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

Hi Andy and Stewart,

Thank you very much for your suggestion.

We will have some off-line discussion with David and other BBF experts at first, and clarify value of the case and the solution. 

And then we will go back to IETF and discuss the direction.

B.R.

Weiqiang Cheng

发件人: Andrew G. Malis [mailto:agmalis@gmail.com] 
发送时间: 2019年12月10日 04:15
收件人: Weiqiang Cheng; Dongjie (Jimmy)
抄送: draft-cheng-pals-p2p-pw-multicast@ietf.org; pals@ietf.org; Adrian Farrel; David Sinicrope; Stewart Bryant
主题: Re: [Pals] I-D Action: draft-cheng-pals-p2p-pw-multicast-01.txt

Weiqiang and Jie,

I would suggest adding references to the BBF documents and limiting this draft to what's not already covered there, and using the Independent Stream to publish this as an implementation note for operators. I've copied the ISE for his comments as well.

Cheers,

Andy

On Mon, Dec 9, 2019 at 2:54 PM Stewart Bryant <stewart.bryant@gmail.com> wrote:

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#page98> https://www.broadband-forum.org/technical/download/TR-221_Issue-1.pdf

See Appendix F

And 

 <https://www.broadband-forum.org/technical/download/TR-224.pdf#page71> https://www.broadband-forum.org/technical/download/TR-224.pdf

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/

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