nanog mailing list archives
Re: What DNS Is Not
From: bmanning () vacation karoshi com
Date: Mon, 9 Nov 2009 00:46:48 +0000
On Sun, Nov 08, 2009 at 07:42:18PM -0500, David Andersen wrote:
On Nov 8, 2009, at 7:30 PM, bmanning () vacation karoshi com wrote:On Sun, Nov 08, 2009 at 07:17:16PM -0500, David Andersen wrote:"Our trace-driven simulations yield two findings. First, reducing the------------Davea simulation is driven from a mathmatical model, not real world constructions.Hi, Bill - The paper is worth reading. "The paper also presents the results of trace-driven simulations that explore the effect of varying TTLs and varying degrees of cache sharing on DNS cache hit rates. " emphasis on *trace-driven*. Now, you can argue whether or not their traces are representative (whatever that means) -- they used client DNS and TCP connection traces from MIT and KAIST, so it definitely has a .edu bias, iff there is a bias in DNS traffic for universities vs. "the real world", but to the extent that their traces represent what other groups of users might see, their evaluation seems accurate. -Dave
I'm not debating the traces - I wonder about the simulation model. (and yes, I've read the paper) --bill
Current thread:
- What DNS Is Not Alex Balashov (Nov 08)
- Re: What DNS Is Not Dave Temkin (Nov 08)
- Re: What DNS Is Not Alex Balashov (Nov 08)
- Re: What DNS Is Not Dave Temkin (Nov 08)
- Re: What DNS Is Not David Andersen (Nov 08)
- Re: What DNS Is Not bmanning (Nov 08)
- Re: What DNS Is Not David Andersen (Nov 08)
- Re: What DNS Is Not bmanning (Nov 08)
- Re: What DNS Is Not David Andersen (Nov 08)
- Re: What DNS Is Not David Conrad (Nov 08)
- Re: What DNS Is Not Paul Ferguson (Nov 08)
- Re: What DNS Is Not Alex Balashov (Nov 08)
- Re: What DNS Is Not Dave Temkin (Nov 08)
- Re: What DNS Is Not Scott Howard (Nov 08)
- Re: What DNS Is Not Paul Wall (Nov 08)
- Re: What DNS Is Not Joe Greco (Nov 08)
- Re: What DNS Is Not Simon Lyall (Nov 08)
- Re: What DNS Is Not Joe Abley (Nov 08)
- Re: What DNS Is Not Paul Vixie (Nov 09)
- Re: What DNS Is Not Bill Stewart (Nov 09)