[LAC-TF] measuring ipv4 x ipv6 latencies

Antonio M. Moreiras moreiras at nic.br
Tue Apr 19 21:32:32 BRT 2011


We are taking some measurements of IPv4 and IPv6 latencies in the
Internet, against some Web sites and NTP sites.

With this, we are trying to understand the current situation. In some
isolated tests, it seems that the IPv6 latencies could be 30% to 60%
worst than the IPv4 latencies, from some brazilian networks, including
ours. However, we are not sure about it.

This test will integrate with (LACNIC's) SIMON in some near point in the
future. And probably we will discuss some results at IXPs meeting in the
next LACNIC.

We are taking these measurements from our network, at NIC.br, and from
some other brazilian sites, but we would like to have other partners in
this test, from worldwide, and specially from LAC region, what would
facilitate the comparisons.

You could see some preliminary data in this website:

http://labs.ceptro.br/simonv6 (work in progress).

Maybe you could host a measurement point for this?

The measurements are taken by a java software, that runs also an
external traceroute. It runs preferencially in a linux/ubuntu 10.10 or

Some of the participants are installing the software themselves. Others
are providing us with virtual machines. Both models are welcome.

Organizations that agree to take part in this test, should also agree in
allowing us to share the results publically. The data to be publically
released is:
- orig ipv4, dest ipv4, delay ipv4, traceroute ipv4 (IP list)
- orig ipv6, dest ipv6, delay ipv6, traceroute ipv6 (IP list)

Other information, as the AS number, location, upstreams, etc, can be
infered from these data.

If you can help us with this, please let me know in pvt and I will send
further information.

Antonio M. Moreiras
IPv6.br project coordinator
Brazilian Network Information Center - NIC.br
moreiras at nic.br
+55 11 5509-3553 -  +55 11 9466-2277
inoc-dba: 22548*amm
http://nic.br - http://ceptro.br

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