[LAC-TF] measuring ipv4 x ipv6 latencies

[Antonio M. Moreiras]

Hi Alejandro.

I will try to follow your advice. In our case, the measurement points
are inside big networks (ISPs, universities, etc), so I think there will
be no cases of using Teredo or 6to4. But some of them can be running BGP
over tunnels with HE. I will try to consider it in the analysis.

When I have some preliminary analysis done, I will let you know. If not,
we can compare the data and analysis in LACNIC meeting.

Wouldn't it be possible also collect some data for us from BT network?

-- 
Antonio M. Moreiras
Supervisor de Projetos
Núcleo de Informação e Coordenação do Ponto BR - NIC.br
moreiras at nic.br
(11) 5509-3553 - (11) 9466-2277
inoc-dba: 22548*amm
http://nic.br - http://ceptro.br


Em 20-04-2011 01:35, Alejandro Acosta escreveu:
> Hi Antonio,
>   Nice to hear about your study.
>   I wanted to tell you that I've running a similar research and I've
> found the same behavior, IPv6 latencies are around 35% worst than
> IPv4.
>   I got an advice for you, please if possible try to split the results
> between IPv6 native connections and IPv6 using transition methods
> (like 6to4 & Teredo), I also do have the data but I haven't done the
> maths! (sorry). I will be showing my results on Lacnic XV.
> 
> Thanks in advance.
> 
> Alejandro,
> 
> 2011/4/19 Antonio M. Moreiras <moreiras at nic.br>:
>> Hello.
>>
>> 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
>> 10.04.
>>
>> 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.
>>
>> Regards!
>> --
>> 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
>>