netdev - Re: [PATCH 1/1] tun: change speed from 10M to dynamically configured

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Date:	Fri, 13 Feb 2015 10:45:50 +0800
From:	yzhu1 <Yanjun.Zhu@...driver.com>
To:	Stephen Hemminger <stephen@...workplumber.org>
CC:	<netdev@...r.kernel.org>, <mst@...hat.com>, <jasowang@...hat.com>,
	<viro@...iv.linux.org.uk>, <davem@...emloft.net>
Subject: Re: [PATCH 1/1] tun: change speed from 10M to dynamically configured

On 02/12/2015 08:55 PM, Stephen Hemminger wrote:
> On Thu, 12 Feb 2015 13:35:23 +0800
> Zhu Yanjun <Yanjun.Zhu@...driver.com> wrote:
>
>> From: Zhu Yanjun <yanjun.zhu@...driver.com>
>>
>> The default speed of normal nic is 1000M while the default speed
>> of tun is 10M. Now the default speed of tun is changed to 1000M.
>> And there are 3 options: 10M, 100M and 1000M to the speed of tun.
>> The command "ethtool -s tun0 speed 10/100/1000" can configure the
>> speed of tun dynamically.
>>
>> CC: Michael S. Tsirkin <mst@...hat.com>
>> CC: Jason Wang <jasowang@...hat.com>
>> CC: Al Viro <viro@...iv.linux.org.uk>
>> Signed-off-by: Zhu Yanjun <yanjun.zhu@...driver.com>
>> Signed-off-by: Zhu Yanjun <Yanjun.Zhu@...driver.com>
> Why limit to 10/100/1000 speed?
> Ethtool speed can be any value
Thanks for your comments.

Yes. But the real physical nic speed often 10M, 100M and 1000M.
This simulates the physical nic.

Zhu Yanjun
>
>>   
>
>

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