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Arista

Arista DCS-7280CR3AK-48D6-F | 7280R3A 48-Port 100G Switch, 6x 400G QSFP-DD, 14.4 Tbps

SKU:DCS-7280CR3AK-48D6-F

Stock Status: Enquire

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Description

The Arista DCS-7280CR3AK-48D6-F is a high-performance 1RU data center switch router delivering 14.4 Tbps of non-blocking throughput with 48x 100GbE QSFP ports and 6x 400GbE QSFP-DD uplinks. Built for demanding cloud, service provider, and enterprise environments, this switch features large-scale routing with support for over 5M IP routes, TunnelSec encryption for wire-speed AES-256-GCM security, and an ultra-deep 8GB packet buffer for lossless performance. Ideal for leaf-spine architectures, AI/ML workloads, and internet peering applications requiring scalable Layer 2/3 features with front-to-rear airflow.

Features

Full Layer 2 and Layer 3 feature set with BGP, OSPF, IS-IS, VRRP, and PIM
- EVPN-VXLAN overlay networking with multihoming and gateway capabilities
- MPLS Label Switching with LDP, RSVP-TE, and Segment Routing support
- Advanced traffic engineering with ECMP, UCMP, and Traffic Engineering FRR
- Multi-Chassis Link Aggregation (MLAG) for active-active Layer 2 topologies
- Virtual Output Queue (VOQ) architecture eliminating head-of-line blocking
- Hierarchical QoS with flexible classification, policing, and shaping
- Accelerated sFlow and IPFIX for line-rate network telemetry
- Precision Time Protocol (PTP) and Synchronous Ethernet (SyncE) support
- Inband Network Telemetry with detailed per-flow visibility
- FlexRoute flexible forwarding table allocation for internet-scale routing
- TunnelSec for standards-based Layer 2/3 encryption at line rate
- IPv4/IPv6 VPN services, 6PE/6VPE, VPLS, and pseudowires
- Advanced security with algorithmic ACLs and policy-based routing
- Zero Touch Provisioning (ZTP) and CloudVision integration for automation
- Hot-swappable components for high availability and serviceability

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

48x 100GbE QSFP100 ports, 6x 400GbE QSFP-DD ports
- Maximum port configurations: up to 68x 100G ports or 114x 25/10G ports
- Switching capacity: 14.4 Tbps full-duplex (7.2 Tbps)
- Forwarding rate: 2.7 billion packets per second
- Packet buffer: 8 GB deep buffer with VOQ architecture
- System memory: 64 GB RAM, eight-core x86 CPU, 120 GB SSD
- Routing scale: FlexRoute support for over 5M IP routes
- Latency: From 3.8 microseconds
- TunnelSec encryption: Wire-speed AES-256-GCM on all ports, IEEE 802.1AE MACsec
- Dimensions: 48.3 x 4.4 x 59.2 cm (19 x 1.75 x 23.3 inches), 1RU
- Weight: Approximately 14.8 kg (32.6 lbs)
- Power supply: 2x PWR-1511-AC or PWR-1511-DC (1500W), front-to-rear airflow
- Management: Arista EOS, CLI, REST API, SNMP, NetDB, ZTP
- Redundancy: Hot-swappable dual power supplies and fans

FAQs

Q: What is the difference between the DCS-7280CR3AK-48D6-F and the base 7280CR3A-48D6 model?
A: The DCS-7280CR3AK-48D6-F includes enhanced features: large-scale routing with FlexRoute supporting over 5M IP routes, TunnelSec encryption for wire-speed AES-256-GCM security across all ports, and algorithmic ACLs for flexible policy control. The base model has standard routing scale and no built-in encryption capabilities.

Q: Can this switch support mixed port speeds on the QSFP and QSFP-DD interfaces?
A: Yes, the switch supports flexible port speeds including 10G, 25G, 40G, 50G, 100G on the QSFP100 ports using appropriate transceivers, and up to 400G on the QSFP-DD ports. This allows for cost-effective migration paths and mixed-speed deployments within the same chassis.

Q: What network architectures is this switch designed for?
A: The DCS-7280CR3AK-48D6-F is purpose-built for high-density leaf-spine data center fabrics, internet peering and exchange points, AI/ML cluster networking, high-performance storage networks, EVPN-VXLAN overlays, and service provider MPLS environments requiring large routing tables and deep buffers.

Q: Does this switch require software licenses for full functionality?
A: The switch ships with base EOS functionality. Optional licenses include FLX-Lite for enhanced routing up to 256K routes, FLX for advanced routing up to 2M routes with full MPLS features, and enhanced security licenses for TunnelSec and IPsec. The K-variant includes hardware support for these advanced features.

Q: What is the significance of the front-to-rear airflow designation?
A: The F suffix indicates front-to-rear airflow, meaning air flows from the port side to the fan side. This is critical for proper hot-aisle/cold-aisle data center design. The switch must be deployed with compatible PSUs and fans that match the airflow direction to ensure optimal cooling and prevent equipment damage.

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