• 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-F | 7260CX3 64-Port 100G Switch, Enhanced, 2x 1900W AC

DCS-7260CX3-64E-F

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Description

The Arista DCS-7260CX3-64E-F is a high-density 2RU data center switch designed for 100GbE leaf-spine architectures and high-performance computing environments. It delivers 64 QSFP28 ports supporting 100G, 50G, 40G, 25G, and 10G speeds plus 2 SFP+ management ports, with 12.8 Tbps throughput and 450ns ultra-low latency. The Enhanced model features dual 1900W AC power supplies with front-to-rear airflow, supporting 4.5W optics on all ports and select ports up to 5W for maximum flexibility in demanding deployments.

Features

Wire-speed Layer 2 and Layer 3 forwarding with line-rate performance on all ports
- Multi-speed support: 10G, 25G, 40G, 50G, and 100G on the same QSFP28 ports
- VXLAN hardware offload for overlay networks and data center interconnect
- Dynamic Buffer Allocation (DBA) with intelligent packet memory management
- Arista LANZ (Latency Analyzer) for real-time congestion visibility and analysis
- 128-way ECMP with consistent hashing and load balancing across multiple paths
- VRF-lite and VRF-aware VXLAN for tenant segmentation and multi-tenancy
- OpenFlow and DirectFlow support for software-defined networking integration
- VM Tracer for automated virtual machine discovery and policy enforcement
- Comprehensive QoS with 8 queues per port, priority flow control (PFC), and ECN
- IEEE 802.1Qbb Priority Flow Control and 802.1Qaz Enhanced Transmission Selection
- Zero Touch Provisioning (ZTP) for automated deployment and configuration
- Stateful Fault Repair (SFR) and Smart System Upgrade (SSU) for hitless maintenance
- Integrated packet capture with TCPDump for deep troubleshooting
- CloudVision integration for centralized management, telemetry, and automation
- 1+1 redundant hot-swappable power supplies and N+1 hot-swappable fans
- Enhanced power budget supporting 4.5W optics on all ports, select ports to 5W
- Standards-compliant Layer 2/3 protocols: STP, RSTP, MSTP, LACP, LLDP, IGMP, PIM

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

64x 100G QSFP28 ports (support 10G/25G/40G/50G/100G)
- 2x 10G SFP+ management ports
- Switching capacity: 12.8 Tbps full-duplex
- Forwarding rate: 4.2 billion packets per second (Bpps)
- Latency: 450ns (cut-through mode)
- Packet buffer: 42 MB shared dynamic buffer allocation
- MAC address table: 136,000 entries
- VLAN support: Up to 4096 VLANs
- CPU: Dual-core x86 processor
- Memory: 8 GB system RAM
- Flash storage: 30 GB
- Power supplies: 2x 1900W AC hot-swappable (1+1 redundant)
- Airflow: Front-to-rear (port side intake)
- Fans: N+1 hot-swappable high-speed fan modules
- Form factor: 2RU rack-mountable
- Dimensions: 3.5" H x 19" W x 18" D
- Weight: Approximately 34 lbs (15.4 kg)
- Operating system: Arista EOS
- Management: CLI, web GUI, SNMP, NetConf, gNMI, OpenConfig

FAQs

Q: What is the difference between the 7260CX3-64E-F and the standard 7260CX3-64-F?
A: The Enhanced (-64E) model includes upgraded 1900W power supplies and high-speed fans that support 4.5W optics on all 64 ports, with select ports supporting up to 5W transceivers. The standard model uses 750W power supplies and supports lower-power optics. Both share the same port configuration and performance specifications.

Q: Can this switch be used in both leaf and spine roles?
A: Yes, the DCS-7260CX3-64E-F is optimized for both leaf and spine deployments in modern data center fabrics. Its high density of 100G ports, low latency, and wire-speed Layer 2/3 forwarding make it ideal for collapsed spine or middle-of-row architectures as well as traditional two-tier designs.

Q: What routing protocols and Layer 3 features are supported?
A: The switch supports comprehensive Layer 3 routing including OSPF, OSPFv3, BGP, MP-BGP, IS-IS, and RIPv2. Advanced features include 128 ECMP paths, VRF, BFD, VRRP, VARP, IPv4/IPv6 ACLs, and VXL AN for overlay networking. It runs Arista EOS for full SDN integration with CloudVision.

Q: Is the DCS-7260CX3-64E-F suitable for AI/ML workloads?
A: Yes, the switch includes a hardware AI Analyzer capability that collects ECMP utilization data at 100-microsecond granularity, enabling detailed analysis of AI/ML traffic patterns. Combined with 42 MB of dynamic packet buffer and sub-microsecond latency, it handles the burst traffic characteristic of GPU clusters.

Q: What airflow direction does the -F suffix indicate?
A: The -F suffix denotes front-to-rear airflow, meaning cool air is drawn in from the port side and exhausted out the rear. This is standard for hot-aisle/cold-aisle data center configurations where equipment fronts face the cold aisle.

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