• 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-R | 7260X3 64-Port 100G Switch, 12.8Tbps, 2x 10G SFP+

DCS-7260CX3-64E-DC-R

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Description

The Arista DCS-7260CX3-64E-DC-R is a high-density 2RU data center switch delivering 64x 100GbE QSFP28 ports with flexible multi-speed support for 10G, 25G, 40G, 50G, and 100G connectivity. Engineered for spine, leaf, and high-density storage tiers, it features ultra-low 450ns latency, 12.8Tbps switching capacity, and dual 1900W DC power supplies with rear-to-front airflow for optimized data center cooling. The enhanced model supports 4.5W optics on all ports and delivers predictable performance for latency-sensitive applications including AI/ML workloads and financial trading systems.

Features

Wire-speed Layer 2 and Layer 3 forwarding across all ports
- VXLAN routing and bridging for overlay networks
- Dynamic Buffer Allocation (DBA) for intelligent packet buffering
- Low latency 450ns cut-through forwarding mode
- Advanced congestion management with 42MB shared packet buffer
- LANZ (Latency Analyzer) for real-time congestion visibility
- AI Analyzer hardware capability for ECMP traffic pattern analysis
- Comprehensive routing protocols: OSPF, BGP, IS-IS, RIPv2
- 128 ECMP paths for load balancing
- VRF support for multi-tenancy and network segmentation
- OpenFlow and DirectFlow support for SDN integration
- VM Tracer for virtual machine discovery and tracking
- Zero Touch Provisioning (ZTP) for automated deployment
- Hot-swappable 1900W DC power supplies (1+1 redundancy)
- N+1 hot-swappable fan modules with rear-to-front airflow
- Dual-core x86 CPU with 8GB RAM and 30GB flash storage
- IEEE 802.1Q VLAN support (up to 4096 VLANs)
- 802.1AB LLDP for device discovery
- Integrated packet capture with TCPDump
- Enhanced model supports high-power optics (4.5W all ports, 5W on select ports)

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 QSFP28 100GbE ports (multi-speed: 10G/25G/40G/50G/100G)
- 2x SFP+ 1/10GbE management ports
- Switching capacity: 12.8 Tbps full-duplex
- Forwarding rate: 4.2 billion packets per second
- Latency: 450ns in cut-through mode
- Packet buffer: 42MB dynamic buffer allocation
- MAC address table: 136,000 entries
- System memory: 8GB RAM
- Flash storage: 30GB
- Dual-core x86 CPU processor
- Power supply: Dual 1900W DC hot-swappable PSUs
- Airflow: Rear-to-front (R)
- Form factor: 2RU fixed configuration
- Management: CLI, REST API, SNMP, NETCONF, OpenFlow
- Enhanced model supports 4.5W optics on all ports (select ports support 5W)

FAQs

Q: What deployment scenarios is the DCS-7260CX3-64E-DC-R best suited for?
A: This switch is optimized for 100GbE spine and leaf tiers, high-density storage networks, and latency-sensitive applications such as financial trading systems and AI/ML workloads. The enhanced model provides higher power budget for optics across all ports, making it ideal for long-reach connectivity in large data centers. The DC power option suits environments with DC infrastructure.

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

Q: Can this switch support multiple port speeds simultaneously?
A: Yes, each QSFP28 port supports flexible breakout configurations, allowing mixed speeds including 1x 100G, 1x 40G, 2x 50G, or 4x 25G/10G on the same port. This enables heterogeneous network architectures and smooth migration paths from 10G/40G to 100G infrastructure.

Q: What Layer 3 routing protocols are supported?
A: The switch supports comprehensive Layer 3 routing including OSPF, OSPFv3, BGP, MP-BGP, IS-IS, and RIPv2. It provides 128 ECMP paths, VRF support, BFD, VRRP, and virtual ARP (VARP) for advanced routing architectures. It also supports IPv4 and IPv6 ACLs with L2/L3/L4 field matching.

Q: Is Arista EOS software required, and what are the licensing requirements?
A: The switch runs Arista EOS (Extensible Operating System). Licensing depends on the feature set required. Contact your Arista partner or representative for current licensing options and subscription requirements for advanced features such as CloudVision integration and VXLAN routing.

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