Chapter 6 - IP Routing Essentials Flashcards
administrative distance
A rating of trustworthiness for a route. Generally it is associated with the routing process that installs the route into the RIB.
directly attached static route
A static route that defines only the outbound interface for the next-hop device.
distance vector routing protocol
A routing protocol that selects the best path based on next hop and hop count.
enhanced distance vector routing protocol
A routing protocol that selects the best path based on next hop, hop count, and other metrics, such as bandwidth and delay.
equal-cost multipathing
The installation of multiple best paths from the same routing protocol with the same metric that allows for load-balancing of traffic across the paths.
floating static route
A static route with an elevated AD so that it is used only as a backup in the event that a routing protocol fails or a lower-AD static route is removed from the RIB.
fully specified static route
A static route that specifies the next-hop IP address and the outbound interface.
link-state routing protocol
A routing protocol that contains a complete view of the topology, where every router can calculate the best path based on its copy of the topology.
path vector routing protocol
A routing protocol that selects the best path based on path attributes.
prefix length
The number of leading binary bits in the subnet mask that are in the on position.
recursive static route
A static route that specifies the next-hop IP address and requires the router to recursively locate the outbound interface for the next-hop device.
static null route
A static route that specifies the virtual null interface as the next hop as a method of isolating traffic or preventing routing loops.
unequal-cost load balancing
The installation of multiple paths that include backup paths from the same routing protocol. Load balancing across the interface uses a traffic load in a ratio to the interface’s route metrics.
