Re: [Detnet-dp-dt] a quick look at the replication/discarding case for detnet flows

Loa,

Ok. Thanks.  I think we also need to make clear that php is not always
necessarily done.

Jouni

Sent from a smart phone.. Mind the typos..

> On Jan 20, 2017, at 21:25, Loa Andersson <loa@pi.nu> wrote:
>
> Jouni,
>
>
>> On 2017-01-21 10:47, Jouni Korhonen wrote:
>> Loa,
>>
>> Thanks for the slides. The slide 9 is exactly what I was after with my e2e PW labels. Now the question: “I don’t know if there is currently enough capabilities in LDP to merge, unless we merge all traffic with the same FEC on the same outgoing outer label.” I cannot claim expertise in LDP
>
> If you have the same forwarding class and destination (part of the FEC
> defintion) LDP will merge. This mean that all detnet traffic from one
> node will arrive at D on the same (transport) LSP. I think this is fine
> since the label for that LDP is php'ed.
>  to be able to have any kind of educated view here. So if we are not
> going to be able to merge we would “waste” additional transport label
> between C->D?
>
> Yes but that is a label that will be unique for a link, we are not
> running into problems until we start trying to use domaion wide unique
> labels.
>
>  Duplicated would have been eliminated, thus there is no bandwidth impact.
>
> Correct!
>
> I do not think that would be an issue. It is no optimal but works.
>
> Well - I guess we could find some minor optimizations, but this wuth
> merging and php this is close to optimal.
>
> /Loa
>>
>> - Jouni
>>
>>
>> --
>> Jouni Korhonen, Broadcom Ltd.
>> M: +1-408-391-7160
>>
>>> On Jan 13, 2017, at 8:28 PM, Loa Andersson <loa@pi.nu> wrote:
>>>
>>> Folks,
>>>
>>> I took a quick look at the replication / discarding case we talked about at the meeting this week.
>>>
>>> Please remember that so far this is not a proposal, just a demonstration
>>> that there is at least one way of doing it.
>>>
>>> What is there can bee revised, improved, changed or discarded if we
>>> find something better. Take a look a send comments.
>>>
>>> /loa
>>>
>>> Warning: I have a grave case of dyslexia, so any odd or inventive
>>> spelling is pure accident.
>>> --
>>>
>>>
>>> Loa Andersson                        email: loa@mail01.huawei.com
>>> Senior MPLS Expert                          loa@pi.nu
>>> Huawei Technologies (consultant)     phone: +46 739 81 21 64
>>> <detnet-replication.pptx>_______________________________________________
>>> Detnet-dp-dt mailing list
>>> Detnet-dp-dt@ietf.org
>>> https://www.ietf.org/mailman/listinfo/detnet-dp-dt
>>
>
> --
>
>
> Loa Andersson                        email: loa@mail01.huawei.com
> Senior MPLS Expert                          loa@pi.nu
> Huawei Technologies (consultant)     phone: +46 739 81 21 64