The first step to a resilient network is to have a clear strategy for how to achieve it and consider that simplicity modularity, and security play important roles. What is critically important to…

High-performance hardware features represent only one dimension of resilience and do not address the broader set of factors such as protocol behavior, topology design, and failure recovery that determine whether a network is truly resilient.

Device speed selection is a narrow hardware specification decision and does not encompass the full range of factors - such as routing protocol convergence times, traffic engineering, and redundancy design - required to build a resilient network.

Factors affecting network performance - including traffic patterns, protocol convergence behavior, congestion points, latency, and failure modes - must be fully understood because resilient network design requires anticipating how the network behaves under stress and during failures. Without this comprehensive understanding, choices around redundancy, topology, routing protocol selection, and segmentation cannot be made with the precision needed to ensure continuity of service when components fail.

Device speed impacting data plane protocols is a specific and limited sub-topic within network performance analysis and is too narrow to serve as the critically important foundational understanding required for resilient IP network design.