subsea cable
HGC Global Communications, DE-CIX & Intelsat perspectives on damaged Red Sea internet cables
Earlier this week, four underwater data cables were damaged in the Red Sea. Hong Kong telecom HGC Global Communications said about 25% of internet traffic in Asia, Europe, and the Middle East had to be rerouted.
There are more than 15 undersea internet cables in the Red Sea. To have four damaged at a single time is ”exceptionally rare,” HGC said in a separate earlier statement.
The disruption of the cables did not disconnect any country from the internet, but the Wall Street Journal reports service in India, Pakistan, and parts of East Africa was noticeably degraded.
No services have yet offered a reason for the cuts. Yemen’s telecom ministry denied speculation it was responsible for the failures, saying it was “keen to keep all telecom submarine cables…away from any possible risks.”
Underwater cables are responsible for most of the internet’s data traffic. They’re cheaper than land-based cables, but are prone to damage from ships’ anchors.
The ongoing conflict in the Middle East has experts wondering about the timing and severity of this outage, though. Iran-based Houthi has been particularly aggressive in the Red Sea, including in mid-February when a cargo ship was abandoned by its crew following an Houthi attack. The ship, which had weighed anchor, drifted for weeks before sinking.
According to U.S. officials, the anchor of the Rubymar, a UK-owned ship, likely severed three cables in the Red Sea on February 18, 2024. The Rubymar was struck by a Houthi missile on February 18, 2024, and sank after taking on water. As it was sinking, its anchor likely cut the cables that provide global telecommunications and internet data.
Houthi control of the region and the ongoing strife in Yemen makes repairing the damaged cables more complicated. One of the four companies affected said it expects to start that process early in the second quarter, though permit issues, weather, and the civil war in that country could impact that.
Statement by Dr. Thomas King, Chief Technology Officer, DE-CIX:
“As a global Internet Exchange (IX) operator, DE-CIX rents capacity on submarine cables in the Red Sea as part of its global network, which interconnects more than 50 IXs and Cloud Exchanges around the world. One of our data pathways from Asia to Europe makes use of the Asia-Africa-Europe 1 (AAE1) cable, one of three that were damaged in a recent incident. According to the information we have, the cause of the damage was the anchor of a freighter that the Houthi rebels had attacked. At some point, the crew abandoned the ship and dropped anchor so that the unmanned ship would not drift out of control. Unfortunately, the anchor did not hold, and the drifting wreck dragged the anchor across the seabed, rupturing the three affected lines before the ship finally sank.”
“From a telecommunications perspective, the Red Sea is a neuralgic point connecting Europe and Asia. DE-CIX has leased capacity on two separate submarine cables in the Red Sea, located several kilometers apart. We operate them in active-active mode, which means that the second cable is fully available if one should fail. The data is rerouted fully automatically, without manual intervention. As we monitor all of our systems automatically 24/7, we were alerted immediately to the failure of the connection. At the same time, the carrier that we rent our capacity from also informed us of the incident.”
“Given that we always work with redundant connections, the impact of the incident is not critical for DE-CIX customers. We share our capacities across multiple submarine cable routes worldwide and check the exact routes, including GPS coordinates, to ensure that these routes do not overlap at any point. We plan in such a way that we can fully compensate for the failure of at least one submarine cable, and we can always use different data pathways. We generally expect damage to submarine cables to take two to three months to repair because special ships are needed for this. In the meantime, we are also working to establish alternative redundancy channels.”
“In terms of the impact on Internet users in Europe and Asia, if Internet service providers and carriers have built their networks redundantly and therefore resiliently, Internet users should not experience any disruption. If Internet service providers choose a different risk scenario for cost reasons, for example, then even the failure of a single cable can lead to disruption for users/customers. Such a disruption is noticeable in the latency, i.e. the time it takes for the data to reach its destination. This could, for example, lead to the participants in a video conference interrupting each other because it takes too long for the spoken word to reach the other person.”
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Rhys Morgan, general manager and VP, media and networks, EMEA at Intelsat is seeing demand for satellite capacity as well.
“We’ve had reports from customers that they’re seeing a slowdown in some of their Internet connectivity,” he tells Capacity Media.
Morgan notes that disruption to data traffic passing through the Red Sea has been a concern for sometime due to the Houthi militants potential to target the infrastructure.
“It’s something we’ve been keeping an eye on more broadly over a long period of time,” he says. “We’ve been working with large customers to make sure that they’ve got a hybrid approach to networking.”
Morgan is keen to emphasise that a hybrid approach to networking is crucial in times of disruption, as seen this week.
Intelsat have implemented short-term services for customers that have suffered disruption in light of the cuts.
“As part of a hybrid network approach, customers will look for mission critical or highly sensitive communications to be passed through different means,” he explains. “Fibre may be their primary method, but satellite connectivity could be on standby as a backup”.
Satellite connectivity in its current form is not well enough equipped to completely replace the vast quantities of data that travel through subsea cables every day. But for certain types of data, the technology can offer a suitable alternative.
