Nexus 31108TC-V, 48 10Gbase-T RJ-45 and 6 QSFP28 ports
N3K-C31108TC-V Specification |
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Physical |
● 1RU fixed form factor ● Cisco Nexus 31108TC-V ◦ 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 or 100 Gigabit Ethernet ● Redundant fans (3+1) ● 2 redundant power supplies ● Management, console, and USB flash-memory ports |
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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) |
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Hardware tables and scalability |
Number of MAC addresses |
288,000 |
Number of VLANS |
4096 |
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Number of spanning-tree instances |
● RSTP: 512 ● MSTP: 64 |
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Number of ACL entries |
● 16,000 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 |
32 |
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System memory |
16 GB |
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Buffer size |
16 MB shared |
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Boot flash |
64 GB SSD (31108PC-V, 31108TC-V, and 31108TCV-32T) |
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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) |
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Typical operating power |
● Cisco Nexus 31108TC-V and 31108TCV-32T: 260W |
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Maximum power |
● Cisco Nexus 31108TC-V and 31108TCV-32T: 470W |
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AC PSUs ● Input voltage ● Frequency ● Efficiency |
● 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 |
● –40 to –72 VDC ● 33A (400W unit), 78A (930W unit) ● 85 to 88% |
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Typical heat dissipation |
● Cisco Nexus 31108TC-V and 31108TCV-32T: 887 BTU/hr |
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Maximum heat dissipation |
● Cisco Nexus 31108TC-V and 31108TCV-32T: 1603 BTU/hr |
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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) |
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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 |
● 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 31108TC-V and 31108TCV-32T: 22.0 lb (10 kg) |
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Operating temperature |
● 32 to 104°F (0 to 40°C) |
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Storage temperature |
● –40 to 158°F (–40 to 70°C) |
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Operating relative humidity |
● 10 to 85% noncondensing ● Up to 5 days at maximum (85%) humidity ● Recommend ASHRAE data center environment |
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Storage relative humidity |
● 5 to 95% noncondensing |
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Altitude |
● 0 to 10,000 ft (0 to 3000m) |