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

Sam Aldrin <aldrin.ietf@gmail.com> Thu, 08 May 2014 20:26 UTC

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From: Sam Aldrin <aldrin.ietf@gmail.com>
Date: Thu, 8 May 2014 13:26:30 -0700
To: "Les Ginsberg (ginsberg)" <ginsberg@cisco.com>
Archived-At: http://mailarchive.ietf.org/arch/msg/isis-wg/S-P5k-szkgvZ7zD8oid4WNahkyM
Cc: Jeffrey Haas <jhaas@pfrc.org>, "rtg-bfd@ietf.org" <rtg-bfd@ietf.org>, "isis-wg@ietf.org" <isis-wg@ietf.org>
Subject: Re: [Isis-wg] FW: New Version Notification for draft-ginsberg-isis-sbfd-discriminator-00.txt
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Hi Jeff,

We have had very lengthy discussions on this. As Les said, we could discuss as part of BFD effort. In fact I am looking forward to such discussion :D

Cheers
Sam

Sent from my iPhone

> On May 8, 2014, at 1:10 PM, "Les Ginsberg (ginsberg)" <ginsberg@cisco.com> wrote:
> 
> 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
> 
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