N3K-C31108PC-V Specification
|
| Physical |
● 1RU fixed form factor
● Cisco Nexus 31108PC-V
◦ 48 SFP ports support 1 and 10 Gigabit Ethernet
◦ 6 QSFP28 ports support 4 x 10 Gigabit Ethernet or 40 Gigabit Ethernet each or 100 Gigabit Ethernet.
● Redundant fans (3+1)
● 2 redundant power supplies
● Management, console, and USB flash-memory ports |
| Performance |
● 2.16-Tbps switching capacity and forwarding rate of up to 1.2 bpps for 31108PC-V and 31108TC-V
● 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 |
● 16,000 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 |
16 GB |
| Buffer size |
16 MB shared |
| Boot flash |
64 GB SSD (31108PC-V, 31108TC-V, and 31108TCV-32T) |
| Power |
Number of power supplies |
2 |
| Power supply types |
● AC (forward and reverse airflow)
● NXA-PAC-650W-PE and NX-PAC-650W-PI (31108 models)
● DC (forward and reverse airflow)
● NXA-PDC-930W-PE and NX-PDC-930W-PI (31108 models) |
| Typical operating power |
● Cisco Nexus 31108PC-V: 150W |
| Maximum power |
● Cisco Nexus 31108PC-V: 360W |
| 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
● 33A (400W unit), 78A (930W unit)
● 85 to 88% |
| Typical heat dissipation |
● Cisco Nexus 31108PC-V: 512 BTU/hr |
| Maximum heat dissipation |
● Cisco Nexus 31108PC-V: 1228 BTU/hr |
| Cooling |
● Forward and reverse airflow schemes:
◦ Forward airflow: Port-side exhaust (air enters through fan tray and power supplies and exits through ports)
◦ Reverse 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
● Fan speed: 70% duty cycle
● Fan speed: 100% duty cycle |
● 64.9 dBA
● 69.3 dBA
● 76.7 dBA |
| Environment |
Dimensions
(height x width x depth) |
● Cisco Nexus 31108PC-V, 31108TC-V, and 31108TCV-32T: 1.72 x 17.3 x 22.3 in. (4.4 x 43.9 x 56.6 cm) |
| Weight |
● Cisco Nexus 31108PC-V: 21.4 lb (9.7 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) |
