netdev - Re: [PATCH net-next 1/2] vlan: don't allow vlan device to move between network namespaces

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Date:	Mon, 3 Mar 2014 08:57:51 +0800
From:	Ding Tianhong <dingtianhong@...wei.com>
To:	Toshiaki Makita <toshiaki.makita1@...il.com>
CC:	Toshiaki Makita <makita.toshiaki@....ntt.co.jp>, <kaber@...sh.net>,
	<julia.lawall@...6.fr>, <joe@...ches.com>, <davem@...emloft.net>,
	<netdev@...r.kernel.org>
Subject: Re: [PATCH net-next 1/2] vlan: don't allow vlan device to move between
 network namespaces

On 2014/2/28 21:07, Toshiaki Makita wrote:
> On Fri, 2014-02-28 at 16:52 +0800, Ding Tianhong wrote:
>> On 2014/2/28 16:12, Toshiaki Makita wrote:
>>> (2014/02/28 16:50), Ding Tianhong wrote:
>>>> Now the vlan device could move to another network namespace, but
>>>> the read dev is sill in the old network namespace, it is unsafe
>>>> and the vlan device could not work well, so don't allow to do it.
>>>
>>> Why is this a problem?
>>> This looks like a useful feature to me.
>>>
>>> Thanks,
>>> Toshiaki Makita
>>>
>> I think the vlan dev is a virtual device, if it does not with real dev together,
>> I am not sure whether it is correct. Maybe I miss something, pls remind me.
> 
> It can be used to aggregate/distribute traffic from/to each namespace.
> We can use vlan ids as identifiers for namespaces.
> If there is a problem with this usage, I don't want to disable this
> feature but want to fix the exact problem.
> 
> Thanks,
> Toshiaki Makita
> 

OK, I got it and agree with you.

Regards
Ding
> 
> 


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