I have Linux, z/OS and z/VSE.  Hence the question about multiple vswitches.


Thanks, guys!

On Wed, Jan 21, 2009 at 3:42 PM, Alan Altmark <[email protected]>wrote:

> On Wednesday, 01/21/2009 at 02:44 EST, Mark Pace <[email protected]>
> wrote:
> > Latest layer 2 / layer 3 vswitch question.
> > Within z/VM 5.4,  can I have 1 layer 2 switch for my guests that support
> only
> > layer 2, and a layer 3 switch for linux and TCPIP?  Both would be
> connected to
> > the same OSA (z9) via different triplet addresses.
>
> Yes, you can do that on a z990/z890, z9, or z10 as long as you have May
> 2006 or newer microcode.  (This is mentioned in the OSA-Express Customer
> Guide and Reference, p.13.)
>
> BTW, with z/VM 5.4 you have layer 2 support for VM TCP/IP.  Linux has had
> layer 2 for a long time.  You don't need a layer 3 VSWITCH unless you have
> z/OS guests.
>
> Alan Altmark
> z/VM Development
> IBM Endicott
>



-- 
Mark Pace
Mainline Information Systems
1700 Summit Lake Drive
Tallahassee, FL. 32317

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