Subject: Re: Dynamic DNS and TTL value 0

From: "D. J. Bernstein" <[email-masked]>
Date: 3 Dec 1999 21:57:26 -0000

Harald Tveit Alvestrand writes:
  [ as a question ]
> if all TTLs were 0, the traffic on the Internet

The answer is ``would increase slightly.'' An average HTTP connection
transmits thousands of bytes of data. Resolving the server's A record
all the way from the roots typically takes a few hundred bytes of data.

But this isn't the right question, because DNS doesn't distribute its
load in a scalable fashion. The root servers, and servers like Granite
Canyon, would choke if they didn't use high TTLs.

---Dan