>you can have multiple VSWITCHes share the OSA using different device
addresses.  But when that happens, I start to question why you need two
VSWITCHes

I'm doing this to test moving from layer 3 to layer 2.  And, well
there's my VM stack who can't move.

Note that LACP will not let one do this - an OSA chpid will then get to
go to one and only 1 vswitch. (regardless if LPAR or VM)  (correct me if
I'm wrong Alan :)


But Brian, I'm confused about your reason.  Wouldn't you just want to
use a VLAN aware vswitch, put the guests on access port types, and issue
the set vswitch grant the the right vlan for the guest?



Marcy  
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-----Original Message-----
From: The IBM z/VM Operating System [mailto:[EMAIL PROTECTED] On
Behalf Of Alan Altmark
Sent: Thursday, July 17, 2008 11:54 AM
To: IBMVM@LISTSERV.UARK.EDU
Subject: Re: [IBMVM] VSWITCH

On Thursday, 07/17/2008 at 02:39 EDT, "Martin, Terry R. (CMS/CTR) (CTR)"

<[EMAIL PROTECTED]> wrote:
> I have a quick question. Can the same physical OSA address be used on
different 
> VSWITCHES?

The same *chpid* can be used on different VSWITCHes.  That is, LPAR1 and
LPAR2 can share an OSA chpid.  The device numbers used by each LPAR are
not important - they can be the same or different - it depends on the
IOCDS.

Within a single z/VM LPAR, the same device address cannot be used, but
as with LPARs, you can have multiple VSWITCHes share the OSA using
different device addresses.  But when that happens, I start to question
why you need two VSWITCHes.


Alan Altmark
z/VM Development
IBM Endicott

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