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 |
|---|
| Width | 17.4" |
| Depth | 23.7" |
| Weight | 22.3 lbs |
| 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 |
| Forwarding rate | 1400 Mpps |
| Queue scheduling algorithms | Weighted Round Robin (WRR), Weighted random early detection (WRED) |
| Active link detection | Y |
| Authentication type | AAA, RADIUS |
| Root protection | Y |
| Access Control List (ACL) egress | 1000 |
| Access Control List (ACL) ingress | 4000 |
| Weighted random early detection (WRED) | Y |
| Switch Type | Managed |
| Broadcast storm control | Y |
| Link aggregation | Y |
| Access Control List (ACL) | Y |
| SSH/SSL support | Y |
| ARP inspection | Y |
| Height | 3.39" |
| Noise level | 76.9 dB |
| LED indicators | Y |
| Basic switching RJ-45 Ethernet ports quantity | 1 |
| Basic switching RJ-45 Ethernet ports type | Gigabit Ethernet (10/100/1000) |
| USB 2.0 ports quantity | 2 |
| Flow control support | Y |
| Product color | Gray |
| Form factor | 2U |
| 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" |
| Console port | RS-232 |
| Fiber optic connector | QSFP+, SFP+ |
| 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 |
| Power consumption (typical) | 148 W |
| Power consumption (max) | 413 W |
| DC input voltage | 40 - 72 V |
| Redundant power supply (RPS) support | Y |
| AC input frequency | 50 - 60 Hz |
| AC input voltage | 100 - 240 V |
| Jumbo frames | 9216 |
| Virtual LAN features | Private VLAN, Tagged VLAN |
| Multicast support | Y |
| Jumbo frames support | Y |
| 10G support | Y |
| VLAN support | Y |
| Spanning tree protocol | Y |
| Quality of Service (QoS) support | Y |
| MAC address table | 288000 entries |
| Rack mounting | Y |
| Web-based management | Y |
| Switch layer | L2/L3 |
| Power over Ethernet (PoE) | N |
| Routing protocols | BGP, EIGRP, HSRP, OSPF, RIP-2, VRRP |
| Flash memory | 64000 MB |
| Security algorithms | AES, SNMPv3, SSH-2 |
| System event log | Y |
| Packet buffer memory | 12 MB |