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Cisco CCNA Routing and Switching ICND2 200-101 Official Cert Guide by Wendell Odom

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Configuring Point-to-Point Subinterfaces

The second sample network, based on the environment shown in Figure 14-5, uses point-to-point subinterfaces. Point-to-point subinterfaces work well when the subnetting design calls for one subnet for each PVC. Examples 14-8 through 14-11 show the configuration for this sample network, with all four routers using only point-to-point subinterfaces. Pay close attention to the command prompts in Example 14-8, because they change when you configure subinterfaces.

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Figure 14-5 Partial Mesh with Subnets and Local DLCIs

Example 14-8 Atlanta Configuration

Atlanta(config)# interface ...

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