Nexus 3172PQ Switch

The Cisco Nexus® 3172PQ, 3172TQ, 3172TQ-32T, 3172PQ-XL, and 3172TQ-XL Switches are dense, high-performance, 10- and 40-Gbps Layer 2 and 3 switches that are members of the Cisco Nexus 3100 switch platform. All switches offer improved port density and scalability in compact one-rack-unit (1RU) form factors. The Cisco Nexus 3172 switches run the industry-leading Cisco® NX-OS Software operating system, which helps ensure continuous availability and sets the standard for mission-critical data center environments. They are well suited for data centers that require cost-effective, power-efficient line-rate Layer 2 and 3 top-of-rack (ToR) switches. These switches also support forward and reverse airflow (port-side exhaust and port-side intake) schemes with AC and DC power inputs.

Manufacturer Part Number
N3K-C3172-FD-L3
Full Product Specifications

Note:

  • The full product specifications below are from the manufacturer and may contain information related to other package quantities that will not apply to the product that you are reviewing. Please confirm the actual content and/or package quantity from the main product specifications page.
  • These specifications may represent the entire product series/model/line to which this product belongs with specific configuration differences between the individual products stated.
  • These specifications may have been copied from the same product in other region/country in which case there might be minor differences in region-specific data such as Input Voltage, Terms of Warranty etc.

Physical:

  • 1RU fixed form factor
  • Cisco Nexus 3172PQ and 3172PQ-XL: 72 x 10 Gigabit Ethernet ports (48 SFP+ and 6 QSFP+)
  • 48 SFP ports support 1 and 10 Gigabit Ethernet
  • 6 QSFP ports support 4 x 10 Gigabit Ethernet or 40 Gigabit Ethernet each
  • Cisco Nexus 3172TQ and 3172TQ-XL: 72 x 10 Gigabit Ethernet ports (48 10GBASE-T and 6 QSFP+)
  • 48 RJ-45 ports support 100 Mbps, 1 Gbps, and 10 Gbps
  • 6 QSFP ports support 4 x 10 Gigabit Ethernet or 40 Gigabit Ethernet each
  • Cisco Nexus 3172TQ-32T: 48 x 10 Gigabit Ethernet ports (32 10GBASE-T and 6 QSFP+)
  • 32 RJ-45 ports support 100 Mbps and 1 and 10 Gigabit Ethernet
  • 6 QSFP ports support 4 x 10 Gigabit Ethernet or 40 Gigabit Ethernet each
  • Redundant fans (3+1)
  • 2 redundant power supplies
  • Management, console, and USB flash-memory ports
Performance:
  • 1.4-Tbps switching capacity
  • Forwarding rate of up to 1 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 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: 32

System memory:
  • 4 GB (3172PQ, 3172TQ, and 3172TQ-32T)
  • 8 GB (3172PQ-XL and 3172TQ-XL)

Buffer size: 12 MB shared

Boot flash: 2 GB

Power:

Number of power supplies: 2

Power supply types:
  • AC (forward and reversed airflow)
  • DC (forward and reversed airflow)
Typical operating power:

3172PQ and 3172PQ-XL

  • 143 watts (W) (48 SFP+ ports with Twinax, and 6 QSFP+ with SR4 at 100% load)
  • 206 W (48 SFP+ ports with SR, and 6 QSFP+ with QSFP+ ports with SR4 at 100% load)

3172TQ and 3172TQ-XL

  • 360 W (48 10GBASE-T ports with 3m cables, and 6 QSFP+ with QSFP+ ports with SR4 at 100% load)
Maximum power:
  • 3172PQ and 3172PQ-XL: 293W
  • 3172TQ and 3172TQ-XL: 440W
AC PSUs
  • Input voltage: 100 to 240 VAC
  • Frequency: 50 to 60 Hz
  • Efficiency: 89 to 91% at 220V
DC PSUs
  • Input voltage: –40 to –72 VDC
  • Maximum current: 33A
  • Efficiency: 85 to 88%
Typical heat dissipation:

3172PQ and 3172PQ-XL:

  • 488 BTU/hr (48 SFP+ ports with Twinax, and6 QSFP+ with SR4 at 100% load)
  • 703 BTU/hr (48 SFP+ ports with SR, and6 QSFP+ with SR4 at 100% load)

3172TQ and 3172TQ-XL:

  • 1195 BTU/hr (48 10GBASE-T ports with 3m cables, and6 QSFP+ with SR4 at 100% load)
Maximum heat dissipation:
  • 3172PQ and 3172PQ-XL: 1000 BTU/hr
  • 3172PQ, 3172TQ-32T and 3172PQ-XL: 1502 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)
  • Redundant fans
  • Hot swappable (must swap within 1 minute)
Sound:

Measured sound power (maximum)

  • Fan speed: 40% duty cycle 64.9 dBA
  • Fan speed: 70% duty cycle 69.3 dBA
  • Fan speed: 100% duty cycle 76.7 dBA
Environment:

Dimensions (height x width x depth):

●  3172PQ and 3172PQ-XL:

1.72 x 17.3 x 17 in. (4.4 x 43.9 x 43.2 cm)

●  3172TQ, 3172TQ-32T and 3172TQ-XL:

1.72 x 17.3 x 19.7 in. (4.4 x 43.9 x 50.5 cm)

Weight:

●  3172PQ and 3172PQ-XL: 18.0 lb (8.2 kg)

●  3172TQ, 3172TQ-32T and 3172TQ-XL: 22.0 lb (10 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)

Published Date: April 25, 2016
N3K-C3172-FD-L3