>"It needs to be routed: the router, based on L3 information, decides where it needs to go ,in L3 speak – it will decide which host to send it to, but not how. This corresponds to the routing table (or FIB)."
This is not correct. The FIB(forwarding information base) is concerned with layer 2. The RIB(routing information base) determines the next hop. The RIB is what is used to populate entries in the FIB with the correct outgoing interface. These two terms are basic router terms. It was kind of surprising to see this statement in a post titled "How Do Routers Work, Really?"
This is not correct. The FIB(forwarding information base) is concerned with layer 2. The RIB(routing information base) determines the next hop. The RIB is what is used to populate entries in the FIB with the correct outgoing interface. These two terms are basic router terms. It was kind of surprising to see this statement in a post titled "How Do Routers Work, Really?"