Report: Cuba using undersea fiber-optic cable

Published on NewsOK Modified: January 21, 2013 at 1:15 pm •  Published: January 21, 2013
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HAVANA (AP) — Cuba apparently has finally switched on the first undersea fiber-optic cable linking it to the outside world nearly two years after its arrival, according to analysis by a company that monitors global Internet use.

In a report posted Sunday on the website of Renesys, author Doug Madory wrote that Cuba began using the ALBA-1 cable on Jan. 14.

Until now the island's Internet service has been through satellite links that are slower than hard-wired fiber-optic connections. Starting a week ago, Madory said, routing data showed significantly faster traffic to the country and the emergence of Spanish telecom Telefonica as a provider of routing service to Cuban state-run communications company ETECSA.

Routing speed is measured by how long it takes to send a data packet somewhere and receive confirmation back at the original server, akin to how submarines "ping" each other with radar to determine location.

Madory wrote that the sudden improvement in latency measurements between Cuba and four cities in the U.S., Mexico and Brazil indicates the cable is in use. But speeds have not reached levels suggesting that the cable is handling all traffic, leading him to conclude that outgoing data is still traveling via satellite.

"We believe it is likely that Telefonica's service to ETECSA is, either by design or misconfiguration, using its new cable asymmetrically (i.e., for traffic in only one direction)," Madory wrote.

Cuban government officials and Telefonica did not immediately respond to requests for comment Monday. Cuba has said in the past that it would prioritize the cable for usage deemed in the public interest and for social good.



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