Getting close to trying this, but...
For Linux to use it, I have to give a MAC address to Linux, right? (In
Yast/Network Devices/Network Card/Advanced Options.)
What do I use for a MAC address? And if I just pick one, how do I know
it's valid and not a dup on the net?
Thanks for any insight...
Lee
Alan Altmark wrote:
On Friday, 12/01/2006 at 08:27 MST, Lee Stewart
<[EMAIL PROTECTED]> wrote:
- We could set up a new vswitch as layer 2, but is it worth it to set up
a vswitch for one userid?
IMO, no, unless you anticipate adding more CS Linux servers.
- We could also dedicate an OSA attachment (just 3 unused device
addresses, not the whole OSA) to the userid and let it just run that
connection direct to the OSA and let Linux activate the layer 2 support.
Sounds good to me.
- Also is there any benefit to using a particular OSA card? Is it
better to send the SNA traffic over the OSA that is used by VTAM (will
the OSA route the packets directly to VTAM without going out on the net
like it does with IP packets)? (If I use the same, doesn't that mean
the MAC address of the sender and receiver will be the same?)
If you share the OSA with other VTAMs, then I think you will have to
configure unique SAPADDRs in the XCA major node. And I would guess that,
yes, the OSA will fast-path the packet in the adapter, but I don't know
fer shur.
- And lastly, since this is MAC address to MAC address, will the default
MAC address VM gives me work, or do I have to build one of my own?
For a layer 2 VSWITCH, each guest will get a unique MAC address, so they
can all use the same SAP. Since the remote VTAMs/NCPs will want a
specific MAC, use NICDEF to assign a static MAC address.
Alan Altmark
z/VM Development
IBM Endicott
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Lee Stewart, Senior SE
Sirius Enterprise Systems Group
Phone: (303) 798-2954
Fax: (720) 228-2321
[EMAIL PROTECTED]
www.siriuscom.com
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