Subsea Cables & Internet Infrastructure

The American tech giant is deploying a high capacity cable directly linking Thailand to Christmas Island, which in turn will be connected by two diverse cables to Australia. The new route is unusual as it goes around Indonesia to reach Thailand's slender West Coast leg as opposed to threading the Sundra Stait and traversing the very busy waters off Singapore and up the Bay of Thailand. I told an international development bank a few weeks ago that it would make sense to do such a landing in order to avoid the crowded and congested Thailand Bay. My idea was to link India's East Coast to Thailand via its slender Southern leg. It is always a good idea to avoid routes that are already heavily used by subsea cables to improve resiliency. In this case, it also avoids ship-infested waters that pose a high risk of subsea cable damage. This new project makes two things very clear. Google's subsea cable guys are looking to reduce their network's reliance on Singapore, which is th...

As most of you know, Google is building a subsea cable ring between Christmas Island and Australia. I speculated last week that Christmas Island might be where the planned South Africa to Australia Umoja cable would land. It turns out that the new cable, Dhivaru, will connect the new rising Middle East subsea cable hub of Oman to Christmas Island with a stop in the Maldives. The term 'dhivaru' refers to the rope used to control the sail on traditional Maldivian ships. So the Google plan is quite clear. Google is creating an Indian Ocean subsea cable ring connecting Africa to Australia via Umoja and the Middle East to Australia via Dhivaru and the Bosun cable linking Christmas Island to Darwin. I think that all these Google cables will be 16 or 24 fibre pairs pairs. Certainly not less than 16, but not exceeding 24, as traffic cannot justify it. At first glance there are losers and scorned parties. None of these cables land in India, which might reflect India's subsea cable r...

Google's Bosun cable will connect Christmas Island, located in the East Indian Ocean, to Darwin, Australia, site of a large military base with rotating contingents of Japanese and American soldiers. The project was announced near the end of 2024. At the time it struck me as a bit strange. Google's new cables across the Pacific will do a lot of island hopping. This allows the power to be boosted, the islands can serve as traffic switching centers if they are hosting multiple cables, and complete OEO regeneration can be done. Voltage drops as electricity flows through the copper or aluminum current conductor. So the advantage of powering a cable at intermediate points is clear. It enables higher end-to-end transmission throughput. A key aspect of Google's Pacific projects is better resiliency. The easiest way to do that is a put a small prefabricated modular CLS on an island and land multiple cables there. There Layer 3 switching can divert traffic in case a ca...