[trimming headers]

Working Group,

While we're suspecting everyone is finishing up holidays, please take until
the end of this week to answer Reshad's question:  Should we require BFD for
vxlan to support Echo mode?

-- Jeff

On Thu, Aug 15, 2019 at 10:41:46PM +0000, Reshad Rahman (rrahman) wrote:
> Hi all,
> 
> It is up to the WG to decide whether echo support is desired for BFD over 
> VxLAN (any other BFD use-cases also).  Since this hasn’t been brought up in 
> the WG before, my take is that the WG isn’t interested in having echo for BFD 
> over VxLAN. So if anybody feels that we need echo support, please speak up 
> asap. Because it’s holiday season, let’s take 3 weeks instead of the usual 2, 
> so please respond by September 5th.
> 
> Regards,
> Reshad (co-chair hat).
> 
> From: Greg Mirsky <[email protected]>
> Date: Thursday, August 8, 2019 at 8:04 PM
> To: "Carlos Pignataro (cpignata)" <[email protected]>
> Cc: "[email protected]" <[email protected]>, "[email protected]" 
> <[email protected]>, Martin Vigoureux <[email protected]>
> Subject: Re: BFD Echo mode coverage in BFD for VXLAN
> Resent-From: <[email protected]>
> Resent-To: Jeffrey Haas <[email protected]>, <[email protected]>
> Resent-Date: Thursday, August 8, 2019 at 8:04 PM
> 
> Dear All,
> I was pointed out that my previous e-mail asking for WG help to progress BFD 
> over VXLAN document by sharing opinions regarding coverage of the BFD Echo 
> mode may be overstepping the bounds of an Editor. I apologize, that was not 
> my intention. I'm asking WG Chairs to help to arrive at the conclusion of 
> this question in a reasonable time.
> 
> Regards,
> Greg
> 
> On Thu, Aug 8, 2019 at 4:06 PM Greg Mirsky 
> <[email protected]<mailto:[email protected]>> wrote:
> Dear All,
> I have not set the when this poll closes. I hope that two weeks would be 
> sufficient time for the WG community to express their thoughts.
> 
> Dear Carlos,
> thank you for sharing your opinion on the scope of the document in regard to 
> BFD Echo mode. You've expressed support for exploring the applicability of 
> the BFD Echo mode. Would you support that effort by contributing some text, 
> if WG decides that documenting the applicability of the Echo mode in BFD over 
> VXLAN is useful?
> 
> Regards,
> Greg
> 
> 
> On Wed, Aug 7, 2019 at 6:18 PM Carlos Pignataro (cpignata) 
> <[email protected]<mailto:[email protected]>> wrote:
> Dear Greg,
> 
> The option of replacing the existing text for something more ambiguous and 
> implicit does not seem like progress in my humble opinion. The spec ends up 
> with the same capabilities, but the text is more obscure. I do not support 
> that option.
> 
> My recommendation for your consideration would be:
> 
>   1.  Explore if it is possible to run BFD Echo as a single-hop.
>   2.  If yes, add text supporting it.
>   3.  If no, add text explaining why not on technical grounds.
> 
> A less desirable option would be if the WG does not care about BFD Echo, to 
> explicitly keep it out of scope (not on technical grounds).
> 
> Best,
> 
> Carlos.
> 
> 
> On Aug 5, 2019, at 6:16 PM, Greg Mirsky 
> <[email protected]<mailto:[email protected]>> wrote:
> 
> Dear All,
> in course of reviews of the draft, several times a question was asked about 
> the rationale for excluding BFD Echo from the scope of this document:
> 
> 7.  Echo BFD
> 
>    Support for echo BFD is outside the scope of this document.
> Much appreciate your consideration of the following options:
> 
>   *   describe the applicability of BFD Echo in VXLAN environment in the 
> document;
>   *   remove Section 7 and clarify in the Introduction
> NEW TEXT:
> This specification describes procedures only for BFD Asynchronous mode.
> 
>   *   make no changes at all.
> Regards,
> Greg
> 

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