netdev - Re: [Devel] [PATCH] Virtual ethernet device (tunnel)

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Message-ID: <463883C8.6090003@sw.ru>
Date:	Wed, 02 May 2007 16:27:52 +0400
From:	Pavel Emelianov <xemul@...ru>
To:	Daniel Lezcano <dlezcano@...ibm.com>
CC:	David Miller <davem@...emloft.net>,
	Patrick McHardy <kaber@...sh.net>,
	Linux Netdev List <netdev@...r.kernel.org>,
	Linux Containers <containers@...ts.osdl.org>,
	Ben Greear <greearb@...delatech.com>,
	Stephen Hemminger <shemminger@...ux-foundation.org>,
	devel@...nvz.org
Subject: Re: [Devel] [PATCH] Virtual ethernet device (tunnel)

Daniel Lezcano wrote:
> Pavel Emelianov wrote:
>> Veth stands for Virtual ETHernet. It is a simple tunnel driver
>> that works at the link layer and looks like a pair of ethernet
>> devices interconnected with each other.
>>
>> Mainly it allows to communicate between network namespaces but
>> it can be used as is as well.
>>
>> Eric recently sent a similar driver called etun. This
>> implementation is closer to the OpenVZ one and it lacks
>> some unimportant features of etun driver (like ethtool_ops)
>> for simplicity.
>>
>> The general difference from etun is that a netlink interface
>> is used to create and destroy the pairs. The patch for an
>> ip utility is also provided.
> if etun and veth are similar, why didn't you put the netlink interface
> to the etun driver instead of sending a new driver ?

Alexey said, that he preferred the name "veth" to "etun".
So an incremental patch would look too bad.

>    -- Daniel
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