Cisco WS-C3550-12G Switch Guide - Page 158

Fixed Switches: Cisco Nexus 3000 Series Hardware Features Description Specification Power Number of power supplies 2 (redundant) Typical operating power 120 watts (W) (48p of 1G and 4p of 10G/SR at 100% load, with 2 power supply units [PSUs]) Maximum power 124 Watts Input voltage 100 to 240 VAC Frequency 50 to 60 Hz Power supply efficiency 89 to 91% at 220V Typical heat dissipation 409 BTU/hr (48p of 1G and 4p of 10G/SR at 100% load, with 2 PSUs) Maximum heat dissipation 423 BTU/hr Cooling • Forward and reversed airflow schemes • Forward airflow: Port-side exhaust (air enters through fan-tray and power supplies and exits through ports) • Reversed airflow: Port-side intake (air enters through ports and exits through fan tray and power supplies) • Single fan tray with redundant fans • Hot swappable (must swap within 1 minute) Environment Dimensions (height x width 1.72 x 17.3 x 19.7 in. (4.4 x 43.9 x 50.5 cm) x depth) Weight 20.5 lb (9.3 kg) Operating temperature 32 to 104° F (0 to 40°C) Storage temperature -40 to 158° F (-40 to 70°C) Operating relative humidity • 10 to 85% noncondensing • Up to 5 days at maximum (85%) humidity • Recommend ASHRAE data center environment Storage relative humidity 5 to 95% noncondensing Altitude 0 to 10,000 ft (0 to 3000m) Nexus 3016 Switch Physical • 1RU fixed form-factor switch • 16 QSFP ports; each supports native 40 Gigabit Ethernet and 4 x 10 Gigabit Ethernet modes • 2 redundant power supplies • 1 fan tray with redundant fans • 1 I/O module with management, console, and USB flash memory ports Performance • 1.28-Tbps switching capacity • Forwarding rate of 960 mpps • Line-rate traffic throughput (both Layer 2 and 3) on all ports • Configurable maximum transmission units (MTUs) of up to 9216 bytes (jumbo frames) 156