QFX5110‑48S‑AFO3 Specifications
Manufacturer: Juniper Networks
Manufacturer Model: QFX5110‑48S‑AFO3
Product Line: QFX5110 Series Ethernet Switch
Product Series: 48S (48× 10Gb SFP+ + 4× QSFP28 uplinks), AFO3 (Front‑to‑Back Airflow)
Product Type: Fixed 1 RU Data Center / Leaf Access Switch
Product Name: Juniper QFX5110‑48S‑AFO3 Switch
KEY FEATURES:
Ports: 48 × 10GbE (SFP+) + 4 × QSFP28 (can be 40GbE or 100GbE)
Uplink/Breakout: Each QSFP28 can be configured as 4×10GbE (via breakout) increasing port density
Switching capacity: ~1.76 Tbps (bidirectional) / ~1.32 Bpps forwarding rate
Buffer: 16 MB shared packet buffer
MAC address table size: 288,000 entries
VLAN IDs supported: 4,093
Ultra‑low latency: ~550 nanoseconds
Supports EVPN‑VXLAN, MPLS, rich Layer 2 + Layer 3 capabilities (underlay + overlay)
Airflow direction: Front‑to‑Back (AFO variant) suitable for cold‑aisle / hot‑aisle data‑centers
PERFORMANCE:
Switching Capacity: ~1.76 Tbps (bidirectional)
Forwarding Rate: ~1.32 billion packets per second (approx)
Latency: ~550 ns
IPv4 Unicast Routes: 128,000
IPv6 Unicast Routes: 84,000
Jumbo frame support up to 9,216 bytes
ENVIRONMENTAL & RELIABILITY:
Designed for high‑density data center leaf/spine deployments
Typical power load: ~195 W; Max load: ~300 W
Hot‑swappable fan modules, redundant fans for reliability
Supports front‑to‑back airflow (AFO) variant for optimum cooling in standard racks
PHYSICAL:
Form Factor: 1 RU rackmount
Dimensions (W × H × D): ~17.36 in × 1.72 in × 20.48 in (44.09 cm × 4.37 cm × 52.02 cm)
Weight: approx ~10.4 kg (23 lbs) for chassis base
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