Richard Burts Mon, 02/23/2009 - 20:42
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The main advantage of stacking is that you get to take several individual switches and configure them and treat them as a single entity instead of as several independent individuals..

Also, depending on the particular switches and their stacking technology, you may have a switch to switch connection at much higher throughput than the capacity of an access port (or trunk port) connection between switches.



e.claveau Tue, 02/24/2009 - 04:47
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You also have the advantage of using a cross stack LACP etherchannel for redundancy instead of relying on spanning tree when using a stack as a distribution layer switch or as a server access layer switch.

Joseph W. Doherty Tue, 02/24/2009 - 05:46
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The "stacking" the other posters have noted usually uses a special dedicated stack port. Cisco's 3750 and 3750-E series Stackwise/Stackwise+ is an example, see for more information.

An earlier version of Cisco "stacking" technology was GigaStack, see or

However, I've also noticed "stacking" is sometimes used for a set of switches, often in a rack, that "daisy chain" or "cascade" port connections from one to the next. In this configuration, each switch is configured independently (unless perhaps switch "clustering" is supported). Such a configuration uses less ports than a "star" configuration.


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