Re: [bess] WGLC, IPR and implementation poll for draft-ietf-bess-nsh-bgp-control-plane

John E Drake <jdrake@juniper.net> Sun, 27 January 2019 15:19 UTC

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From: John E Drake <jdrake@juniper.net>
To: "Andrew G. Malis" <agmalis@gmail.com>
CC: "Henderickx, Wim (Nokia - BE/Antwerp)" <wim.henderickx@nokia.com>, "stephane.litkowski@orange.com" <stephane.litkowski@orange.com>, "bess@ietf.org" <bess@ietf.org>, "bess-chairs@ietf.org" <bess-chairs@ietf.org>
Thread-Topic: [bess] WGLC, IPR and implementation poll for draft-ietf-bess-nsh-bgp-control-plane
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Archived-At: <https://mailarchive.ietf.org/arch/msg/bess/E1WzOKkWWIX-bBx2APrWOx1468Y>
Subject: Re: [bess] WGLC, IPR and implementation poll for draft-ietf-bess-nsh-bgp-control-plane
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Andy,

That sounds right.

Yours Irrespectively,

John

From: Andrew G. Malis <agmalis@gmail.com>
Sent: Friday, January 25, 2019 6:32 PM
To: John E Drake <jdrake@juniper.net>
Cc: Henderickx, Wim (Nokia - BE/Antwerp) <wim.henderickx@nokia.com>; stephane.litkowski@orange.com; bess@ietf.org; bess-chairs@ietf.org
Subject: Re: [bess] WGLC, IPR and implementation poll for draft-ietf-bess-nsh-bgp-control-plane

John,

So, in order to support draft-ietf-mpls-sfc-encapsulation, looking at draft-ietf-idr-tunnel-encaps, you would use the value 10 from the "BGP Tunnel Encapsulation Attribute Sub-TLVs" registry, and also from your draft use the SFP Traversal With MPLS Label Stack TLV and the SPI/SI Representation sub-TLV with bit 0 set and bit 1 cleared? I just want to make sure I correctly read the details.

Thanks,
Andy

On Tue, Jan 22, 2019 at 1:15 PM John E Drake <jdrake@juniper.net<mailto:jdrake@juniper.net>> wrote:
Wim,

The subject draft was designed w/ NSH in mind.  We added an MPLS representation of the NSH later, which is the subject of the first draft you referenced, below.

The way the subject draft is written, the representation of the NSH  and the type of transport tunnel can change on a hop-by-hop basis at the discretion of the selected next-hop SFF.  This is through the use of the encapsulation attribute, which gives us a very open-ended framework in which to work.

I think the latter two drafts you referenced, below, are actually supported already but what needs to be written down is exactly what an SFF needs to advertise in the encapsulation attribute in order to support them.

I would be happy to work on this w/ anyone else who is interested.

Yours Irrespectively,

John

From: BESS <bess-bounces@ietf.org<mailto:bess-bounces@ietf.org>> On Behalf Of Henderickx, Wim (Nokia - BE/Antwerp)
Sent: Tuesday, January 22, 2019 12:00 PM
To: stephane.litkowski@orange.com<mailto:stephane.litkowski@orange.com>; bess@ietf.org<mailto:bess@ietf.org>
Cc: bess-chairs@ietf.org<mailto:bess-chairs@ietf.org>
Subject: Re: [bess] WGLC, IPR and implementation poll for draft-ietf-bess-nsh-bgp-control-plane

I need to get into more details, but the current draft is written with draft-ietf-mpls-sfc-04 dataplane in mind. I believe that the draft can be useful with other dataplanes like: draft-ietf-mpls-sfc-encapsulation and draft-guichard-spring-nsh-s
So I would like the see the BGP control plane extensions here to become more generic to support multiple data-planes options. I need to go in more detail, but from high level this is my feedback here. I don’t want to stop/block this work as I believe this is a very useful proposal, but if we make it more generic it can serve a bigger purpose.

So I would like to see the following:

  1.  Protocol draft
  2.  Use case drafts for the different data planes.

My 2 cents.

From: BESS <bess-bounces@ietf.org<mailto:bess-bounces@ietf.org>> on behalf of Stephane Litkowski <stephane.litkowski@orange.com<mailto:stephane.litkowski@orange.com>>
Date: Monday, 21 January 2019 at 08:06
To: "bess@ietf.org<mailto:bess@ietf.org>" <bess@ietf.org<mailto:bess@ietf.org>>
Cc: "bess-chairs@ietf.org<mailto:bess-chairs@ietf.org>" <bess-chairs@ietf.org<mailto:bess-chairs@ietf.org>>
Subject: [bess] WGLC, IPR and implementation poll for draft-ietf-bess-nsh-bgp-control-plane


Hello Working Group,



This email starts a three weeks Working Group Last Call on  draft-ietf-bess-nsh-bgp-control-plane [1].



This poll runs until *the 4th of February*.



We are also polling for knowledge of any undisclosed IPR that applies to this Document, to ensure that IPR has been disclosed in compliance with IETF IPR rules (see RFCs 3979, 4879, 3669 and 5378 for more details).

If you are listed as an Author or a Contributor of this Document please respond to this email and indicate whether or not you are aware of any relevant undisclosed IPR. The Document won't progress without answers from all the Authors and Contributors.



We have several IPRs already disclosed.



If you are not listed as an Author or a Contributor, then please explicitly respond only if you are aware of any IPR that has not yet been disclosed in conformance with IETF rules.



We are also polling for any existing implementation as per [2].



    Thank you,

    Stephane & Matthew



    [1] https://datatracker.ietf.org/doc/draft-ietf-bess-nsh-bgp-control-plane/<https://urldefense.proofpoint.com/v2/url?u=https-3A__datatracker.ietf.org_doc_draft-2Dietf-2Dbess-2Dnsh-2Dbgp-2Dcontrol-2Dplane_&d=DwMGaQ&c=HAkYuh63rsuhr6Scbfh0UjBXeMK-ndb3voDTXcWzoCI&r=CRB2tJiQePk0cT-h5LGhEWH-s_xXXup3HzvBSMRj5VE&m=NmtJTnm15eI5V8pM4BEFevbruNYPMxijWj6csDXLze8&s=TfgMeOz6kzVSiGyw-h1RMGo9QIYi6K9bz8AcyCd3BNI&e=>



    [2] https://mailarchive.ietf.org/arch/msg/bess/cG3X1tTqb_vPC4rg56SEdkjqDpw<https://urldefense.proofpoint.com/v2/url?u=https-3A__mailarchive.ietf.org_arch_msg_bess_cG3X1tTqb-5FvPC4rg56SEdkjqDpw&d=DwMGaQ&c=HAkYuh63rsuhr6Scbfh0UjBXeMK-ndb3voDTXcWzoCI&r=CRB2tJiQePk0cT-h5LGhEWH-s_xXXup3HzvBSMRj5VE&m=NmtJTnm15eI5V8pM4BEFevbruNYPMxijWj6csDXLze8&s=hHwZCKH4zzsnENDFhTn86H9rP-vyWW-Wux-hC7pP6BE&e=>



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