What Is Routing Metric?

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Do you know that "routing metric" you always hear about? Well, it's not a metric. It's only a unit calculated using a routing set of rules for deciding on or rejecting a routing route for shifting records/traffic. A routing metric is a unit calculated using a routing set of rules for putting or leaving a routing route for transferring records/traffic. It is used to discover the shortest manner among nodes in a community. This allows us to perceive the quality path for transporting records from one place to another. Routing metrics are hard and fast values routers use to decide the premiere direction for sending community traffic. Routing metrics are assigned to every machine to be had within the routing desk and are calculated using many different strategies and techniques primarily based totally on the routing algorithms in use. Some of the parameters used for calculating a routing metric are Hop count: The number of hops that must be traversed before reaching its destination. This counts only for direct links and does not include links that go through other routers before reaching their destination; Delay: The amount of time required for a packet to travel from source to destination; Bandwidth: The amount of data that can be transmitted over a given link during one unit of time; Cost: A value representing how much it would cost to send packets over this link. Routing metrics are like the cost of a path, and they vary depending on which route you're taking. For example, if you're using a distance vector routing protocol, the Bellman-Ford algorithm adds up the number of hops involved in reaching your destination. It is called the cost calculation. The other parameters that makeup routing metrics are path reliability, load, speed, latency, packet loss and a few others!

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