| Kentaro Hashimoto | Network Center, Enterprise Server Div., Information and Telecommunication Systems, |
| Tomoaki Kouzu | Network Center, Enterprise Server Div., Information and Telecommunication Systems, |
There has been tremendous increase in the volume and diversity of data as computer technologies have become more advanced in recent years, and this has created demand for networks that can carry larger quantities of data at higher throughputs. This has fueled a migration to broadband networks, and an active effort to integrate different kinds of data transmissions into one network to reduce costs. However, the inherent behavior of broadband networks is to make a best effort to deliver transmissions. Since best effort provides no absolute guarantees, this has led to a demand for different QoS (quality of service) classes to accommodate different traffic priorities and guaranteed networks that can ensure realtime delivery of data even if a network device or line fails. In order to meet this need, Hitachi, Ltd. has developed and deployed gigabit switch 4000/3000 series that guarantee bandwidth availability, that continue to support traffic even when a device or line fails, and that provide traffic volume monitoring and a host of other advanced functions. The combination of these capabilities support guaranteed networks.
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GS Series Gigabit Switches |
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The Hitachi Hyoron (Japanese Only) |
switch, guaranteed network, QoS, network redundancy technology, SAN
