- The Longest Match Rule
This form of routing is known as the destination-based routing. The process of comparing the destination IP with the prefixes int the routing table is done bit by bit
if you have a tie then we go to the AD rules,
- Administrative Distance
Will always choose The LOWER the value of AD as best route
and if there is a tie again will go to the Metric Rules ,
The tie-breaker is going to be the LOWEST value of the METRIC
if ever there is still a tie the router is going to perform load balancing (traffic sharing).
Routing selection always goes through this process.