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Scalability is of paramount importance in high-speed switch design. Two limiting factors are the complexity of switch fabric and the need for a sophisticated central scheduler. In this paper, we focus on designing a scalable multicast switch. Given the fact that the majority traffic on the Internet is unicast, a cost-effective solution is to adopt a unicast switch fabric for handling both unicast...
To avoid head of line blocking in switches, virtual output queues (VOQs) are commonly used. However, the number of VOQs grows quadratically with the number of ports, making this approach impractical for large switches. In this paper, we propose dynamic switch buffer management (DSBM) to tackle this problem. Similar to DBBM, it saves memory by reducing the number of buffers. Our scheme significantly...
A Combined Input and Crosspoint Queueing (CICQ) switch is a switch that has both buffers at the crosspoints of the switch fabric and buffers at the inputs. Inspired by the fixed frame based algorithm for an input-buffered switch and the smooth scheduling algorithm for a CICQ switch, in this paper we propose using a dynamic frame sizing algorithm for a CICQ switch. It is formally shown that such a...
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