Here's the commit that adds Ethernet over GRE encapsulation to Linux:
http://tinyurl.com/ygpypxw
Once we have support for the feature, we'll add the appropriate
documentation about how to configure it through OVS.
--Justin
On Oct 27, 2009, at 2:27 PM, Huy Nguyen wrote:
What is ethernet over GRE? Is it a different module than ip_gre? How
does one create a gre tunnel using this mechanism?
Huy
--- On Tue, 10/27/09, Justin Pettit <[email protected]> wrote:
From: Justin Pettit <[email protected]>
Subject: Re: [ovs-discuss] Question about Ethernet over GRE
To: "Huy Nguyen" <[email protected]>
Cc: [email protected]
Date: Tuesday, October 27, 2009, 1:03 PM
On Oct 27, 2009, at 12:43 PM, Huy
Nguyen wrote:
At the openvswitch main page, I saw this feature
mentioned as under development. How can I learn more about
this feature? Can someone point me to the new code or a
functional specs if available?
We are planning to implement this feature in the next
couple of weeks, so all the details have not fully been
worked out yet. The rough plan is that an
administrator will be able to define a virtual port that
will define a GRE endpoint and key in the OVS configuration
file. That virtual port can then be added to an OVS
bridge over which Ethernet frames will be sent and
received.
On Linux, packet coming from a gre tunnel interface
does not have a real MAC header. I'm curious of what is the
plan to be able to bridge gre tunnel interfaces if that is
what being developed?
Support for Ethernet over GRE tunnels was added to Linux
2.6.28. I haven't had a chance to play with them yet,
but I would expect the frames to be able to just be sent and
received over the interface that is created when the GRE
tunnel is created by OVS.
--Justin
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