OSPF Single-Area Configuration
Single-Area OSPF
Benefits
Figure 17-10 shows a sample network that will be used for OSPF configuration. All links sit in area 0. It has four routers, each connected to one or two LANs. However, note that routers R3 and R4, at the top of the figure, connect to the same two VLANs/subnets, so they will form neighbor relationships with each other over each of those VLANs as well.
Figure 17-10 Sample Network for OSPF Single-Area ...
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