Heyung Sub Lee

Growable output queueing switch with shared knockout buses

In this paper, we propose a Growable Output Queueing switch with Shared knockout buses (GOQS). The proposed switch has a form of growable packet switch that consists of a packet distributing network and a set of routing networks. For the packet distributing network, we employ the sorted-banyan network. For the routing network, a set of small-scale switch modules are used. These two networks are interconnected by the shared knockout buses. With sharing the knockout bus, the following routing network can be further divided into a set of small-scale switch modules with output queue. As a result, the proposed switch has the flavor of both low complexity and the modular architecture of the switching fabric. Moreover, the output queueing of the switch modules can provide the best delay/throughput with a negligible probability of packet loss.

A method for accommodating storage service in optical access system

This paper describes the system structure for accommodating storage networking service in optical access system and the method of communication processing for providing through-connection between optical access system and iSCSI (Internet Small Computer Systems Interface) subscriber. The basic idea to implement the system is to use existing gigabit Ethernet technology products currently in service, and to develop a new iSCSI interworking part. We focused our attention on how the commonality of hardware and software architecture among different types of interworking units could be accomplished. The proposed concept of storage interworking architecture will provide flexibility to accommodate with storage networking service.