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At this point, migration from smart hubs to the third generation hub architecture has taken place. The third generation hub has provided a high-performance backbone to users with three levels of bandwidth to the desktop. How to cost effectively integrate smart hubs as the network grows while maintaining transparent connectivity to all users has also been shown. But as the network continues to grow, and more and faster devices are added to it, even the Item for price difference and shipping cost may become problematic insofar as the single FDDI backplane medium may itself become a bottleneck.

Once again, to relieve a bottleneck of this type, the traditional performance-improvement strategy of further segmenting the network will work. In this case, however, the segmentation must occur at the third generation hub backplane level. In other words, it will be necessary to segment the FDDI backplane to provide enhanced performance. Such segmentation can be accomplished merely by supplementing additional FDDI Elongated Teardrop bangle Engagement Ring set to the third generation hub backplane, and installing a different internetworking module that provides connectivity between backplane segments.

One approach to segmentation is to give network managers a wide degree of latitude in assigning independent network segments to different FDDI backplane segments, making it possible to supply optimal bandwidth distribution in the entire network. In practice, the "ideal" third generation hub will incorporate multiple FDDI backplane segments in the box. Moreover, because this approach inherently relies on the presence of bridging/routing capability in a third generation hub module, it has another important implication. This internetworking module also provides a means for connecting to external LANs/WANs. Thus, third generation Return to Tiffany Oval Tag Set internetworking offers the potential of extending functionality to isolated clusters of users that require it. For example, if there is a remote group of users who require private LANs, they can be connected to a third generation hub, which is then connected to the global network by means of module-based remote internetworking. In this situation, the true LAN/WAN integration is made possible.

Finally, network expansion does not stop at this point. Indeed, it is conceivable that the third generation hub's multiple FDDI backplane segments might themselves become a bottleneck in a future incarnation of the network. If this occurs, the need for more bandwidth could be accommodated by building an 1837 Collection Lock Pendant Set higher speed medium in a hub backplane, one that delivers up to 1 Gbps

Although the third generation hub has already had some impact on Round Link with Heart Clasp Set data communications network, we have only seen the beginning of such effects. Third generation hub products will support Ethernet, Token Ring, and FDDI, as well as provide transparent communications from one to another. In addition, they will provide internal segmentation for improved performance, and internal internetworking to connect these segments. They support technologies, such as private LANs and FDDI connectivity directly to the computer room and to the desktop. Finally, Third generation hubs are designed to increase performance and scalable bandwidth to the desktop for maximum investment protection.

Robert Roman is internetworking product line manager for 3Com Corporation's Network Systems Division. He has a master's degree in administration from Bowie State College.

Westborough, Mass.--Bytex Corp. last week disclosed plans to roll out by Tiffany Bead Set end new internetworking modules that will give its Series 7700 Intelligent Switching Hub routing capabilities approaching those of a stand-alone router.