Re: [Isis-wg] FW: New Version Notification for draft-ginsberg-isis-sbfd-discriminator-00.txt

"Les Ginsberg (ginsberg)" <ginsberg@cisco.com> Thu, 08 May 2014 20:10 UTC

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From: "Les Ginsberg (ginsberg)" <ginsberg@cisco.com>
To: Jeffrey Haas <jhaas@pfrc.org>
Thread-Topic: FW: New Version Notification for draft-ginsberg-isis-sbfd-discriminator-00.txt
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Date: Thu, 8 May 2014 20:10:35 +0000
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Subject: Re: [Isis-wg] FW: New Version Notification for draft-ginsberg-isis-sbfd-discriminator-00.txt
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Jeff -

How S-BFD Discriminators get used is a subject that no doubt the BFD WG will discuss at length in the near future. However, the additional information that may be required to differentiate how - when multiple discriminators are advertised by a node - each discriminator should be used is out of scope for the IGP advertisement. This gets into the area of application information which has to be defined/standardized elsewhere and does not belong in the IGP advertisements. So the deliberate intent here as far as the IGP advertisement is to limit it to simply a list of assigned discriminators - nothing more.

    Les

> -----Original Message-----
> From: Jeffrey Haas [mailto:jhaas@pfrc.org]
> Sent: Thursday, May 08, 2014 12:26 PM
> To: Les Ginsberg (ginsberg)
> Cc: isis-wg@ietf.org; rtg-bfd@ietf.org
> Subject: Re: FW: New Version Notification for draft-ginsberg-isis-sbfd-
> discriminator-00.txt
> 
> On Thu, May 08, 2014 at 02:48:54PM +0000, Les Ginsberg (ginsberg) wrote:
> > FYI - this new draft describes how to advertise S-BFD Discriminators using
> IS-IS.
> 
> So, the discriminators are intended to be box-wide?
> 
> I would have expected from some of the use cases that they'd be bound in
> some cases to specific interfaces.
> 
> -- Jeff