Re: [mpls] Way two progress two mldp draft with an technical overlap

[Loa Andersson <[e-mail]>]

On 2014-02-05 05:58, Yakov Rekhter wrote:
> Loa,
>
>>>> Yakov,
>>>>
>>>> I can't see that this flies! In fact it is counter to the wg chair
>>>> proposal. We intended to keep the overlap as small as possible,
>>>> specify a function in the document that needs the function. We did
>>>> not intend to increase the overlap, but keep it as small as possible.
>>>>
>>>> You have this already neatly specified in draft-rekhter- let it stay
>>>> there.
>>>
>>> I am fine with keeping the encoding and the procedures for the two
>>> new mLDP TLVs: Transit IPv4 Shared Tree TLV, and Transit IPv6 Shared
>>> Tree TLV in draft-rekhter-mpls-pim-sm-over-mldp.
>>>
>>> However, I have a question on the following:
>>>
>>>     2.  Assuming that the drafts are adopted, complete
>>>     draft-wijnands-mpls-in-band-wildcard-encoding as the
>>>     normative protocol specification of the piece within the
>>>     overlap.
>>>
>>> What do you define as "the overlap" ?
>>>
>>> Yakov.
>>
>> Yakov and Ice,
>>
>> I'm sorry that I left the two draft hanging in a no mans land for
>> such a long time, other than traveling, being busy with other working
>> group issues, and having to do a couple of restarts there are no excuse.
>>
>> Yakov,
>>
>> It is my understanding that the overlap is summed up in the following
>> text from draft-rekhter:
>>
>>     "This document also identifies the deployment scenarios where BGP
>>      Source Active auto-discovery routes will not be used."
>>
>> More specifically, the overlap is the case where the service provider
>> has provisioned the network in such a way that the RP for a particular
>> group G is always between the receivers and the sources.  If the
>> network is provisioned that way, the ingress PE for (S,G) is always
>> the same as the ingress PE for the RP, so the SA A-D routes are never
>> needed.
>>
>> Draft-rekhter should be scoped to the case where the network is not
>> known to be provisioned in this way.
>
> Could you please propose the text that you'd like meto insert in
> draft-rekhter ?
>
> Yakov.
>

Yakov,

I will try to do so, as I understand it you agree to go ahead with
the wg adoption poll for draft-wijnands-mpls-mldp-in-band-wildcard-
encoding, while we sort out the text that needs to go into
draft-rekhter-mpls-pim-sm-over-mldp.

I will start this process as soon as I have a slot.

/Loa

-- 


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