• Cisco N9K-C9236C 36-port 40/100G QSFP28 switch, sleek black design
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Cisco

Cisco N9K-C9236C | Nexus 9200 36-Port 100G QSFP28 Switch, 7.2 Tbps, Layer 3

N9K-C9236C

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Description

The Cisco N9K-C9236C Nexus 9236C is a high-performance 1RU data center switch designed for spine-leaf architectures and cloud-scale deployments. With 36 QSFP28 ports supporting flexible 100G/50G/40G/25G/10G breakout configurations, it delivers 7.2 Tbps switching capacity and 5.35 Bpps forwarding rate with line-rate Layer 2 and Layer 3 performance. Powered by Cisco NX-OS, this switch offers advanced automation, VXLAN support, and comprehensive telemetry for modern programmable data center fabrics.

Features

Line-rate Layer 2 and Layer 3 switching with wire-speed performance
- Cisco Cloud Scale ASIC technology for ultra-low latency and high throughput
- Native VXLAN support for network virtualization and multi-tenant environments
- Comprehensive Layer 3 routing protocols: OSPF, BGP, EIGRP, RIPv2, IS-IS
- Multicast routing: PIM-SM, PIM-SSM, MSDP, IGMP
- ECMP (Equal-Cost Multi-Path) routing with up to 256 groups
- MPLS and segment routing support for traffic engineering
- Advanced QoS with priority-based flow control and scheduling
- IEEE 802.1Q VLAN support (up to 4,096 VLANs)
- Spanning Tree Protocol (STP, RSTP, MST) with 64 MST instances
- Link aggregation (LACP) for high-availability uplinks
- Comprehensive security: Access Control Lists (ACLs), 802.1X authentication, control plane policing
- Advanced telemetry and real-time traffic visibility
- Hot-swappable redundant power supplies and fan modules
- Flexible airflow options (port-side intake or exhaust) for hot/cold aisle deployments
- NX-API for RESTful programmability and automation
- Python scripting engine for on-box automation
- DevOps integration with Ansible, Puppet, Chef, and other tools
- Comprehensive SNMP, syslog, and NetFlow monitoring capabilities
- Zero-touch provisioning (POAP) for simplified deployment

Warranty

All products sold by XS Network Tech include a 12-month warranty on both new and used items. Our in-house technical team thoroughly tests used hardware prior to sale to ensure enterprise-grade reliability.

All technical data should be verified on the manufacturer data sheets.

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Technical Specifications

FAQs

Technical Specifications

36x 100G QSFP28 ports with flexible breakout support (1x100G, 1x40G, 2x50G, 4x10G, 4x25G per port)
- Switching capacity: 7.2 Tbps
- Forwarding rate: 5.35 billion packets per second (Bpps)
- Layer 2 and Layer 3 wire-rate switching with ultra-low latency
- Memory: 16 GB system RAM, 64 GB SSD
- MAC address table: 256K entries
- Routing table: 256,000 IPv4 LPM entries, 256,000 host entries
- VLANs supported: 4,096
- VRF instances: 16,000
- Management: CLI, NX-API, SNMP, Python scripting, HTTP/HTTPS
- Form factor: 1RU rack-mountable
- Dimensions: 1.7" H x 22.5" W x 17.3" D
- Weight: 18.2 lb (8.26 kg)
- Power supply: Redundant hot-swappable (1200W AC/HVDC or 930W DC options)
- Maximum power consumption: 640W
- Airflow: Port-side intake or port-side exhaust options
- Operating system: Cisco NX-OS
- Certifications: RoHS-6 compliant

FAQs

Q: What breakout configurations are supported on the QSFP28 ports?
A: Each of the 36 QSFP28 ports can be individually configured for 1x100G, 1x40G, 2x50G, 4x25G, or 4x10G breakout using compatible transceivers and cables. Using 4x10G or 4x25G breakout on all ports provides up to 144 ports of 10G or 25G connectivity in a single 1RU chassis.

Q: Is the N9K-C9236C compatible with Cisco ACI fabric mode?
A: The N9K-C9236C is primarily optimized for Cisco NX-OS standalone mode deployments. It is designed for traditional data center architectures, spine-leaf fabrics, and environments requiring advanced Layer 2/3 features with programmable automation through NX-API and DevOps tools.

Q: What use cases is this switch best suited for?
A: The Nexus 9236C is ideal for data center spine or aggregation layers, high-performance computing environments, IP storage fabrics, cloud-scale deployments, and multi-tenant service provider hosting. Its high port density and flexible breakout options make it perfect for large-scale leaf-spine architectures requiring 10G to 100G connectivity.

Q: Does the switch support redundant power supplies?
A: Yes, the N9K-C9236C supports redundant hot-swappable power supplies for high availability. Multiple power supply options are available including 1200W AC/HVDC (N9K-PUV-1200W) and 930W DC models (UCSC-PSU-930WDC, UCS-PSU-6332-DC), with both port-side intake and exhaust airflow configurations to match your data center design.

Q: What automation and programmability features are included?
A: Running Cisco NX-OS, the switch provides comprehensive automation support including NX-API for RESTful programmability, native Python scripting, CLI automation, and integration with DevOps tools such as Ansible, Puppet, and Chef. It also supports advanced telemetry and VXLAN for modern software-defined data center architectures.

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