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SubjectRe: [patch v4, kernel version 3.2.1] net/ipv4/ip_gre: Ethernet multipoint GRE over IP
From: Štefan Gula <>
Date: Wed, 25 Jan 2012 23:57:18 +0100

> The performance is one of the most critical thing why I have chosen to
> build kernel patch in the first place instead of some user-space app.
> If I used this approach, I would probably end up with patch for
> OpenVPN project instead in that time. I am not telling that
> openvswitch is not a good place for prototyping, but I believe that
> this patch is beyond that border as it successfully run in environment
> with more 98 linux-based APs, used for 4K+ users, with no issue for
> more than 2 years. The performance results from Joseph Glanville even
> adds value to it. So I still don't get the point, why my patch and
> openvswitch cannot coexists in the kernel together and let user/admin
> to choose to correct solution for him/her.

You don't even know if openvswitch could provide acceptable levels
of performance, because you haven't even tried.

I'm not applying your patch.
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