Re: [dna] Review of draft-ietf-dna-simple-11

Ted Lemon <mellon@fugue.com> Tue, 24 November 2009 20:50 UTC

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From: Ted Lemon <mellon@fugue.com>
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Date: Tue, 24 Nov 2009 15:49:58 -0500
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To: Thomas Narten <narten@us.ibm.com>
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Subject: Re: [dna] Review of draft-ietf-dna-simple-11
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On Nov 24, 2009, at 2:30 PM, Thomas Narten wrote:
> Note, as a comparison point, a stack that does not implement DNA. When
> the node encounters a "link up" event, that presumably also implies a
> "link down" event preceding the "link up" event, and the default
> course of action should be to throw away all the old configuration
> information and then start the configuration process from scratch.

Nope, a device that doesn't implement DNA doesn't detect these events.   It's possible that a device might detect network attachment badly, which is the point of this document, but if you are noticing link transactions, by definition you are detecting network attachment.