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Re: [Pce] Query on Usage of LSP Identifier TLV in SR

Dhruv Dhody <dhruv.ietf@gmail.com> Tue, 13 October 2015 12:25 UTC

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From: Dhruv Dhody <dhruv.ietf@gmail.com>
To: Julien Meuric <julien.meuric@orange.com>
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Subject: Re: [Pce] Query on Usage of LSP Identifier TLV in SR
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Hi Julien, Girish,

Speaking as one of the authors of MBB draft[1], IMHO we need to re-spin the
draft based on the generic association draft [2] once it is adopted by the
WG.

And as Julien said, there won't be any "merging"!

BTW the original question in the thread still stands!

Regards,
Dhruv

[1] https://www.ietf.org/archive/id/draft-tanaka-pce-stateful-pce-mbb-03.txt
[2] https://tools.ietf.org/html/draft-minei-pce-association-group-03

On Tue, Oct 13, 2015 at 2:37 PM, Julien Meuric <julien.meuric@orange.com>
wrote:

> Hi Girish,
>
> Due to the very different levels of maturity between stateful-pce and MBB
> I-Ds, we do not see them merging. MBB I-D was very briefly discussed on the
> list a while ago, we do not know what the plans of the authors are...
>
> Regards,
>
> Julien
>
>
> Oct. 12, 2015 - girish134@gmail.com:
>
>>
>> piggy backing on Dhruv email ...
>>
>> During PCUpdate for SR LSP -  MBB process mentioned in
>> draft-tanaka-pce-stateful-pce-mbb applicable? The MBB draft has expired,
>> will it be incorporated in stateful-pce draft?
>>
>> Thanks,
>> Girish
>>
>> On Sun, Oct 11, 2015 at 10:58 PM, Dhruv Dhody <dhruv.dhody@huawei.com
>> <mailto:dhruv.dhody@huawei.com>> wrote:
>>
>>     Hi Authors,
>>
>>     In the stateful PCE draft [1], it says –
>>
>>     The LSP Identifiers TLV MUST be included in the LSP object in PCRpt
>>
>>     messages for RSVP-signaled LSPs.
>>
>>     The SR draft [2] did not mention anything about LSP Identifier TLV.
>>
>>     And in implementations that I am aware of, SR-TE LSP still uses
>>     the LSP-Identifier TLV. Is that correct? (I personally think so!!)
>>
>>     If yes, do you think there is a need to update –
>>
>>     -[1] to say all LSPs (and not just RSVP-signaled).
>>
>>     -Or [2] to say that LSP-Identifier TLV are also applicable to SR
>>     and MUST be included.
>>
>>     Thanks!
>>
>>     Dhruv
>>
>>     [1]
>>
>> https://tools.ietf.org/html/draft-ietf-pce-stateful-pce-11#section-7.3.1
>>
>>     [2] http://datatracker.ietf.org/doc/draft-ietf-pce-segment-routing/
>>
>>
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>>
>>
>>
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