Implementing Aruba Campus Switching solutions

To verify if the network infrastructure is prioritizing traffic correctly, the administrator should check the interface queue statistics on the switches involved. By clearing the interface statistics, running the application, and then examining the interface queue statistics for the switch-to-switch links, the administrator can determine if the packets are being prioritized in the appropriate queues. This provides direct evidence of how the traffic is being handled along the entire path between Device 1 and Device 2.

To ensure Switch-3 prefers the link to Switch-1 over the link to Switch-2 for intra-area, inter-area, and external traffic, the network administrator should adjust the OSPF cost on the relevant VLANs. Setting the OSPF cost on VLAN 108 higher than 1 on Switch-2 and Switch-3 will increase the cost associated with the route through Switch-2. This change will make the route through Switch-1 the preferred path, as OSPF will select the route with the lower cost.