netdev - RE: [net-next PATCH] net: allow vlan traffic to be received under bond

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Date:	Thu, 13 Oct 2011 17:59:42 +0200
From:	Hans Schillström <hans.schillstrom@...csson.com>
To:	Jiri Pirko <jpirko@...hat.com>, Maxime Bizon <mbizon@...ebox.fr>
CC:	John Fastabend <john.r.fastabend@...el.com>,
	"davem@...emloft.net" <davem@...emloft.net>,
	"netdev@...r.kernel.org" <netdev@...r.kernel.org>,
	"jesse@...ira.com" <jesse@...ira.com>,
	"fubar@...ibm.com" <fubar@...ibm.com>
Subject: RE: [net-next PATCH] net: allow vlan traffic to be received under
 bond

Thu, Oct 13, 2011 at 05:04:34PM CEST, mbizon@...ebox.fr wrote:
>>
>>On Tue, 2011-10-11 at 00:37 +0200, Jiri Pirko wrote:
>>
>>> Hmm, I must look at this again tomorrow but I have strong feeling this
>>> will break some some scenario including vlan-bridge-macvlan.
>>
>>unless I'm mistaken, today's behaviour:
>>
>># vconfig add eth0 100
>># brctl addbr br0
>># brctl addif br0 eth0
>>
>>=> eth0.100 gets no more packets, br0.100 is to be used
>>
>>after the patch won't we get the opposite ?
>
>Looks like it. The question is what is the correct behaviour...

I think this it become correct now, you should not destroy lover level if possible.
I.e. as John wrote "it's not an unexpected behaviour"

Consider adding a bridge to a vlan like this

vconfig add eth0 100
brctl addbr br1
brctl addif br1 eth0.100

If you later add a bridge (or bond) should the previous added bridge still work ? 
Yes I think so, for me it's the expected behaviour.

brctl addbr br0
brctl addif br0 eth0

Regards
Hans


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