[dns-operations] Any surveys about EDNS0 usage?

Mark Andrews marka at isc.org
Tue Mar 8 11:16:20 UTC 2011

In message <EAF3F792-A208-4212-AF0A-DE1E100FFBF6 at rfc1035.com>, Jim Reid writes:
> > Is there some application that requires access to large RRsets  
> > (besides DNSSEC)?
> Yes. Everything doing lookups in .tel. For example try getting the  
> naptr records for telnic.tel. Responses of 1500 bytes or more are not  
> uncommon.
> There is also a depressing tendency for bloat. New applications and  
> services generally want to store and retrieve more data than existing  
> ones. So imagine if CERT records take off. Or what DNS data could be  
> associated with an RFID tag or smart card.

And those applications can enable EDNS0 on a per application basis.

Mark Andrews, ISC
1 Seymour St., Dundas Valley, NSW 2117, Australia
PHONE: +61 2 9871 4742                 INTERNET: marka at isc.org

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