An engineer is designing a Layer 3 campus network running EIGRP between the core, aggregation, and access layers. The access layer switches will be connected to the aggregation layer using Layer 3 copper connections. The engineer wants to improve convergence time for access layer switch failures. Which technique must the design include?
- enabling BFD for EIGRP on the access layer uplinks
- reducing the EIGRP Hello / Hold timer values
- EIGRP summarization from core to aggregation layer
- EIGRP summarization from access to aggregation layer