Section 8: Routing Fundamentals Flashcards
What is a Router?
Used to forward traffic between subnets, between an internal and external network, or between two external networks
What are Routing Tables?
A table kept by the router to help determine which route entry is the best fit for the network
What are Static Routes?
Manually configured by an admin
What is Dynamic Routing?
More than one route can exist for a network
What is a Router Advertisement Method?
Characteristic of a routing protocol
What are Interior Gateway Protocols (IGP)?
Operate within an autonomous system
What is an Exterior Gateway Protocol (EGP)?
Operated between autonomous systems
What is a Distance Vector?
Sends full copy of routing table to its directly connected neighbors at regular intervals
What is a Link State?
Requires all routers to know about the paths that all other routers can reach in the network
What is a Hybrid?
Uses bandwidth and delay of both distance vector and link state protocols
What is the Routing Information Protocol (RIP)?
A distance vector protocol that uses hop count (max hops of 15; 16 is infinite)
Interior
What is the Open Shortest Path First (OSPF)?
A link state protocol that uses cost
Interior
What is the Enhanced Interior Gateway Routing Protocol (EIGRP)?
An advanced distance vector protocol using bandwidth and delay making it a hybrid of distance vector and link state
Interior
What is the Border Gateway Protocol (BGP)?
A path vector protocol using the number of autonomous system hops instead of router hops
Exterior
What is Administrative Distance (AD)?
A number of an arbitrary unit assigned to dynamic routes and static routes. Low AD is more preferred than high AD.
