Hello @knaik99,
In the context of routing, "Loading" refers to the current level of network traffic load or congestion on the route to the destination. It is usually represented as a value between 0 and 255, with 255 indicating the highest level of loading or congestion. A lower value suggests a less congested route. This information is used by routing protocols to make better decisions about path selection, preferring less congested routes when possible. The term "loading" is commonly found in routing protocols like EIGRP and is part of the metric calculation, but it doesn't refer exclusively to EIGRP. In the output you provided, "loading 3/255" indicates the current loading level, where 3 is the numerator (current loading) and 255 is the denominator (maximum loading). A lower loading value generally suggests a less congested route.
The "Route tag" is a value used to identify a specific route or set of routes within a routing table. Route tags are often used for administrative purposes, to mark routes with specific attributes or to filter routes when redistributing them between different routing protocols. In the given output, the route is tagged with the value "65207," which could have some administrative significance within the network.
The "Reliability" value indicates the stability and reliability of a route. It is often represented as a fraction, where the numerator represents the current reliability, and the denominator represents the best possible reliability (both values ranging from 0 to 255). In this example, the reliability is shown as "255/255," which means the route is considered completely reliable.
In this given context, "TAG" stands for "Type Attribute Group." The presence of "Tag 65207, type external" in the routing entry indicates that the route is an external route. In the context of EIGRP, external routes are learned from another AS and are redistributed into the local AS.
Best regards
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