Re: [magma] MLDv2 router in the presence of MLDv1 Multicast Address Listeners

Indranil Bhattacharya <myselfindranil@gmail.com> Mon, 27 September 2010 06:11 UTC

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Date: Mon, 27 Sep 2010 11:42:20 +0530
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From: Indranil Bhattacharya <myselfindranil@gmail.com>
To: kawaguti@ysknet.co.jp
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Subject: Re: [magma] MLDv2 router in the presence of MLDv1 Multicast Address Listeners
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Hi Kiyoaki Kawaguchi,

                                Yes, I would think so. Otherwise there is a
possibility of some sources getting deleted. When MLDv1 receiver is present
in the LAN, this will not be acceptable.

Thanks,
Indranil

On Mon, Sep 27, 2010 at 8:46 AM, K.Kawaguchi <kawaguti@ysknet.co.jp> wrote:

> Hi all,
>
> I have a simple question for MLDv2 interoperation with MLDv1.
>
>
> RFC3810
> ---
> 8.3.  Multicast Router Behavior
>
> 8.3.2.  In the Presence of MLDv1 Multicast Address Listeners
>
>   MLDv2 BLOCK messages are ignored, as are source-lists in TO_EX()
>   messages (i.e., any TO_EX() message is treated as TO_EX( {} )).  On
>   the other hand, the Querier continues to send MLDv2 queries,
>   regardless of its Multicast Address Compatibility Mode.
> ---
>
>
> Is the follwing a correct right too?
>
>   "Any IS_EX() message is treated as IS_EX( {} )."
>
>
> Best Regards
> --
> Kiyoaki Kawaguchi
>
>
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