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

[Loa Andersson <[e-mail]>]

Jouni,

Depends on what you mean by " not always necessarily done", php is done 
by default but can be turned off. I see no reason to turn it of, at
least not if we are concerned for the depth of the label stack.

/Loa

On 2017-01-22 00:27, Jouni Korhonen wrote:
> 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 <[e-mail]> 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: [phone]
>>>
>>>> On Jan 13, 2017, at 8:28 PM, Loa Andersson <[e-mail]> 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: [e-mail]
>>>> Senior MPLS Expert                          [e-mail]
>>>> Huawei Technologies (consultant)     phone: [phone]
>>>> <detnet-replication.pptx>_______________________________________________
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>>>
>>
>> --
>>
>>
>> Loa Andersson                        email: [e-mail]
>> Senior MPLS Expert                          [e-mail]
>> Huawei Technologies (consultant)     phone: [phone]
>
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-- 


Loa Andersson                        email: [e-mail]
Senior MPLS Expert                          [e-mail]
Huawei Technologies (consultant)     phone: [phone]