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

Loa Andersson <loa@pi.nu> Thu, 06 December 2018 00:26 UTC

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To: "Andrew G. Malis" <agmalis@gmail.com>, Anoop Ghanwani <anoop@alumni.duke.edu>
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From: Loa Andersson <loa@pi.nu>
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Date: Thu, 6 Dec 2018 08:26:03 +0800
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Subject: Re: [mpls] comments on draft-ietf-mpls-sfc-encapsulation-01
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Andy,

Since I will do a chair review and may have comments, there is a chance
to fold this in with my comments. I like to do all possible updates
before we start the wglc, since experience says that the better shape a
document is in the smoother the wglc (or any other review).

/Loa

On 2018-12-06 03:14, Andrew G. Malis 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 
> <mailto: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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-- 


Loa Andersson                        email: loa@pi.nu
Senior MPLS Expert
Bronze Dragon Consulting             phone: +46 739 81 21 64