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RE: Gen-ART review of draft-ietf-bfd-mib-18

"Black, David" <david.black@emc.com> Tue, 29 April 2014 15:37 UTC

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From: "Black, David" <david.black@emc.com>
To: Jeffrey Haas <jhaas@pfrc.org>
Date: Tue, 29 Apr 2014 11:37:39 -0400
Subject: RE: Gen-ART review of draft-ietf-bfd-mib-18
Thread-Topic: Gen-ART review of draft-ietf-bfd-mib-18
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Jeff - could you work w/Nobo to get the word "historical" included in
the MIB draft as a characterization of BFD version 0 ?  For example,
the following text could be added to the introduction:

   because the BFD version 0 protocol is primarily of historical interest
   by comparison to the widespread deployment of the BFD version 1 protocol.

Thanks,
--David


> -----Original Message-----
> From: Jeffrey Haas [mailto:jhaas@pfrc.org]
> Sent: Tuesday, April 29, 2014 10:58 AM
> To: Black, David
> Cc: Nobo Akiya (nobo); tnadeau@lucidvision.com; Zafar Ali (zali); General Area
> Review Team (gen-art@ietf.org); rtg-bfd@ietf.org; ietf@ietf.org
> Subject: Re: Gen-ART review of draft-ietf-bfd-mib-18
> 
> On Tue, Apr 29, 2014 at 02:00:05AM -0400, Black, David wrote:
> > With respect to the MIB, this concern is a nit, so I'm ok with going ahead
> without
> > making this change ...
> >
> > ... However ...
> >
> > Your WG chairs and AD should be concerned that this significant flaw in
> > BFD version 0 (justifying a "SHOULD NOT use" recommendation) is
> undocumented.
> 
> And also un-RFCed.
> 
> It was a "work in progress" that never fully saw the light of full
> deployment.  Vendors very quickly moved to version 1 which fixed a critical
> issue in the state machine.  If any version 0 survives, it's historical and
> likely to be a source of operational agony rather than a useful feature.
> 
> -- Jeff

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