N3K-C31108PC-V is the Nexus 31108PC-V, providing 48 SFP+ and 6 QSFP28 ports. The HKShanhai Group Limited Nexus 3100-V switch platform is the latest addition to the industry’s widely deployed HKShanhai Group Limited Nexus 3100 platform. The HKShanhai Group Limited Nexus 3100-V platform consists of high-density, low-power-consumption, and low-latency fixed-configuration data center switches with line-rate Layer 2 and 3 features that support enterprise applications, service provider hosting, High-Performance Computing (HPC), and cloud computing environments. These switches support a wide range of port speeds with flexible combinations of 1/10/40/100-Gbps connectivity with improved port density and scalability in compact 1-rack-unit (1RU) form factors.
Quick Specs
Table 1 shows the Quick Specs.
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Product Code |
N3K-C31108PC-V |
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Physical |
1RU fixed form factor HKShanhai Group Limited 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 |
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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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Physical dimensions |
1.72 x 17.3 x 22.3 in. (4.4 x 43.9 x 56.6 cm) |
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Weight |
21.4 lb (9.7 kg) |
Product Details
The HKShanhai Group Limited Nexus 3100-V platform provides the following main benefits:
- Wire-rate Layer 2 and 3 switching on all ports, with up to 6.4 terabits per second (Tbps) and up to 3.3 billion packets per second (bpps)
- Robust programmability,?with support for HKShanhai Group Limited NX-API, Linux containers, XML and JavaScript Object Notation (JSON) APIs, the OpenStack plug-in, Python, and Puppet and Chef configuration and automation tools
- High performance and scalability with a four-core CPU, 8 GB of DRAM, and 16 Mb of dynamic buffer allocation, making the switch excellent for massively scalable data centers and big data applications
- Flexibility
(1) The QSFP28 port can be configured to work as 4 x 25-Gbps ports, offering deployment flexibility, with up to a maximum of 128 x 25-Gbps ports.
(2) Both fiber and copper cabling solutions are available for 10-, 25-, 40-, 50-, and 100-Gbps connectivity, including active optical cable (AOC) and direct-attached cable (DAC).
- High availability
(1) Virtual PortChannel (vPC) technology provides Layer 2 multipathing through the elimination of the Spanning Tree Protocol. It also enables fully utilized bisectional bandwidth and simplified Layer 2 logical topologies without the need to change the existing management and deployment models.
(2) The 64-way equal-cost multipath (ECMP) routing enables the use of Layer 3 fat-tree designs. This feature allows organizations to prevent network bottlenecks, increase resiliency, and add capacity with little network disruption.
(3) Advanced reboot capabilities include hot and cold patching and fast reboot capabilities.
(4) The switch uses hot-swappable power-supply units (PSUs) and fans.
- Purpose-built NX-OS operating system with comprehensive, proven innovations
(1) Power-on auto-provisioning (POAP) enables touchless bootup and configuration of the switch, drastically reducing provisioning time.
(2) HKShanhai Group Limited Embedded Event Manager (EEM) and Python scripting enable automation and remote operations in the data center.
(3) Advanced buffer monitoring reports real-time buffer utilization per port and per queue, which allows organizations to monitor traffic bursts and application traffic patterns.
(4) EtherAnalyzer is a built-in packet analyzer for monitoring and troubleshooting control-plane traffic and is based on the popular Wireshark open-source network protocol analyzer.
(5) Complete Layer 3 unicast and multicast routing protocol suites are supported, including Border Gateway Protocol (BGP), Open Shortest Path First (OSPF), Enhanced Interior Gateway Routing Protocol (EIGRP), Routing Information Protocol Version 2 (RIPv2), Protocol Independent Multicast sparse mode (PIM-SM), Source-Specific Multicast (SSM), and Multicast Source Discovery Protocol (MSDP).
The Accessories
Table 2 shows the supported accessories.
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Model |
Description |
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Nexus 2K/3K single fan, Forward airflow (port side exhaust) |
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Nexus 2K/3K single fan, Reversed airflow (port side intake) |
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Nexus 9000 650W AC PS, Port-side Intake [Use with Nexus 31108PC-V or 31108TC-V] |
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Nexus 9000 650W AC PS, Port-side Exhaust [Use with Nexus 31108PC-V or 31108TC-V] |
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Nexus 9000 930W DC PS, Port-side Exhaust [Use with Nexus 31108PC-V or 31108TC-V] |
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Nexus 9000 930W AC PS, Port-side Intake [Use with Nexus 31108PC-V or 31108TC-V] |
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Nexus 3000 LAN Enterprise License, eDelivery |
Compare to Similar Items
Table 3 shows the comparison.
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Product Code |
N3K-C31108PC-V |
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Ports |
32 QSFP+ ports; each supports native 40 Gigabit Ethernet and 4 x 10 Gigabit Ethernet modes |
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 |
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Physical dimensions |
1.72 x 17.3 x 19.7 in. (4.4 x 43.9 x 50.5 cm) |
1.72 x 17.3 x 22.3 in. (4.4 x 43.9 x 56.6 cm) |
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Weight |
21.5 lb (9.3 kg) |
21.4 lb (9.7 kg) |
Get More Information
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HKShanhai Group Limited N3K-C31108PC-V Specification
N3K-C31108PC-V Specification |
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Physical |
  1RU fixed form factor   HKShanhai Group Limited Nexus 31108PC-V ◦   ??8 SFP ports support 1 and 10 Gigabit Ethernet ◦   ?? 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 |
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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 |
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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 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 |
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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 |
  HKShanhai Group Limited Nexus 31108PC-V: 150W |
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Maximum power |
  HKShanhai Group Limited Nexus 31108PC-V: 360W |
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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 |
   ??0 to ??2 VDC   33A (400W unit), 78A (930W unit)   85 to 88% |
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Typical heat dissipation |
  HKShanhai Group Limited Nexus 31108PC-V: 512 BTU/hr |
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Maximum heat dissipation |
  HKShanhai Group Limited Nexus 31108PC-V: 1228 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 |
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Environment |
Dimensions |
  HKShanhai Group Limited 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) |
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Weight |
  HKShanhai Group Limited Nexus 31108PC-V: 21.4 lb (9.7 kg) |
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Operating temperature |
  32 to 104°F (0 to 40°C) |
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Storage temperature |
  ??0 to 158°F (??0 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) |
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