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Date: Thu, 3 Sep 1998 12:17:01 -0500 From: Karl Denninger <karl@mcs.net> To: Paul Thornton <prt@linx.net> Cc: Pete Ashdown <pashdown@xmission.com>, nanog@merit.edu In-Reply-To: <Pine.GSO.3.93.980903174313.1235D-100000@london.linx.net>; from Paul Thornton on Thu, Sep 03, 1998 at 05:48:31PM +0100 On Thu, Sep 03, 1998 at 05:48:31PM +0100, Paul Thornton wrote: > On Wed, 2 Sep 1998, Pete Ashdown wrote: > > > Has anyone done any estimates on how much net-wide traffic is useless > > netbios udp? Are there any suggestions for cutting large chunks of this > > out of my network without punishing SAMBA and other users who need it? > > On the subject of Windows generated useless traffic, I have been woking with > RIPE to look at how many queries to k.root-servers.net are for dud TLDs - > the majority of which are caused by Windows using the DNS to look up the > local NT domain name - requests of the form "FOO." > > The results are somewhat scary - it seems that around 20% of all queries > are generated by this behaviour. I can't give you any more info at present, > as we are still working on the data - it is literally something I am in the > middle of doing at the moment, but wanted to give a quick heads up to folks > in the light of this thread. Which, for a true root server with a working set of a couple of hundred kilobytes of data (and a couple of megabytes including buffer space, bss, and text) is absolutely irrelavent. Now if you want to talk about *misconfigured* servers which happen to have 2M+ entries on them because they are *also* serving TLDs, well, perhaps there the processing time and requirements *are* relavent. -- -- Karl Denninger (karl@MCS.Net) Voice: 312-803-6271 x219
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