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ccna certification nz.Bandwidth: The data carrying capacity of the link.Load: The traffic utilization of the link.Delay: The time it takes for a packet to reach its destination from the source.Reliability: The probability of a link failure estimated by the interface error count or the number of past link failures.Overhead: The cost on the link, the overhead value in OSPF is calculated based on the interface bandwidth.4.2.3 Routing TableA routing table is a data file stored in RAM that stores information related to directly connected networks as well as remote networks. The routing table contains information about the association of the network with the next hop. This association information informs routers that to best reach a destination, packets can be sent to a specific router (i.e., the next hop on the way to the final destination). The next hop can also be associated with the sending interface to the final destination. Routers typically use recursive queries in the process of finding routing tables. Routers typically construct routing tables in the following 3 ways.1 Directly connected networks: that is, networks that are directly connected to an interface of the router, which, of course, has to be active and the routerautomatically adds the networks directly connected to itself to the routing table. 2 Static routes: added to the router table through manual configuration by the network administrator. 3 Dynamic routes: constructed by routing protocols (such as RIP, EIGRP, OSPF, IS.IS, and BGP) through automatic learning toThe routing table is constructed by routing protocols (such as RIP, EIGRP, OSPF, IS.