The Cisco Nexus® 31128PQ Switch is a dense, high-performance Layer 2 and 3, 10- and 40-Gbps switch that is a member of the Cisco Nexus 3100 switches. The Nexus 3100 switches are the second-generation Cisco Nexus 3000 series switches and offer improved port density, scalability, and features compared to the first-generation switches. The Cisco Nexus 31128PQ comes in a compact two-rack-unit (2RU) form factor and runs the industry-leading Cisco® NX-OS Software operating system, providing customers comprehensive features and functions that are widely deployed. It supports both forward and reverse (port side exhaust and port side intake) airflow schemes with AC and DC power inputs. The Cisco Nexus 31128PQ is well suited for data centers that require a cost-effective, power-efficient line-rate Layer 2 and 3 access or leaf switch.
Products specifications
| Attribute name |
Attribute value |
|
Weight
|
8000 MB |
|
Authentication type
|
8000 |
|
Access Control List (ACL) ingress
|
Y |
|
Heat dissipation
|
505 BTU/h |
|
Switching capacity
|
2500 Gbit/s |
|
Number of VLANs
|
4096 |
|
SFP+ module slots quantity
|
96 |
|
DHCP features
|
DHCP snooping, DHCP relay |
|
QSFP+ module slots quantity
|
8 |
|
Queue scheduling algorithms
|
Weighted Round Robin (WRR), Weighted random early detection (WRED) |
|
Root protection
|
Y |
|
Access Control List (ACL) egress
|
1000 |
|
Weighted random early detection (WRED)
|
Y |
|
Width
|
17.4" |
|
Depth
|
23.7" |
|
Height
|
3.39" |
|
Switch Type
|
Managed |
|
Broadcast storm control
|
Y |
|
Link aggregation
|
Y |
|
Access Control List (ACL)
|
Y |
|
SSH/SSL support
|
Y |
|
Forwarding rate
|
1400 Mpps |
|
ARP inspection
|
Y |
|
Active link detection
|
Y |
|
Form factor
|
2U |
|
Product color
|
Gray |
|
Flow control support
|
Y |
|
Noise level
|
76.9 dB |
|
LED indicators
|
Y |
|
Fiber optic connector
|
85176990 |
|
Console port
|
RS-232 |
|
Networking standards
|
IEEE 802.1D, IEEE 802.1Q, IEEE 802.1ab, IEEE 802.1p, IEEE 802.1s, IEEE 802.1w, IEEE 802.3ad, IEEE 802.3ae, IEEE 802.3z |
|
MAC address table
|
288000 entries |
|
Rack mounting
|
Y |
|
Basic switching RJ-45 Ethernet ports quantity
|
1 |
|
USB 2.0 ports quantity
|
2 |
|
Basic switching RJ-45 Ethernet ports type
|
Gigabit Ethernet (10/100/1000) |
|
Power consumption (typical)
|
AC, USB Type-C |
|
Power consumption (max)
|
413 W |
|
DC input voltage
|
40 - 72 V |
|
AC input frequency
|
50 - 60 Hz |
|
AC input voltage
|
100 - 240 V |
|
Redundant power supply (RPS) support
|
Y |
|
Virtual LAN features
|
Private VLAN, Tagged VLAN |
|
Multicast support
|
Y |
|
Jumbo frames support
|
Y |
|
Jumbo frames
|
9216 |
|
10G support
|
Y |
|
Quality of Service (QoS) support
|
Y |
|
VLAN support
|
Y |
|
Spanning tree protocol
|
Y |
|
Operating temperature (T-T)
|
0 - 50 °C |
|
Storage temperature (T-T)
|
-40 - 70 °C |
|
Operating relative humidity (H-H)
|
10 - 85 % |
|
Storage relative humidity (H-H)
|
5 - 95 % |
|
Operating altitude
|
0 - 118110.2" |
|
Packet buffer memory
|
12 MB |
|
Flash memory
|
64000 MB |
|
Web-based management
|
Y |
|
Switch layer
|
L2/L3 |
|
Security algorithms
|
Private VLAN, Tagged VLAN |
|
System event log
|
Y |
|
Routing protocols
|
Back-to-front airflow |
|
Power over Ethernet (PoE)
|
N |
