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CCNA® Cisco Certified Network Associate: Study Guide, Seventh Edition by Todd Lammle

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Configuring EIGRP and OSPF Summary Routes

This section will provide you with the commands to summarize both EIGRP and OSPF. Although OSPF can be summarized a few different ways, I’ll provide the most common OSPF summary command, which summarizes multiple-area OSPF networks into area 0.

You learned in Chapter 5 how to determine summary routes for a network. This section will have you apply the summary routes to a router’s configuration.

Figure 9-10 shows a contiguous network design—yes, contiguous networks do not happen by accident; they have to be planned! Figure 9-10 shows six networks with four block sizes of 4 (WAN links) and two block sizes of 8 (LAN connections). This network design fits nicely into a block size of 32. The network address ...

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