According to Randy Fardal, vice president of marketing at Nishan, the practical distance limits of these types of connections depends to a certain degree on the nature of the traffic. Traffic that is sensitive to timeouts, such as disk mirroring, can easily extend to 100 miles between nodes. Other types of traffic can extend to thousands of miles using the Nishan switches. "We have some 'secret sauce' built into the switches," said Fardal, "that allows us to extend the distances normally possible with Fibre Channel switches. So, we can connect Fibre Channel SANS that are hundreds or thousands of miles apart."
Telseon's network also provides bandwidth-provisioning tools that customers can use to temporarily increase the throughput of their links on their own. This allows users to accommodate planned peak periods of traffic without having to pay for that bandwidth during the balance of the month.
Telseon has metro networks in 20 major U.S. cities: Atlanta, Chicago, Cincinnati, Dallas, Denver, Detroit, Houston, Los Angeles, Miami, New York, Washington, D.C./Northern Virginia, Orlando, Philadelphia, Phoenix, San Diego, San Francisco Bay Area, Seattle, Silicon Valley, St. Louis, and Tampa.
Nishan has been shipping the IPS 3000 switch since February of this year.
For the record, Telseon and Nishan dont share the same VCs. - Ralph Barker, Editor in Chief, Byte and Switch
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