Distance vector vs. link state

- [Narrator] There are many categories…of dynamic routing protocols.…Now two of the most important that we deal with…define how these protocols go about determining…the best path to network destinations.…The first type of dynamic routing protocol…that we will discuss are distance vector types.…These types of protocols focus solely…on the direction or interface…and the distance to the destination network.…Now the router doesn't have…an overall picture of the topology,…and it really doesn't care to…with distance vector protocols.…

It learns everything from its neighbors…and sends out packets on interfaces…based on that information.…Now this is often referred to as routing by rumor,…because it relies on the network information…given to it by its neighbor.…Now protocols that are considered…to be distance vector protocols…are EIGRP…and RIP…and even BGP.…Now the flip side of that are link state protocols.…Link state protocols report the links…of all the interfaces participating…in the dynamic protocol you're using.…

Now this information is shared until each router…