Switching Capacity: 25.6 Tbps (per Cisco datasheet c78-743854 and most resellers; some listings show 12.8 Tbps, likely the -M variant or an older revision)
Forwarding Rate: 4.17 Bpps per Cisco datasheet copy (other listings show 5.77 Bpps or 14.4 Bpps; verify against current Cisco PDF)
Ports (breakdown): 32x 400G QSFP-DD (also run as 100G/200G, supports 4x100G breakout); 2x 1/10G SFP+; 1x management; 1x console
PoE Budget: N/A (no PoE)
Layer: L2/L3
Stacking support: No (multi-chassis redundancy via vPC)
Curation Review
✔ Pros:32x 400G QSFP-DD ports in a 1RU chassis gives very high port density; Flexible 100G/200G/400G operation with 4x100G breakout; Full L2/L3 feature set with VXLAN EVPN and optional Cisco ACI support on NX-OS; Large packet buffer (about 120 MB) suits leaf/spine data center and AI/ML fabrics; Strong value per port compared with modular chassis at similar bandwidth
✘ Cons:No PoE and no campus access role, so it is limited to data center and fabric deployments; Requires QSFP-DD optics or DAC/AOC cables, which add significant cost; No stacking, so redundancy depends on vPC or fabric design; Published switching capacity and forwarding rates conflict across Cisco revisions and resellers; Street prices vary widely (about $25k to $78k) and are often third-party or refurbished