• Gray metal arista dcs-7260cx3-64-f 64-port 100g switch with multiple ports and ventilation grilles backside view
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Arista

Arista DCS-7260CX3-64E-DC-F | 7260CX3 64-Port 100G Switch, 2x 10G SFP+, DC, 2RU

DCS-7260CX3-64E-DC-F

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Description

The Arista DCS-7260CX3-64E-DC-F is a high-density 2RU data center switch delivering 64x 100GbE QSFP28 ports and 2x 10GbE SFP+ ports with 12.8 Tbps switching capacity. This enhanced model features DC power supplies with front-to-rear airflow, supporting 4.5W optics on all ports with 1900W power and high-speed fans. Ideal for spine, leaf, or high-density storage deployments requiring ultra-low 450ns latency, wire-speed Layer 2/3 forwarding, and dynamic 42MB packet buffer allocation for demanding data center and financial trading environments.

Features

Wire-speed Layer 2 and Layer 3 forwarding with line-rate performance on all ports
- Ultra-low 450ns latency in cut-through mode for latency-sensitive workloads
- 42MB shared packet buffer with Dynamic Buffer Allocation (DBA) for intelligent congestion management
- Multi-speed port support: 10G/25G/40G/50G/100G per QSFP28 port with flexible breakout
- Enhanced power and cooling: supports 4.5W optics on all ports with 1900W DC PSUs
- Dual hot-swappable 1900W DC power supplies with front-to-rear airflow
- N+1 hot-swappable fan modules with color-coded identification for serviceability
- Hardware AI Analyzer for ECMP utilization data with 100 microsecond granularity
- VXLAN support for network virtualization and overlay networks
- Comprehensive Layer 3 routing: OSPF, BGP, IS-IS, 128 ECMP paths, VRF, BFD
- Advanced QoS with 8 priority queues, WRED, strict priority, and WRR scheduling
- Zero-downtime maintenance: live software patching, stateful fault repair (SFR), smart system upgrade (SSU)
- OpenFlow and DirectFlow support for software-defined networking (SDN)
- Integrated LANZ (Latency Analyzer) for real-time buffer monitoring and congestion visibility
- Arista EOS with unified operating system across all Arista platforms
- 2RU fixed-configuration design optimized for leaf, spine, or storage tier deployments

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

Ports: 64x 100GbE QSFP28, 2x 10GbE SFP+
- Port Speed: 10G/25G/40G/50G/100G (multi-speed support per port)
- Switching Capacity: 12.8 Tbps full-duplex
- Forwarding Rate: 4.2 billion packets per second (Bpps)
- Latency: 450ns (cut-through mode)
- Packet Buffer: 42MB shared dynamic buffer allocation
- MAC Address Table: 136,000 entries
- CPU: Dual-core x86 processor
- Memory: 8GB system RAM
- Flash Storage: 30GB
- Power Supply: Dual 1900W DC hot-swappable PSUs
- Airflow: Front-to-rear
- Form Factor: 2RU rack-mountable
- Management: CLI, Web UI, SNMP, REST API, OpenFlow
- Operating Temperature: 0°C to 40°C
- Certifications: IEEE 802.3ba, IEEE 802.3by, RoHS, CE, FCC

FAQs

Q: What is the difference between the 7260CX3-64E-DC-F and the standard 7260CX3-64?
A: The 64E-DC-F is the enhanced model with DC power supplies and front-to-rear airflow. It supports 4.5W optics on all ports (with select ports supporting up to 5W), requires 1900W DC PSUs and high-speed fans, versus the standard model's 750W AC PSUs. The 64E provides greater power and cooling capacity for high-density optical deployments.

Q: Can this switch support multiple speed configurations simultaneously?
A: Yes, the QSFP28 ports support flexible breakout configurations including 100GbE (1x100G), 50GbE (2x50G), 40GbE (1x40G), 25GbE (4x25G), or 10GbE (4x10G) per port. This allows heterogeneous speed deployments across the same switch to support varied workloads and migration scenarios.

Q: What routing protocols and Layer 3 features are supported?
A: The switch supports full Layer 3 routing including OSPF, OSPFv3, BGP, MP-BGP, IS-IS, and RIPv2. It includes 128 ECMP paths, VRF, BFD, VRRP, VARP, and comprehensive IPv4/IPv6 ACLs with L2/L3/L4 field matching for advanced data center routing architectures.

Q: Is this switch suitable for low-latency financial trading or AI/ML workloads?
A: Yes, with 450ns cut-through latency, deterministic performance, and hardware AI Analyzer capable of analyzing traffic patterns at 100 microsecond intervals, the 7260CX3-64E is optimized for latency-sensitive high-frequency trading and modern AI/ML fabric deployments with predictable performance.

Q: What software and management platforms are compatible with this switch?
A: The switch runs Arista EOS (Extensible Operating System) with support for CloudVision management, VXLAN, VM Tracer, OpenFlow, DirectFlow for SDN, and comprehensive APIs (REST, eAPI). It includes zero-downtime features like live patching, stateful fault repair, and smart system upgrade.

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