We need to build a routing table, based on routes from neighbors..
Route A receives three routes from different Routing Process:
EIGRP - 192.168.100.0/26 OSPF - 192.168.100.0/19 RIP - 192.168.100.0/24
We have multiple paths to the same destination, How will we decide which will be installed on routing table?
Consider three elements:
Administrative Distance, Metrics and Prefix Lenght
Question 1: Sorted by priority, which element will use first?
winner based on Administrative Distance, but I've multiple paths, I can't discart them, so these routes shows different prefix lenght.
Question 2: Are they considered different destinations, therefore will all be installed?
Question 3: Who are the Tie-Break? I mean, if I have two paths to the same destination, same AD value I'll consider Metric value and if they have equal values the load balancing is actived?
Question 4: Prefix Lenght is used only for Forwarding Decision?