Re: [sidr] WGLC: draft-ietf-sidr-bgpsec-reqs

Danny McPherson <danny@tcb.net> Fri, 11 November 2011 13:52 UTC

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From: Danny McPherson <danny@tcb.net>
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Date: Fri, 11 Nov 2011 08:49:41 -0500
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To: Christopher Morrow <morrowc.lists@gmail.com>
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Cc: Kotikalapudi Sriram <kotikalapudi.sriram@nist.gov>, sidr wg list <sidr@ietf.org>
Subject: Re: [sidr] WGLC: draft-ietf-sidr-bgpsec-reqs
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On Nov 11, 2011, at 8:19 AM, Christopher Morrow wrote:
> 
> There's actually some research on this, I recall the number 'globally'
> as 1.2 avg packing... but internally, that may be different, of
> course.

I'd be interested in a pointer to that Chris, if you could pass it along.

The only quantitative analysis I've seen of this is here:

<http://www.tcb.net/stuff/danny-ucla-pack.pdf>

It's 3 months of data from 6 monitors.  The basic observation is that 
around 30% to 40% updates are packed, and these packed updates 
carry up to 80% of prefixes -- a density that seems to be fairly consistent 
across both iBGP and eBGP monitors.

-danny