Full English Description for Cisco N9K-C9372TX

1. Part Number Naming Breakdown

Model: N9K-C9372TX

N9K: Cisco Nexus 9000 series fixed data center switch family
C93: First-generation Nexus 9300 classic fixed leaf/spine switch hardware platform
72: Total 72 fixed RJ45 copper downlink ports
TX: 1/10GBASE-T auto-sensing copper RJ45 port variant, powered by Trident II ASIC, supports dual NX-OS standalone and ACI fabric operation modes

2. Short Sales One-Liner (For BOM, Quotation & Datasheet Header)

Cisco Nexus N9K-C9372TX, 1RU rack-mount high-density leaf data center switch, 72 auto-sensing 1/10GBASE-T RJ45 copper ports, 1.44 Tbps non-blocking switching capacity, dual hot-swappable redundant power supplies and variable-speed fan trays, dual-mode standalone NX-OS or ACI fabric operation, designed for top-of-rack copper server aggregation, virtualized enterprise and mid-scale ACI data center deployments.

3. Complete Product Overview Paragraph

The Cisco Nexus N9K-C9372TX is a compact 1RU fixed-port Layer 2 / Layer 3 Ethernet switch within the original Nexus 9300 classic portfolio, primarily deployed as top-of-rack leaf switches for server racks with 1G and 10G copper cabling in virtualized enterprise data centers and ACI intent-based cloud fabrics. Equipped with 72 RJ45 copper ports supporting auto-negotiation of 100M / 1G / 10G transmission speeds, the chassis delivers full wire-rate non-blocking forwarding with a total switching bandwidth of 1.44 Tbps and forwarding throughput of 1.08 billion packets per second for 64-byte minimum frames. All copper ports comply with IEEE 802.3ab 1000BASE-T and 802.3an 10GBASE-T standards, supporting Cat6A cabling for stable 10G transmission over maximum 100-meter distances and Cat5e for up to 5G speeds.

The chassis integrates dedicated out-of-band 1G RJ45 management, mini-USB RS232 console and dual USB Type-A ports to enable POAP zero-touch provisioning, offline configuration backup and firmware upgrades. Dual hot-swappable redundant power supply modules and N+1 redundant variable-speed fan trays eliminate single points of hardware failure, with bidirectional airflow options (port-side intake / port-side exhaust) selectable at order time to adapt to diverse rack thermal layouts. This platform supports two independent operating modes: modular standalone Cisco NX-OS for traditional routed data center architectures, or native ACI fabric mode for policy-driven automated multi-tenant infrastructure. Built-in ASIC hardware acceleration enables EVPN/VXLAN overlay routing, FCoE compute-storage convergence and hardware MACsec encryption, paired with full telemetry and open automation APIs to build scalable leaf-spine fabrics. Featuring industry-leading 72-port 10G copper density in a single 1RU unit, the N9K-C9372TX optimizes rack space utilization for dense copper server rack aggregation workloads.

4. Detailed Hardware Interface Specifications

Main Data Ports (72 × Auto-Sensing 1/10GBASE-T RJ45)

Supported speed auto-negotiation: 100M, 1G, 10G
Cabling requirement: Cat6A for full 10G 100m transmission; Cat5e limited to max 5G
All 72 copper ports operate wire-rate simultaneously under full load without speed grouping restrictions

Management & Auxiliary Ports

1 × 10/100/1000BASE-T RJ45 out-of-band management port
1 × Mini-USB RS232 console port for local CLI access
Dual USB 2.0 Type-A ports for config backup, firmware upload and POAP zero-touch deployment

Power & Cooling

Dual hot-swappable power supply options: 650W AC, 930W DC, 1200W HVAC/HVDC (1+1 active redundancy, live hot-swap without service interruption)
N+1 redundant variable-speed fan trays, airflow options: PI (port-side intake) / PE (port-side exhaust)
Operating temperature range: 0°C ~ 40°C full load; non-operating storage range: -40°C ~ 70°C
Humidity tolerance: 5%–85% non-condensing; maximum operating altitude: 4000 meters

Physical Form Factor

Dimensions: 1RU standard 19-inch rack chassis, 4.4 cm (H) × 43.9 cm (W) × 57.1 cm (D)
RoHS-6 compliant, NEBS Level 3 qualified, 80Plus high-efficiency power certified

Core Hardware Performance Benchmarks

Total switching capacity: 1.44 Tbps full duplex non-blocking
Forwarding rate: 1.08 Bpps (64-byte frame wire-rate)
Shared dynamic packet buffer for congestion absorption
MAC address table size: 128,000 MAC forwarding entries
IPv4 / IPv6 unicast route table capacity: 128,000 routing entries
VLAN support: Up to 4094 standard IEEE 802.1Q tagged VLANs
System memory: 16GB DRAM + 64GB onboard SSD storage
Typical cut-through switching latency: 1–2 microseconds for minimum-size frames

5. Core Software Feature Suite (Dual NX-OS / ACI Operation Modes)

Layer 2 & Layer 3 Routing

Static routing, RIP, OSPFv2/v3, EIGRP, BGP, VRRP, PIM sparse/dense multicast, FCoE Fibre Channel over Ethernet for unified compute and storage fabrics

Cloud Fabric Overlay

Hardware-accelerated EVPN/VXLAN, symmetric & asymmetric VXLAN routing, multi-tenant fabric segmentation

Enterprise Security

802.1X port authentication, MAB MAC bypass authentication, DHCP Snooping, Dynamic ARP Inspection, CoPP control-plane policing, hardware 128-bit MACsec link encryption, TrustSec SGT zero-trust segmentation

Monitoring & Telemetry

Sampled IPFIX streaming telemetry, ERSPAN remote port mirroring, local SPAN / VSPAN, real-time port buffer and queue utilization monitoring

Automation & DevOps

POAP zero-touch provisioning, NX-API REST JSON/XML interfaces, embedded Linux Bash shell, Python scripting, containerized application hosting, ISSU in-service software upgrade without traffic downtime

High Availability

Modular fault-isolated process architecture, stateful process restart, redundant control plane, hot-swappable power supply and fan FRUs

6. Typical Deployment Use Cases

Top-of-Rack (ToR) leaf switch for dense 10G copper server rack aggregation
Converged compute/storage fabric node supporting FCoE SAN block storage traffic
Leaf access node for medium-scale ACI Application Centric Infrastructure fabrics
Enterprise virtualization data center access layer for widespread copper server infrastructure

7. Datasheet Short Summary Paragraph

The Cisco Nexus N9K-C9372TX is a 1RU classic-generation data center leaf switch equipped with 72 auto-sensing 1/10GBASE-T RJ45 copper ports, delivering 1.44 Tbps non-blocking switching performance with dual redundant power and cooling hardware. Supporting both standalone modular NX-OS and ACI fabric operational modes, it provides hardware VXLAN EVPN overlay, FCoE storage convergence and enterprise security acceleration, acting as a high-density cost-effective leaf aggregation switch for virtualized enterprise and mid-size ACI cloud data centers built around 10G copper server cabling.


	© 2026 Kino Technology Limited. All Rights Reserved. \| Hong Kong Registered · Shenzhen Operation \| New & Genuine Used Network Equipment Supplier