Orange Jordan Goes Black

At 10:28 UTC today, Jordanian incumbent, Orange Jordan (AS 8697), suffered a wide-spread Internet outage, lasting 2 hours and 16 minutes. Orange dropped service to 241 of the 244 networks it typically routes, temporarily erasing nearly 60% of Jordanian cyberspace.

The impact of the outage extended beyond the incumbent’s borders to Orange Jordan’s sole customer in Iraq, EarthLink (AS 50710). This provider lost service to 11 of its networks or 6% of its total, namely, those transiting Orange to reach the global Internet.


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Syria Briefly Disconnects

For about 40 minutes today, all networks routed through the Syrian incumbent, Syrian Telecommunications Establishment (AS29256 and AS29386), were withdrawn from the global routing table, effectively cutting off most of Syria from the Internet.


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Cyprus Rescues Lebanon

It has been a tough week for Internet connectivity in Lebanon. After two national Internet blackouts on the IMEWE cable, Lebanese traffic was moved onto the CADMOS submarine cable to reach international carriers via Cyprus. With this backup in place, and with substantial additional capacity brought online to reduce congestion, just over 70% of the country’s networks (prefixes) were brought back online.

In an example of engineering under pressure, Lebanese Telecoms Minister Nicholas Sehnaoui personally flew to Cyprus and met with the Cyprus Telecommunications Authority. The teams (pictured right) then collaborated to find a viable solution.



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Lebanon Loses Lone Link

Prior to the recent activation of Internet service to Lebanon via the IMEWE submarine cable, Internet service in Lebanon was labeled the “world’s slowest” due to its dependence on a combination of antiquated submarine cables built in the mid-1990′s and high-latency satellite service. However, as high-speed Internet service via IMEWE expanded in recent months, today’s outage reveals Lebanon’s new dependence on this lone modern connection to the outside world.

For almost three hours today, Lebanon experienced a near complete nationwide Internet outage. Between 16:13 and 18:59 UTC, we observed as many as 842 of the approximately 900 routed prefixes in Lebanon withdrawn from the global routing table, as illustrated in the graphic on the right. During this period of time, we saw almost every routed prefix downstream of incumbent Liban (AS42020) withdrawn. At 17:45 UTC, we saw these networks restored only to be withdrawn once again minutes later.


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SMW4 Cut Shakes Up South Asia

Bangladesh could learn a lesson from Pakistan about building a diverse and more survivable connection to the Internet. The two countries had very different experiences as a result of a recent submarine cable cut. Where Pakistan’s PTCL and Transworld have spent years building diversity into their International connectivity strategy, in Bangladesh the story is very different.

At 08:41:51 UTC on Wednesday, 6 June 2012, the Sea-Me-We-4 submarine cable suffered a break 60 kilometers from the coast of Singapore, its eastern terminus. While the cause of the failure has not been publicly released, the resulting impact on South Asian Internet transit has been fascinating to follow.


In the past week, it has been widely reported in the news that this incident has served to cripple the Internet for the 158 million people in Bangladesh. However as seen in our Market Intelligence product and our various data sources, the impact of this outage has been much more widespread than publicly reported, as providers in the region scramble to find alternatives. We’ll consider some of the resulting changes in this blog.

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The Pirate Bay Still Afloat

The_Pirate_Bay_logo.png The popular torrent site The Pirate Bay (TPB) suffered a widespread outage today as reported by several media outlets: BBC, TorrentFreak, PC Magazine, ZDNet, The Huffington Post and many others.

To understand why The Pirate Bay disappeared, we’ll look at them from a routing perspective, noting that without widely accepted routes to their IP space, they will lack global connectivity. TPB operates an autonomous system, AS 51040, which has two Internet service providers, namely, ROBTEX (AS 48285) and Serious Tubes Networks (AS 50066). TPB also has several peers, the most prominent of which is Hurricane Electric (AS 6939). To provide their services, The Pirate Bay originates two IP networks or prefixes: (Pirate Networks) and (The Pirate Bay). The prefix appears to be TPB’s core network, while appears to host TPB’s main domains, such as,, etc.

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TEAMS Cable Down Again

Only 35 days after a repair ship fixed the TEAMS (The East African Marine System) submarine cable, this cable was cut again this morning, wiping out a large chunk of international Internet connectivity in East Africa. At 9:04 UTC on 26 April 2012, we observed significant outage spikes in Kenya, Uganda, Tanzania and Rwanda. Nearly half of all routed networks in Kenya and Uganda are unavailable at the time of this writing.


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Return of SMW3

The new EPEG terrestrial cable through Russia and Iran cannot come fast enough for Oman. Last month, three major submarine cables were severed by a ship’s anchor in the shallow waters of the Red Sea, including SEA-ME-WE 3 (SMW3). epeg.jpg

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Cogent Depeers China Telecom

On March 5th, 2012 at 14:00 UTC (10:00 PM China Standard Time), Renesys observed that Cogent (AS174) and China Telecom (AS4134) appear to have dropped their mutual connectivity. Prior to this time, China Telecom regularly announced about 3000 prefixes to Cogent. After depeering, this ASN adjacency no longer exists in the global routing table.


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East African Internet Resilience

It is a fact of life of global Internet infrastructure that wherever shipping routes and cable routes overlap, submarine cable breaks are going to happen. In just the past two weeks, we’ve seen four major cable breaks: three at the same time in the Red Sea on Feb 17th, and a fourth right offshore near Mombasa, Kenya on Feb 25th.

East Africa has been hit hard by these breaks, but in fact, it’s easy to lose sight of how far Internet connectivity in this region has come in a few short years. It’s stunning to see how much of the Internet infrastructure in Kenya and Uganda is actually still up and running, although congested. East African ISPs have learned a tremendous amount in a short time about designing their networks for resilience and diversity, and that’s evident in the data pertaining to these cable breaks.

The graphic on the right illustrates the impact of the most recent TEAMS cable cut. Our data peg the time of the cut at 09:13 UTC on February 25, 2012, as providers throughout the region see sudden, massive shifts in their international Internet connectivity. Kenya normally has about 550 routed networks, and by this measure, over 60% of the country’s Internet became unreachable at this point. Uganda normally has about 180 routed networks, and experienced a similar degree of impairment. Rwanda and Tanzania do not appear to have been affected by this cable cut, which is not surprising, since TEAMS is a point-to-point cable connecting Kenya to the United Arab Emirates (see Telegeography’s online Submarine Cable Map).


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