Company XYZ has a hub-and-spoke topology over an SP-managed infrastructure.

The hub CE router is receiving IP SLA probes from all spokes, processing and responding to every request. As more spokes are added, the CPU workload on the hub increases exponentially due to:

Processing incoming IP SLA packets.

Generating and transmitting responses.

Monitoring CPU utilization at the hub ensures early detection of processing bottlenecks that could impact SLA accuracy and overall performance — a core CCDE v3.1 business-driven design consideration in centralized measurement architectures.

Why other options are incorrect:

A & B: Spoke resources are minimally taxed.

D: Buffer usage isn't the main limiting factor for IP SLA responsiveness.