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Re: [Lsr] AD Review of draft-ietf-isis-te-app-09

"Les Ginsberg (ginsberg)" <ginsberg@cisco.com> Wed, 15 January 2020 20:48 UTC

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From: "Les Ginsberg (ginsberg)" <ginsberg@cisco.com>
To: Alvaro Retana <aretana.ietf@gmail.com>, "draft-ietf-isis-te-app@ietf.org" <draft-ietf-isis-te-app@ietf.org>
CC: "Acee Lindem (acee)" <acee@cisco.com>, "lsr-chairs@ietf.org" <lsr-chairs@ietf.org>, "lsr@ietf.org" <lsr@ietf.org>
Thread-Topic: AD Review of draft-ietf-isis-te-app-09
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Date: Wed, 15 Jan 2020 20:48:26 +0000
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Subject: Re: [Lsr] AD Review of draft-ietf-isis-te-app-09
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Alvaro -

A few pointed questions as we work on the revisions.

> 
> (A) Deployment Considerations
> 
> This document contains what I would characterize as a "distributed"
> Deployment Considerations section through §5, §6 and §7.  There is a
> lot of content, but I still made some comments in-line about other
> important information.  Please consider consolidating all the
> deployment-related information in one place.  rfc5706 (specially §2)
> may be useful, please take a look.
> 
[Les:] This comment covers three sections:

5.  Deployment Considerations 
6.  Attribute Advertisements and Enablement 
7.  Interoperability, Backwards Compatibility and Migration
       Concerns

Of these I think 5 and 7 could logically be combined and fall under the heading of "Deployment Considerations".
Section 6 is discussing a particular aspect of the protocol extensions - what the advertisement of link attributes associated with a particular application says about the state of that application on that link. This isn't a deployment consideration.

I therefore suggest that Section 6 remain as is but be placed BEFORE a new
Deployment Considerations section which will have the combined content of the current Sections 5 and 7 - plus revisions based on your comments.

Let me know if that makes sense to you.

> 
> [c] The OSPF abstract is more general, while this one provides more
> specifics...

[Les:] And which style do you prefer?

     Les

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