Re: [patch v4, kernel version 3.2.1] net/ipv4/ip_gre: Ethernet multipoint GRE over IP

[Jesse Gross <jesse@xxxxxxxxxx>]

On Tue, Jan 24, 2012 at 8:02 PM, David Miller <davem@xxxxxxxxxxxxx> wrote:
> From: Joseph Glanville <joseph.glanville@xxxxxxxxxxxxxx>
> Date: Wed, 25 Jan 2012 14:48:37 +1100
>
>> The reason why this patch is useful is that it stands to be the only
>> true mulitpoint L2 VPN with a kernel space forwarding plane.
>
> So what you're telling me is that I added this huge openvswitch
> thing essentially for nothing?

I think it's actually the opposite - Open vSwitch can be used to
implement this type of thing as well as for many other use cases.  On
the other hand, even when implementing a multipoint L2 solution it can
be useful to have additional levels of control but you can't do that
with this patch because it essentially statically glues together
tunneling and bridging.
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