Refer to the exhibit.

hardware profile dlb

dlb-interface all

mode flowlet

The exhibit shows materially uneven utilization across the eight interfaces, with receive utilization ranging from approximately 32.5% to 75.3%. Cisco Dynamic Load Balancing addresses this problem by considering current path utilization rather than relying exclusively on static ECMP hashing.

The configuration begins with hardware profile dlb, which enters the DLB hardware-profile context. dlb-interface all enables DLB on all eligible Layer 3 physical interfaces. Cisco documents both an explicit interface list and the all keyword for this purpose. The document's supplied drag-and-drop answer then selects mode flowlet. Cisco defines flowlet load balancing as the default DLB mode, in which forwarding decisions use Dynamic Resilient Ethernet metrics to select less-loaded paths while maintaining packet ordering within a flowlet.

Cisco also supports per-packet DLB, which can produce even greater path utilization but can reorder packets. When NVIDIA adaptive-routing capabilities are explicitly enabled and endpoints can handle reordering, Cisco documents per-packet DLB as an optimized alternative. That additional prerequisite is not stated in this question.

Therefore, the source-derived configuration is DLB / all interfaces / flowlet .

Study Guide Reference: AI Infrastructure Deployment and Data Management — Dynamic Load Balancing, ECMP optimization, AI backend fabrics, and traffic distribution.

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