Which of the following is true about routers internal to a totally NSSA area?（）
多选题
2022-07-11 08:54
A、Routers cannot redistribute external routes into the area.
B、Routers should have zero Type 3 LSAs in their LSDBs.
C、Routers should have zero Type 5 LSAs in their LSDBs.
D、Routers should learn default routes from the ABRs attached to the area.
