IPExpert V3 Lab2

Task 1.3 : MST -3

Question was about minimal impact STP : means minimal instance.
But Vlan 1314 is only on one link that could be blocked if one instance because not connected to the root. Assuming Cat3 could assist Cat2 in root role, we'll use an instance with Cat3 as root for vlan 1314.

Task 2.4 : EIGRP

The goal was to summarize without Null route.
I used static with redistribute.
Proctor solution is used summary-address command with distance of 255 wich prevent IOS from installing a Null0.