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Re: [Softwires] Call for reviewersdraft-ietf-softwire-mesh-multicast

杨术 <yang.shu@sz.tsinghua.edu.cn> Tue, 26 April 2016 02:45 UTC

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Date: Tue, 26 Apr 2016 10:42:32 +0800
From: 杨术 <yang.shu@sz.tsinghua.edu.cn>
To: mohamed.boucadair@orange.com, softwires@ietf.org
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Subject: Re: [Softwires] Call for reviewersdraft-ietf-softwire-mesh-multicast
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Hi, Dear Mohamed,

Thank for you advices!

> * This draft covers two cases: IPv4-over-IPv6 and IPv6-over-IPv4. I see a potential overlap with draft-ietf-softwire-dslite-multicast (that passed the WGLC) for the IPv4-over-IPv6 case.
Our draft focus on the mesh 4over6 case mentioned in rfc 4925. The "hub and spoke" scenario is different with the ds-lite 4over6 case in rfc 6333.

> * The following section points to RFC7371. I think the authors meant https://tools.ietf.org/html/draft-ietf-mboned-64-multicast-address-format-06.   
We will update the references.

Shu Yang


> -------------------------------------------------------------
> 发件人：mohamed.boucadair
> 发送日期：2016-04-25 16:27:33
> 收件人：Ian Farrer; softwires@ietf.org
> 抄送：
> 主题：Re: [Softwires] Call for reviewersdraft-ietf-softwire-mesh-multicast
> 
> Hi Ian, all,
> 
> I have the following comments about this draft:
> 
> * This draft covers two cases: IPv4-over-IPv6 and IPv6-over-IPv4. I see a potential overlap with draft-ietf-softwire-dslite-multicast (that passed the WGLC) for the IPv4-over-IPv6 case. Unless there are some differences between these two documents for this case, I suggest to scope draft-ietf-softwire-mesh-multicast to focus on the IPv6-over-IPv4 and add a pointer to draft-ietf-softwire-dslite-multicast. Otherwise, it would be helpful to identify the differences between the two documents. 
> 
> * The following section points to RFC7371. I think the authors meant https://tools.ietf.org/html/draft-ietf-mboned-64-multicast-address-format-06.   
> 
> ==
> 4.2.  Group Address Mapping
> 
>    For IPv4-over-IPv6 scenario, a simple algorithmic mapping between
>    IPv4 multicast group addresses and IPv6 group addresses is supported.
>    [RFC7371] has already defined an applicable format.  Figure 4 is the
>    reminder of the format:
> 
> 
>      +---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+
>      | 0-------------32--40--48--56--64--72--80--88--96-----------127|
>      +---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+
>      |                    MPREFIX64                  |group  address |
>      +---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+
> 
> 
>            Figure 4: IPv4-Embedded IPv6 Multicast Address Format
> 
>    The MPREFIX64 for SSM mode is also defined in [RFC7371] :
> 
>    o  ff3x:0:8000::/96 ('x' is any valid scope)
> ==  
> 
> Thank you.
> 
> Cheers,
> Med
> 
> > -----Message d'origine-----
> > De : Softwires [mailto:softwires-bounces@ietf.org] De la part de Ian
> > Farrer
> > Envoyé : jeudi 7 avril 2016 16:59
> > À : softwires@ietf.org
> > Objet : [Softwires] Call for reviewers draft-ietf-softwire-mesh-multicast
> > 
> > Hi,
> > 
> > This document has been around for some time, but has not received any
> > substantive reviews. Can I ask for volunteers who are willing to provide
> > reviews?
> > 
> > Thanks,
> > Ian
> > 
> > 
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> > Softwires@ietf.org
> > https://www.ietf.org/mailman/listinfo/softwires
> 
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