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Technology Stocks : The New QLogic (ANCR)
QLGC 16.070.0%Aug 24 5:00 PM EST
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To: J Fieb who wrote (23938)9/1/1999 8:27:00 PM
From: fibrehound*  Read Replies (1) of 29386
 
64 port switch- I guess its out of the bag!

Multi-stage networks can be expanded in three ways:

1. By adding more cross-connect links (Inexpensive Wiring-only Expansion). This raises the overall fabric capacity and non-blocking percentage (the percentage of time each port has uncontested network access) without requiring additional switches, but does lower the number of available I/O ports.
2. By adding additional I/O switches (I/O Expansion). This increases the number of available end ports and overall fabric capacity while incurring only a minimum of additional blocking, depending on the number of cross-connect links used.
3. By adding additional cross-connect switches (Performance Expansion). This raises overall system performance considerably while maintaining approximately the same number of I/O ports.
When the number of cross-connect links equals the number of I/O ports, a 100% non-blocking configuration is achieved. Ancor's 64-port switch enables the creation of 100% non-blocking fabrics with as many as 2048 switch nodes -- all of which can experience simultaneous full-duplex gigabit-per-second access to the fabric. Large non-blocking configurations are not possible with any other architecture.
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