Re: [mpls] Proposed text changes to draft-ietf-mpls-sfc - proposed 4.1

"Joel M. Halpern" <jmh@joelhalpern.com> Tue, 08 May 2018 13:14 UTC

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To: adrian@olddog.co.uk, mpls@ietf.org
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From: "Joel M. Halpern" <jmh@joelhalpern.com>
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Date: Tue, 08 May 2018 09:14:05 -0400
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Subject: Re: [mpls] Proposed text changes to draft-ietf-mpls-sfc - proposed 4.1
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The opening sentence you have proposed for section 4.1 is technically 
accurate, but seems misleading.  One of the benefits of NSH is that it 
has a path identifier that SFF do not change, while using an explicit 
position indicator.  I suggest a small text change below.

Thank you,
Joel

On 5/8/18 9:07 AM, Adrian Farrel wrote:
...
> 
> 4.1.  Label Swapping for Logical NSH
> 
>     The primary use case for SFC is described in [RFC7665] and delivered
>     using the NSH which, as described in [RFC8300], uses an encapsulation
>     that is modified at each SFC hop along the chain to indicate the next
>     hop.

s/that is modified at each SFC hop/with a position indicator that is 
modified at each SFC hod/

...