Routing Metrics and Protocols
Routing protocols can essentially be broken down into two types: link-state routing protocols and distance-vector routing protocols. Although both types of routing protocols forward packets, the way they go about it separates them into two distinct groups.
Routing protocols calculate a variety of metrics, values, and indicators to rank available paths to certain logical addresses on a LAN or WAN. Each different routing protocol has a unique algorithm that factors a different value or set of values to develop the cost of a link, with the smaller value (lowest cost) indicating the better route choice.
Regardless of the type of routing protocol in use, the metrics and their meanings are relatively constant from ...
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