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

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