N3K-C31128PQ-10GE – Cisco Nexus 3000 Series

N3K-C31128PQ-10GE Specification

Physical

· 2RU fixed form-factor switch

· 8 QSFP+ ports

· 96 SFP+ ports

· 2 redundant power supplies

· 2 redundant (1+1) fans (2 rotors per fan)

· Management, console, and 2 USB flash-memory ports

Performance

· 2.5 Tbps switching capacity

· Forwarding rate up to 1.4 bpps

· Line-rate traffic throughput (both Layer 2 and 3) on all ports

· Configurable maximum transmission units (MTUs) of up to 9216 bytes (jumbo frames)

Hardware tables and scalability

Number of MAC addresses

288,000

Number of VLANS

4096

Number of spanning-tree instances

· RSTP: 512

· MSTP: 64

Number of access control list (ACL) entries

4000 ingress

1000 egress

Routing table

· 16,000 prefixes and 16,000 host entries

· 8000 multicast routes

Number of EtherChannels

64 (with vPC)

Number of ports per EtherChannel

16

Buffer size

12 MB shared

Boot flash memory

64 GB SSD

Power

Frequency

50 to 60 Hz

Power supply types

· AC (forward and reversed airflow)

· DC (forward and reversed airflow)

Typical operating power

148 watts (W)

Maximum power

413 watts (W)

AC PSUs

· Input voltage

· Frequency

· Efficiency

 · 100 to 240 VAC

· 50 to 60 Hz

· 89 to 91% at 220V

DC PSUs

· Input voltage

· Maximum current (PSU output – System input)

· Efficiency

· -40 to -72 VDC

· 78A

· 85 to 88%

Power-supply efficiency

89 to 91% at 220V

Typical heat dissipation

505 BTU/hr

Maximum heat dissipation

1409 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); supported with AC and DC power supplies

◦   Reversed airflow: Port-side intake (air enters through ports and exits through fan tray and power supplies); supported with AC power supply only

· Redundant fans

· Hot swappable (must swap within 1 minute)

Sound

Measured sound power (maximum)

· Fan speed: 40% duty cycle

· Fan speed: 70% duty cycle

· Fan speed: 100% duty cycle

· 66.1 dBA

· 70.6 dBA

· 76.9 dBA

Environment

Dimensions (height x width x depth)

3.39 x 17.40 x 23.70 in. (8.6 x 44.2 x 60.2 cm)

Weight

22.2 lb (10.1 kg)

Operating temperature

32 to 122°F (0 to 50°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)