Re: [Pals] I-D Action: draft-cheng-pals-p2p-pw-multicast-01.txt

Stewart Bryant <stewart.bryant@gmail.com> Mon, 09 December 2019 19:53 UTC

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From: Stewart Bryant <stewart.bryant@gmail.com>
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Date: Mon, 09 Dec 2019 19:53:47 +0000
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Cc: David Sinicrope <david.sinicrope=40ericsson.com@dmarc.ietf.org>, draft-cheng-pals-p2p-pw-multicast@ietf.org, pals@ietf.org
To: Weiqiang Cheng <chengweiqiang@chinamobile.com>
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Subject: Re: [Pals] I-D Action: draft-cheng-pals-p2p-pw-multicast-01.txt
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Hi Weiqiang Cheng

Please can I suggest exploring with David (who I understand is the editor of that BBF text) revising the BBF document to include your case. 

Best Regards

Stewart


> On 25 Nov 2019, at 10:35, Weiqiang Cheng <chengweiqiang@chinamobile.com> wrote:
> 
> Hi David,
> Thank you very much for your information.
> We’ve read the document you provided and the application scenarios and solutions are different from the document.
> The solution here is intent to give a multicast solution, the OAM and the protection functions in the network which only support p2p PW. The solution is different from the solution in BBF document. 
>  
> B.R.
> Weiqiang Cheng
>  
>  
> 发件人: Pals [mailto:pals-bounces@ietf.org] 代表 David Sinicrope
> 发送时间: 2019年11月21日 16:28
> 收件人: Stewart Bryant
> 抄送: draft-cheng-pals-p2p-pw-multicast@ietf.org; pals@ietf.org
> 主题: Re: [Pals] I-D Action: draft-cheng-pals-p2p-pw-multicast-01.txt
>  
> https://www.broadband-forum.org/technical/download/TR-221_Issue-1.pdf <https://www.broadband-forum.org/technical/download/TR-221_Issue-1.pdf#page98>
> See Appendix F
>  
> And 
>  
> https://www.broadband-forum.org/technical/download/TR-224.pdf <https://www.broadband-forum.org/technical/download/TR-224.pdf#page71>
> Section 13
>  
> Not sure these give the detail needed but they seem to address the same topic as the draft.
>  
> Dave
>  
> 
> 
> On Nov 21, 2019, at 4:07 PM, Stewart Bryant <stewart.bryant@gmail.com> wrote:
> 
>> Hi,
>> 
>> Please can the authors help me understand why this is a PALS draft, or indeed why it is a draft at all?
>> 
>> I don’t think it proposes to extend the PALS technology. It simply uses PWs to carry L2 (presumably Ethernet) across a provider network, something that PWs already do.
>> 
>> Maybe I don’t understand the draft, but this looks like a deployment description that does not need standardisation.
>> 
>> Please can the authors help the WG better understand why this needs to be an IETF specification?
>> 
>> Best regards
>> 
>> Stewart
>> 
>> 
>> On 19 Nov 2019, at 14:55, internet-drafts@ietf.org wrote:
>>>  
>>>  
>>> A New Internet-Draft is available from the on-line Internet-Drafts directories.
>>>  
>>>  
>>>       Title           : Efficient Layer 2 Multicast with Point-to-Point Pseudowires
>>>       Authors         : Weiqiang Cheng
>>>                         Jie Dong
>>>    Filename        : draft-cheng-pals-p2p-pw-multicast-01.txt
>>>    Pages           : 6
>>>    Date            : 2019-11-18
>>>  
>>> Abstract:
>>>  Multicast services such as Evolved Multimedia Broadcast/Multicast
>>>  Service (eMBMS) become more and more popular in mobile networks.  In
>>>  mobile transport network, it is important for the operators to
>>>  provide efficient transport of multicast services with existing
>>>  network devices.  This document describes a mechanism of using point-
>>>  to-point Pseudowires (PW) [RFC3985] to achieve efficient layer 2
>>>  multicast transportation in mobile transport networks.The document
>>>  gives a multicast method by utilizing a Point-to-Point (P2P) path
>>>  between nodes in a packet transport network , according to the
>>>  destination IP address.  With it, the PTN nodes can replicate and
>>>  forward the service message, which are received from the multicast
>>>  server, to the plurality of multicast clients corresponding to the
>>>  destination IP address.
>>>  
>>>  
>>> The IETF datatracker status page for this draft is:
>>> https://datatracker.ietf.org/doc/draft-cheng-pals-p2p-pw-multicast/
>>>  
>>> There are also htmlized versions available at:
>>> https://tools.ietf.org/html/draft-cheng-pals-p2p-pw-multicast-01
>>> https://datatracker.ietf.org/doc/html/draft-cheng-pals-p2p-pw-multicast-01
>>>  
>>> A diff from the previous version is available at:
>>> https://www.ietf.org/rfcdiff?url2=draft-cheng-pals-p2p-pw-multicast-01
>>>  
>>>  
>>> Please note that it may take a couple of minutes from the time of submission
>>> until the htmlized version and diff are available at tools.ietf.org.
>>>  
>>> Internet-Drafts are also available by anonymous FTP at:
>>> ftp://ftp.ietf.org/internet-drafts/
>>>  
>>> _______________________________________________
>>> I-D-Announce mailing list
>>> I-D-Announce@ietf.org
>>> https://www.ietf.org/mailman/listinfo/i-d-announce
>>> Internet-Draft directories: http://www.ietf.org/shadow.html
>>> or ftp://ftp.ietf.org/ietf/1shadow-sites.txt
>> 
>> _______________________________________________
>> Pals mailing list
>> Pals@ietf.org
>> https://www.ietf.org/mailman/listinfo/pals