Dell Force10 C150 Configuration Manual page 695

Figure 32-2. OSPF Routing Examples
Router E
Interior Router
Not So Stubby Area
Area 100
Router B
Backbone Router
Router A
OSPF AS 9999
OSPF AS 8888
Backbone Router (BR)
A Backbone Router (BR) is part of the OSPF Backbone, Area 0. This includes all Area Border Routers
(ABRs). It can also include any routers that connect only to the Backbone and another ABR, but are only
part of Area 0, such as Router I in
Router F
Router D
Router C
Backbone Area
Router 82
Interior Router
Figure 32-2 above.
Router M
Interior Router
Router K
Stub Area
Area 200
Area 0
Router H
Area Border Router
Router I
Interior Router
Interior Router
Router J
Area 300
Router K
Autonomous System
Boundary Router
Router 8000
Router 81
Open Shortest Path First (OSPFv2 and OSPFv3) | 695
Router L
Router G
Autonomous System
Boundary Router