PACKETPERF

Primary Device

Juniper Networks QFX5220-32CD
Juniper Networks QFX5220-32CD
★ 3.3 Value Score

Technical Specifications

  • Switching Capacity: 12.8 Tbps unidirectional (25.6 Tbps bidirectional)
  • Forwarding Rate: 8 Bpps
  • Ports: 32 x 400GbE QSFP-DD (port options 400GbE, 100GbE, or 40GbE per Juniper datasheet)
  • PoE Budget: N/A (no PoE)
  • Layer: L2/L3
  • Stacking support: Not confirmed by official Juniper sources; Virtual Chassis appears only in a reseller listing. Official design is a two-tier leaf/spine fabric with QFX10000 spines
  • Form Factor: 1U fixed
  • Operating System: Junos OS Evolved (19.1R1 and later)
  • Control Plane CPU: Intel Xeon D-1518
  • Power (typical): 730 W at 115-127 V; 378 W at 220-240 V (Juniper docs)
  • Power (max): Up to 973 W reported by resellers; Juniper docs list 712 W max at 220-240 V
  • MAC Addresses: 8,192
  • IPv4 Routes: 336,000 unicast/multicast
  • IPv6 Routes: 130,000
  • VLANs: 3,968
  • Latency: 750 ns
  • Packet Buffer: 128 MB per Juniper Korea spec page; 64 MB per reseller (conflicting, unverified)

Curation Review

  • ✔ Pros: 32 x 400GbE high-density ports in a 1U footprint; 12.8 Tbps switching capacity and 8 Bpps forwarding for leaf/spine data center fabrics; Full L2 and L3 feature set on Junos OS Evolved; Port speed flexibility (400GbE, 100GbE, 40GbE) on the same hardware; Low typical power draw relative to port density (378 W to 730 W typical); Redundant power supply option with 1600 W PSUs; Sub-microsecond latency (750 ns)
  • ✘ Cons: Very high acquisition cost at reseller prices, with listings from about $24,700 to $56,300 for new units; Price varies widely by airflow variant (AFO/AFI), so buyers must check the exact SKU; Official documentation conflicts on packet buffer size (128 MB vs 64 MB) and on max power draw; Stacking and Virtual Chassis Fabric support is not confirmed by an official source; No independent third-party reviews found, so pros and cons rely on vendor specs; Requires 400GbE optics and cabling that add substantial cost to deployments
  • Est. Price: $24,698 - $56,257

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