Re: [Detnet-dp-dt] An optional scheme that can support Detnet with a single layer of PW label

PW is normal PW, maybe the same as d-pw named by Loa; D-PW is a special PW set up between a pair of T-PEs (or S-PEs), not sure if it is similar to I-label as described by Balazs?
In my slide, d-pw will not be the same from one side of T-PE to the other side of T-PE, but change from one PW segment to another PW segment, just like in the MS-PW architecture.
But the label values of these PW segment can be allocated the same value (D-PW must be allocated a different value thus help to distinguish traffic from the normal PW).

Thanks,
Yuanlong

-----Original Message-----
From: Jouni Korhonen [mailto:jouni.korhonen@broadcom.com] 
Sent: Wednesday, February 22, 2017 12:02 PM
To: Jiangyuanlong
Cc: Loa Andersson; detnet-dp-dt@ietf.org
Subject: Re: An optional scheme that can support Detnet with a single layer of PW label

A quick question. What is the difference between PW and D-PW in your slides?

- Jouni

--
Jouni Korhonen, Broadcom Ltd.
M: +1-408-391-7160

> On Feb 21, 2017, at 1:30 AM, Jiangyuanlong <jiangyuanlong@huawei.com> wrote:
> 
> Hi all,
> 
> The intention of this slide is to provide an optional scheme that can support Detnet with a single layer of PW label. 
> For the time being the slide demonstrates that it is possible in the data plane.
> Your comments are very welcome.
> 
> Best regards,
> Yuanlong
> 
> 
> -----Original Message-----
> From: Detnet-dp-dt [mailto:detnet-dp-dt-bounces@ietf.org] On Behalf Of 
> Jouni Korhonen
> Sent: Sunday, February 19, 2017 3:29 PM
> To: Loa Andersson
> Cc: detnet-dp-dt@ietf.org
> Subject: Re: [Detnet-dp-dt] FRER example.. maybe a way forward? was 
> Re: quick notes from call 2/14/15
> 
> Loa,
> 
>> On 18 Feb 2017, at 23:26, Loa Andersson <loa@pi.nu> wrote:
>> 
>> 
>> 
>> On 2017-02-19 15:22, Jouni Korhonen wrote:
>>> 
>> <snip>
>>>> I don't follow - let us say we have one Ethernet and one TDM PW 
>>>> crossing the domain, id e use the same d-pw label, how do we know 
>>>> which one we do Ethernet NSP and which one we do TDM NSP on??
>>> 
>>> Of course each e2e detnet flow have their own d-pw. Otherwise you cannot make a difference between them. Being the same means an e2e detnet flow would have a single d-pw label throughout the detnet/administrative domain in each x-PE.
>>> 
>> OK . so what you are saying is that replicated packets will have the same d-pw? I agree to that!
> 
> Yes. 
> 
> - JOuni
> 
>> 
>> /Loa
>>> - Jouni
>> <snip>
>> --
>> 
>> 
>> Loa Andersson                        email: loa@mail01.huawei.com
>> Senior MPLS Expert                          loa@pi.nu
>> Huawei Technologies (consultant)     phone: +46 739 81 21 64
> 
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