How do internet service provider technologies differ from enterprise and datacenter?

Question

Computer networks

Let's say PPPoE is probably needed only in the ISP, but in the enterprise it is not needed at all.
What if there are more examples? What specific technologies are there in ISP, datacenter, enterprise?

Answer 1

In DC vxlan evpn, in isp vpls l3vpn pim voip. Plus, in normal DCs of Kloz's network - horizontal scaling, and in normal isp, usually access distribution core
PS technologies are not mutually exclusive, one can be used both in DCs and with operators.