How has the Facebook outage (October 2021) happened? Could it have been prevented?

Routers are essential devices in computer networking, responsible for directing traffic between network devices, ensuring efficient data transmission across different networks.Routers, playing a crucial role in both home and corporate networks, facilitate seamless data communication by managing and directing traffic. They come in various types, including wired and wireless, and advanced models offer features like load balancing and Quality of Service to enhance performance. Selecting the...