From the course: Cisco CCNP ENARSI v1.1 (300-410) Cert Prep: 1 Layer 3 Technologies

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Route redistribution fundamentals

Route redistribution fundamentals

From the course: Cisco CCNP ENARSI v1.1 (300-410) Cert Prep: 1 Layer 3 Technologies

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Route redistribution fundamentals

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- [Man] Until we have one routing protocol to rule them all, there's a need to have multiple routing protocols peacefully coexist on the same network. Perhaps Company A runs EIGRP, and Company B runs OSPF, and the two companies merge. Until the newly combined IT staff agrees on a standard protocol to use if they ever agree on one. The routes known to OSPF need to be advertised in the EIGRP and vice versa. This kind of scenario is possible, thanks to route redistribution. And that's the focus of this video. Other reasons that we might need to perform a route redistribution include, having different parts of your network under different administrative control. Or perhaps we want to connect out with a network of a business partner. And also when we're connecting out to the internet, we might want to advertise our IGP routes, or interior gateway protocol routes, into BGP or vice versa. Those are the types of things…

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