Re: [mpls] MPLS-RT review of draft-smack-mpls-rfc4379bis

"Carlos Pignataro (cpignata)" <cpignata@cisco.com> Sun, 06 December 2015 20:04 UTC

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From: "Carlos Pignataro (cpignata)" <cpignata@cisco.com>
To: Yimin Shen <yshen@juniper.net>
Thread-Topic: MPLS-RT review of draft-smack-mpls-rfc4379bis
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Date: Sun, 06 Dec 2015 20:04:51 +0000
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Cc: "mpls@ietf.org" <mpls@ietf.org>, "mpls-chairs@ietf.org" <mpls-chairs@ietf.org>, "draft-smack-mpls-rfc4379bis@ietf.org" <draft-smack-mpls-rfc4379bis@ietf.org>
Subject: Re: [mpls] MPLS-RT review of draft-smack-mpls-rfc4379bis
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Yemen,

> On Dec 4, 2015, at 4:17 PM, Yimin Shen <yshen@juniper.net> wrote:
> 
> Hi authors,
> 
> I was selected as a reviewer for the draft-smack-mpls-rfc4379bis, and I have completed my review.

Thanks for your review.

> 
> I think this draft is useful, providing an overdue update for RFC 4379, which is the base RFC of a widely deployed protocol in MPLS networks.

Thanks for this summary!

> 
> One issue I have is that the draft is still specifying the packet format and mechanisms based on the Downstream Mapping TLV, which has been deprecated by the Downstream Detailed Mapping TLV defined by RFC 6424. I notice the section 1.5 where it briefly mentions the evaluation of incorporating some new RFCs to this draft. But it is unclear to me what the decision will be, whether the draft would stop here to provide just backward compatibility or it will take further steps to incorporate RFC 6424. So, before the draft is adopted, I'd like to see draft progress a little further on the to-do list and give and clearer strategy on this.
> 

It’s the other way around… we are waiting for adoption before making those changes, so that we can adequately write based on wg direction. This is as far as we got with an individual draft.

We plan on making these updates of DS/DDS, etc, after adoption.

Thanks!

— Carlos.

> 
> Thanks,
> 
> /Yimin Shen
>