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From: "Nicolas de Pesloüan" <nicolas.2p.debian@gmail.com>
To: Herbert Xu <herbert@gondor.apana.org.au>
Cc: Jay Vosburgh <fubar@us.ibm.com>,
	Andy Gospodarek <andy@greyhouse.net>,
	netdev@vger.kernel.org, David Miller <davem@davemloft.net>,
	Jiri Pirko <jpirko@redhat.com>
Subject: Re: [PATCH net-2.6] bonding: drop frames received with master's	source MAC
Date: Wed, 02 Mar 2011 21:30:27 +0100	[thread overview]
Message-ID: <4D6EA8E3.5020708@gmail.com> (raw)
In-Reply-To: <20110302123004.GA21002@gondor.apana.org.au>

Le 02/03/2011 13:30, Herbert Xu a écrit :
> On Wed, Mar 02, 2011 at 11:10:07AM +0100, Nicolas de Pesloüan wrote:
>>
>> If one decide to configure two interfaces with the same MAC and connect them
>> to the same LAN, then we get the exact same situation. Having eth0 and eth1
>> share a single MAC and a single IP address, connected to a switch in
>> Etherchannel mode is a perfectly valid setup, while suboptimal. And if the
>> Etherchannel mode happens to be improperly configured, we end up with the
>> same problem as reported by Andy.
>
> Right.  There's also the case where you have other MAC addresses
> sitting behind the bonding device, e.g., virtualisation.  So basing
> it purely on the bonding device's MAC address is probably not worth
> the trouble.
>
> Cheers,

I'm afraid we miss a general way to fix the general problem. We probably need to handle the problem 
at every places that can suffer from the multicast loop, until we find a general fix, if ever.

	Nicolas.


  reply	other threads:[~2011-03-02 20:30 UTC|newest]

Thread overview: 16+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2011-02-25 21:13 [PATCH net-2.6] bonding: drop frames received with master's source MAC Andy Gospodarek
2011-02-25 22:04 ` Nicolas de Pesloüan
2011-02-25 22:24   ` Andy Gospodarek
2011-02-25 23:08     ` Nicolas de Pesloüan
2011-02-28 16:32       ` Andy Gospodarek
2011-02-28 21:45         ` Nicolas de Pesloüan
2011-03-01  2:35           ` Andy Gospodarek
2011-03-01  5:46             ` Jay Vosburgh
2011-03-01 18:16               ` Andy Gospodarek
2011-03-01 21:30                 ` Nicolas de Pesloüan
2011-03-01 22:25                   ` Jay Vosburgh
2011-03-01 23:08                     ` Nicolas de Pesloüan
     [not found]                       ` <AANLkTi=QTDNBf7Jskj55NP64Os8kgEs1WMpFGHMo+K3B@mail.gmail.com>
2011-03-02 12:30                         ` Herbert Xu
2011-03-02 20:30                           ` Nicolas de Pesloüan [this message]
2011-03-02 20:26                       ` Nicolas de Pesloüan
2011-02-25 22:28   ` Jay Vosburgh

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