On Tuesday, 08/31/2010 at 10:32 EDT, Billy Bingham 
<[email protected]> wrote:
> What makes this a Layer-3 VSWITCH vs a Layer-2?

If the VSWITCH is defined with the ETHERNET option, it is layer 2.  If you 
let it default to (or specify) the IP option, it is layer 3.  Only z/OS is 
limited to layer 3.  Everyone else (with current software) can use layer 
2.

Alan Altmark
z/VM Development
IBM Endicott

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