hub-and-spoke

English Wikipedia has an article on:

Spoke–hub distribution paradigm

Wikipedia

hub-and-spoke (not comparable)

1. (transport, networking) Being or relating to a topology, whether for the physical distribution of goods or for telecommunications, that has a central "hub" connecting a number of outlying "spokes".
   • 2020 June 23, John Bolton, The Room Where It Happened: A White House Memoir, New York, N.Y.: Simon & Schuster, →ISBN, page 357:

     We had no NATO counterpart in the Pacific, only a series of "hub and spoke" bilateral alliances, so we always worked for greater South Korean-Japanese cooperation […]

• hubbing

• point-to-point