nanog mailing list archives
Re: Crazy flying netbios packets
From: Karl Denninger <karl () mcs net>
Date: Thu, 3 Sep 1998 12:17:01 -0500
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
Current thread:
- Crazy flying netbios packets Pete Ashdown (Sep 02)
- Re: Crazy flying netbios packets Leigh Porter (Sep 03)
- Re: Crazy flying netbios packets Eric Germann (Sep 03)
- Re: Crazy flying netbios packets blast (Sep 03)
- Re: Crazy flying netbios packets Samuel Gunnestad (Sep 11)
- Re: Crazy flying netbios packets blast (Sep 03)
- <Possible follow-ups>
- Re: Crazy flying netbios packets jprovo (Sep 03)
- Re: Crazy flying netbios packets Paul Thornton (Sep 03)
- Re: Crazy flying netbios packets Karl Denninger (Sep 03)
- Re: Crazy flying netbios packets Dean Anderson (Sep 03)
- Re: Crazy flying netbios packets Stephen Stuart (Sep 03)