Unit 1: Network Infrastructure
This will allow you to demonstrate your networking skills, knowledge, and abilities, with a focus on enterprise-level switching, routing, and multicast components that support cross-platform (inter)operability and integration with the most recent software-defined technologies.
Equal-cost load balancing across four links is supported by EIGRP with its default configuration. In order for a router to be able to choose to load balance across equal-cost links, it is necessary for different paths to have the same metric in order to reach the destination.
Examine the following example to gain a better understanding of the equal-cost load balancing concept.
EIGRP is being used by all three routers. The range 90.0.1.0/24 is linked to routers R2 and R3. Both routers let R1 know how to get to that subnet. The two routing updates for the subnet 90.0.1.0/24 are sent to router R1 with the same metric. This is because both routers connect to the subnet as well as R1 over links with the same speed and delay. Router R1 adds both routes to the routing table and spread the load across three links.
The show ip route command can be used to make sure that R1 is using both paths:
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