Alan,

Can you tell me where you have the Best Practices document?

Thank You,

Terry Martin
Lockheed Martin
CMS - CITIC
3300 Lord Baltimore Drive, Suite 200, 21244  
Engineering Computing
Mainframe Support
Cell - 443 632-4191



-----Original Message-----
From: The IBM z/VM Operating System [mailto:IBMVM@LISTSERV.UARK.EDU] On Behalf 
Of Alan Altmark
Sent: Monday, April 04, 2011 5:03 PM
To: IBMVM@LISTSERV.UARK.EDU
Subject: New VSWITCH definition Best Practice

It's time for me to update my Best Practice for VSWITCH definition  With 
the changes that were made to z/VM 6.1 for zEnterprise ensembles, but 
which benefit non-ensemble configurations, there's a new sheriff in town. 
Forget "VLAN 666".  Here's what you really want to see:

         DEFINE VSWITCH ...  VLAN AWARE NATIVE NONE

This does the following:
1. Sets the VSWITCH in trunk mode
2. Requires that you explicitly authorize a guest to use one or more VLAN 
IDs.
3. If you don't provide an authorization, outbound traffic from the guest 
will be discarded.
4. No untagged frames from VLAN-aware guests will be emitted by the 
VSWITCH.

The new "VLAN AWARE" and "NATIVE NONE" are not available on z/VM 5.4.  You 
will have to continue with the VLAN 666 trick.

Regards,
      Alan

z/VM and Linux on System z Consultant
IBM System Lab Services and Training 
ibm.com/systems/services/labservices 
office: 607.429.3323
alan_altm...@us.ibm.com

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