three phase (request-grant-accept) matching algorithm is adopted to solve the contentions. We also proposed two selecting scheme, MURR and MF, for input schedulers. The experimental results showed that the proposed MQ-PBC switch can achieve well performance and efficiently support the mix traffic.