Interior vs. exterior routing protocols

- [Instructor] So we learned about distance vector…and link state.…Another two categories of dynamic routing protocols…you should pay attention to are interior versus…exterior protocols.…Now, they are not related, they're completely…different categories versus dynamic and link state.…So this is yet another way to classify those…dynamic routing protocols we're learning about.…First off, we have interior protocols.…They are meant to run on a router within your…company's sphere of control…or within your autonomous system.…

Examples of these types of protocols include OSPF,…EIGRP,…and RIP.…Now these protocols do not scale large enough…to levels that would be exterior-type protocols.…I want you to think company-wide…when you think interior protocols.…Exterior protocols are meant to be run between…these autonomous systems that we talked about.…So, interior protocols run within autonomous system.…Exterior protocols run between those autonomous systems.…

The best example of this type of protocol is BGP.…I would like you to think of the internet…