Re: [rrg] Let me see if I can summarize my concern with Locator Liveness

Brian E Carpenter <brian.e.carpenter@gmail.com> Mon, 22 December 2008 22:18 UTC

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Date: Tue, 23 Dec 2008 11:17:56 +1300
From: Brian E Carpenter <brian.e.carpenter@gmail.com>
Organization: University of Auckland
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To: David Meyer <dmm@1-4-5.net>
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Subject: Re: [rrg] Let me see if I can summarize my concern with Locator Liveness
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Dave,

> Where I have N source addresses and M
> destination addresses, this is easily shown to be
> O(N*M). 

Well, not quite, if you have an address selection algorithm
that excludes some combinations up front. Also, do we expect
N or M to be >3 in many cases, or even >2 in most cases?

So I think the practical value will be less than you fear,
typically 4, and >9 would be very rare. Not that this is
negligible, but it's not unthinkable either.

draft-ietf-shim6-locator-pair-selection and
draft-ietf-shim6-failure-detection talk about example mechanisms
for this, by the way.

    Brian
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