The value of tmnxOspfAreaSummary specifies how the Inter-Area
LSAs are imported into stub areas. It has no effect on other areas.
If it is 'noAreaSummary (1)', the router will neither originate
nor propagate Inter-Area LSAs into the stub area. It will rely
entirely on its default route.
If it is 'sendAreaSummary (2)', the router will both summarize
and propagate Inter-Area LSAs.