How The Gambia lost access to the Internet for more than 8 hours

This post analyzes the January 4, 2022, internet outage in The Gambia, detailing its cause as a failure in the ACE submarine cable and a subsequent issue with terrestrial backup links via Senegal's Sonatel. It uses BGP data to illustrate The Gambia's reliance on a single network path for international connectivity and highlights the critical nature of submarine cable systems and terrestrial interconnections for national internet access. The post also references The Gambia's regulatory authority's plans to explore securing a second fiber cable backup.