On Thu, 20 Feb 2014 09:44:45 +0000, Pavelka, Tomas wrote:
Another question that comes to mind is, if there is negotiation with
OSA, how does Linux tell that there is a real OSA involved? My
assumptions (which may be false ;-)) were that Linux as a z/VM guest
should not be able to tell whether a NIC is real or virtual. And in
our case the NIC is always virtual, because we do not connect
directly
to the OSA, we go through a vswitch. The bridging works as long as
the
traffic does not go through the OSA card, so somehow the Linux guest
is able to pass frames with MAC addresses it does not own. These
frames are only dropped if they go towards the OSA. I was not able to
tell whether they are dropped by the OSA or by the vswitch which
connects to the OSA. But the same vswitch passes the bridged packets
with no problems to other Linux machines inside the box...
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Hello all,
You have a RedBooks - OSA-Express Implementation Guide
http://www.redbooks.ibm.com/redpieces/abstracts/sg245948.html?Open
Best regards
Carlos Romero Martin
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