ABRs advertise link status information about connected non-backbone areas to the backbone area. The backbone area then advertises the routing information to other non-backbone areas. Link status information about the backbone area cannot be advertised to non-backbone areas.

Question

Quizplus · Accepted Answer

Link status information about the backbone area can be advertised to non-backbone areas through the ABRs, which summarize and distribute the routing information between areas in OSPF.

ABRs Advertise Link Status Information About Connected Non-Backbone Areas to the Backbone