Hierarchical routing/Related Articles

Parent topics

Internet Protocol [r]: Highly resilient protocol for messages sent across the internet, first by being broken into smaller packets (each with the endpoint address attached), then moving among many mid-points by unpredictable routes, and finally being reassembled into the original message at the endpoint. IP version 4 (IPv4) is from 1980 but lacked enough addresses for the entire world and was superseded by IP version 6 (IPv6) in 1998. ^[e]
Route aggregation [r]: Add brief definition or description
Routing [r]: The process of receiving a packet on one interface of a router, validating the packet and forwarding it out the appropriate interface. ^[e]