Tuesday, January 22, 2013

Renesys detects some two-way cable traffic

Click to enlarge
At exactly 14:01 UTC Tuesday (09:01 local time), Renesys saw a third mode in their latency tests. In this plot, you can see the original pure-satellite mode (A), the apparent one way satellite mode we mentioned in an earlier post (B), and a third, lower mode (C) that indicates two-way cable connectivity.

It seems there is a mix of satellite, one-way cable and bi-directional cable connectivity.
Posted by Larry Press at 12:00 PM
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7 comments:

  1. muchasgraciasJanuary 22, 2013 at 4:05 PM

    Hi again,
    There are some news saying that Telefonica from Spain is denying to be providing internet services to Cuba.

    Reference (in Spanish):
    http://www.diariodecuba.com/cuba/14989-espana-telefonica-niega-estar-relacionada-con-el-cable-submarino-cubano

    ReplyDelete
  2. Larry PressJanuary 22, 2013 at 6:14 PM

    Hi MG,

    I got a note from the AP reporter who wrote that little post this morning asking me if I could explain it in light of the Renesys data. The note said not to repeat it, so I will not, but it was just three ambiguous sentence.

    I told the AP reporter that I could not be sure what it meant to say and Doug Madory from Renesys said the same, but reiterated that the data was unequivocal about Telefonica Internet service to ETECSA.

    ReplyDelete
  3. muchasgraciasJanuary 22, 2013 at 6:34 PM

    Very interesting, thanks for the updates.
    On the original post from Renesys I found the following comment, which I think makes sense:

    "(...)Renesys did not assert Telefonica had anything to do with the ALBA-1 cable itself. Just that ETECSA is using the cable to reach Telefonica service in Venezuela, where they have a significant presence.(...)"

    One off-topic comment if you do not mind: Did you learn about the case of Twitter blocking about 900 accounts from V.I.P users of "Joven Clubs" in Cuba?

    Reference:
    http://blog.cubava.cu/2013/01/11/twitter-bloquea-cuentas-de-usuarios-cubanos-por-conmemorar-un-hecho-de-gran-significacion-historica/

    P.S: Your link to Renesys' blog on this post is not working.

    ReplyDelete
  4. Larry PressJanuary 22, 2013 at 10:25 PM

    More on the Telefonica denial:

    http://bigstory.ap.org/article/telefonica-no-involvement-cuba-cable

    ReplyDelete
  5. Larry PressJanuary 26, 2013 at 5:53 AM

    MG wrote:

    > Did you learn about the case of Twitter blocking about 900 accounts from V.I.P users of "Joven Clubs" in Cuba?

    It seems like there were 41,781 tweets with the hashtag #Caravana54 in one day from the same IP address.

    If that was the case, you can see why a person or algorithm at Twitter thought it was spam.

    I sent an email to the Twitter PR department, but got no reply.

    I would be surprised if there was any sort of political intent behind this -- Twitter seems to allow a wide range of political news and views.

    ReplyDelete
  6. muchasgraciasFebruary 7, 2013 at 8:24 AM

    Hi Larry, again about Twitter and the Young Computer Club, it seems to me the political intent is clear now.

    In this post (http://blog.cubava.cu/2013/02/04/twitter-mantiene-suspendidas-mas-de-mil-cuentas-de-joven-club-y-no-les-permite-crear-nuevas) someone states that even creating new accounts with email addresses based on @jovenclub.cu is now forbidden by Twitter.

    I am not a big fan of "Cuban government evangelists", but I also think they should be allowed to express their opinion.

    ReplyDelete
  7. Larry PressFebruary 7, 2013 at 2:30 PM

    > I also think they should be allowed to express their opinion.


    I agree 100%

    ReplyDelete

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