Re: [bess] Comments about draft-gmsm-bess-evpn-bfd-01

Donald Eastlake <d3e3e3@gmail.com> Tue, 06 November 2018 11:59 UTC

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From: Donald Eastlake <d3e3e3@gmail.com>
Date: Tue, 6 Nov 2018 06:59:19 -0500
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To: jorge.rabadan@nokia.com
Cc: bess@ietf.org, draft-gmsm-bess-evpn-bfd.authors@ietf.org
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Subject: Re: [bess] Comments about draft-gmsm-bess-evpn-bfd-01
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Hi Jorge,

On Mon, Nov 5, 2018 at 9:12 PM Rabadan, Jorge (Nokia - US/Mountain
View) <jorge.rabadan@nokia.com> wrote:
>
> Hi Donald,
>
> Thank you for this.
> For the second question, I get from your answer that you will keep both encapsulations for the time being?

Well, once a draft is posted, it can't be changed, so the currently
posted -01 won't change but the -02 version that is being worked on
and is not yet posted eliminates the alternative encapsulation.

Thanks,
Donald
===============================
 Donald E. Eastlake 3rd   +1-508-333-2270 (cell)
 1424 Pro Shop Court, Davenport, FL 33896 USA
 d3e3e3@gmail.com

> Thanks.
> Jorge
>
>
> -----Original Message-----
> From: Donald Eastlake <d3e3e3@gmail.com>
> Date: Monday, November 5, 2018 at 8:48 PM
> To: "Rabadan, Jorge (Nokia - US/Mountain View)" <jorge.rabadan@nokia.com>
> Cc: "bess@ietf.org" <bess@ietf.org>rg>, "draft-gmsm-bess-evpn-bfd.authors@ietf.org" <draft-gmsm-bess-evpn-bfd.authors@ietf.org>
> Subject: Re: Comments about draft-gmsm-bess-evpn-bfd-01
>
>     Hi Jorge,
>
>     On Mon, Nov 5, 2018 at 4:44 AM Rabadan, Jorge (Nokia - US/Mountain
>     View) <jorge.rabadan@nokia.com> wrote:
>     >
>     > Dear authors,
>     >
>     > I couldn’t make it to the BESS meeting, so my apologies if some of these things have been discussed.
>     >
>     > Some comments/questions:
>
>     Thanks for sending comments.
>
>     > - In the last IETF, I suggested the use of BGP and the BGP-BFD attribute to exchange discriminators, as in section 3.1.6 of draft-ietf-bess-mvpn-fast-failover. The idea seemed to be accepted, but it is not in the new version. This would allow the signaling of the discriminators along with MAC/IP routes, IMET routes, AD per-EVI routes, IP-Prefix routes, etc. without the burden of having to support the EVPN LSP-ping draft.
>
>     There is a draft version -02 in the works intended to include
>     distribution of BFD discriminators in BGP but this revision was not
>     completed to the agreement of the authors in time to posted before
>     this meeting.
>
>     > - The draft describes an encapsulation and an alternative encapsulation. Is the intend to keep both? Wouldn't be better to leave only one to ease implementations and interoperability?
>
>     Currently, the candidate version -02 draft dispenses with with the
>     alternative encapsulation.
>
>     Thanks,
>     Donald
>     ===============================
>      Donald E. Eastlake 3rd   +1-508-333-2270 (cell)
>      1424 Pro Shop Court, Davenport, FL 33896 USA
>      d3e3e3@gmail.com
>
>     > Thank you.
>     > Jorge
>
>