Troubleshooting Routing Loops Caused by Redistribution
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Examine Figure 17-6. The 10.1.1.0/24 network is redistributed into the EIGRP autonomous system, and then it is redistributed into the OSPF domain on R1 and R2. This does not appear to be an issue; however, it is because of AD. Let’s explore what happens.

Figure shows the topology of routing loop network.

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