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Technology Stocks : 3Com Corporation (COMS) -- Ignore unavailable to you. Want to Upgrade?

To: Marc Trombella who wrote (15595)	5/10/1998 9:52:00 PM
From: Mang Cheng	Read Replies (1) \| Respond to of 45548

High rating on SuperStack Switches by Tolly Group : "3Com's SuperStack II Switch 3300 and 1100s stacks up well against competitors in switch-to-switch and standalone switch tests" How many switch ports must be sacrificed to link four stackable Fast Ethernet switches? Recently testing of 3Com Corp.'s SuperStack II Switch 3300 and 1100s found no ports must be sacrificed for interconnecting the stackable switches. That's because 3Com utilizes an innovative Matrix System that provides a separate 1G bit/s dedicated port for switch interconnection. Testing proved that the switches forward 100% of all offered frames at all port utilization rates tested, up to and including 100%, in full-duplex operation. The tests were designed to determine how close the devices could come to delivering the theoretical maximum throughput levels. The test results show that the SuperStack II Switch 3300 delivered 100% of the 64-byte frames offered in all test configurations (see figure 2). Because of 3Com's effective flow control mechanism, even with 24 SmartBits test tools generating bidirectional traffic on each switch at 100% utilization (equal to over 4 Gbit/s of traffic), no frames were lost. By contrast, the performance of Bay Networks' and Cisco Systems' switches also tested slowly degrades as the interswitch link becomes saturated without flow control. tolly.com Mang