References:
https://fortune.com/2024/03/04/internet-cables-cut-red-sea/
https://www.networkcomputing.com/author/dr-thomas-king-cto-de-cix
Geopolitical tensions arise in Asia over subsea fiber optic cable projects; U.S. intervened to flip SeaMeWe-6 contractor
Multimillion-dollar undersea/subsea fiber optic cable projects have become the latest focal point of geopolitical tensions in Asia as China intensifies its highly contested claims over the South China Sea, writes Nikkei Asia’s Singapore correspondent Tsubasa Suruga. These cables are crucial for keeping information flowing throughout the region and across the Pacific. Most countries require builders to get approval if they plan to lay cables in their territorial waters, but not in their exclusive economic zones, which extend 200 nautical miles out from a country’s coast.
China, however, insists that projects within its self-proclaimed “nine-dash line” — an area encompassing virtually the entire South China Sea — need Beijing’s approval. A nonobjection letter must be obtained from China’s People’s Liberation Army before the formal application process can even begin. Beijing imposes the policy even though an international tribunal found in 2016 that the nine-dash line lacked a legal basis.
“It is no secret the whole industry is more confronted by politics,” said Takahisa Ohta, senior director of the submarine network division at NEC, one of the world’s top three suppliers of subsea cables. Some of the companies involved, like Singtel, are looking for ways to diversify their routes.
Tay Yang Hwee, a 30-year industry veteran who heads subsea cable development at the Singaporean telecom provider, said it is “exploring alternate paths” for connecting data hubs, but he admits it is “very difficult” to avoid the South China Sea as a whole.
The Singapore-to-France cable would have been HMN Tech’s biggest such project to date, cementing it as the world’s fastest-rising subsea cable builder, and extending the global reach of the three Chinese telecom firms that had intended to invest in it.
But the U.S. government, concerned about the potential for Chinese spying on these sensitive communications cables, ran a successful campaign to flip the contract to SubCom through incentives and pressure on consortium members. It’s one of at least six private undersea cable deals in the Asia-Pacific region over the past four years where the U.S. government either intervened to keep HMN Tech from winning that business, or forced the rerouting or abandonment of cables that would have directly linked U.S. and Chinese territories.
SubCom had no comment on the SeaMeWe-6 battle, and HMN Tech did not respond to requests for comment. In a statement last year about infrastructure projects, the White House briefly noted that the U.S. government helped SubCom to win the Singapore-to-France cable contract, without giving details. China’s foreign ministry did not respond to requests for comment. China Telecom, China Mobile, China Unicom and Orange did not respond to requests for comment. Microsoft declined to comment.
Undersea cables are central to U.S.-China technology competition. Across the globe, there are more than 400 cables running along the seafloor, carrying over 95% of all international internet traffic, according to TeleGeography, a Washington-based telecommunications research firm. These data conduits, which transmit everything from emails and banking transactions to military secrets, are vulnerable to sabotage attacks and espionage, a U.S. government official and two security analysts told Reuters.
The potential for undersea cables to be drawn into a conflict between China and self-ruled Taiwan was thrown into sharp relief last month. Two communications cables were cut that connected Taiwan with its Matsu islands, which sit close to the Chinese coast. The islands’ 14,000 residents were disconnected from the internet.
Taiwanese authorities said they suspected a Chinese fishing vessel and a Chinese freighter caused the disruption. However, they stopped short of calling it a deliberate act and said there was no direct evidence showing the Chinese ships were to blame. China, which considers Taiwan a breakaway province, has ratcheted up military and political efforts to force the island to accept its dominion.
Echo and Bifrost: Facebook’s new subsea cables between Asia-Pacific and North America
Facebook has revealed plans to build two new subsea cables between the Asia-Pacific region and North America, called Echo and Bifrost. The social media giant also revealed partnerships with Google as well as Asian telecoms operators for the project.
Although these projects are still subject to regulatory approvals, when completed, these cables will deliver much-needed internet capacity, redundancy, and reliability. The transpacific cables will follow a “new diverse route crossing the Java Sea, connecting Singapore, Indonesia, and North America,” and are expected to increase overall transpacific capacity by 70%.
Facebook says Echo and Bifrost will support further growth for hundreds of millions of people and millions of businesses. Facebook said that economies flourish when there is widely accessible internet for people and businesses.
Echo and Bifrost be the first transpacific cables through a new diverse route crossing the Java Sea. Connecting Singapore, Indonesia, and North America, these cable investments reflect Facebook’s commitment to openness and our innovative partnership model. The social media company works with a variety of leading Indonesian and global partners to ensure that everyone benefits from developing scale infrastructure and shared technology expertise.
Facebook will work with partners such as Indonesian companies Telin and XL Axiata and Singapore-based Keppel on these projects.
Image Credit: Facebook
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Kevin Salvadori, VP of network investments at Facebook, provided further details in an interview with Reuters. He said Echo is being built in partnership with Alphabet’s Google and XL Axiata. It should be completed by 2023. Bifrost partners include Telin, a subsidiary of Indonesia’s Telkom, and Keppel. It is due to be completed by 2024.
