Cisco Nexus 31128PQ, 96 SFP+ ports, 8 QSFP+ ports, 2RU switch (N3K-C31128PQ-10GE)
Rp245.287.800
Specifications
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Description |
Specification |
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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
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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)
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Hardware tables and scalability* |
Number of MAC addresses |
288,000 |
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Number of VLANS |
4096 |
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Number of spanning-tree instances |
● RSTP: 512
● MSTP: 64
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Number of Access Control List (ACL) entries |
4000 ingress 1000 egress |
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Routing table |
● 16,000 prefixes and 16,000 host entries *
● 8000 multicast routes *
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Number of EtherChannels |
64 (with vPC) |
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Number of ports per EtherChannel |
16 |
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Buffer size |
12 MB shared |
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Boot flash memory |
64 GB SSD |
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Power |
Frequency |
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Power supply types |
● AC (forward and reversed airflow)
● DC (forward and reversed airflow)
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Typical operating power |
148 watts (W) |
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Maximum power |
413 watts (W) |
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AC PSUs ● Input voltage
● Frequency
● Efficiency
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● 100 to 240 VAC
● 50 to 60 Hz
● 89 to 91% at 220V
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DC PSUs ● Input voltage
● Maximum current (PSU output – System input)
● Efficiency
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● -40 to -72 VDC
● 78A
● 85 to 88%
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Power-supply efficiency |
89 to 91% at 220V |
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Typical heat dissipation |
505 BTU/hr |
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Maximum heat dissipation |
1409 BTU/hr |
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Cooling |
◦ 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)
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