John,
may be the model described in this paper can be useful for you.
Yakup Koç, Almerima Jamakovic, Bart Gijsen, "A Global Reference Model
of the DNS"
presented at DNS-EASY 2011.
Here the proceedings:
http://www.gcsec.org/sites/default/files/files/dnseasy2011_final.pdf
Best
Emiliano
On 18 Feb 2012, at 02:57, John Levine wrote:
> Are there any models of DNS cache behavior, either analytic or
> simulations? What I have in mind is something that would help me see
> whether I should partition a cache among various kinds of traffic, or
> perhaps limit max TTLs, or experiment with replacement strategies.
>
> For that matter, what's the state of DNS modelling in general?
>
> I found a paper by Jung et al from 2003 on cache models which starts
> by asserting that caches are so big that entries only drop out due to
> TTL expiry, did a lot of analysis and simulation, and concluded that
> 15 minute TTLs got nearly the same cache benefit of 24 hr TTL.
>
> A 2010 paper by Alexiou et al. models the Kaminsky DNS poisoning
> attack and the port randomizing fix, which is interesting but not what
> I'm looking for. (They conclude that the attack is real, and the fix
> works OK.)
>
> Anything else I should be looking at?
>
>
> --
> Regards,
> John Levine, [email protected], Primary Perpetrator of "The Internet for
> Dummies",
> Please consider the environment before reading this e-mail. http://jl.ly
> _______________________________________________
> DNSOP mailing list
> [email protected]
> https://www.ietf.org/mailman/listinfo/dnsop
>
_______________________________________________
DNSOP mailing list
[email protected]
https://www.ietf.org/mailman/listinfo/dnsop