Aside from the Southeast Asian cables, Facebook was continuing with its broader subsea plans in Asia and globally, including with the Pacific Light Cable Network (PLCN), Salvadori said.
“We are working with partners and regulators to meet all of the concerns that people have, and we look forward to that cable being a valuable, productive transpacific cable going forward in the near future,” he said.
Indonesia
Facebook noted that Echo and Bifrost will complement the subsea cables serving Indonesia today. These investments present an opportunity to enhance connectivity in the Central and Eastern Indonesian provinces, providing greater capacity and improved reliability for Indonesia’s international data information infrastructure. Echo and Bifrost complement the subsea cables serving Indonesia today, increasing service quality and supporting the country’s connectivity demands.
This is all part of Facebook’s continued effort to collaborate with partners in Indonesia to expand access to broadband internet and lower the cost of connectivity. Facebook has partnered with Alita, an Indonesian telecom network provider, to deploy 3,000 kilometers (1,8641 miles) of metro fiber in 20 cities in Bali, Java, Kalimantan, and Sulawesi. In addition, we are improving connectivity by expanding Wi-Fi with Express Wi-Fi.
While 73% of Indonesia’s population of 270 million are online, the majority access the web through mobile data, with less than 10 percent using a broadband connection, according to a 2020 survey by the Indonesian Internet Providers Association. Swathes of the country, remain without any internet access.
Singapore
In Singapore, Echo and Bifrost are expected to provide extra subsea capacity to complement the APG and SJC-2 subsea cables. Building on Facebook’s previously announced Singapore data center investments, Echo and Bifrost will provide important diverse subsea capacity to power Singapore’s digital growth and connectivity hub. Singapore is also home to many of Facebook’s regional teams.
The Asia-Pacific region is very important to Facebook. In order to bring more people online to a faster internet, these new projects add to Facebook’s foundational regional investments in infrastructure and partnerships to improve connectivity to help close the digital divide and strengthen economies.
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References:
Advancing connectivity between the Asia-Pacific region and North America
https://www.reuters.com/article/us-facebook-internet-southeastasia-idUSKBN2BL0CH
New Southeast Asia-Japan 2 Cable to Link 9 Asian Countries
A consortium of Asia-Pacific network operators has contracted NEC Corp. to build a 10,500km subsea cable which will connect Singapore, Thailand, Cambodia, Vietnam, Hong Kong, Taiwan, mainland China, Korea and Japan. The Southeast Asia-Japan 2 cable (SJC2) will be built and operated by a consortium including China Mobile International, Chunghwa Telecom, Chuan Wei, Facebook, KDDI, Singtel, SK Broadband and VNPT. The eight fiber pair cable will have a total capacity of 144Tbps. Construction of the cable is expected to be completed by the fourth quarter of 2020.
“The construction of SJC2 cable is timely and will provide additional bandwidth between Southeast and North Asia, whose combined population of more than two billion are driving demand for data as their economies undergo digital transformation,” Singtel VP for carrier services Ooi Seng Keat said.
“As a new generation multimedia superhighway, the SJC2 can play a pivotal role in facilitating economic cooperation and digital innovation among the countries in this region. The construction of this cable reinforces Singtel’s position as the leading data services provider in the region and strengthens Singapore as a global business and info-communications hub,” Keat added.
China Mobile said in a statement it would be solely responsible for the landing stations in China and Hong Kong, with SJC2 complementing China’s Belt and Road Initiative, and this cable makes up one of seven investments the company has made into subsea cables.
Singtel has been investing in augmenting its international connectivity, including through the joint construction of the 9,000km INDIGO subsea cable linking Singapore with Perth and Sydney in Australia, and its involvement in the Southeast Asia-Middle East-Western Europe 5 (SEA-ME-WE 5) cable, which was completed in December 2016.
SJC2 submarine cable to connect 9 Asian countries
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In May, NEC demonstrated speeds of 50.9Tbps across subsea cables of up to 11,000km on a single optical fibre through the use of C+L-band erbium-doped optical fibre amplifiers (EDFA), amounting to speeds of 570 petabits per second-kilometre.
To hit those speeds, NEC researchers developed a multi-level, linear, and non-linear algorithm to obtain an optimisied 32 quadrature amplitude modulation (QAM) or opt32 constellation with a higher limit for non-linear capacity specifically for transmission across subsea cables.
NEC announced the completion of the 54Tbps Asia-Pacific Gateway cable in November 2016 between China, Hong Kong, Japan, South Korea, Malaysia, Taiwan, Thailand, Vietnam, and Singapore.
The cable is owned by China Telecom, China Unicom, China Mobile, NTT Communications, KT Corporation, LG Uplus, StarHub, Chunghwa Telecom, CAT, Global Transit Communications, Viettel, and VNPT.
References:
https://www.telecomasia.net/content/southeast-asia-japan-2-cable-link-9-markets
http://www.zdnet.com/article/nec-signed-to-build-southeast-asia-japan-2-cable/
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Related subsea cable construction:
Construction begins on Japan-Guam-Australia cable
https://www.telecomasia.net/content/construction-begins-japan-guam-australia-cable
