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Routing first-step by Bill Parkhurst

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Glossary

access layer

The routing layer containing the access routers.

access router

A router that is directly connected to the switches used for final delivery of packets.

Address Resolution Protocol (ARP)

Used to determine the Ethernet address associated with a specific IP address on a LAN.

administrative or admin distance

A number assigned to every IP routing protocol used to determine the best route to a destination when the route is learned from more than one routing protocol. The route with the lowest administrative distance is considered to be the best route.

aggregation

Grouping multiple destinations into one address. Also referred to as information hiding or summarization.

area border router (ABR)

In OSPF, a router that has at least one interface ...

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