• Cisco N9K-C9316D-GX 16-port 400G switch with RJ45 ports
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Cisco

Cisco N9K-C9316D-GX | Nexus 9300-GX 16-Port 400G QSFP-DD Switch, 12.8 Tbps, Layer 3

N9K-C9316D-GX

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Description

The Cisco N9K-C9316D-GX Nexus 9316D-GX is a high-performance data center spine switch designed for cloud-scale environments. It features 16 QSFP-DD ports supporting 400G, 100G, and 40G speeds with flexible breakout capabilities, delivering 12.8 Tbps switching capacity. Built on Cisco Cloud Scale technology, this 1RU switch is ideal for modern data centers requiring ultra-low latency, VXLAN EVPN fabrics, and high-density connectivity for AI/ML clusters and hyperscale deployments.

Features

Layer 2 and Layer 3 switching with advanced routing protocols (BGP, OSPF, EIGRP, IS-IS)
- VXLAN EVPN for overlay network virtualization and multi-tenancy
- Cisco Cloud Scale ASIC technology for high-density scalability
- Standards-based VXLAN EVPN fabrics with hierarchical multi-site support
- Three-tier BGP architectures for horizontal and non-blocking IPv6 fabrics
- Support for Cisco ACI (Application Centric Infrastructure) spine deployment
- Cisco NX-OS modular operating system with process isolation and fault tolerance
- Advanced telemetry and programmability via REST APIs, NETCONF, and YANG models
- Smart Buffer technology for dynamic buffer allocation
- MPLS and Segment Routing support
- Sub-600ns latency for deterministic performance
- Hot-swappable redundant power supplies with AC, DC, and HVAC/HVDC options
- Precision timing and low-jitter fabric for GPU synchronization
- Automated provisioning through Cisco ACI, DCNM, or Intersight
- Comprehensive security features including MACsec, TrustSec, and access control lists

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

16 x 400G/100G/40G QSFP-DD ports with breakout support (2x200G, 4x100G, 8x50G, 4x50G, 2x50G, 4x25G, 4x10G)
- Switching capacity: 12.8 Tbps
- Forwarding rate: 4.3 Bpps (billion packets per second)
- MAC address table: 256,000 entries
- IPv4 LPM routes: up to 896,000 entries
- VLAN support: up to 4,096 VLANs
- System memory: 16 GB (NX-OS mode), 24 GB (ACI mode)
- Solid-State Disk (SSD): 128 GB
- CPU: Broadwell-DE 4-core processor
- Management ports: 1 x 10/100/1000BASE-T RJ45, 1 x 1G SFP+
- Console ports: 1 x RS-232, 1 x USB
- Power supply: 1100W (NXA-PAC-1100W-PI2/PE2, NXA-PDC-1100W-PI2/PE2, NXA-PHV-1100W-PI/PE)
- Typical power consumption: 1010W
- Dimensions (H x W x D): 8.59 x 44.13 x 56.58 cm (3.38 x 17.37 x 22.27 in)
- Form factor: 1RU rack-mountable
- Operating modes: Cisco NX-OS or Cisco ACI
- Airflow options: Port-side intake (front-to-back) or port-side exhaust (back-to-front)

FAQs

Q: What operating modes does the N9K-C9316D-GX support?
A: The N9K-C9316D-GX supports two operating modes: Cisco NX-OS standalone mode for traditional switching and Cisco ACI mode for intent-driven fabric deployments. It is primarily designed for ACI spine role but can also operate as a leaf in future configurations.

Q: Can the 400G ports be broken out to lower speeds?
A: Yes, all 16 QSFP-DD ports support flexible breakout configurations including 2x200G, 4x100G, 2x100G, 8x50G, 4x50G, 2x50G, 4x25G, 4x10G, and even 10G with QSA adapters, providing maximum deployment flexibility.

Q: What is the typical use case for the Nexus 9316D-GX?
A: The N9K-C9316D-GX is designed for data center spine layers in leaf-spine architectures, hyperscale cloud fabrics, AI/ML GPU cluster interconnects, and high-performance computing environments requiring ultra-low latency and high bandwidth for east-west traffic.

Q: What licensing is required for this switch?
A: The N9K-C9316D-GX requires Cisco Nexus software licenses for advanced features. Common options include Essentials and Advantage tiers, which unlock capabilities like VXLAN, EVPN, enhanced routing protocols, and telemetry. Licensing varies based on deployment mode (NX-OS or ACI).

Q: Is this switch compatible with existing 100G and 40G infrastructure?
A: Yes, the QSFP-DD ports are fully backward compatible with 100G QSFP28 and 40G QSFP+ transceivers, allowing seamless migration and integration with existing data center infrastructure while providing a path to 400G when needed.

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