Routing using BGP (Border Gateway Protocol)
https://chatgpt.com/share/d2c4d020-666a-4773-b0d0-4598f6ad73c1
https://datatracker.ietf.org/doc/html/rfc7938#section-1
- Hierarchical, Folded Clos topology
Private Use ASNsinside a data center
Modern load balancing
Instead of dedicated load balancer nodes, which are difficult to scale, use network infra to spread traffic