Re: Analysis about latency in Reunion Island

From: Rehan Noordally <rehan.noordally_at_univ-reunion.fr>
Date: Sat, 14 Oct 2017 16:10:35 +0400


Hi,

Thank you for the comment. The delay are dependant of the ISP. The 180 ms
have been measured from Reunion Island 's University.

Our Work are the first published study about route and delay from Reunion
Island.

We have wrote that Réunion Island Internet Access are slave of France
because Despite the choice of the destination our data pass through France.

We have also make a similar study in Mauritius, Madagascar, Seychelles and
Mayotte. The paper called "Where is my next hop ?". You can find it on
ArXiv or Researchgate.

Once again thanks for your comment. Don't hesitate to send me an email if
you want more information about my Work.

Sincerely,
Envoyé depuis un mobile.
Désolé pour l'orthographe.


Le 14 oct. 2017 15:10, "S Moonesamy" <sm+mu_at_elandsys.com> a écrit :

Hi Rehan,

I enjoyed reading your analysis about latency in Reunion Island. The
Abstract mentions that: "Typically, the minimal delay between France and
Reunion Island is around
180 ms". I did a quick test and got the following results:

  PING lb01-1.nic.fr (192.134.5.24): 56 data bytes
  64 bytes from 192.134.5.24: icmp_seq=0 ttl=51 time=209.301 ms
  64 bytes from 192.134.5.24: icmp_seq=1 ttl=51 time=206.201 ms
  64 bytes from 192.134.5.24: icmp_seq=2 ttl=51 time=205.925 ms
  64 bytes from 192.134.5.24: icmp_seq=3 ttl=51 time=206.022 ms
  64 bytes from 192.134.5.24: icmp_seq=4 ttl=51 time=206.352 ms
  --- lb01-1.nic.fr ping statistics ---
  5 packets transmitted, 5 packets received, 0.0% packet loss
  round-trip min/avg/max/std-dev = 205.925/206.760/209.301/1.310 ms

  PING www.ovh.fr (198.27.92.16): 56 data bytes
  64 bytes from 198.27.92.16: icmp_seq=0 ttl=54 time=238.254 ms
  64 bytes from 198.27.92.16: icmp_seq=1 ttl=54 time=237.873 ms
  64 bytes from 198.27.92.16: icmp_seq=2 ttl=54 time=238.261 ms
  64 bytes from 198.27.92.16: icmp_seq=3 ttl=54 time=237.617 ms
  64 bytes from 198.27.92.16: icmp_seq=4 ttl=54 time=238.024 ms
  --- www.ovh.fr ping statistics ---
  5 packets transmitted, 5 packets received, 0.0% packet loss
  round-trip min/avg/max/std-dev = 237.617/238.005/238.261/0.663 ms

It would be very unlikely to see a latency below 200 ms between Mauritius
and France.

Your article states that: "However, most of the residents of Reunion Island
experience a slow internet connection with frequent outages". However, it
does not provide any references for that.

I was surprised to read the following statement in the article: "Despite
the presence of two submarine cables to access the Internet, Reunion Island
is a slave of France". Isn't most of the content from France?

Regards,
S. Moonesamy
Received on Sat Oct 14 2017 - 12:10:53 PST

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