Term
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Definition
| A rating of trustworthiness for a route. Generally it is associated with the routing process that installs the route into the RIB. |
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Term
| directly attached static route |
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Definition
| A static route that defines only the outbound interface for the next-hop device. |
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Term
| distance vector routing protocol |
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Definition
| A routing protocol that selects the best path based on next hop and hop count. |
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Term
| enhanced distance vector routing protocol |
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Definition
| A routing protocol that selects the best path based on next hop, hop count, and other metrics, such as bandwidth and delay. |
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Term
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Definition
| 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. |
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Term
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Definition
| 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. |
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Term
| fully specified static route |
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Definition
| A static route that specifies the next-hop IP address and the outbound interface. |
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Term
| link-state routing protocol |
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Definition
| 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. |
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Term
| path vector routing protocol |
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Definition
| A routing protocol that selects the best path based on path attributes. |
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Term
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Definition
| The number of leading binary bits in the subnet mask that are in the on position. |
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Term
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Definition
| 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. |
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Term
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Definition
| A static route that specifies the virtual null interface as the next hop as a method of isolating traffic or preventing routing loops. |
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Term
| unequal-cost load balancing |
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Definition
| The installation of multiple paths that include backup paths from the same routing protocol. Performing this across the interface uses a traffic load in a ratio to the interface’s route metrics. |
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