HPE Aruba Networking CX 6400 Switch
Brand: HPE | Category: Network Switches
SKU: HPE-ARUBA-CX6400 | Part #: R8N89A | MPN: R8N89A
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About the HPE Aruba Networking CX 6400 Switch
The HPE Aruba Networking CX 6400 Switch (R8N89A) is a modular chassis platform with 5 line card slots and uplink capacity reaching up to 100GbE on supported line cards, delivering the port density and flexibility required for modern campus aggregation and core network deployments. Built on HPE's proven architecture, this Layer 3 switch combines high-performance forwarding with enterprise-grade redundancy and security, making it the ideal choice for network engineers and IT infrastructure teams managing mission-critical environments.
The CX 6400 runs HPE Aruba CX OS and supports advanced routing protocols including OSPF, BGP, RIP, PBR, VRF, and ECMP for sophisticated network topologies. Management is streamlined through HPE Aruba Central cloud console, CLI, REST API, SNMP, and Ansible integration. Redundancy features—including redundant management modules, redundant power supplies, and hot-swappable line cards—work alongside Non-Stop Forwarding, Graceful Restart, and BFD to ensure continuous availability. The platform delivers comprehensive security with 802.1X port authentication, MACsec encryption (AES-256 on supported line cards), dynamic segmentation, ACLs, DHCP snooping, and Dynamic ARP Inspection. Support for up to 4094 VLANs and VSX active-active chassis redundancy enable flexible, resilient network designs. Power delivery reaches up to 90W per port (IEEE 802.3bt) on supported line cards, with backward compatibility for IEEE 802.3at and IEEE 802.3af standards. Telemetry capabilities include gNMI/gRPC streaming and sFlow for real-time network visibility.
Campus and Core Network Use Cases
- Multi-site campus aggregation with redundant uplinks and active-active failover via VSX
- High-density PoE deployments powering IP phones, wireless access points, and IoT endpoints across enterprise floors
- Core routing with BGP and OSPF for reliable inter-building and WAN connectivity
- Secure network segmentation using dynamic segmentation and MACsec encryption
- Real-time network telemetry and monitoring through gNMI/gRPC streaming for proactive management
For HPE enterprise networking requirements, contact Omnixon Global to request a quotation on part number R8N89A.
Technical Specifications
| Brand | HPE |
| Category | Network Switches |
| SKU | HPE-ARUBA-CX6400 |
| Part Number | R8N89A |
| Condition | New |
| Form Factor | Modular Switch |
| Interface | 100GbE |
| Speed | 100GbE fabric |
| Series | CX 6400 |
| Manufacturer Part Number | R8N89A |
| Form Factor | Modular chassis |
| Chassis Slots | 5 line card slots |
| Switch Type | Modular chassis – campus aggregation / core |
| Network Operating System | HPE Aruba CX OS |
| Layer | Layer 3 |
| Routing Protocols | OSPF, BGP, RIP, PBR, VRF, ECMP |
| PoE Standard | IEEE 802.3bt (PoE++), IEEE 802.3at (PoE+), IEEE 802.3af (PoE) |
| Maximum PoE per Port | Up to 90W (IEEE 802.3bt) on supported line cards |
| Management | HPE Aruba Central (cloud), CLI, REST API, SNMP, Ansible |
| Redundancy | Redundant management modules, redundant power supplies, hot-swappable line cards |
| High Availability | Non-Stop Forwarding (NSF), Graceful Restart, BFD |
| Security Features | 802.1X port authentication, MACsec (AES-256 on supported line cards), dynamic segmentation, ACLs, DHCP snooping, Dynamic ARP Inspection |
| VLAN Support | 4094 VLANs |
| Stacking | VSX (Virtual Switching Extension) for active-active chassis redundancy |
| Telemetry | gNMI/gRPC streaming telemetry, sFlow |
| Uplink Capacity | Up to 100GbE on supported uplink line cards |
| Product Line | HPE Aruba CX 6400 Switch Series |
Frequently Asked Questions about HPE Aruba Networking CX 6400 Switch
What does the HPE Aruba Networking CX 6400 Switch do?
The HPE Aruba Networking CX 6400 Switch is enterprise networking hardware for data-center, campus, and branch deployments. Common roles include core/distribution switching, server uplinks, top-of-rack fabric, and edge connectivity in mixed Cisco/Juniper/Arista environments.
What are the headline specs of the HPE Aruba Networking CX 6400 Switch?
Key specifications for the HPE Aruba Networking CX 6400 Switch: form factor Modular Switch; new condition; type Modular Chassis (5/10-slot); ports Up to 384 ports; speed 100GbE fabric; poe 90W per port; redundancy Hot-swappable PSU and fans; management Aruba Central. Manufacturer part number R8N89A. For the full datasheet with electrical, environmental, and compliance details, contact our pre-sales engineering team.
Is the HPE Aruba Networking CX 6400 Switch compatible with my infrastructure?
The HPE Aruba Networking CX 6400 Switch interoperates with standard switching protocols (LACP, MLAG/VPC, 802.1Q, OSPF/BGP). For specific cross-vendor scenarios — Cisco-to-Arista MLAG peering, fabric integration with Cumulus/SONiC, or migration from legacy Catalyst — our network engineers map a compatibility plan as part of the RFQ.