IEPG agenda

[Kazunori Fujiwara]

I'm Kazunori Fujiwara, JPRS.

I would like to make a presentation,
"DNS traffic analysis -- Issues of IPv6 and CDN", 20 minutes
if attendees have an interest.

I analyzed full-resolver queries captured at an university and
reported it at "The 12th IEEE/IPSJ International Symposium on
Applications and the Internet".

It describes percentage of AAAA queries/answers, cache hit rate,
effect to authoritative DNS servers (root, TLDs, all) and latency to
clients in the cases of some patterns (answer types, with/without
cname, use-of-out-of-bailiwick DNS server name, ttl differences,
access frequencies).

Abstract is:

The Domain Name System (DNS) is a key naming system used in the
Internet.  Recently, the deployment of IPv6 and the DNS pre-fetch
function in web browsers has significantly changed DNS
usage. Furthermore, content delivery networks (CDNs) use complicated
DNS configurations together with small TTL values to control their
traffic. These three factors significantly increase DNS traffic.
Thus, the importance of DNS traffic analysis has been increasing to
properly maintain DNS operations.  This paper presents an analysis of
DNS full-resolver traffic at the University of Tsukuba in Japan.  What
we found are
1) The deployment of IPv6 has increased queries from clients as much as 41%,
2) The deployment of CDNs increases the use of small TTL values,
   the use of CNAME resource records and the use of out-of-bailiwick DNS server names.
Since these increases are making the DNS cache hit rate low and the
DNS response slow without recognition by Internet users, this paper
seeks to warn application designers of potential system design risks
in current Internet applications.

--
Kazunori Fujiwara, JPRS

> From: Lindqvist Kurt Erik <kurtis at kurtis.pp.se>
> 
> The agenda for the IEPG so far is 
> 
> 1. Discovering Path MTU black holes using RIPE Atlas, Benno Overeinder - 15min 
> 2. To be reveled, Randy Bush 
> 
> I think there is plenty of space in the agenda so if you wish to present let me know. Randy had volunteered to moderate this time. Meeting is at 10.00 in Regency A. 
> 
> So, if you have any additional presentations let me know, and a bi thanks to Randy for moderating this meeting!
> 
> Best regards,
> 
> - kurtis -
> 
> 
> 
> 
> _______________________________________________
> Iepg mailing list
> Iepg at lists.isc.org
> https://lists.isc.org/mailman/listinfo/iepg
>