Re: [mpls] comments on draft-ietf-mpls-sfc-encapsulation-01

Anoop Ghanwani <anoop@alumni.duke.edu> Wed, 05 December 2018 20:01 UTC

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From: Anoop Ghanwani <anoop@alumni.duke.edu>
Date: Wed, 5 Dec 2018 12:01:35 -0800
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To: agmalis@gmail.com
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Subject: Re: [mpls] comments on draft-ietf-mpls-sfc-encapsulation-01
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I agree, Andy.

Thanks,
Anoop

On Wed, Dec 5, 2018 at 11:39 AM Andrew G. Malis <agmalis@gmail.com> wrote:

> Anoop,
>
> Thanks again, we'll hold these for the next update. BTW, If we add a
> reference to draft-ietf-mpls-sfc, then it may also be useful to add a
> reference to draft-ietf-mpls-sfc-encapsulation in draft-ietf-mpls-sfc as
> well. Since that's already gone to the IESG, that'll have to be an IETF LC
> comment.
>
> Cheers,
> Andy
>
>
> On Wed, Dec 5, 2018 at 2:24 PM Anoop Ghanwani <anoop@alumni.duke.edu>
> wrote:
>
>> Hi Andy,
>>
>> Yes, I agree my comment wasn't complete.  Perhaps this is better:
>> "using MPLS as a replacement for NSH (with some loss of functionality) is
>> described elsewhere [x]."
>>
>> Also for the second comment, this may be better.
>>
>> "as a part of normal processing, the SFF Label becomes
>>
>> the top label in the stack."
>>
>>
>> Thanks,
>> Anoop
>>
>> On Wed, Dec 5, 2018 at 11:14 AM Andrew G. Malis <agmalis@gmail.com>
>> wrote:
>>
>>> Anoop,
>>>
>>> Thanks, I'll discuss these suggestions with my co-authors. Also, now
>>> that we've requested WG LC, Loa may want to treat this as a last call
>>> comment.
>>>
>>> Your first comment isn't quite correct, since draft-ietf-mpls-sfc only
>>> replaces some of the functions of the NSH. For example, there's no
>>> packet-by-packet metadata.
>>>
>>> Cheers,
>>> Andy
>>>
>>>
>>> On Wed, Dec 5, 2018 at 1:57 PM Anoop Ghanwani <anoop@alumni.duke.edu>
>>> wrote:
>>>
>>>> I think it would be useful for this document to reference
>>>> https://tools.ietf.org/html/draft-ietf-mpls-sfc
>>>> in the introduction to say that "using MPLS to replace the function of
>>>> NSH is described elsewhere [x]".
>>>>
>>>> I think the following:
>>>> >>>
>>>>
>>>> the SFF Label will rise to the top of the label stack before
>>>> the packet is forwarded to another node and before the packet
>>>> is dispatched to a higher layer.
>>>>
>>>> >>>
>>>> would be better worded as:
>>>>
>>>> "as a part of normal processing, the SFF Label will become
>>>>
>>>> the top label in the stack before the packet is forwarded
>>>>
>>>> to another node and before the packet is dispatched to a higher layer."
>>>>
>>>>
>>>> Thanks,
>>>> Anoop
>>>> _______________________________________________
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>>>> mpls@ietf.org
>>>> https://www.ietf.org/mailman/listinfo/mpls
>>>>
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>