Subsea Cables & Internet Infrastructure

The second Kenyan data center (IXAfrica Nairobi) I've visited with a large Starlink presence. IXAfrica is on Nairobi's outskirts on Mombasa Road and is pretty damn difficult to find as I and the taxi driver learned to our dismay. 😃 Starlink normally requires 20 degrees of line of sight in all directions for its earth stations. A condition clearly violated here. I suspect Starlink is using free space lasers to transmit traffic to satellites high enough in the sky to reach this limited-line-of-sight facility. From my point of view all this talk about Starlink building a parallel Internet infrastructure qualifies as nonsense. It is just another niche ISP using a different and bandwidth-limited Last Mile infrastructure to reach end users. No revolution. Just hype.

This device is probably a GPON fiber splitter that takes a fiber pair and splits into many fiber pairs to serve individual homes or buildings. These devices are ubiquitous in Kenya. GPON stands for gigabit passive optical network. It is a point-to-multipoint fibre architecture that requires no power at the premise. The use of passive devices greatly simplifies the network and reduces deployment costs.

1. Hyperscalers are worried that a capacity shortage will materialize two or three years down the road due to robust traffic growth and the absence of any major subsea cable project in the pipeline. Their network investment teams are studying the issue. 2. 2Africa is bypassing the Red Sea by building Northeast African routes that will connect either Mombasa to the Sudan 2Africa CLS in the Red Sea or a route from Djibouti to the same CLS. Decision has not yet been made. 3. 2Africa from Mombasa to Marseille should be live next summer. This will bring relief to carriers and ISPs alike. 4. Africa-1 project is struggling and may be out of funds. 5. Mombasa is the subsea cable hub, but Nairobi is the data center for Kenya. 6. Excess capacity on Equiano and 2Africa exists and ISPs should stock up before the Telecom Winter arrives.